/* ============================================
   AI Party Game · 设计系统
   ============================================ */

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

:root {
  --bg-0: #0a0a14;
  --bg-1: #11111e;
  --bg-2: #161628;
  --bg-3: #1e1e36;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text-1: #f0f0f8;
  --text-2: #b8b8cc;
  --text-3: #7a7a92;

  --accent-1: #00e5ff;
  --accent-2: #b76eff;
  --accent-3: #ff5ec4;
  --accent-yellow: #ffd84d;
  --accent-green: #43f5a3;

  --grad-1: linear-gradient(135deg, #00e5ff 0%, #b76eff 100%);
  --grad-2: linear-gradient(135deg, #b76eff 0%, #ff5ec4 100%);
  --grad-3: linear-gradient(135deg, #ff5ec4 0%, #ffd84d 100%);

  --radius: 14px;
  --radius-sm: 8px;

  --font-zh: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-en), var(--font-zh);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 20, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
}
.logo-mark {
  font-size: 22px;
  background: var(--grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 4px;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--text-2);
  border-radius: 8px;
  transition: all 0.2s;
}
.nav-links a:hover {
  color: var(--text-1);
  background: var(--bg-2);
}

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 32px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 600px at 20% 30%, rgba(0, 229, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 900px 700px at 80% 70%, rgba(183, 110, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 600px 500px at 50% 100%, rgba(255, 94, 196, 0.12), transparent 60%);
  z-index: 0;
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 960px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent-1);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(44px, 7vw, 92px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.gradient-text {
  background: var(--grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 48px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 80px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-primary {
  background: var(--grad-1);
  color: #0a0a14;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 229, 255, 0.32);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-1);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}
.stat {
  text-align: center;
}
.stat-num {
  font-size: 36px;
  font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}

/* ============================================
   Sections
   ============================================ */

.section {
  padding: 120px 0;
  position: relative;
}
.section-head {
  text-align: center;
  margin-bottom: 80px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--accent-1);
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* ============================================
   Overview / Why
   ============================================ */

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 80px;
}
.why-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.why-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 4px;
  background: var(--grad-1);
}
.why-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-2);
}
.why-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-1);
  letter-spacing: 0.16em;
  margin-bottom: 12px;
}
.why-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 700;
}
.why-card p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
}

.principles {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
}
.principles-title {
  font-size: 22px;
  margin-bottom: 28px;
  font-weight: 700;
}
.principles-list {
  display: grid;
  gap: 16px;
}
.principle {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  font-size: 15px;
  color: var(--text-2);
}
.principle strong {
  color: var(--text-1);
}
.check {
  flex-shrink: 0;
  width: 24px; height: 24px;
  background: var(--grad-1);
  color: #0a0a14;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

/* ============================================
   Direction Sections
   ============================================ */

.section-dir {
  border-top: 1px solid var(--border);
}
.section-dir.dir-1 { background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%); }
.section-dir.dir-2 { background: var(--bg-1); }
.section-dir.dir-3 { background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%); }

.dir-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  margin-bottom: 64px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.dir-number {
  font-size: 96px;
  font-weight: 800;
  line-height: 1;
  background: var(--grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.04em;
}
.dir-2 .dir-number { background: var(--grad-2); -webkit-background-clip: text; }
.dir-3 .dir-number { background: var(--grad-3); -webkit-background-clip: text; }

.dir-eyebrow {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--text-3);
  font-weight: 600;
  margin-bottom: 8px;
}
.dir-titles h2 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.15;
}
.dir-sub {
  color: var(--text-2);
  font-size: 16px;
}

.dir-tags {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-2);
  white-space: nowrap;
}
.tag-green { background: rgba(67, 245, 163, 0.12); border-color: rgba(67, 245, 163, 0.3); color: var(--accent-green); }
.tag-purple { background: rgba(183, 110, 255, 0.12); border-color: rgba(183, 110, 255, 0.3); color: var(--accent-2); }
.tag-pink { background: rgba(255, 94, 196, 0.12); border-color: rgba(255, 94, 196, 0.3); color: var(--accent-3); }

