:root {
  /* Palette derived from the app icon: iridescent pastels on sage green */
  --bg: #0f1412;
  --bg-2: #161b18;
  --ink: #eaece8;
  --ink-dim: #9ba69f;
  --magenta: #e8b3c8;   /* iridescent rose */
  --cyan: #a8d0d4;      /* soft cyan */
  --yellow: #e8d5b0;    /* warm cream */
  --green: #b5d4ae;     /* icon sage */
  --lavender: #c2bcdc;
  --border: rgba(255, 255, 255, 0.07);
  --card: rgba(255, 255, 255, 0.035);
  --card-hi: rgba(255, 255, 255, 0.065);
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Helvetica Neue", sans-serif;
  --font-pixel: "Press Start 2P", "VT323", monospace;
  --font-mono: "VT323", ui-monospace, Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(232, 179, 200, 0.12), transparent 55%),
    radial-gradient(ellipse at 85% 30%, rgba(168, 208, 212, 0.10), transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(181, 212, 174, 0.08), transparent 65%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  z-index: -2;
  animation: bg-drift 28s ease-in-out infinite alternate;
}

@keyframes bg-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-3%, -2%, 0) scale(1.08); }
}

.bg-grid {
  position: fixed;
  inset: -20% -20% -20% -20%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, transparent 0%, black 40%, black 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 40%, black 70%, transparent 100%);
  transform: perspective(800px) rotateX(58deg) translateY(25%);
  z-index: -1;
  opacity: 0.35;
  pointer-events: none;
}

.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.06) 3px,
    rgba(0, 0, 0, 0) 4px
  );
  pointer-events: none;
  z-index: 1000;
  mix-blend-mode: multiply;
  opacity: 0.7;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  background: rgba(15, 20, 18, 0.6);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 32px; height: 32px; border-radius: 8px; }
.brand-name {
  font-family: var(--font-pixel);
  font-size: 14px;
  letter-spacing: 1px;
  background: linear-gradient(90deg, var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}
.site-nav a:hover { color: var(--cyan); text-shadow: 0 0 8px rgba(168, 208, 212, 0.6); }

.lang-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
}
.lang-toggle:hover { border-color: var(--cyan); box-shadow: 0 0 12px rgba(168, 208, 212, 0.4); }
.lang-toggle .sep { opacity: 0.4; margin: 0 6px; }
.lang-toggle [data-lang] { transition: opacity 0.2s, color 0.2s; }
.lang-toggle [data-lang].active { color: var(--cyan); opacity: 1; }
.lang-toggle [data-lang]:not(.active) { opacity: 0.45; }

/* Hero */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px 100px;
  position: relative;
  gap: 60px;
}

.hero-inner { max-width: 860px; width: 100%; }

.hero-shot {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  perspective: 1400px;
}
.hero-shot-frame {
  position: relative;
  z-index: 1001;
  aspect-ratio: 16 / 10;
  border-radius: 18px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow:
    0 30px 70px -20px rgba(0, 0, 0, 0.6),
    0 16px 40px -20px rgba(232, 179, 200, 0.25),
    inset 0 0 40px rgba(0, 0, 0, 0.35);
  transform: rotateX(3deg);
  transition: transform 0.4s ease;
}
.hero-shot-frame:hover { transform: rotateX(0deg) translateY(-6px); }
.hero-shot-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  image-rendering: pixelated;
}
.hero-shot-frame .hero-shot-placeholder {
  position: absolute;
  inset: 0;
  display: none;
}
.hero-shot-frame img:not([style*="display: none"]) ~ .hero-shot-placeholder {
  display: none;
}

/* Copyright credits line under the hero screenshot */
.hero-credits {
  margin-top: 14px;
  padding: 0 12px;
  font-size: 10px;
  line-height: 1.6;
  color: var(--ink-dim);
  opacity: 0.55;
  text-align: center;
  letter-spacing: 0.2px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero-icon {
  width: 160px;
  height: 160px;
  border-radius: 32px;
  filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.35)) drop-shadow(0 0 32px rgba(232, 179, 200, 0.25));
  margin-bottom: 28px;
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(32px, 6vw, 64px);
  letter-spacing: 2px;
  line-height: 1.2;
  background: linear-gradient(100deg,
    var(--magenta) 0%,
    var(--lavender) 30%,
    var(--cyan) 55%,
    var(--green) 80%,
    var(--yellow) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 20px;
  position: relative;
  animation: iridescent-shift 14s ease-in-out infinite alternate;
}
@keyframes iridescent-shift {
  0%   { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* Keep .glitch class but make it a no-op so data-text still works silently */
.glitch { position: relative; }

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 26px);
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 16px;
  color: var(--ink-dim);
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s;
  border: 1px solid transparent;
  font-family: var(--font-body);
  letter-spacing: 0.3px;
  cursor: pointer;
}

.btn-primary {
  color: #1a1a1a;
  background: linear-gradient(135deg, var(--yellow), var(--magenta) 55%, var(--lavender) 85%, var(--cyan));
  background-size: 220% 220%;
  box-shadow: 0 10px 28px -8px rgba(0, 0, 0, 0.5), 0 0 24px rgba(232, 179, 200, 0.28);
  animation: btn-shift 10s ease infinite;
}
@keyframes btn-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 14px 36px -8px rgba(0, 0, 0, 0.5), 0 0 36px rgba(232, 179, 200, 0.45);
}

.btn-ghost {
  color: var(--ink);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.03);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-lg { padding: 18px 40px; font-size: 17px; }

.badges {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0.85;
}

/* Sections */
.section {
  max-width: 1160px;
  margin: 0 auto;
  padding: 80px 28px;
}

.section-title {
  font-family: var(--font-pixel);
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: 1px;
  margin-bottom: 12px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-lead {
  color: var(--ink-dim);
  font-size: 16px;
  margin-bottom: 40px;
  max-width: 640px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Generic placeholder (shared) */
.shot-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--cyan);
  background:
    repeating-linear-gradient(0deg, rgba(168, 208, 212, 0.04) 0 2px, transparent 2px 4px),
    radial-gradient(circle at 50% 50%, rgba(232, 179, 200, 0.12), transparent 70%);
  letter-spacing: 2px;
  text-shadow: 0 0 12px rgba(168, 208, 212, 0.6);
  text-align: center;
  padding: 20px;
}

/* Concept */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 12px;
}
.concept-block {
  padding: 36px 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  position: relative;
  overflow: hidden;
}
.concept-block::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--magenta), var(--cyan), var(--yellow));
  background-size: 200% 100%;
  animation: btn-shift 8s linear infinite;
}
.concept-eyebrow {
  font-family: var(--font-pixel);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--magenta);
  margin-bottom: 14px;
  text-shadow: 0 0 8px rgba(232, 179, 200, 0.6);
}
.concept-block h3 {
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.25;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--ink), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.concept-block p {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.75;
}

/* Featured highlights */
.featured-item {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 40px 0;
}
.featured-item + .featured-item {
  border-top: 1px dashed var(--border);
}
.featured-item.reverse .featured-media { order: 2; }
.featured-item.reverse .featured-text { order: 1; }

.featured-media { min-width: 0; }
.featured-text { min-width: 0; }

.featured-num {
  font-family: var(--font-pixel);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--yellow);
  margin-bottom: 12px;
  opacity: 0.85;
}
.featured-text h3 {
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  margin-bottom: 14px;
  background: linear-gradient(90deg, var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.featured-text p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-dim);
}
.featured-text p .note {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.7;
  letter-spacing: 0.3px;
}

/* Media frame (single image/video) */
.media-frame {
  position: relative;
  z-index: 1001;
  aspect-ratio: 16 / 10;
  border-radius: 14px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 16px 48px -20px rgba(0, 0, 0, 0.7);
  transition: all 0.3s;
}
.media-frame:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 179, 200, 0.4);
  box-shadow: 0 24px 60px -20px rgba(232, 179, 200, 0.35);
}
.media-frame img,
.media-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
}
.media-frame .shot-placeholder {
  position: absolute;
  inset: 0;
  display: none;
}
.media-frame img:not([style*="display: none"]) ~ .shot-placeholder,
.media-frame video:not([style*="display: none"]) ~ .shot-placeholder { display: none; }

/* Copyright / credit line under a media element */
.media-caption {
  margin-top: 10px;
  font-size: 11px;
  color: var(--ink-dim);
  opacity: 0.65;
  text-align: center;
  letter-spacing: 0.3px;
  line-height: 1.5;
}

