:root {
  /* Green / Lime Spectrum */
  --jungle-teal: #007f5f;
  --sea-green: #2b9348;
  --bright-fern: #55a630;
  --lime-moss: #80b918;
  --yellow-green: #aacc00;
  --lemon-lime: #bfd200;
  --lemon-lime-2: #d4d700;
  --lemon-lime-3: #dddf00;
  --yellow: #eeef20;
  --yellow-2: #ffff3f;

  /* Blue / Cerulean Spectrum */
  --deep-space-blue: #012a4a;
  --yale-blue: #013a63;
  --yale-blue-2: #01497c;
  --yale-blue-3: #014f86;
  --rich-cerulean: #2a6f97;
  --cerulean: #2c7da0;
  --air-force-blue: #468faf;
  --steel-blue: #61a5c2;
  --sky-blue-light: #89c2d9;
  --light-blue: #a9d6e5;

  /* Neutrals */
  --bright-snow: #f8f9fa;
  --platinum: #e9ecef;
  --alabaster-grey: #dee2e6;
  --pale-slate: #ced4da;
  --pale-slate-2: #adb5bd;
  --slate-grey: #6c757d;
  --iron-grey: #495057;
  --gunmetal: #343a40;
  --carbon-black: #212529;

  /* Functional UI Tokens */
  --bg-primary: var(--bright-snow);
  --bg-surface: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.94);
  --border-subtle: rgba(206, 212, 218, 0.7);
  --border-active: var(--cerulean);
  --text-main: var(--deep-space-blue);
  --text-muted: var(--iron-grey);
  --text-dim: var(--slate-grey);

  --brand-main: var(--yale-blue-2);
  --brand-glow: rgba(1, 73, 124, 0.22);
  --bio-green: var(--bright-fern);
  --bio-lime: var(--lime-moss);

  --warn-bg: #fff9ea;
  --warn-border: #d48b17;
  --danger-bg: #fdf3f3;
  --danger-border: #c84141;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(circle at 10% 8%, rgba(137, 194, 217, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 90% 92%, rgba(85, 166, 48, 0.12) 0%, transparent 50%);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  font-size: 15px;
}

/* 1. App Header - Transparent with Blur on Scroll */
.app-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid rgba(222, 226, 230, 0.5);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(248, 249, 250, 0.75);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
}

.app-header.scrolled {
  background: rgba(248, 249, 250, 0.42);
  box-shadow: 0 4px 24px rgba(1, 42, 74, 0.08);
  border-bottom: 1px solid rgba(222, 226, 230, 0.35);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--yale-blue), var(--cerulean));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(1, 42, 74, 0.25);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand-icon {
  transform: scale(1.08) rotate(-5deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-text h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--deep-space-blue);
  line-height: 1.15;
}

.brand-tagline {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

/* 2. Unified Bottom Control Bar (Species Selector Centered MAI JOS Alongside Camera View Buttons) */
.viewport-controls-bottom {
  position: absolute;
  bottom: 16px;
  left: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  z-index: 25;
}

.species-bottom-dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 6px 14px;
  border-radius: 40px;
  border: 1.5px solid var(--border-subtle);
  box-shadow: 0 10px 32px rgba(1, 42, 74, 0.14);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 96%;
}

.species-bottom-dock:hover {
  box-shadow: 0 12px 38px rgba(1, 42, 74, 0.2);
  border-color: var(--cerulean);
}

.species-select-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--platinum);
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid var(--pale-slate);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.species-select-pill:hover {
  border-color: var(--cerulean);
  background: #ffffff;
}

.species-select-pill label {
  font-size: 12px;
  font-weight: 800;
  color: var(--yale-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  white-space: nowrap;
}

.species-select-pill label i {
  color: var(--bright-fern);
}

.species-select {
  background: transparent;
  border: none;
  color: var(--deep-space-blue);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  outline: none;
  cursor: pointer;
  padding-right: 4px;
}

.species-select option {
  background: #ffffff;
  color: var(--deep-space-blue);
  font-weight: 600;
  padding: 8px;
}

.viewport-btn-group {
  display: flex;
  gap: 6px;
  align-items: center;
}

.viewport-btn-group .btn {
  background: #ffffff;
  border: 1px solid var(--pale-slate);
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--yale-blue);
  border-radius: 20px;
  box-shadow: 0 2px 6px rgba(1, 42, 74, 0.04);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.viewport-btn-group .btn:hover {
  background: var(--platinum);
  border-color: var(--cerulean);
  color: var(--deep-space-blue);
  transform: translateY(-1px);
}

.viewport-hint-pill {
  pointer-events: auto;
  font-size: 11px;
  font-weight: 600;
  color: var(--yale-blue-2);
  background: rgba(248, 249, 250, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(206, 212, 218, 0.7);
  box-shadow: 0 2px 8px rgba(1, 42, 74, 0.06);
}

/* Layout Grid */
.layout {
  display: grid;
  grid-template-columns: 360px 1fr 380px;
  gap: 22px;
  padding: 22px;
  max-width: 1780px;
  margin: 0 auto;
  min-height: calc(100vh - 110px);
}

@media (max-width: 1300px) {
  .layout {
    grid-template-columns: 340px 1fr;
  }

  .info-column {
    grid-column: span 2;
  }
}

/* Tablet & Medium Screens */
@media (max-width: 900px) {
  .layout {
    display: flex;
    flex-direction: column;
    padding: 14px;
    gap: 16px;
    min-height: auto;
  }

  /* Put 3D viewport on top so kids immediately see their plant on phones/tablets */
  .viewport-column {
    order: -1;
    position: relative;
    top: 0;
    width: 100%;
    height: 50vh;
    min-height: 360px;
    max-height: 480px;
  }

  .controls-column {
    order: 2;
    width: 100%;
  }

  .info-column {
    order: 3;
    width: 100%;
    grid-column: auto;
  }

  .species-bottom-dock {
    max-width: 96%;
    gap: 8px;
    padding: 6px 12px;
  }
}

/* Mobile Phones (Handheld screens up to 600px) */
@media (max-width: 600px) {
  .app-header {
    padding: 10px 14px;
    min-height: 58px;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

  .brand-text h1 {
    font-size: 15.5px;
    gap: 3px;
  }

  .brand-tagline {
    font-size: 10px;
  }

  .layout {
    padding: 8px;
    gap: 12px;
  }

  .panel {
    padding: 16px 14px;
    border-radius: 16px;
    gap: 14px;
  }

  .panel-header {
    padding-bottom: 10px;
  }

  .panel-title {
    font-size: 14px;
  }

  /* 3D Viewport & Accessible Card on Mobile Phone */
  .viewport-column {
    height: auto;
    min-height: 0;
    max-height: none;
    position: static;
    top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-radius: 16px;
  }

  .viewport-container {
    height: 390px;
    min-height: 360px;
    flex: none;
    width: 100%;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
  }

  /* Minimized Corner HUD on phone */
  .viewport-telemetry-corner {
    top: 8px;
    right: 8px;
    padding: 6px 10px;
    min-width: 135px;
    max-width: 165px;
    border-radius: 12px;
  }

  .corner-hud-title {
    font-size: 9px;
  }

  .corner-hud-row {
    font-size: 10.5px;
    padding: 1.5px 0;
  }

  .corner-hud-val {
    font-size: 10px;
  }

  .corner-hud-status {
    font-size: 10px;
    padding-top: 3px;
  }

  /* Accessible Controls Card moved below 3D Canvas on phone */
  .viewport-controls-bottom {
    position: static;
    bottom: auto;
    left: auto;
    right: auto;
    width: 100%;
    margin-top: 2px;
    pointer-events: auto;
  }

  .species-bottom-dock {
    padding: 10px 12px;
    border-radius: 16px;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    background: #ffffff;
    box-shadow: 0 4px 16px rgba(1, 42, 74, 0.08);
  }

  .species-select-pill {
    padding: 6px 10px;
    gap: 6px;
    flex: 1 1 55%;
    justify-content: flex-start;
  }

  .species-select-pill label {
    font-size: 11px;
  }

  .species-select {
    font-size: 12px;
    max-width: 125px;
  }

  .viewport-btn-group {
    display: flex;
    gap: 5px;
    flex: 0 0 auto;
  }

  .viewport-btn-group .btn {
    padding: 6px 10px;
    font-size: 11px;
  }

  .viewport-btn-group .btn.btn-icon-only {
    width: 32px;
    height: 32px;
    padding: 0;
  }

  .btn-edu-action {
    padding: 7px 10px;
    font-size: 11px;
    flex: 1 1 48%;
    justify-content: center;
  }

  .viewport-edu-overlay {
    top: 10px;
    left: 10px;
    right: 10px;
    width: auto;
    max-width: none;
    padding: 14px;
  }

  /* Sliders and Touch Ergonomics */
  .range-slider {
    height: 8px;
  }

  .range-slider::-webkit-slider-thumb {
    width: 24px;
    height: 24px;
  }

  .range-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
  }

  .control-group {
    padding: 12px;
    border-radius: 14px;
  }

  .control-label {
    font-size: 13px;
  }

  .control-val {
    font-size: 13px;
  }

  /* Presets Grid: 2x2 on mobile */
  .presets-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .presets-grid .btn {
    padding: 10px 8px;
    font-size: 12px;
    justify-content: center;
  }

  .btn-reglare {
    padding: 13px 16px;
    font-size: 14px;
  }

  /* Compare card on mobile */
  .compare-btn-row {
    flex-direction: column;
    gap: 8px;
  }

  .compare-btn-row .btn {
    width: 100%;
    justify-content: center;
  }

  .comparison-split-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* Diagnostic telemetry and specs cards */
  .diagnostic-card {
    padding: 14px;
  }

  .spec-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* Landing page (main.html) mobile responsiveness */
  .welcome-container {
    padding: 12px 10px;
    gap: 20px;
  }

  .welcome-hero-card {
    padding: 22px 14px;
    border-radius: 18px;
  }

  .welcome-hero-badge {
    font-size: 11.5px;
    padding: 5px 12px;
  }

  .welcome-hero-title {
    font-size: 22px;
    line-height: 1.25;
  }

  .welcome-hero-subtitle {
    font-size: 13px;
    line-height: 1.55;
  }

  .welcome-hero-actions {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }

  .welcome-hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 13px 18px;
    font-size: 14px;
  }

  .welcome-stats-row {
    flex-direction: column;
    gap: 8px;
    width: 100%;
  }

  .welcome-stat-pill {
    width: 100%;
    padding: 10px 14px;
  }

  .welcome-section {
    gap: 16px;
  }

  .welcome-section-header h3 {
    font-size: 19px;
  }

  .welcome-section-header p {
    font-size: 13px;
  }

  .welcome-plants-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .welcome-plant-card {
    padding: 18px 14px;
  }

  .welcome-sensors-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .welcome-sensor-card {
    padding: 16px 14px;
  }

  .welcome-guide-box {
    padding: 18px 14px;
    border-radius: 16px;
  }

  .welcome-steps-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* Glass Panels - Lighter & High Contrast */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 28px rgba(15, 45, 32, 0.06);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1.5px solid var(--border-subtle);
  padding-bottom: 12px;
}

.panel-title {
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-title .pill {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-sage);
  box-shadow: 0 0 8px rgba(103, 148, 54, 0.4);
}

/* Sensor Controls with Animated FontAwesome Icons */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #ffffff;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-subtle);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 2px 8px rgba(5, 102, 141, 0.04);
}

.control-group:hover {
  border-color: var(--c-cerulean);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(5, 102, 141, 0.1);
}

.control-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.control-icon-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ico-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.ico-moist {
  background: rgba(66, 122, 161, 0.16);
  color: var(--c-baltic);
}

.ico-temp {
  background: rgba(212, 139, 23, 0.16);
  color: #b56c04;
}

.ico-light {
  background: rgba(165, 190, 0, 0.22);
  color: #647500;
}

.ico-ec {
  background: rgba(103, 148, 54, 0.18);
  color: var(--c-sage);
}

.control-group:hover .ico-circle {
  transform: scale(1.18) rotate(8deg);
  box-shadow: 0 4px 12px rgba(5, 102, 141, 0.18);
}

.control-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
}

.control-val {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  color: var(--c-baltic);
  background: var(--c-alice);
  padding: 3px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.control-group:hover .control-val {
  border-color: var(--c-cerulean);
  color: var(--c-baltic);
}

.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 6px;
  background: #d3e3ef;
  outline: none;
  cursor: pointer;
  transition: background 0.3s ease;
}

.range-slider:hover {
  background: #c3d9ea;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ffffff;
  border: 3.5px solid var(--c-baltic);
  box-shadow: 0 2px 10px rgba(5, 102, 141, 0.35);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.22);
  box-shadow: 0 4px 14px rgba(5, 102, 141, 0.5);
  border-color: var(--c-sage);
}

.control-hint {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  font-weight: 600;
}

.ideal-range {
  color: var(--c-sage);
  font-weight: 700;
}

/* Preset Buttons */
.presets-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-subtle);
  background: #ffffff;
  color: var(--c-baltic);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-align: center;
  box-shadow: 0 2px 6px rgba(5, 102, 141, 0.05);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn:hover {
  background: #f0f6fa;
  border-color: var(--c-cerulean);
  transform: translateY(-1px);
}

/* Homeostazie / Stabil - Verde-Cyan Închis */
.btn-preset-optimal,
#btn-preset-optimal {
  background: linear-gradient(135deg, #005252, #006d6d) !important;
  color: #ffffff !important;
  border: 1.5px solid #004545 !important;
  box-shadow: 0 4px 12px rgba(0, 82, 82, 0.28) !important;
}

