:root {
  --bg: #0f0f13;
  --bg2: #16161e;
  --bg3: #1e1e2a;
  --border: #2a2a3a;
  --accent: #6c63ff;
  --accent2: #a78bfa;
  --text: #e8e8f0;
  --text2: #9090a8;
  --radius: 12px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  min-height: 100vh;
  line-height: 1.5;
}

/* ── HEADER ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 19, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.logo span {
  color: var(--accent);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── HERO ── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 40%, var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--text2);
  max-width: 480px;
  margin: 0 auto 32px;
}

/* ── UPLOAD ZONE ── */
.upload-zone {
  max-width: 540px;
  margin: 0 auto 16px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg2);
  text-align: center;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent);
  background: rgba(108, 99, 255, 0.08);
}

.upload-zone input {
  display: none;
}

.upload-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.upload-zone h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.upload-zone p {
  font-size: 13px;
  color: var(--text2);
  margin: 0;
}

.upload-zone .ext-list {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.ext-badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 11px;
  font-family: monospace;
  color: var(--text2);
}

/* ── FILTERS ── */
.filters {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 24px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-label {
  font-size: 13px;
  color: var(--text2);
  margin-right: 4px;
}

.filter-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── GAMES GRID ── */
.catalog {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 12px;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.game-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.game-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108, 99, 255, 0.15);
}

.game-cover {
  width: 100%;
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
  overflow: hidden;
}

.game-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.6));
}

.game-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.game-info {
  padding: 12px;
}

.game-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.game-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
}

.console-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #fff;
}

.game-year {
  font-size: 12px;
  color: var(--text2);
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text2);
  padding: 64px 0;
  font-size: 15px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #5a52e8;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── PLAY PAGE ── */
.play-layout {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px;
}

.play-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}

.back-btn:hover {
  color: var(--text);
}

.play-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.play-console-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
  background: var(--accent);
}

.emulator-container {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}

#game {
  width: 100%;
  aspect-ratio: 4/3;
  display: block;
}

.play-controls {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.controls-info {
  margin-top: 24px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.controls-info h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 11px;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.key {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 12px;
  font-family: monospace;
  font-weight: 600;
  color: var(--text);
  min-width: 36px;
  text-align: center;
  white-space: nowrap;
}

.key-action {
  color: var(--text2);
  font-size: 13px;
}

/* ── UPLOAD MODAL (play page) ── */
.upload-card {
  background: var(--bg2);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  aspect-ratio: 4/3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.upload-card:hover,
.upload-card.drag-over {
  border-color: var(--accent);
  background: rgba(108, 99, 255, 0.05);
}

.upload-card .upload-icon {
  font-size: 56px;
  margin: 0;
}

.upload-card h2 {
  font-size: 20px;
  font-weight: 700;
}

.upload-card p {
  font-size: 14px;
  color: var(--text2);
  max-width: 320px;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--text2);
  font-size: 13px;
}

/* ── SEARCH ── */
.search-wrap {
  flex: 1;
  max-width: 360px;
}

.search-input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}

.search-input:focus {
  border-color: var(--accent);
}

.search-input::placeholder {
  color: var(--text2);
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .hero {
    padding: 40px 16px 32px;
  }

  .games-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }

  .filters {
    padding-bottom: 16px;
  }

  .play-layout {
    padding: 16px;
  }

  .controls-grid {
    grid-template-columns: 1fr 1fr;
  }
}