/* ==========================================================================
   GRAVITY'S USEFUL TOOLS — shared design system
   Professional Black / Gold / Grey palette
   Used by: index.html (menu), seemlessloop.html, downscaler.html, app.html
   Page-specific blocks are scoped with a body class (.page-menu /
   .page-loop / .page-landing) so class names never collide between tools.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Surfaces */
  --bg: #0a0a0c;
  --bg-gradient: radial-gradient(1200px 700px at 50% -15%, #1c1810 0%, #0a0a0c 58%);
  --panel: rgba(22, 22, 26, 0.82);
  --panel-solid: #141418;
  --raised: #1c1c22;
  --inset: #101013;

  /* Gold accents */
  --gold: #d4af37;
  --gold-soft: #e8cd7e;
  --gold-bright: #f4dd8c;
  --gold-deep: #b3892a;
  --gold-glow: rgba(212, 175, 55, 0.35);
  --gold-faint: rgba(212, 175, 55, 0.10);

  /* Greys / text */
  --text: #f2f0ea;
  --muted: #9c988e;
  --muted-2: #6c6a64;
  --border: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(212, 175, 55, 0.28);
  --danger: #e0685f;

  /* Effects */
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.55);
  --shadow-gold: 0 0 28px rgba(212, 175, 55, 0.14);

  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #0c0c0f; }
::-webkit-scrollbar-thumb { background: #34322b; border-radius: 5px; border: 2px solid #0c0c0f; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

::selection { background: rgba(212, 175, 55, 0.3); color: #fff; }

a { color: var(--gold-soft); text-decoration: none; }
a:hover { color: var(--gold-bright); }

.hidden { display: none !important; }

/* ==========================================================================
   SHARED — Top navigation bar
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem clamp(1rem, 5%, 3.5rem);
  background: rgba(10, 10, 12, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.15rem;
  color: #1a1407;
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 45%, var(--gold-deep) 100%);
  box-shadow: 0 0 16px var(--gold-glow), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.brand-text {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.3px;
  color: var(--text);
}
.brand-text .accent {
  background: linear-gradient(90deg, var(--gold-soft), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav-link.active { color: var(--gold-soft); background: var(--gold-faint); }

/* ==========================================================================
   SHARED — Buttons (work with or without a leading .btn class)
   ========================================================================== */
.btn,
button.btn-primary, button.btn-secondary, button.btn-ghost, button.btn-accent {
  font-family: var(--font-body);
}

.btn, button {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.7rem 1.4rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
button:active, .btn:active { transform: translateY(1px); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 50%, var(--gold-deep) 100%);
  color: #1a1407;
  font-weight: 700;
  box-shadow: 0 4px 18px var(--gold-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 7px 26px var(--gold-glow); color: #1a1407; }

.btn-accent {
  background: linear-gradient(135deg, #e6b94e 0%, var(--gold-deep) 100%);
  color: #1a1407;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(179, 137, 42, 0.35);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 7px 26px rgba(179, 137, 42, 0.5); }

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--gold-soft);
}
.btn-secondary:hover {
  background: var(--gold-faint);
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.12);
}

.btn-ghost {
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: #25252c; border-color: var(--muted-2); }

.btn-text {
  background: none;
  border: none;
  color: var(--muted);
  font-weight: 500;
  padding: 0.5rem 0.6rem;
}
.btn-text:hover { color: var(--gold-soft); }

/* ==========================================================================
   SHARED — Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 5%;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 4rem;
}
.site-footer .credits {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-2);
  margin-top: 0.6rem;
}

/* ==========================================================================
   PAGE: MAIN MENU (.page-menu)
   ========================================================================== */
.page-menu .menu-hero {
  text-align: center;
  padding: 5rem 1.5rem 2.5rem;
  max-width: 820px;
  margin: 0 auto;
  animation: fadeInDown 0.7s ease-out;
}

.page-menu .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--border-gold);
  background: var(--gold-faint);
  padding: 0.35rem 1rem;
  border-radius: 30px;
  margin-bottom: 1.6rem;
}

.page-menu .menu-hero h1 {
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 1.1rem;
}
.page-menu .menu-hero h1 .gold {
  background: linear-gradient(100deg, var(--gold-bright) 0%, var(--gold) 40%, var(--gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-menu .menu-hero p {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 620px;
  margin: 0 auto;
}

.tools-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 5%, 2rem) 3rem;
  animation: fadeInUp 0.7s ease-out;
}