.dir-body {
  display: grid;
  gap: 56px;
}
.dir-section h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dir-section > p {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 14px;
}
.highlight {
  padding: 16px 20px;
  background: rgba(0, 229, 255, 0.06);
  border-left: 3px solid var(--accent-1);
  border-radius: 4px;
  color: var(--text-1) !important;
}
.dir-2 .highlight { background: rgba(183, 110, 255, 0.08); border-color: var(--accent-2); }
.dir-3 .highlight { background: rgba(255, 94, 196, 0.08); border-color: var(--accent-3); }

/* Gameplay */
.gameplay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.gameplay-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s;
}
.gameplay-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  background: var(--bg-3);
}
.gp-icon { font-size: 32px; margin-bottom: 12px; }
.gameplay-card h4 {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: 700;
}
.gameplay-card p {
  color: var(--text-3);
  font-size: 13px;
  line-height: 1.6;
}

/* Code block */
.code-block {
  background: #060611;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  font-family: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #c0c0e0;
  overflow-x: auto;
  white-space: pre;
}
.key-design {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-2);
  border-left: 3px solid var(--accent-yellow);
}
.key-design strong { color: var(--accent-yellow); }

/* Cost */
.cost-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.cost-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.cost-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-3);
  margin-bottom: 8px;
  font-weight: 600;
}
.cost-value {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  background: var(--grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.dir-2 .cost-value { background: var(--grad-2); -webkit-background-clip: text; }
.dir-3 .cost-value { background: var(--grad-3); -webkit-background-clip: text; }
.cost-detail {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.6;
}

/* Pros/Cons */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
}
.pros, .cons {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.pros { border-color: rgba(67, 245, 163, 0.2); }
.cons { border-color: rgba(255, 94, 196, 0.2); }
.pros h3, .cons h3 { font-size: 18px; margin-bottom: 16px; }
.pros h3 { color: var(--accent-green); }
.cons h3 { color: var(--accent-3); }
.pros ul, .cons ul {
  display: grid;
  gap: 10px;
}
.pros li, .cons li {
  font-size: 14px;
  color: var(--text-2);
  padding-left: 20px;
  position: relative;
  line-height: 1.7;
}
.pros li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-weight: 700;
}
.cons li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-3);
  font-weight: 700;
}
.pros strong, .cons strong { color: var(--text-1); }

/* Solutions */
.solution-list {
  display: grid;
  gap: 12px;
}
.solution {
  display: grid;
  grid-template-columns: 160px 30px 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
}
@media (max-width: 720px) {
  .solution { grid-template-columns: 1fr; }
  .sol-arrow { display: none; }
}
.sol-key {
  font-weight: 700;
  color: var(--accent-1);
}
.dir-2 .sol-key { color: var(--accent-2); }
.dir-3 .sol-key { color: var(--accent-3); }
.sol-arrow { color: var(--text-3); }
.sol-val { color: var(--text-2); line-height: 1.7; }

/* Biz */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}
.biz {
  padding: 16px 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-2);
  transition: all 0.2s;
}
.biz:hover {
  border-color: var(--border-strong);
  background: var(--bg-3);
}

/* ============================================
   Comparison
   ============================================ */

.section-compare {
  background: var(--bg-1);
}
.compare-table-wrap {
  overflow-x: auto;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 64px;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 700px;
}
.compare-table th, .compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare-table thead th {
  font-weight: 700;
  background: var(--bg-3);
  font-size: 14px;
  vertical-align: top;
}
.compare-table thead th span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  display: block;
  margin-top: 4px;
}
.compare-table .col-1 { color: var(--accent-1); }
.compare-table .col-2 { color: var(--accent-2); }
.compare-table .col-3 { color: var(--accent-3); }
.compare-table tbody td:first-child {
  font-weight: 600;
  color: var(--text-2);
}
.compare-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}
.compare-table .good { color: var(--accent-green); }
.compare-table .bad { color: var(--accent-3); }

