/* ============================================================
   twinakorea — Game Developer Portfolio
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap');

:root {
  --color-bg: #0d0f1a;
  --color-surface: #161929;
  --color-surface2: #1e2238;
  --color-primary: #6c63ff;
  --color-primary-light: #9b94ff;
  --color-accent: #ff6584;
  --color-text: #e8eaf6;
  --color-text-muted: #9ea3c0;
  --color-border: #2a2f4e;
  --font-heading: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --font-body: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
}

a:hover {
  color: #fff;
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

/* ── Utility ─────────────────────────────────────────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary-light);
  margin-bottom: 12px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(108, 99, 255, 0.35);
}

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

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary-light);
  background: transparent;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--color-text-muted);
  margin-bottom: 48px;
}

/* ── Header / Nav ────────────────────────────────────────── */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

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

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: #fff;
  text-decoration: none;
}

/* ── Hero ────────────────────────────────────────────────── */

.hero {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse at center, rgba(108, 99, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-emoji {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  color: var(--color-primary-light);
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── About ───────────────────────────────────────────────── */

.about {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-icon {
  font-size: 6rem;
  text-align: center;
}

.about-text h2 {
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.skill-chip {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ── Games ───────────────────────────────────────────────── */

.games {
  padding: 80px 0;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.game-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.game-thumb {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  background: var(--color-surface2);
}

.game-info {
  padding: 20px;
}

.game-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.game-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.game-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.badge {
  background: var(--color-surface2);
  border-radius: 6px;
  padding: 2px 10px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.game-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary-light);
}

.game-link svg {
  width: 16px;
  height: 16px;
}

/* ── Contact ─────────────────────────────────────────────── */

.contact {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.contact-box {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}

.contact-box h2 {
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-box p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.contact-email {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary-light);
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 28px;
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.contact-email:hover {
  text-decoration: none;
  background: var(--color-primary);
  color: #fff;
}

.contact-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Footer ──────────────────────────────────────────────── */

footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* ── Privacy Policy page ─────────────────────────────────── */

.policy-page {
  padding: 60px 0 80px;
  max-width: 800px;
  margin: 0 auto;
}

.policy-page h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.policy-page .updated {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 40px;
}

.policy-page h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 32px 0 10px;
  color: var(--color-primary-light);
}

.policy-page p,
.policy-page li {
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.policy-page ul {
  padding-left: 24px;
}

.policy-page a {
  color: var(--color-primary-light);
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-icon {
    font-size: 4rem;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 60px 0 50px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}