.section-label {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin: 1.5rem 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-gold), transparent);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.8rem;
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), border-color 0.3s, box-shadow 0.3s;
}
.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(420px 180px at 0% 0%, var(--gold-faint), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.tool-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow), var(--shadow-gold);
}
.tool-card:hover::before { opacity: 1; }

.tool-icon {
  width: 54px;
  height: 54px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 1.2rem;
  background: linear-gradient(145deg, #201d15, #16140e);
  border: 1px solid var(--border-gold);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.tool-card h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.tool-card p {
  color: var(--muted);
  font-size: 0.92rem;
  flex-grow: 1;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.1rem 0 1.2rem;
}
.tool-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.2rem 0.7rem;
}

.tool-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--gold-soft);
}
.tool-card:hover .tool-cta { color: var(--gold-bright); }
.tool-cta svg { transition: transform 0.25s; }
.tool-card:hover .tool-cta svg { transform: translateX(4px); }

/* "Coming soon" placeholder card */
.tool-card.soon {
  cursor: default;
  border-style: dashed;
  opacity: 0.7;
}
.tool-card.soon:hover { transform: none; box-shadow: none; border-color: var(--border); }
.tool-card.soon:hover::before { opacity: 0; }
.tool-card.soon .tool-icon { opacity: 0.5; }

/* ==========================================================================
   PAGE: SEAMLESS LOOP MAKER (.page-loop)
   ========================================================================== */
.page-loop .wrap {
  max-width: 840px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.page-loop .tool-head {
  text-align: center;
  margin-bottom: 2rem;
  animation: fadeInDown 0.6s ease-out;
}
.page-loop .tool-head h1 {
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  background: linear-gradient(100deg, var(--gold-bright), var(--gold) 55%, var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-loop .tool-head p { color: var(--muted); font-size: 0.98rem; max-width: 560px; margin: 0 auto; }

.page-loop .panel {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.page-loop #drop {
  border: 2px dashed var(--border-gold);
  border-radius: 14px;
  padding: 2.6rem 1.25rem;
  text-align: center;
  cursor: pointer;
  background: rgba(212, 175, 55, 0.02);
  transition: border-color 0.18s, background 0.18s;
}
.page-loop #drop.hover { border-color: var(--gold); background: var(--gold-faint); }
.page-loop #drop .big { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.4rem; }
.page-loop #drop .small { color: var(--muted); font-size: 0.85rem; }
.page-loop input[type=file] { display: none; }

.page-loop .filemeta { display: none; align-items: center; gap: 0.7rem; flex-wrap: wrap; }
.page-loop .filemeta.show { display: flex; }
.page-loop .badge {
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.page-loop .badge b { color: var(--text); }

.page-loop canvas {
  width: 100%;
  height: 130px;
  display: block;
  background: var(--inset);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.page-loop .controls { display: grid; gap: 1.15rem; }
.page-loop .row { display: flex; align-items: center; gap: 0.9rem; }
.page-loop .row label {
  width: 150px;
  flex-shrink: 0;
  font-size: 0.9rem;
  color: var(--text);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  margin: 0;
}
.page-loop .row .val {
  width: 72px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
  font-size: 0.88rem;
  font-family: var(--font-mono);
}
.page-loop .hint { font-size: 0.78rem; color: var(--muted); margin: -0.6rem 0 0 164px; }

.page-loop input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}
.page-loop input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 8px var(--gold-glow);
  cursor: pointer;
  transition: transform 0.1s;
}
.page-loop input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.page-loop input[type=range]::-moz-range-thumb {
  width: 17px; height: 17px; border: none; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 8px var(--gold-glow); cursor: pointer;
}

.page-loop select {
  flex: 1;
  background: var(--inset);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
  outline: none;
}
.page-loop select:focus { border-color: var(--gold); box-shadow: 0 0 10px var(--gold-faint); }

.page-loop .btns { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.page-loop .toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
}
.page-loop .toggle input { accent-color: var(--gold); }

.page-loop .status { font-size: 0.85rem; color: var(--muted); margin-top: 0.7rem; min-height: 18px; }
.page-loop .status.err { color: var(--danger); }

/* ==========================================================================
   PAGE: RETROPIXEL LANDING (.page-landing)
   ========================================================================== */
.page-landing .hero {
  padding: 5rem 5% 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-landing .badge-promo {
  background: var(--gold-faint);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 1.8rem;
}

.page-landing .hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  max-width: 900px;
  margin-bottom: 1.4rem;
  letter-spacing: -1px;
  background: linear-gradient(to bottom, #ffffff 35%, var(--gold-soft) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-landing .hero-subtitle {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 720px;
  margin-bottom: 2.6rem;
}

.page-landing .hero-ctas {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 4rem;
  justify-content: center;
  flex-wrap: wrap;
}

.page-landing .mockup-container {
  width: 100%;
  max-width: 1000px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 6px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px);
  position: relative;
}
.page-landing .mockup-container::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), var(--gold-faint));
  z-index: -1;
  pointer-events: none;
}
.page-landing .mockup-bar {
  height: 38px;
  background: rgba(10, 10, 12, 0.6);
  border-radius: 12px 12px 0 0;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}
.page-landing .mockup-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.15); }
.page-landing .mockup-dot.red { background: #c9554d; }
.page-landing .mockup-dot.yellow { background: var(--gold); }
.page-landing .mockup-dot.green { background: #7a8a4d; }
.page-landing .mockup-img { width: 100%; display: block; border-radius: 0 0 12px 12px; background-color: #0b0b0d; }

.page-landing .section-pipeline { padding: 6rem 5%; max-width: 1200px; margin: 0 auto; }

.page-landing .section-header { text-align: center; margin-bottom: 4rem; }
.page-landing .section-header h2 {
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #fff, var(--muted));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-landing .section-header p { color: var(--muted); font-size: 1.08rem; max-width: 600px; margin: 0 auto; }

.page-landing .pipeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
}
.page-landing .pipeline-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.1rem 1.7rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  backdrop-filter: blur(10px);
}
.page-landing .pipeline-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}
.page-landing .step-number {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.page-landing .pipeline-card h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
  font-weight: 700;
  color: #fff;
}
.page-landing .pipeline-card p { font-size: 0.9rem; color: var(--muted); }

.page-landing .section-pricing {
  padding: 5rem 5% 7rem;
  background: radial-gradient(circle at 50% 50%, var(--gold-faint), transparent 60%);
}
.page-landing .pricing-container {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}
.page-landing .pricing-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.8rem 2.1rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: box-shadow 0.3s, transform 0.3s;
  backdrop-filter: blur(12px);
}
.page-landing .pricing-card:hover { box-shadow: var(--shadow); }
.page-landing .pricing-card.premium {
  border: 1.5px solid var(--gold);
  background: rgba(28, 24, 16, 0.7);
  transform: scale(1.03);
  box-shadow: var(--shadow-gold);
}
.page-landing .pricing-card.premium::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px;
  right: 25px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  color: #1a1407;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 0.72rem;
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.page-landing .tier-title {
  font-family: var(--font-title);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #fff;
}
.page-landing .tier-price {
  font-family: var(--font-title);
  font-size: 2.7rem;
  font-weight: 800;
  margin-bottom: 1.4rem;
  color: #fff;
  display: flex;
  align-items: baseline;
}
.page-landing .tier-price span {
  font-size: 1rem;
  color: var(--muted);
  font-family: var(--font-body);
  font-weight: 400;
  margin-left: 4px;
}
.page-landing .tier-desc { font-size: 0.95rem; color: var(--muted); margin-bottom: 2rem; min-height: 48px; }
.page-landing .tier-features { list-style: none; margin-bottom: 2.2rem; flex-grow: 1; }
.page-landing .tier-features li {
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-landing .tier-features svg { color: var(--gold); flex-shrink: 0; }
.page-landing .pricing-card.free .tier-features svg { color: var(--muted-2); }

@media (max-width: 768px) {
  .page-landing .pricing-container { grid-template-columns: 1fr; }
  .page-landing .pricing-card.premium { transform: none; }
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   PAGE: DOWNSCALER APP (.page-app)
   ========================================================================== */
.page-app .app-head {
  text-align: center;
  max-width: 760px;
  margin: 2rem auto 2.5rem;
  padding: 0 1.5rem;
  animation: fadeInDown 0.6s ease-out;
}
.page-app .app-head h1 {
  font-family: var(--font-title);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 0.6rem;
  background: linear-gradient(100deg, var(--gold-bright), var(--gold) 55%, var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-app .app-head p { color: var(--muted); font-size: 1rem; }

/* Workspace layout: input | action | output */
.page-app .minimal-saas-container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto 3rem;
  padding: 0 clamp(1rem, 5%, 2rem);
  animation: fadeInUp 0.7s ease-out;
}
@media (max-width: 900px) {
  .page-app .minimal-saas-container { grid-template-columns: 1fr; gap: 1.4rem; max-width: 520px; }
  .page-app .saas-action-divider { margin-top: 0 !important; }
}