/* Filter picker above the BA slider */
.ba-filter-segmented {
  display: inline-flex;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 12px;
  gap: 2px;
}
.ba-seg {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: none;
  color: var(--ink-dim);
  font-family: var(--font-pixel);
  font-size: 10px;
  letter-spacing: 1.5px;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}
.ba-seg:hover { color: var(--ink); }
.ba-seg.active {
  color: #1a1a1a;
  background: linear-gradient(90deg, var(--yellow), var(--magenta));
  box-shadow: 0 0 12px rgba(232, 179, 200, 0.4);
}

/* Before/After slider */
.ba-slider {
  --split: 50%;
  position: relative;
  aspect-ratio: 8 / 5;
  border-radius: 14px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 16px 48px -20px rgba(0, 0, 0, 0.7);
  user-select: none;
  -webkit-user-select: none;
}
.ba-slider-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  image-rendering: pixelated;
  pointer-events: none;
}
.ba-slider-before {
  /* Reveal the "before" image only to the left of the split */
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
  -webkit-clip-path: inset(0 calc(100% - var(--split)) 0 0);
  z-index: 2;
}
.ba-slider-after { z-index: 1; }

.ba-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
  background:
    repeating-linear-gradient(0deg, rgba(168, 208, 212, 0.04) 0 2px, transparent 2px 4px),
    radial-gradient(circle at 50% 50%, rgba(232, 179, 200, 0.12), transparent 70%);
  letter-spacing: 1px;
  text-align: center;
  padding: 16px;
}
.ba-placeholder-after { z-index: 1; }
.ba-placeholder-before {
  z-index: 2;
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
  -webkit-clip-path: inset(0 calc(100% - var(--split)) 0 0);
}
.ba-placeholder span { max-width: 90%; }

/* Draggable split handle */
.ba-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  width: 2px;
  margin-left: -1px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.55);
  pointer-events: none;
  z-index: 3;
}
.ba-slider-handle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(0, 0, 0, 0.06);
}
.ba-slider-handle::after {
  content: "⇔";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -52%);
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1;
}

/* Invisible range input drives the split (full-area drag handle) */
.ba-slider-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
  z-index: 4;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}
.ba-slider-input::-webkit-slider-runnable-track { background: transparent; height: 100%; }
.ba-slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 48px;
  height: 100%;
  background: transparent;
  cursor: ew-resize;
}
.ba-slider-input::-moz-range-track { background: transparent; height: 100%; }
.ba-slider-input::-moz-range-thumb {
  width: 48px;
  height: 100%;
  background: transparent;
  border: none;
  cursor: ew-resize;
}
.ba-slider-input:focus-visible {
  opacity: 1;
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  background: transparent;
}

.ba-label {
  position: absolute;
  top: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-pixel);
  font-size: 9px;
  letter-spacing: 1.5px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  z-index: 3;
  pointer-events: none;
}
.ba-label-before {
  left: 12px;
  color: var(--ink-dim);
}
.ba-label-after {
  right: 12px;
  color: #1a1a1a;
  background: linear-gradient(90deg, var(--yellow), var(--magenta));
  border: none;
  box-shadow: 0 0 12px rgba(232, 179, 200, 0.5);
}

/* Audio A/B compare: both audios play in sync, custom controls, segmented mute */
.audio-compare {
  padding: 28px 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.audio-compare audio { display: none; }

.audio-controls {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
}
.audio-play {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--yellow), var(--magenta));
  color: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 12px rgba(232, 179, 200, 0.35);
  transition: transform 0.15s ease;
}
.audio-play:hover { transform: scale(1.05); }
.audio-play:active { transform: scale(0.96); }
.audio-play svg { width: 14px; height: 14px; }
.audio-play .icon-pause { display: none; }
.audio-controls.is-playing .audio-play .icon-play { display: none; }
.audio-controls.is-playing .audio-play .icon-pause { display: block; }

.audio-time {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink-dim);
  min-width: 36px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.audio-scrub {
  flex: 1;
  min-width: 0;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--cyan) 0%,
    var(--cyan) var(--progress, 0%),
    rgba(255, 255, 255, 0.12) var(--progress, 0%),
    rgba(255, 255, 255, 0.12) 100%);
  cursor: pointer;
  margin: 0;
}
.audio-scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(168, 208, 212, 0.5);
}
.audio-scrub::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  cursor: pointer;
}
.audio-scrub:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }

.audio-hint {
  font-size: 12px;
  color: var(--ink-dim);
  opacity: 0.75;
  text-align: center;
}

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

.feature {
  padding: 28px 24px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c1, var(--magenta)), var(--c2, var(--cyan)));
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 0;
  mix-blend-mode: overlay;
}

.feature:hover {
  transform: translateY(-4px);
  background: var(--card-hi);
  border-color: rgba(232, 179, 200, 0.4);
  box-shadow: 0 12px 40px rgba(232, 179, 200, 0.15);
}
.feature:hover::before { opacity: 0.08; }

.feature > * { position: relative; z-index: 1; }

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--c1, var(--magenta)), var(--c2, var(--cyan)));
  box-shadow: 0 0 18px color-mix(in srgb, var(--c1, var(--magenta)) 50%, transparent);
}

.feature h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}

.feature p {
  font-size: 14px;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Requirements */
.req-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.req-card {
  padding: 24px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--border);
}
.req-card h3 {
  font-family: var(--font-pixel);
  font-size: 13px;
  color: var(--yellow);
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.req-card p { font-size: 14px; color: var(--ink-dim); }
.req-card code {
  font-family: var(--font-mono);
  font-size: 15px;
  background: rgba(168, 208, 212, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--cyan);
}

/* Download / steps */
.download-section { padding-bottom: 100px; }

.steps {
  list-style: none;
  display: grid;
  gap: 18px;
  margin-bottom: 40px;
}
.steps li {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  align-items: flex-start;
  transition: all 0.3s;
}
.steps li:hover { border-color: rgba(168, 208, 212, 0.4); }

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--magenta), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 16px;
  color: #000;
  box-shadow: 0 0 18px rgba(232, 179, 200, 0.4);
}

.steps h3 { font-size: 16px; margin-bottom: 6px; }
.steps p { font-size: 14px; color: var(--ink-dim); }
.steps code {
  font-family: var(--font-mono);
  font-size: 15px;
  background: rgba(0, 0, 0, 0.4);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--yellow);
  border: 1px solid rgba(232, 213, 176, 0.2);
}

.dl-cta { text-align: center; }

/* Acknowledgements */
.acks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.ack-card {
  display: block;
  padding: 24px 22px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.ack-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--magenta), var(--cyan));
  opacity: 0.6;
  transition: opacity 0.25s, width 0.25s;
}
.ack-card:hover {
  transform: translateY(-3px);
  background: var(--card-hi);
  border-color: rgba(168, 208, 212, 0.35);
  box-shadow: 0 12px 32px -10px rgba(168, 208, 212, 0.3);
}
.ack-card:hover::before { opacity: 1; width: 5px; }
.ack-card-plain { cursor: default; }
.ack-card-plain:hover { transform: none; background: var(--card); border-color: var(--border); box-shadow: none; }
.ack-card-plain:hover::before { opacity: 0.6; width: 3px; }

.ack-eyebrow {
  font-family: var(--font-pixel);
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--yellow);
  margin-bottom: 10px;
  text-shadow: 0 0 6px rgba(232, 213, 176, 0.4);
}
.ack-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 2px;
  line-height: 1.3;
}
.ack-by {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
  margin-bottom: 10px;
  min-height: 1.2em;
}
.ack-card p {
  font-size: 13px;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 28px 28px;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-icon { width: 40px; height: 40px; border-radius: 10px; }
.footer-title {
  font-family: var(--font-pixel);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 1px;
}
.footer-sub { font-size: 13px; color: var(--ink-dim); margin-top: 3px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--cyan); }
.footer-tiny {
  max-width: 1160px;
  margin: 24px auto 0;
  font-size: 11px;
  color: var(--ink-dim);
  opacity: 0.6;
  text-align: center;
}

/* Responsive */
@media (max-width: 900px) {
  .featured-item {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 32px 0;
  }
  .featured-item.reverse .featured-media { order: 1; }
  .featured-item.reverse .featured-text { order: 2; }
  .audio-row { flex-direction: column; align-items: stretch; gap: 8px; }
  .audio-row-label { min-width: 0; align-self: flex-start; }
}

@media (max-width: 720px) {
  .site-header { padding: 12px 16px; }
  .site-nav { gap: 14px; }
  .site-nav a:not(.lang-toggle) { display: none; }
  .section { padding: 60px 20px; }
  .hero { gap: 40px; padding: 40px 16px 60px; }
  .hero-icon { width: 120px; height: 120px; }
  .concept-block { padding: 28px 22px; }
  .steps li { padding: 18px; gap: 14px; }
  .footer-inner { flex-direction: column; text-align: center; }
}