.score-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.score-box h3 {
  font-size: 18px;
  margin-bottom: 28px;
  color: var(--text-2);
  font-weight: 600;
}
.score-bars {
  display: grid;
  gap: 18px;
}
.score-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  align-items: center;
}
@media (max-width: 720px) {
  .score-row { grid-template-columns: 1fr; }
}
.score-name {
  font-weight: 600;
  font-size: 15px;
}
.score-bar {
  position: relative;
  height: 32px;
  background: var(--bg-3);
  border-radius: 6px;
  overflow: hidden;
}
.score-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 1s ease-out;
}
.fill-1 { background: var(--grad-1); }
.fill-2 { background: var(--grad-2); }
.fill-3 { background: var(--grad-3); }
.score-num {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 700;
  font-size: 14px;
  color: var(--text-1);
}

/* ============================================
   Strategy / Timeline
   ============================================ */

.section-strategy {
  background: var(--bg-0);
}
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
  position: relative;
}
@media (max-width: 720px) {
  .timeline { grid-template-columns: 1fr; }
}
.timeline-item {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: all 0.3s;
}
.timeline-item:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.timeline-item:nth-child(1)::before { background: var(--grad-1); }
.timeline-item:nth-child(2)::before { background: var(--grad-2); }
.timeline-item:nth-child(3)::before { background: var(--grad-3); }
.timeline-item::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
}
.timeline-year {
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--accent-1);
  font-weight: 700;
  margin-bottom: 12px;
}
.timeline-item:nth-child(2) .timeline-year { color: var(--accent-2); }
.timeline-item:nth-child(3) .timeline-year { color: var(--accent-3); }
.timeline-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}
.timeline-content p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}
.timeline-target {
  padding: 12px 16px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-2);
  border-left: 3px solid var(--accent-yellow);
}

.synergy {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 64px;
}
.synergy h3 {
  font-size: 20px;
  margin-bottom: 24px;
  font-weight: 700;
}
.synergy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.syn {
  padding: 16px 20px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-2);
}

.recommendation-box {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(183, 110, 255, 0.08));
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-radius: var(--radius);
  padding: 48px;
  position: relative;
  overflow: hidden;
}
.recommendation-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(183, 110, 255, 0.18), transparent 60%);
  z-index: 0;
}
.rec-tag {
  position: relative;
  display: inline-block;
  padding: 6px 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  background: var(--grad-1);
  color: #0a0a14;
  border-radius: 100px;
  margin-bottom: 20px;
}
.recommendation-box h3 {
  position: relative;
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 20px;
}
.recommendation-box ul {
  position: relative;
  display: grid;
  gap: 12px;
}
.recommendation-box li {
  font-size: 15px;
  color: var(--text-2);
  padding-left: 24px;
  position: relative;
  line-height: 1.7;
}
.recommendation-box li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-1);
  font-weight: 700;
}
.recommendation-box strong { color: var(--text-1); }

/* ============================================
   Checklist
   ============================================ */

.section-checklist {
  background: var(--bg-1);
}
.checklist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  max-width: 1100px;
  margin: 0 auto;
}
.cl-item {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-start;
  transition: all 0.2s;
}
.cl-item:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.cl-num {
  flex-shrink: 0;
  width: 36px; height: 36px;
  background: var(--grad-1);
  color: #0a0a14;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
}
.cl-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}
.cl-rec {
  font-size: 13px;
  color: var(--accent-1);
}

/* ============================================
   Footer
   ============================================ */

.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-0);
  padding: 48px 0;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-left p {
  color: var(--text-3);
  font-size: 13px;
  margin-top: 12px;
}
.footer-right {
  text-align: right;
  color: var(--text-3);
  font-size: 13px;
}
.footer-right a {
  color: var(--accent-1);
}
.footer-right a:hover {
  text-decoration: underline;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-head, .why-card, .gameplay-card, .cost-card,
.pros, .cons, .timeline-item, .cl-item, .recommendation-box {
  animation: fadeInUp 0.7s ease both;
}

/* Scroll reveal helper */
.reveal { opacity: 0; transform: translateY(24px); transition: all 0.8s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }