/* ============================================
   KUSH — Terpene Matching Engine
   Deep space indigo + mystic purple + teal glow
   ============================================ */

:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* KUSH Palette */
  --color-bg:           #080610;
  --color-surface:      #0e0a1e;
  --color-surface-2:    #140f28;
  --color-surface-3:    #1a1332;
  --color-border:       rgba(155, 107, 223, 0.18);
  --color-border-hover: rgba(155, 107, 223, 0.35);
  --color-text:         #e8e4f0;
  --color-text-muted:   #9088a8;
  --color-text-faint:   #5e5578;
  --color-accent:       #4eeadf;
  --color-accent-dim:   rgba(78, 234, 223, 0.12);
  --color-primary:      #9b6bdf;
  --color-primary-dim:  rgba(155, 107, 223, 0.12);
  --color-gold:         #d4a843;
  --color-danger:       #e84057;
  --color-warning:      #f0a030;
  --color-safe:         #4eeadf;

  /* Radii */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-xl:   20px;
  --radius-full: 9999px;

  /* Fonts */
  --font-pixel:   'Press Start 2P', monospace;
  --font-display: 'Zodiak', Georgia, serif;
  --font-body:    'Satoshi', 'Helvetica Neue', sans-serif;

  /* Motion */
  --ease-out:        cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 180ms var(--ease-out);
  --transition-med:  350ms var(--ease-out);
  --transition-slow: 600ms var(--ease-out);
}

/* ============================================
   GLOBAL
   ============================================ */
body {
  overflow: hidden;
  background: var(--color-bg);
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ============================================
   SCREEN SYSTEM
   ============================================ */
.screen {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}
.screen.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.screen-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0;
}

.screen-inner {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) calc(100px + var(--space-8));
  width: 100%;
}

.screen-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.screen-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.2;
}

.screen-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}

.screen-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-back {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-dim);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.btn-back:hover {
  background: rgba(155, 107, 223, 0.25);
  border-color: var(--color-primary);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-pixel);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-bg);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}
.btn-glow {
  box-shadow: 0 0 24px rgba(78, 234, 223, 0.3), 0 0 60px rgba(78, 234, 223, 0.08);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(78, 234, 223, 0.5), 0 0 80px rgba(78, 234, 223, 0.12);
  background: #6ff0e8;
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-full {
  width: 100%;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(78, 234, 223, 0.2);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.btn-secondary:hover {
  background: rgba(78, 234, 223, 0.18);
  border-color: var(--color-accent);
}

.btn-village {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-pixel);
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
  width: 100%;
  margin-top: var(--space-4);
}
.btn-village:hover {
  background: rgba(155, 107, 223, 0.22);
  color: var(--color-text);
}

/* ============================================
   SCREEN 1: ENTRANCE
   ============================================ */
.screen--entrance {
  align-items: center;
  justify-content: flex-end;
}

.entrance-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.entrance-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.8);
}
.entrance-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--color-bg) 0%,
    rgba(8,6,16,0.85) 25%,
    rgba(8,6,16,0.4) 55%,
    rgba(8,6,16,0.3) 100%
  );
}

.entrance-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-8) var(--space-5) calc(100px + var(--space-8));
  max-width: 520px;
  margin: 0 auto;
}

.kush-glow {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78, 234, 223, 0.15) 0%, transparent 70%);
  margin: 0 auto var(--space-4);
  animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

.entrance-title {
  font-family: var(--font-pixel);
  font-size: clamp(2.5rem, 1rem + 6vw, 4.5rem);
  color: var(--color-accent);
  text-shadow:
    0 0 40px rgba(78, 234, 223, 0.4),
    0 0 80px rgba(78, 234, 223, 0.15),
    0 2px 0 rgba(0,0,0,0.3);
  letter-spacing: 8px;
  margin-bottom: var(--space-1);
  animation: titleGlow 4s ease-in-out infinite;
}
@keyframes titleGlow {
  0%, 100% { text-shadow: 0 0 40px rgba(78,234,223,0.4), 0 0 80px rgba(78,234,223,0.15); }
  50% { text-shadow: 0 0 60px rgba(78,234,223,0.6), 0 0 120px rgba(78,234,223,0.25); }
}

.entrance-subtitle {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-6);
  letter-spacing: 2px;
}

.entrance-dialogue {
  position: relative;
  max-width: 460px;
  margin: 0 auto var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: rgba(14, 10, 30, 0.88);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  min-height: 80px;
  display: flex;
  align-items: center;
}
.dialogue-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  text-align: left;
}
.dialogue-cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--color-accent);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
  flex-shrink: 0;
}
.dialogue-cursor.hidden { display: none; }
@keyframes blink {
  50% { opacity: 0; }
}

.entrance-status {
  margin-bottom: var(--space-4);
  font-family: var(--font-pixel);
  font-size: 9px;
  color: var(--color-primary);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ============================================
   SCREEN 2: BIOMARKER STATE
   ============================================ */
.bio-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-dim);
  border: 1px solid rgba(155, 107, 223, 0.15);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}
.bio-disclaimer svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
  width: 16px;
  height: 16px;
}
.bio-disclaimer span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.bio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.bio-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.bio-card.flagged {
  border-color: rgba(232, 64, 87, 0.4);
  background: rgba(232, 64, 87, 0.05);
}
.bio-card.warn {
  border-color: rgba(240, 160, 48, 0.4);
  background: rgba(240, 160, 48, 0.05);
}
.bio-card.ok {
  border-color: rgba(78, 234, 223, 0.2);
}

.bio-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.bio-dot.red    { background: var(--color-danger);  box-shadow: 0 0 8px rgba(232, 64, 87, 0.5); }
.bio-dot.amber  { background: var(--color-warning); box-shadow: 0 0 8px rgba(240, 160, 48, 0.5); }
.bio-dot.green  { background: var(--color-safe);    box-shadow: 0 0 8px rgba(78, 234, 223, 0.5); }
.bio-dot.gray   { background: var(--color-text-faint); }

.bio-info {
  min-width: 0;
}
.bio-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.3;
}
.bio-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.3;
}

/* ============================================
   SCREEN 3: TERP MATCH RESULT
   ============================================ */

/* NPC Message */
.npc-message {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
  align-items: flex-start;
}
.npc-avatar {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}
.npc-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.npc-avatar-ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  pointer-events: none;
  animation: ringPulse 3s ease-in-out infinite;
}
@keyframes ringPulse {
  0%, 100% { border-color: var(--color-primary); box-shadow: 0 0 10px rgba(155,107,223,0.2); }
  50% { border-color: var(--color-accent); box-shadow: 0 0 16px rgba(78,234,223,0.3); }
}
.npc-speech {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.7;
}

/* Match Cards */
.match-cards {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.match-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.match-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.match-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

/* Card accent bars */
.match-card--terpene::before { background: linear-gradient(90deg, var(--color-accent), var(--color-primary)); }
.match-card--ratio::before   { background: linear-gradient(90deg, var(--color-primary), var(--color-gold)); }
.match-card--mood::before    { background: linear-gradient(90deg, var(--color-gold), var(--color-accent)); }
.match-card--sources::before { background: linear-gradient(90deg, #50c878, var(--color-accent)); }
.match-card--label::before   { background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); }

.match-card-label {
  font-family: var(--font-pixel);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.match-card-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.4;
}

.match-card--terpene .match-card-value {
  color: var(--color-accent);
  font-size: var(--text-xl);
}

.match-card--ratio .match-card-value {
  color: var(--color-gold);
}

.match-card--mood .match-card-value {
  color: var(--color-primary);
  font-style: italic;
}

.match-card--sources .match-card-value {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  line-height: 1.7;
}

.match-card--label .match-card-value {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  line-height: 1.7;
}

.result-disclaimer {
  padding: var(--space-4);
  background: var(--color-primary-dim);
  border: 1px solid rgba(155, 107, 223, 0.12);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}
.result-disclaimer p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.result-actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

/* ============================================
   SCREEN 4: TERPENE EDUCATION
   ============================================ */
.terpene-cards {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.terpene-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.terpene-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.terpene-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.terpene-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.terpene-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  font-weight: 600;
}
.terpene-aroma {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: 2px;
}

.terpene-body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.terpene-found {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.terpene-found-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.terpene-research {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  font-style: italic;
}

/* Terpene color accents */
.terpene-card[data-terpene="limonene"] .terpene-icon      { background: rgba(255, 200, 50, 0.12); }
.terpene-card[data-terpene="limonene"] .terpene-found-dot { background: #ffc832; }
.terpene-card[data-terpene="linalool"] .terpene-icon      { background: rgba(180, 130, 255, 0.12); }
.terpene-card[data-terpene="linalool"] .terpene-found-dot { background: #b482ff; }
.terpene-card[data-terpene="beta-caryophyllene"] .terpene-icon      { background: rgba(180, 140, 80, 0.15); }
.terpene-card[data-terpene="beta-caryophyllene"] .terpene-found-dot { background: #c09040; }
.terpene-card[data-terpene="myrcene"] .terpene-icon      { background: rgba(80, 200, 120, 0.12); }
.terpene-card[data-terpene="myrcene"] .terpene-found-dot { background: #50c878; }
.terpene-card[data-terpene="pinene"] .terpene-icon      { background: rgba(60, 180, 140, 0.12); }
.terpene-card[data-terpene="pinene"] .terpene-found-dot { background: #3cb48c; }

.edu-disclaimer {
  padding: var(--space-4);
  background: var(--color-primary-dim);
  border: 1px solid rgba(155, 107, 223, 0.12);
  border-radius: var(--radius-md);
}
.edu-disclaimer p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   SCREEN 5: LABEL READING
   ============================================ */
.label-tips {
  display: grid;
  gap: var(--space-4);
}

.label-tip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.label-tip-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.label-tip-num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary-dim);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 10px;
  flex-shrink: 0;
  border: 1px solid rgba(155, 107, 223, 0.2);
}
.label-tip-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 600;
}
.label-tip-body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}
.label-tip-example {
  padding: var(--space-3) var(--space-4);
  background: rgba(78, 234, 223, 0.04);
  border-left: 3px solid rgba(78, 234, 223, 0.4);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-xs);
  color: var(--color-accent);
  line-height: 1.6;
}

/* ============================================
   BOTTOM NAV
   ============================================ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4) calc(var(--space-2) + env(safe-area-inset-bottom, 0px));
  background: rgba(8, 6, 16, 0.94);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-border);
}
.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  color: var(--color-text-faint);
  font-size: 10px;
  font-family: var(--font-body);
  font-weight: 500;
  transition: color var(--transition-fast), background var(--transition-fast);
  min-width: 72px;
}
.nav-btn svg {
  opacity: 0.4;
  transition: opacity var(--transition-fast), stroke var(--transition-fast);
}
.nav-btn.active {
  color: var(--color-accent);
  background: var(--color-accent-dim);
}
.nav-btn.active svg {
  opacity: 1;
  stroke: var(--color-accent);
}
.nav-btn:hover {
  color: var(--color-text-muted);
}
.nav-btn:hover svg { opacity: 0.7; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  position: fixed;
  bottom: 52px;
  left: 0;
  right: 0;
  z-index: 99;
  text-align: center;
  padding: var(--space-1) var(--space-2);
  font-size: 11px;
  color: var(--color-text-faint);
  background: rgba(8, 6, 16, 0.7);
  pointer-events: auto;
}
.site-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.site-footer a:hover {
  color: var(--color-accent);
}
.site-footer .dot {
  margin: 0 var(--space-2);
  opacity: 0.3;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 520px) {
  .bio-grid {
    grid-template-columns: 1fr;
  }
  .screen-inner {
    padding: var(--space-5) var(--space-4) calc(100px + var(--space-6));
  }
  .entrance-title {
    letter-spacing: 4px;
  }
  .entrance-content {
    padding: var(--space-6) var(--space-4) calc(100px + var(--space-6));
  }
  .npc-message {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .result-actions {
    flex-direction: column;
  }
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  .match-card--terpene .match-card-value {
    font-size: var(--text-lg);
  }
}