.btn-preset-optimal:hover,
#btn-preset-optimal:hover {
  background: linear-gradient(135deg, #006666, #008282) !important;
  border-color: #009999 !important;
  color: #ffffff !important;
  box-shadow: 0 6px 16px rgba(0, 102, 102, 0.38) !important;
  transform: translateY(-2px);
}

/* Secetă - Warm Amber / Orange-Red */
.btn-preset-drought,
#btn-preset-drought {
  background: linear-gradient(135deg, #c2410c, #b91c1c) !important;
  color: #ffffff !important;
  border: 1.5px solid #991b1b !important;
  box-shadow: 0 4px 12px rgba(185, 28, 28, 0.25) !important;
}

.btn-preset-drought:hover,
#btn-preset-drought:hover {
  background: linear-gradient(135deg, #ea580c, #dc2626) !important;
  border-color: #ef4444 !important;
  color: #ffffff !important;
  box-shadow: 0 6px 16px rgba(220, 38, 38, 0.35) !important;
  transform: translateY(-2px);
}

/* Suprasaturare - Culoare Albastră */
.btn-preset-flood,
#btn-preset-flood {
  background: linear-gradient(135deg, #0284c7, #0369a1) !important;
  color: #ffffff !important;
  border: 1.5px solid #0284c7 !important;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.30) !important;
}

.btn-preset-flood:hover,
#btn-preset-flood:hover {
  background: linear-gradient(135deg, #0ea5e9, #0284c7) !important;
  border-color: #38bdf8 !important;
  color: #ffffff !important;
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.40) !important;
  transform: translateY(-2px);
}

/* Umbră - Indigo Întunecat */
.btn-preset-dark,
#btn-preset-dark {
  background: linear-gradient(135deg, #1e1b4b, #2e266d) !important;
  color: #ffffff !important;
  border: 1.5px solid #312e81 !important;
  box-shadow: 0 4px 12px rgba(30, 27, 75, 0.38) !important;
}

.btn-preset-dark:hover,
#btn-preset-dark:hover {
  background: linear-gradient(135deg, #2e2870, #4338ca) !important;
  border-color: #6366f1 !important;
  color: #ffffff !important;
  box-shadow: 0 6px 16px rgba(49, 46, 129, 0.48) !important;
  transform: translateY(-2px);
}

.btn.primary {
  background: linear-gradient(135deg, var(--c-sage), var(--c-lime));
  color: #ffffff;
  border: none;
  font-weight: 800;
  font-size: 14px;
  text-align: center;
  box-shadow: 0 4px 14px rgba(103, 148, 54, 0.35);
}

.btn.primary:hover {
  background: linear-gradient(135deg, #577f2d, #90a500);
  box-shadow: 0 6px 18px rgba(103, 148, 54, 0.45);
}

.btn.outline-danger {
  border-color: rgba(200, 65, 65, 0.4);
  background: #fdf5f5;
  color: #b52b2b;
}

.btn.outline-danger:hover {
  background: #fce8e8;
  border-color: #c84141;
}

/* Ethical Guard Alert Box */
.ethical-banner {
  background: #f2f7ec;
  border: 1.5px solid rgba(103, 148, 54, 0.35);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: all 0.3s ease;
}

.ethical-banner.alert-warn {
  border-color: var(--warn-border);
  background: var(--warn-bg);
}

.ethical-banner.alert-critical {
  border-color: var(--danger-border);
  background: var(--danger-bg);
}

.ethical-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 8px;
  background: rgba(103, 148, 54, 0.18);
  color: #4b6e24;
}

.alert-warn .ethical-badge {
  background: rgba(212, 139, 23, 0.18);
  color: #ad6d08;
}

.alert-critical .ethical-badge {
  background: rgba(200, 65, 65, 0.18);
  color: #a82525;
}

.ethical-desc {
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.6;
  font-weight: 500;
}

/* 3D Viewport Column */
.viewport-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 86px;
  height: calc(100vh - 110px);
  min-height: 520px;
}

.viewport-container {
  flex: 1;
  height: 100%;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1.5px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 38%, #ffffff 0%, #d8e5f2 90%);
  box-shadow: 0 12px 35px rgba(5, 102, 141, 0.09);
}

#webgl-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#webgl-canvas:active {
  cursor: grabbing;
}

/* Overlays on 3D Viewport */
.viewport-overlay-top {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.viewport-chip {
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--border-subtle);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-baltic);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(5, 102, 141, 0.08);
}

.pulse-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 8px rgba(165, 190, 0, 0.6);
  animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
  0% {
    transform: scale(0.9);
    opacity: 0.7;
  }

  50% {
    transform: scale(1.3);
    opacity: 1;
  }

  100% {
    transform: scale(0.9);
    opacity: 0.7;
  }
}

/* Minimized Telemetry HUD in the Top-Right Corner */
.viewport-telemetry-corner {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 30;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  box-shadow: 0 8px 24px rgba(1, 42, 74, 0.12);
  min-width: 200px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.viewport-telemetry-corner.is-collapsed {
  padding: 8px 12px;
  min-width: 175px;
}

.viewport-telemetry-corner:hover {
  border-color: var(--cerulean);
  box-shadow: 0 10px 30px rgba(1, 42, 74, 0.18);
}

.corner-hud-header {
  background: transparent;
  border: none;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--deep-space-blue);
  cursor: pointer;
  padding: 0;
  margin: 0;
  user-select: none;
  font-family: inherit;
  outline: none;
  transition: color 0.2s ease;
}

.corner-hud-header:hover {
  color: var(--yale-blue);
}

.corner-hud-title {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.corner-hud-chevron {
  font-size: 11px;
  color: var(--cerulean);
  margin-left: 10px;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.2s ease;
}

.viewport-telemetry-corner.is-collapsed .corner-hud-chevron {
  transform: rotate(0deg);
}

.viewport-telemetry-corner:not(.is-collapsed) .corner-hud-chevron {
  transform: rotate(180deg);
  color: var(--yale-blue);
}

.corner-hud-content {
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, margin-top 0.3s ease, padding-top 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.viewport-telemetry-corner.is-collapsed .corner-hud-content {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  padding-top: 0;
  pointer-events: none;
}

.viewport-telemetry-corner:not(.is-collapsed) .corner-hud-content {
  max-height: 250px;
  opacity: 1;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(206, 212, 218, 0.6);
}

.corner-hud-grid {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.corner-hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--iron-grey);
}

.corner-hud-row span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.corner-hud-row span i {
  color: var(--cerulean);
  font-size: 11px;
  width: 14px;
  text-align: center;
}

.corner-hud-val {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--deep-space-blue);
}

.corner-hud-status {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px dashed rgba(206, 212, 218, 0.7);
  font-size: 11px;
  font-weight: 700;
  color: var(--sea-green);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Info & Education Column */
.info-column {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
  padding-right: 4px;
}

.info-column::-webkit-scrollbar {
  width: 6px;
}

.info-column::-webkit-scrollbar-thumb {
  background: #c3d7e6;
  border-radius: 4px;
}

.metric-bar-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric-header {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.metric-track {
  height: 9px;
  background: #dbe8f2;
  border-radius: 10px;
  overflow: hidden;
}

.metric-progress {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--c-cerulean), var(--c-sage));
  transition: width 0.4s ease, background 0.4s ease;
}

.edu-card {
  background: #ffffff;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 14px;
  line-height: 1.6;
  box-shadow: 0 4px 14px rgba(5, 102, 141, 0.04);
}

.edu-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--c-baltic);
  margin-bottom: 8px;
}

.edu-card p {
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.edu-card ul {
  padding-left: 20px;
  color: var(--text-muted);
}

.edu-card li {
  margin-bottom: 6px;
}

.edu-card strong {
  color: var(--text-main);
}

.ethics-principle {
  border-left: 4px solid var(--c-sage);
  padding-left: 12px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-main);
  background: #f3f8ee;
  padding: 10px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-weight: 500;
}

/* History / Comparison Drawer */
.history-item {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  padding: 8px 10px;
  background: #f4f8fc;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  color: var(--c-baltic);
  font-weight: 600;
  animation: fadeInSlide 0.35s ease-out;
}

/* 8. Reglarea Plantei Button (Green background, Light green hover) */
.btn-reglare {
  background: var(--sea-green) !important;
  color: #ffffff !important;
  border: none !important;
  font-weight: 800 !important;
  font-size: 14px !important;
  box-shadow: 0 4px 14px rgba(43, 147, 72, 0.35) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

.btn-reglare:hover {
  background: var(--bright-fern) !important;
  box-shadow: 0 6px 18px rgba(85, 166, 48, 0.45) !important;
  transform: translateY(-2px);
}

.btn-reglare:active {
  transform: translateY(0);
}

/* Environmental Factor Spectrum Bars (Moisture, Temp, Light, Nutrients) */
.spectrum-wrapper,
.temp-spectrum-wrapper {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.spectrum-track,
.temp-spectrum-track {
  position: relative;
  width: 100%;
  height: 12px;
  border-radius: 8px;
  box-shadow: inset 0 1px 3px rgba(1, 42, 74, 0.2);
  overflow: visible;
}

/* Moisture Spectrum Gradient (Arid Tan -> Verdant Green -> Hydrated Cerulean -> Saturated Deep Blue) */
.spectrum-moist-track {
  background: linear-gradient(90deg,
      #caf0f8 0%,
      #ade8f4 18%,
      #48cae4 35%,
      #00b4d8 55%,
      #023e8a 78%,
      #03045e 100%);
}

/* Temperature Spectrum Gradient (Chilly Blue -> Cerulean -> Comfort Green -> Warm Lime -> Sun Yellow -> Scorching Red) */
.spectrum-temp-track,
.temp-spectrum-track {
  background: linear-gradient(90deg,
      #2a6f97 0%,
      #61a5c2 22%,
      #2b9348 45%,
      #80b918 65%,
      #eeef20 82%,
      #e63946 100%);
}

/* PAR Light Spectrum Gradient (Deep Shade -> Diffuse Blue -> Photosynthetic Green -> Golden Sunlight -> Intense Amber -> Solar Scorching) */
.spectrum-light-track {
  background: linear-gradient(90deg,
      #4e148c 0%,
      #858ae3 22%,
      #93caf6 45%,
      #fff2b2 65%,
      #ffdd32 82%,
      #ffd400 100%);
}

/* Soil EC Nutrients Spectrum Gradient (Diluted Leached -> Balanced Mineral Green -> Active Nutrient Surge -> Saline Stress) */
.spectrum-ec-track {
  background: linear-gradient(90deg,
      #b7efc5 0%,
      #6ede8a 20%,
      #2dc653 45%,
      #80b918 65%,
      #208b3a 80%,
      #155d27 90%,
      #10451d 100%);
}

.spectrum-zone,
.temp-spectrum-zone {
  position: absolute;
  top: -2px;
  bottom: -2px;
  left: 40%;
  width: 35%;
  border-radius: 6px;
  border: 2px solid #ffffff;
  box-shadow: 0 0 10px rgba(85, 166, 48, 0.8), inset 0 0 6px rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.22);
  transition: left 0.35s ease, width 0.35s ease;
  pointer-events: none;
}

.spectrum-cursor,
.temp-spectrum-cursor {
  position: absolute;
  top: -4px;
  width: 6px;
  height: 20px;
  background: #ffffff;
  border: 1.5px solid var(--deep-space-blue);
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(1, 42, 74, 0.4);
  transform: translateX(-50%);
  transition: left 0.15s ease;
  pointer-events: none;
  z-index: 2;
}

.spectrum-labels,
.temp-spectrum-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

.spectrum-opt-badge {
  color: var(--sea-green);
  font-weight: 800;
  background: rgba(43, 147, 72, 0.12);
  padding: 1px 8px;
  border-radius: 6px;
}

/* 7. Educational Science Action Buttons & Floating Overlay */
.btn-edu-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border-radius: 20px;
  background: #ffffff;
  border: 1.5px solid var(--pale-slate);
  cursor: pointer;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--yale-blue);
  box-shadow: 0 2px 6px rgba(1, 42, 74, 0.04);
  user-select: none;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.btn-edu-action:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 4px 10px rgba(1, 42, 74, 0.08);
}

.btn-edu-action.btn-respiration:hover {
  border-color: #0096c7;
  color: #0077b6;
}

.btn-edu-action.btn-respiration.active {
  background: linear-gradient(135deg, #023e8a, #0096c7);
  color: #ffffff;
  border-color: #0077b6;
  box-shadow: 0 4px 14px rgba(0, 150, 199, 0.35);
}

.btn-edu-action.btn-respiration i {
  color: #0096c7;
  transition: color 0.2s ease;
}

.btn-edu-action.btn-respiration.active i {
  color: #ffffff;
}

.btn-edu-action.btn-nutrition:hover {
  border-color: var(--bright-fern);
  color: #2b9348;
}

.btn-edu-action.btn-nutrition.active {
  background: linear-gradient(135deg, #2b9348, #55a630);
  color: #ffffff;
  border-color: #38b000;
  box-shadow: 0 4px 14px rgba(85, 166, 48, 0.35);
}

.btn-edu-action.btn-nutrition i {
  color: #e85d04;
  transition: color 0.2s ease;
}

.btn-edu-action.btn-nutrition.active i {
  color: #ffe600;
  text-shadow: 0 0 6px rgba(255, 230, 0, 0.7);
}

.btn-micro-badge {
  font-size: 10px;
  font-weight: 800;
  padding: 1.5px 6px;
  border-radius: 10px;
  background: rgba(1, 42, 74, 0.08);
  margin-left: 4px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--yale-blue);
  letter-spacing: 0.03em;
}

.btn-edu-action.btn-respiration.active .btn-micro-badge {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.btn-edu-action.btn-nutrition.active .btn-micro-badge {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* Floating Kid-Friendly Educational Overlay inside Viewport */
.viewport-edu-overlay {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 390px;
  max-width: calc(100% - 36px);
  z-index: 30;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border: 2px solid rgba(66, 122, 161, 0.28);
  border-radius: 18px;
  box-shadow: 0 16px 36px rgba(1, 42, 74, 0.18), 0 2px 8px rgba(1, 42, 74, 0.08);
  padding: 18px;
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

.viewport-edu-overlay.hidden {
  opacity: 0;
  transform: translateY(-12px) scale(0.97);
  pointer-events: none;
}

.edu-overlay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.edu-overlay-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(66, 122, 161, 0.12);
  color: var(--yale-blue);
  letter-spacing: 0.02em;
}

.edu-overlay-badge.theme-respiration {
  background: rgba(0, 150, 199, 0.15);
  color: #0077b6;
}

.edu-overlay-badge.theme-nutrition {
  background: rgba(85, 166, 48, 0.15);
  color: #2b9348;
}

.btn-close-edu {
  background: transparent;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cadet-gray);
  font-size: 14px;
  transition: all 0.2s ease;
}

.btn-close-edu:hover {
  background: var(--platinum);
  color: var(--yale-blue);
  transform: rotate(90deg);
}

.edu-overlay-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--prussian-blue);
  margin-bottom: 6px;
  line-height: 1.3;
}

.edu-overlay-lead {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--yale-blue);
  margin-bottom: 12px;
}

.edu-overlay-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.edu-step-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(245, 247, 250, 0.90);
  border: 1px solid var(--pale-slate);
  border-radius: 12px;
  padding: 9px 12px;
}

.edu-step-icon-wrap {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}

.edu-step-icon-wrap.icon-co2 {
  background: rgba(0, 150, 199, 0.15);
  color: #0077b6;
}

.edu-step-icon-wrap.icon-o2 {
  background: rgba(2, 62, 138, 0.12);
  color: #023e8a;
}

.edu-step-icon-wrap.icon-sun {
  background: rgba(255, 170, 0, 0.18);
  color: #d97706;
}

.edu-step-icon-wrap.icon-leaf {
  background: rgba(85, 166, 48, 0.15);
  color: #2b9348;
}

.edu-step-body {
  flex: 1;
}

.edu-step-heading {
  font-size: 12px;
  font-weight: 800;
  color: var(--prussian-blue);
  margin-bottom: 2px;
}

.edu-step-text {
  font-size: 11.5px;
  color: var(--yale-blue);
  line-height: 1.4;
  margin: 0;
}

.edu-overlay-tip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 243, 205, 0.6);
  border-left: 3px solid #ffb703;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  color: #92400e;
}

/* 1. Compare Two Conditions Feature Card */
.experiment-compare-card {
  background: #ffffff;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 4px 14px rgba(1, 42, 74, 0.05);
  margin-top: 4px;
}

.compare-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.compare-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--yale-blue);
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: none;
}

.compare-title i {
  color: var(--bright-fern);
}

.compare-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.compare-btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn-sm {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 700;
}

.btn.secondary {
  background: rgba(137, 194, 217, 0.2);
  color: var(--yale-blue-2);
  border-color: var(--steel-blue);
}

.btn.secondary:hover {
  background: rgba(137, 194, 217, 0.35);
  border-color: var(--cerulean);
}

.compare-results-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bright-snow);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--pale-slate);
  animation: fadeInSlide 0.3s ease-out;
}

.hidden {
  display: none !important;
}

.compare-results-box.hidden {
  display: none;
}

.compare-mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.compare-mini-card {
  background: #ffffff;
  border: 1px solid var(--pale-slate);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.compare-tag {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--slate-grey);
  letter-spacing: 0.04em;
}

.compare-tag.active {
  color: var(--cerulean);
}

.compare-metrics {
  font-size: 11px;
  color: var(--deep-space-blue);
  line-height: 1.45;
  font-weight: 600;
}

.compare-diff-verdict {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--deep-space-blue);
  background: #ffffff;
  padding: 6px 8px;
  border-radius: 6px;
  border-left: 3px solid var(--bright-fern);
}

.compare-steps {
  padding-left: 18px;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.compare-steps li {
  margin-bottom: 3px;
}

/* Smooth Interactive Keyframe Animations */
@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel {
  animation: fadeInSlide 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  transition: box-shadow 0.3s ease;
}

.panel:hover {
  box-shadow: 0 12px 34px rgba(5, 102, 141, 0.08);
}

.edu-card {
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.edu-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-cerulean);
  box-shadow: 0 6px 18px rgba(5, 102, 141, 0.08);
}

.telemetry-tile {
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
}

.telemetry-tile:hover {
  transform: translateY(-3px);
  border-color: var(--c-cerulean);
  box-shadow: 0 6px 20px rgba(5, 102, 141, 0.12);
}

.telemetry-name i {
  color: var(--c-cerulean);
  margin-right: 5px;
}

.ethical-banner {
  transition: all 0.4s ease;
}

/* ==========================================================================
   Navigation Bar & Icon-Only Button
   ========================================================================== */

.app-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(235, 242, 250, 0.7);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid rgba(169, 214, 229, 0.5);
  box-shadow: inset 0 1px 3px rgba(1, 42, 74, 0.04);
}

.nav-tab-btn {
  background: transparent;
  border: none;
  padding: 8px 18px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--yale-blue);
  border-radius: 24px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.22s ease;
}

.nav-tab-btn:hover {
  color: var(--deep-space-blue);
  background: rgba(255, 255, 255, 0.65);
}

.nav-tab-btn.active {
  background: #ffffff;
  color: var(--deep-space-blue);
  box-shadow: 0 2px 10px rgba(1, 42, 74, 0.12);
}

.viewport-btn-group .btn.btn-icon-only {
  width: 38px;
  height: 38px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 15px;
}

/* ==========================================================================
   Pagina de Întâlnire (Welcome & Discovery View)
   ========================================================================== */

.welcome-view {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 28px 80px;
  animation: fadeInSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.welcome-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* Hero Banner Card */
.welcome-hero-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(235, 242, 250, 0.88));
  border: 1px solid rgba(169, 214, 229, 0.6);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  box-shadow: 0 16px 40px rgba(1, 42, 74, 0.08);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.welcome-hero-card::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(165, 214, 167, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

.welcome-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(85, 166, 48, 0.12);
  color: var(--kelly-green);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  border: 1px solid rgba(85, 166, 48, 0.25);
}

.welcome-hero-title {
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 800;
  color: var(--deep-space-blue);
  line-height: 1.18;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.welcome-hero-subtitle {
  font-size: clamp(15px, 1.3vw, 18px);
  color: var(--slate-gray);
  max-width: 820px;
  line-height: 1.6;
  margin-bottom: 28px;
}

.welcome-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.btn-hero-primary {
  background: linear-gradient(135deg, var(--yale-blue), var(--cerulean));
  color: #ffffff;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 28px;
  box-shadow: 0 8px 20px rgba(1, 42, 74, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-hero-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(1, 42, 74, 0.32);
}

.btn-hero-secondary {
  background: #ffffff;
  color: var(--yale-blue);
  border: 1px solid var(--pale-slate);
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 28px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-hero-secondary:hover {
  background: var(--platinum);
  border-color: var(--cerulean);
  color: var(--deep-space-blue);
  transform: translateY(-2px);
}

.welcome-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid rgba(222, 226, 230, 0.6);
}

.welcome-stat-pill {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid rgba(222, 226, 230, 0.6);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 6px rgba(1, 42, 74, 0.04);
}

.welcome-stat-pill i {
  font-size: 22px;
  color: var(--cerulean);
}

.welcome-stat-pill strong {
  display: block;
  font-size: 14px;
  color: var(--deep-space-blue);
}

.welcome-stat-pill span {
  font-size: 12px;
  color: var(--slate-gray);
}

/* Sections Header */
.welcome-section {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.welcome-section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.welcome-section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--yale-blue);
  background: rgba(169, 214, 229, 0.25);
  padding: 4px 12px;
  border-radius: 16px;
  margin-bottom: 8px;
}

.welcome-section-header h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--deep-space-blue);
  margin-bottom: 8px;
}

.welcome-section-header p {
  font-size: 15px;
  color: var(--slate-gray);
}

/* Species Grid */
.welcome-species-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.welcome-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid rgba(222, 226, 230, 0.7);
  box-shadow: 0 8px 24px rgba(1, 42, 74, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.welcome-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(1, 42, 74, 0.10);
}

.welcome-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #ffffff;
}

.card-cactus .welcome-card-icon { background: linear-gradient(135deg, #2d6a4f, #52b788); }
.card-rosie .welcome-card-icon { background: linear-gradient(135deg, #d90429, #ef233c); }
.card-salata .welcome-card-icon { background: linear-gradient(135deg, #38b000, #70e000); }
.card-lavanda .welcome-card-icon { background: linear-gradient(135deg, #5a189a, #9d4edd); }

.welcome-card-header h4 {
  font-size: 19px;
  font-weight: 800;
  color: var(--deep-space-blue);
  margin-bottom: 2px;
}

.species-latin {
  font-size: 12px;
  font-style: italic;
  color: var(--slate-gray);
}

.welcome-card-desc {
  font-size: 13.5px;
  color: var(--slate-gray);
  line-height: 1.55;
  flex-grow: 1;
}

.welcome-card-feature {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--bg-primary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--deep-space-blue);
  line-height: 1.45;
}

.welcome-card-feature i {
  color: #fca311;
  font-size: 14px;
  margin-top: 2px;
}

.btn-species-select {
  background: var(--bg-primary);
  border: 1px solid var(--pale-slate);
  color: var(--yale-blue);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.22s ease;
}

.btn-species-select:hover {
  background: var(--yale-blue);
  color: #ffffff;
  border-color: var(--yale-blue);
  transform: translateY(-1px);
}

/* Sensors Grid */
.welcome-sensors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.welcome-sensor-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid rgba(222, 226, 230, 0.7);
  box-shadow: 0 4px 14px rgba(1, 42, 74, 0.04);
}

.sensor-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.sensor-icon-badge {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 16px;
}

.sensor-icon-badge.moist { background: var(--c-cerulean); }
.sensor-icon-badge.temp { background: #e76f51; }
.sensor-icon-badge.light { background: #e9c46a; color: #1f2937; }
.sensor-icon-badge.ec { background: var(--c-lime); }

.sensor-card-top h5 {
  font-size: 16px;
  font-weight: 700;
  color: var(--deep-space-blue);
}

.welcome-sensor-card p {
  font-size: 13px;
  color: var(--slate-gray);
  line-height: 1.55;
}

/* Guide Steps */
.welcome-guide-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 38px 40px;
  border: 1px solid rgba(169, 214, 229, 0.6);
  box-shadow: 0 10px 30px rgba(1, 42, 74, 0.06);
}

.welcome-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 12px 0 28px;
}

.welcome-step-item {
  position: relative;
  padding: 14px;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--yale-blue), var(--cerulean));
  color: #ffffff;
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  box-shadow: 0 4px 10px rgba(1, 42, 74, 0.2);
}

.welcome-step-item h4 {
  font-size: 17px;
  font-weight: 800;
  color: var(--deep-space-blue);
  margin-bottom: 6px;
}

.welcome-step-item p {
  font-size: 13.5px;
  color: var(--slate-gray);
  line-height: 1.55;
}

.welcome-cta-final {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(222, 226, 230, 0.6);
}

.welcome-cta-final h4 {
  font-size: 20px;
  font-weight: 800;
  color: var(--deep-space-blue);
  margin-bottom: 14px;
}

/* Kid Explorers Research Theme */
.kid-hero {
  border: 2px solid rgba(85, 166, 48, 0.35);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(240, 250, 244, 0.95));
}

.kid-badge {
  background: rgba(85, 166, 48, 0.18) !important;
  color: #1b5e20 !important;
  border-color: rgba(85, 166, 48, 0.45) !important;
  font-size: 14px !important;
  padding: 8px 18px !important;
}

.kid-btn-main {
  background: linear-gradient(135deg, #1e7040, #2d9356) !important;
  box-shadow: 0 8px 24px rgba(45, 147, 86, 0.35) !important;
  font-size: 16px !important;
  padding: 16px 32px !important;
}

.kid-btn-main:hover {
  transform: translateY(-2px) scale(1.03) !important;
  box-shadow: 0 12px 28px rgba(45, 147, 86, 0.45) !important;
}

.kid-mission-card {
  border-left: 4px solid var(--cerulean);
  transition: all 0.28s ease;
}

.kid-mission-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(1, 42, 74, 0.09);
}

/* ==========================================================================
   8. SPEECH-TO-SPEECH REAL-TIME VOICE ASSISTANT (GEMMA 2B)
   ========================================================================== */

/* Glowing Voice Button in Header */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-voice-glow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #023e8a, #0096c7);
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  border-radius: 30px;
  padding: 6px 14px 6px 8px;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 150, 199, 0.38);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.btn-voice-glow:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 24px rgba(0, 150, 199, 0.55);
  border-color: rgba(255, 255, 255, 0.7);
}

.orb-pulse-ring {
  position: absolute;
  top: 50%;
  left: 20px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(255, 255, 255, 0.6);
  animation: pulse-ring-anim 2s infinite ease-out;
  pointer-events: none;
}

@keyframes pulse-ring-anim {
  0% {
    width: 24px;
    height: 24px;
    opacity: 0.9;
  }
  100% {
    width: 50px;
    height: 50px;
    opacity: 0;
  }
}

.orb-core {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #55a630, #aacc00);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 13px;
  box-shadow: 0 0 10px rgba(170, 204, 0, 0.6);
  z-index: 2;
}

.voice-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.15;
}

.voice-btn-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.voice-btn-sub {
  font-size: 9.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

/* Voice AI Fullscreen Modal (Siri / GPT Voice Style) */
.voice-ai-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.voice-ai-modal.hidden {
  opacity: 0;
  pointer-events: none;
}

.voice-ai-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(1, 26, 47, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.voice-ai-window {
  position: relative;
  width: 540px;
  max-width: 100%;
  max-height: 90vh;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.98), rgba(240, 246, 252, 0.95));
  border: 2px solid rgba(66, 122, 161, 0.3);
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(1, 42, 74, 0.35);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modal-pop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-pop {
  from {
    transform: scale(0.92) translateY(20px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.voice-ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--pale-slate);
  background: rgba(255, 255, 255, 0.7);
}

.voice-ai-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.voice-ai-avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #023e8a, #0096c7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 17px;
  box-shadow: 0 4px 12px rgba(0, 150, 199, 0.3);
}

.voice-ai-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--prussian-blue);
  margin: 0;
}

.voice-ai-status {
  font-size: 11px;
  font-weight: 600;
  color: var(--cerulean);
}

.voice-ai-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-voice-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 16px;
  border: 1px solid var(--pale-slate);
  background: #ffffff;
  color: var(--yale-blue);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-voice-pill.active {
  background: rgba(43, 147, 72, 0.12);
  color: #1b5e20;
  border-color: #55a630;
}

.btn-close-modal {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--platinum);
  color: var(--cadet-gray);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all 0.2s ease;
}

.btn-close-modal:hover {
  background: rgba(220, 53, 69, 0.12);
  color: #dc3545;
  transform: rotate(90deg);
}

/* Centerpiece: Glowing Neural Orb Stage */
.voice-orb-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 14px;
  position: relative;
}

.neural-orb {
  position: relative;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  cursor: pointer;
}

.orb-layer {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.orb-glow {
  background: radial-gradient(circle, rgba(0, 180, 216, 0.85) 0%, rgba(85, 166, 48, 0.6) 45%, rgba(2, 62, 138, 0) 70%);
  filter: blur(14px);
  animation: orb-breathe 3s infinite ease-in-out;
}

.orb-particles {
  border: 2px dashed rgba(255, 255, 255, 0.5);
  animation: orb-spin-slow 20s infinite linear;
}

.orb-core-glow {
  inset: 14px;
  background: linear-gradient(135deg, #0077b6, #55a630, #ffe600);
  background-size: 200% 200%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 32px;
  box-shadow: 0 0 24px rgba(0, 180, 216, 0.7);
  animation: gradient-shift 6s infinite ease;
}

@keyframes orb-breathe {
  0%, 100% {
    transform: scale(0.95);
    opacity: 0.75;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes orb-spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Orb States: Listening, Thinking, Speaking */
.neural-orb.state-listening .orb-glow {
  background: radial-gradient(circle, rgba(0, 180, 216, 0.95) 0%, rgba(255, 215, 0, 0.8) 50%, rgba(2, 62, 138, 0) 75%);
  animation: orb-listen-pulse 1s infinite ease-in-out;
}

.neural-orb.state-listening .orb-core-glow {
  background: linear-gradient(135deg, #0096c7, #ffe600);
  box-shadow: 0 0 35px rgba(255, 230, 0, 0.85);
}

.neural-orb.state-thinking .orb-glow {
  background: radial-gradient(circle, rgba(165, 220, 0, 0.95) 0%, rgba(0, 150, 199, 0.8) 50%, rgba(2, 62, 138, 0) 75%);
  animation: orb-spin-slow 2s infinite linear;
}

.neural-orb.state-speaking .orb-glow {
  background: radial-gradient(circle, rgba(43, 147, 72, 0.95) 0%, rgba(0, 180, 216, 0.85) 50%, rgba(255, 230, 0, 0.5) 70%);
  animation: orb-speak-pulse 0.75s infinite alternate ease-in-out;
}

@keyframes orb-listen-pulse {
  0% { transform: scale(1.0); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1.0); }
}

@keyframes orb-speak-pulse {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.22); }
}

/* Audio Waveform Visualizer */
.voice-waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 28px;
  margin-top: 14px;
}

.wave-bar {
  width: 4px;
  height: 6px;
  border-radius: 4px;
  background: var(--cerulean);
  transition: height 0.15s ease, background-color 0.2s ease;
}

.voice-waveform.is-active .wave-bar {
  background: linear-gradient(to top, #0077b6, #55a630);
  animation: wave-bounce 0.8s infinite ease-in-out alternate;
}

.voice-waveform.is-active .wave-bar:nth-child(1) { animation-delay: 0.05s; }
.voice-waveform.is-active .wave-bar:nth-child(2) { animation-delay: 0.15s; }
.voice-waveform.is-active .wave-bar:nth-child(3) { animation-delay: 0.25s; }
.voice-waveform.is-active .wave-bar:nth-child(4) { animation-delay: 0.35s; }
.voice-waveform.is-active .wave-bar:nth-child(5) { animation-delay: 0.45s; }
.voice-waveform.is-active .wave-bar:nth-child(6) { animation-delay: 0.20s; }
.voice-waveform.is-active .wave-bar:nth-child(7) { animation-delay: 0.10s; }
.voice-waveform.is-active .wave-bar:nth-child(8) { animation-delay: 0.30s; }

@keyframes wave-bounce {
  0% { height: 6px; }
  100% { height: 26px; }
}

.voice-state-caption {
  font-size: 13px;
  font-weight: 700;
  color: var(--yale-blue);
  margin-top: 8px;
  text-align: center;
  min-height: 20px;
}

/* Dialogue Container */
.voice-dialogue-container {
  flex: 1;
  max-height: 180px;
  overflow-y: auto;
  padding: 10px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.voice-chat-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  max-width: 90%;
  font-size: 13px;
  line-height: 1.45;
  animation: bubble-in 0.25s ease;
}

@keyframes bubble-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.voice-chat-bubble.assistant {
  align-self: flex-start;
  background: rgba(240, 248, 255, 0.95);
  border: 1.5px solid rgba(66, 122, 161, 0.25);
  color: var(--prussian-blue);
}

.voice-chat-bubble.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #0077b6, #0096c7);
  color: #ffffff;
}

.bubble-sender {
  font-size: 11px;
  font-weight: 800;
  margin-bottom: 3px;
  color: var(--cerulean);
  display: flex;
  align-items: center;
  gap: 5px;
}

.voice-chat-bubble.user .bubble-sender {
  color: rgba(255, 255, 255, 0.85);
}

.bubble-text {
  margin: 0;
}

/* Quick Prompts Chips */
.voice-quick-prompts {
  padding: 10px 20px 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: rgba(245, 247, 250, 0.6);
  border-top: 1px solid var(--pale-slate);
}

.quick-prompts-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--cadet-gray);
  display: flex;
  align-items: center;
  gap: 5px;
}

.quick-prompts-scroll {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.btn-voice-chip {
  flex: 0 0 auto;
  padding: 6px 11px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid var(--pale-slate);
  color: var(--yale-blue);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.btn-voice-chip:hover {
  background: var(--platinum);
  border-color: var(--cerulean);
  color: #0077b6;
  transform: translateY(-1px);
}

/* Push to Talk Controls */
.voice-ai-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 20px 20px;
  gap: 6px;
  background: #ffffff;
}

.btn-mic-main {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #023e8a, #0096c7);
  color: #ffffff;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 150, 199, 0.45);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-mic-main:hover {
  transform: scale(1.08);
  box-shadow: 0 10px 28px rgba(0, 150, 199, 0.6);
}

.btn-mic-main.is-recording {
  background: linear-gradient(135deg, #d90429, #ef233c);
  box-shadow: 0 8px 26px rgba(239, 35, 60, 0.55);
  animation: mic-record-pulse 1.2s infinite ease-in-out;
}

@keyframes mic-record-pulse {
  0%, 100% { transform: scale(1.0); }
  50% { transform: scale(1.12); }
}

.mic-hint-text {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--cadet-gray);
}

/* Mobile Responsiveness for Voice Modal */
@media (max-width: 600px) {
  .btn-voice-glow .voice-btn-sub {
    display: none;
  }
  
  .btn-voice-glow {
    padding: 6px 10px 6px 6px;
  }

  .voice-ai-window {
    width: 100%;
    max-height: 94vh;
    border-radius: 20px;
  }

  .neural-orb {
    width: 90px;
    height: 90px;
  }

  .voice-dialogue-container {
    max-height: 140px;
  }
}

/* ========================================================
   9. TOP-LEFT PARTICLE LEGEND ON PLANT 3D CARD
   ======================================================== */
.viewport-particle-legend {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 30;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  box-shadow: 0 8px 24px rgba(1, 42, 74, 0.12);
  max-width: 280px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: legendFadeIn 0.35s ease-out;
}

.viewport-particle-legend.hidden {
  display: none !important;
}

.viewport-particle-legend:hover {
  box-shadow: 0 10px 30px rgba(1, 42, 74, 0.18);
  border-color: var(--c-cerulean);
}

.particle-legend-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(1, 42, 74, 0.08);
}

.particle-legend-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--deep-space-blue);
}

.particle-legend-badge {
  font-size: 10.5px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 12px;
  letter-spacing: 0.02em;
}

.particle-legend-badge.theme-nutrition {
  background: rgba(217, 119, 6, 0.15);
  color: #b45309;
}

.particle-legend-badge.theme-respiration {
  background: rgba(0, 150, 199, 0.15);
  color: #0077b6;
}

.particle-legend-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.particle-legend-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.particle-dot-wrap {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Solar Ray: White-Yellow Glowing Dot */
.dot-solar-ray {
  background: radial-gradient(circle, #ffffff 30%, #ffea79 70%, #f59e0b 100%);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.75), 0 0 4px rgba(255, 255, 255, 0.9);
  border: 1.5px solid #ffffff;
  animation: solarPulse 2s infinite ease-in-out;
}

/* Chlorophyll: Vibrant Green Glowing Dot */
.dot-chlorophyll {
  background: radial-gradient(circle, #ffffff 20%, #70e000 60%, #38b000 100%);
  box-shadow: 0 0 10px rgba(56, 176, 0, 0.75), 0 0 4px rgba(255, 255, 255, 0.9);
  border: 1.5px solid #ffffff;
  animation: chloroPulse 2s infinite ease-in-out 0.5s;
}

/* CO2: Soft Cyan/Blue Gas Bubble */
.dot-co2 {
  background: radial-gradient(circle, #ffffff 20%, #90e0ef 65%, #0077b6 100%);
  box-shadow: 0 0 10px rgba(0, 119, 182, 0.65), 0 0 4px rgba(255, 255, 255, 0.9);
  border: 1.5px solid #ffffff;
  animation: co2Pulse 2s infinite ease-in-out;
}

/* Oxygen O2: Brilliant Cyan / Azure Spark */
.dot-o2 {
  background: radial-gradient(circle, #ffffff 30%, #48cae4 70%, #0096c7 100%);
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.8), 0 0 4px rgba(255, 255, 255, 0.9);
  border: 1.5px solid #ffffff;
  animation: o2Pulse 1.8s infinite ease-in-out 0.4s;
}

@keyframes solarPulse {
  0%, 100% { transform: scale(1.0); box-shadow: 0 0 8px rgba(245, 158, 11, 0.6); }
  50% { transform: scale(1.18); box-shadow: 0 0 14px rgba(245, 158, 11, 0.95); }
}

@keyframes chloroPulse {
  0%, 100% { transform: scale(1.0); box-shadow: 0 0 8px rgba(56, 176, 0, 0.6); }
  50% { transform: scale(1.18); box-shadow: 0 0 14px rgba(56, 176, 0, 0.95); }
}

@keyframes co2Pulse {
  0%, 100% { transform: scale(1.0); box-shadow: 0 0 8px rgba(0, 119, 182, 0.6); }
  50% { transform: scale(1.15); box-shadow: 0 0 13px rgba(0, 119, 182, 0.9); }
}

@keyframes o2Pulse {
  0%, 100% { transform: scale(1.0); box-shadow: 0 0 8px rgba(0, 180, 216, 0.6); }
  50% { transform: scale(1.20); box-shadow: 0 0 15px rgba(0, 180, 216, 0.95); }
}

.particle-desc-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.particle-label {
  font-size: 12px;
  font-weight: 800;
  color: var(--deep-space-blue);
  line-height: 1.3;
}

.particle-text {
  font-size: 11px;
  color: #334155;
  line-height: 1.35;
  margin: 0;
}

@keyframes legendFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 600px) {
  .viewport-particle-legend {
    top: 10px;
    left: 10px;
    max-width: 190px;
    padding: 7px 10px;
    font-size: 10px;
  }
  .particle-legend-title {
    font-size: 10px;
  }
  .particle-label {
    font-size: 11px;
  }
  .particle-text {
    font-size: 10px;
  }
  .particle-dot-wrap {
    width: 18px;
    height: 18px;
  }
}