.page-app .saas-card,
.page-app .glass-panel {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.8rem;
  box-shadow: var(--shadow);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.page-app .saas-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow), var(--shadow-gold); }

.page-app .saas-card-header h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1.4rem;
}

.page-app .saas-upload-zone {
  border: 2.5px dashed var(--border-gold);
  border-radius: 16px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: rgba(212, 175, 55, 0.02);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
}
.page-app .saas-upload-zone:hover,
.page-app .saas-upload-zone.dragover {
  border-color: var(--gold);
  background: var(--gold-faint);
  box-shadow: 0 0 22px rgba(212, 175, 55, 0.1);
}
.page-app .upload-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  background: var(--gold-faint);
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.1);
}
.page-app .upload-icon-wrapper svg { width: 28px; height: 28px; }
.page-app .saas-upload-zone p { font-size: 0.95rem; color: var(--text); font-weight: 600; }
.page-app .saas-upload-zone span { font-size: 0.8rem; color: var(--muted); }

.page-app .saas-preview-wrapper {
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  aspect-ratio: 1 / 1;
  max-height: 350px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
}
.page-app .saas-preview-wrapper canvas { width: 100%; height: 100%; object-fit: contain; }

.page-app .checkerboard {
  background-image:
    linear-gradient(45deg, rgba(255, 255, 255, 0.05) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, 0.05) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.05) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.05) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.page-app canvas.pixelated {
  image-rendering: -moz-crisp-edges;
  image-rendering: -webkit-crisp-edges;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.page-app .saas-action-divider {
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-app .btn-convert-glow {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.1rem;
  padding: 1.05rem 2.1rem;
  border-radius: 50px;
  border: 1.5px solid var(--gold-soft);
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 50%, var(--gold-deep) 100%);
  color: #1a1407;
  box-shadow: 0 0 26px var(--gold-glow);
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
}
.page-app .btn-convert-glow:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 0 38px var(--gold-glow);
}

.page-app .saas-output-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--inset);
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 3rem 1.5rem;
  flex-grow: 1;
}
.page-app .placeholder-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  opacity: 0.4;
  margin-bottom: 1rem;
}
.page-app .placeholder-icon-wrapper svg { width: 28px; height: 28px; }
.page-app .saas-output-placeholder p { font-size: 0.95rem; color: var(--muted); font-weight: 600; margin-bottom: 0.25rem; }
.page-app .saas-output-placeholder span { font-size: 0.8rem; color: var(--muted-2); }

.page-app .saas-download-actions { display: flex; width: 100%; }

/* Toggle switch */
.page-app .toggle-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}
.page-app .toggle-label-desc { font-size: 0.9rem; color: var(--text); font-weight: 500; }
.page-app .switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.page-app .switch input { opacity: 0; width: 0; height: 0; }
.page-app .slider {
  position: absolute;
  inset: 0;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border);
  border-radius: 24px;
  transition: 0.3s;
}
.page-app .slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--muted);
  border-radius: 50%;
  transition: 0.3s;
}
.page-app input:checked + .slider { background-color: var(--gold-faint); border-color: var(--gold); }
.page-app input:checked + .slider:before {
  transform: translateX(20px);
  background-color: var(--gold);
  box-shadow: 0 0 8px var(--gold-glow);
}

/* Form controls */
.page-app .control-group { margin-bottom: 1.25rem; }
.page-app .control-group:last-child { margin-bottom: 0; }
.page-app label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.page-app select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.page-app select:focus { border-color: var(--gold); box-shadow: 0 0 10px var(--gold-faint); }
.page-app input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  margin: 6px 0;
}
.page-app input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 6px var(--gold-glow);
  cursor: pointer;
  transition: transform 0.1s;
}
.page-app input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.page-app input[type=range]::-moz-range-thumb {
  width: 16px; height: 16px; border: none; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 6px var(--gold-glow); cursor: pointer;
}

.page-app .btn-sm { padding: 0.5rem 1rem; font-size: 0.82rem; }

/* Pixel grid overlay (used by hidden hooks / optional) */
.page-app .pixel-grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  background-size: calc(100% / 16) calc(100% / 16);
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.15) 1px, transparent 1px);
}
.page-app .pixel-grid-overlay.active { opacity: 1; }