/* ═══════════════════════════════════════════════════
   My Pet Elegans — styles.css

   Palette derived from the game's menu background and
   petri dish screenshots: dark desaturated blue-gray,
   silver-gray filaments, soft cool spotlight.
═══════════════════════════════════════════════════ */

/* ─────────────────────────────────────────
   Color & type variables — swap to retheme
───────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg:          #1b2230;
  --bg-card:     rgba(24, 32, 46, 0.78);

  /* Borders */
  --border:      rgba(175, 198, 225, 0.11);
  --border-soft: rgba(175, 198, 225, 0.06);

  /* Text */
  --text:        #bfcfde;    /* primary — muted off-white */
  --text-dim:    #6a7d92;
  --text-faint:  #374858;

  /* Filament / node colors — match the neural line motif */
  --line-color:  rgba(188, 207, 228, 0.16);
  --node-color:  rgba(208, 220, 236, 0.44);

  /* Buttons */
  --btn-bg:      rgba(175, 198, 225, 0.10);
  --btn-hover:   rgba(175, 198, 225, 0.18);
  --btn-border:  rgba(175, 198, 225, 0.18);

  /* Type */
  --font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
}

/* ─────────────────────────────────────────
   Reset & base
───────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow-x: hidden;
  line-height: 1.7;
}

/* ─────────────────────────────────────────
   Filament background canvas
   Fixed behind everything, full viewport
───────────────────────────────────────── */
#filament-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

main {
  position: relative;
  z-index: 1;
}

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh; /* fallback */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Petri dish canvas fills the whole hero section */
#dish-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 48px 28px 96px;
  max-width: 500px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.20em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero-content h1 {
  font-size: clamp(1.9rem, 6vw, 3.2rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 22px;
}

.tagline {
  font-size: clamp(0.82rem, 2vw, 0.95rem);
  color: var(--text-dim);
  line-height: 1.85;
  margin-bottom: 42px;
}

/* ─────────────────────────────────────────
   Buttons
───────────────────────────────────────── */
.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 11px 24px;
  border-radius: 3px;
  font-family: var(--font);
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  border: 1px solid;
}

.btn-primary {
  background: var(--btn-bg);
  color: var(--text);
  border-color: var(--btn-border);
}
.btn-primary:hover {
  background: var(--btn-hover);
  border-color: rgba(175, 198, 225, 0.28);
}

.btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border-soft);
}
.btn-secondary:hover {
  color: var(--text);
  border-color: var(--border);
}

/* ─────────────────────────────────────────
   GIF SHOWCASE
───────────────────────────────────────── */
#showcase {
  padding: 80px 24px;
  display: flex;
  justify-content: center;
}

/* Observation-window card — glassy, lab-instrument feel */
.observation-window {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  max-width: 380px;
  width: 100%;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 0 0 1px rgba(175, 198, 225, 0.04),
    0 4px 40px rgba(0, 0, 0, 0.45),
    0 0 80px rgba(0, 0, 0, 0.20);
}

/* Titlebar strip */
.obs-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-soft);
}

.obs-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  display: block;
  flex-shrink: 0;
}

.obs-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.16em;
  margin-left: 5px;
}

/* GIF — swap path in index.html if asset renamed */
.obs-gif {
  display: block;
  width: 100%;
  height: auto;
}

/* Fallback panel shown when gif fails to load */
.gif-fallback {
  display: none;
  padding: 64px 24px;
  text-align: center;
}
.observation-window.gif-error .obs-gif     { display: none; }
.observation-window.gif-error .gif-fallback { display: block; }

.gif-fallback p {
  color: var(--text-dim);
  font-size: 0.82rem;
}
.gif-fallback .fallback-sub {
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-top: 8px;
}

.obs-caption {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.14em;
  text-align: center;
  padding: 10px 14px;
  border-top: 1px solid var(--border-soft);
}

/* ─────────────────────────────────────────
   ABOUT
───────────────────────────────────────── */
#about {
  padding: 60px 24px 80px;
}

.about-inner {
  max-width: 600px;
  margin: 0 auto;
}

#about h2 {
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 30px;
  letter-spacing: 0.02em;
}

#about p {
  font-size: 0.90rem;
  color: var(--text-dim);
  margin-bottom: 16px;
  line-height: 1.90;
}

.about-link {
  display: inline-block;
  margin-top: 10px;
  margin-right: 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.about-link:hover {
  color: var(--text);
  border-color: rgba(175, 198, 225, 0.25);
}

/* ─────────────────────────────────────────
   FEATURES
───────────────────────────────────────── */
#features {
  padding: 40px 24px 100px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 14px;
  max-width: 940px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 26px 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: border-color 0.25s;
}
.feature-card:hover {
  border-color: rgba(175, 198, 225, 0.18);
}

.feature-icon {
  font-size: 1.25rem;
  color: var(--text-faint);
  margin-bottom: 14px;
  line-height: 1;
  letter-spacing: 0;
}

.feature-card h3 {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.feature-card p {
  font-size: 0.79rem;
  color: var(--text-dim);
  line-height: 1.80;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border-soft);
  padding: 44px 24px;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text); }

.footer-sep {
  color: var(--text-faint);
  font-size: 10px;
  user-select: none;
}

.footer-note {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}

/* ─────────────────────────────────────────
   Responsive tweaks
───────────────────────────────────────── */
@media (max-width: 480px) {
  .hero-content h1  { font-size: 1.75rem; }
  .feature-grid     { grid-template-columns: 1fr; }
  .hero-buttons     { flex-direction: column; align-items: center; }
  .btn-primary,
  .btn-secondary    { width: 100%; max-width: 240px; text-align: center; }
}