/* ===================================
   I.me — Pages Common CSS
   =================================== */
/* ── 변수 ── */
:root {
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-glow: rgba(99,102,241,.25);
  --bg: #0a0a0f;
  --bg-2: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1e1e2a;
  --border: rgba(255,255,255,.08);
  --border-hover: rgba(99,102,241,.4);
  --text: #f0f0f5;
  --text-2: #a0a0b8;
  --text-3: #6b6b88;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 32px rgba(0,0,0,.5);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --font-sans: 'Inter', 'Noto Sans KR', sans-serif;
}

/* ── 리셋 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { border: none; background: none; font-family: inherit; cursor: pointer; font-style: normal; color: inherit; }
input, textarea, select {
  font-family: inherit; font-size: 1rem; color: var(--text);
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .75rem 1rem; width: 100%;
  outline: none; transition: border-color var(--transition);
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }

/* ── 컨테이너 ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* ── 버튼 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  border-radius: 50px; font-weight: 600; letter-spacing: -.01em;
  transition: all var(--transition); white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; box-shadow: 0 4px 20px var(--accent-glow);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px var(--accent-glow); }
.btn--ghost { border: 1.5px solid var(--border); color: var(--text-2); }
.btn--ghost:hover { border-color: var(--accent); color: var(--text); }
.btn--lg { padding: .9rem 2.2rem; font-size: 1rem; }
.btn--sm { padding: .45rem 1.1rem; font-size: .85rem; }
.btn--full { width: 100%; }

/* ── 헤더 ── */
.header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(10,10,15,.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.header__inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  height: 64px; display: flex; align-items: center; gap: 2rem;
}
.logo {
  font-size: 1.5rem; font-weight: 900; letter-spacing: -.05em;
  color: var(--text); flex-shrink: 0;
}
.logo span { color: var(--accent); }
.gnb {
  display: flex; align-items: center; gap: .25rem;
  flex: 1;
}
.gnb a {
  padding: .45rem .85rem; border-radius: 8px;
  font-size: .9rem; font-weight: 500; color: var(--text-2);
  transition: all var(--transition); white-space: nowrap;
}
.gnb a:hover, .gnb a.is-active {
  color: var(--text); background: rgba(255,255,255,.06);
}
.gnb a.is-active { color: var(--accent); }
.header__right {
  display: flex; align-items: center; gap: 1rem; flex-shrink: 0;
}
.lang-switcher {
  display: flex; align-items: center; gap: .4rem;
  font-size: .8rem; color: var(--text-3);
}
.lang-btn {
  font-size: .8rem; font-weight: 600; color: var(--text-3);
  padding: .2rem .4rem; border-radius: 4px;
  transition: color var(--transition);
}
.lang-btn:hover, .lang-btn.is-active { color: var(--accent); }

/* ── 햄버거 ── */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 28px; padding: 4px;
}
.hamburger span {
  display: block; height: 2px; background: var(--text-2);
  border-radius: 2px; transition: all var(--transition);
}

/* ── 모바일 메뉴 ── */
.mobile-menu {
  display: none; position: fixed; inset: 64px 0 0 0;
  background: var(--bg-2); z-index: 199;
  flex-direction: column; padding: 2rem;
  border-top: 1px solid var(--border);
  overflow-y: auto;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  padding: 1rem 0; font-size: 1.1rem; font-weight: 600;
  color: var(--text-2); border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.mobile-menu a:hover, .mobile-menu a.is-active { color: var(--accent); }
.mobile-menu .btn { margin-top: 1.5rem; }

/* ── 페이지 히어로 ── */
.page-hero {
  padding: 5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(99,102,241,.12), transparent);
  pointer-events: none;
}
.page-hero__label {
  font-size: .75rem; font-weight: 700; letter-spacing: .15em;
  color: var(--accent); text-transform: uppercase; margin-bottom: .75rem;
}
.page-hero__title {
  font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900;
  letter-spacing: -.04em; line-height: 1.15;
  margin-bottom: 1rem;
}
.page-hero__desc {
  font-size: 1.05rem; color: var(--text-2); max-width: 560px;
  line-height: 1.75;
}

/* ── 섹션 공통 ── */
.section { padding: 5rem 0; }
.section__label {
  font-size: .75rem; font-weight: 700; letter-spacing: .15em;
  color: var(--accent); text-transform: uppercase; margin-bottom: .75rem;
}
.section__title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 900;
  letter-spacing: -.04em; margin-bottom: 1rem;
}
.section__desc { font-size: 1rem; color: var(--text-2); max-width: 560px; }

/* ── 카드 ── */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem;
  transition: all var(--transition);
}
.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

/* ── 태그/뱃지 ── */
.tag {
  display: inline-flex; align-items: center;
  padding: .3rem .75rem; border-radius: 50px;
  font-size: .78rem; font-weight: 600;
  background: rgba(99,102,241,.12); color: var(--accent);
  border: 1px solid rgba(99,102,241,.2);
}

/* ── 구분선 ── */
.divider {
  height: 1px; background: var(--border); margin: 3rem 0;
}

/* ── 푸터 ── */
.footer {
  background: var(--bg-2); border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}
.footer__top {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; margin-bottom: 2rem;
  padding-bottom: 2rem; border-bottom: 1px solid var(--border);
}
.logo--footer { font-size: 1.3rem; }
.footer__tagline { font-size: .9rem; color: var(--text-3); }
.footer__bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer__bottom p { font-size: .85rem; color: var(--text-3); }
.footer__nav { display: flex; gap: 1.5rem; }
.footer__nav a {
  font-size: .85rem; color: var(--text-3);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--accent); }

/* ── AOS 애니메이션 ── */
[data-aos] { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
[data-aos].aos-animate { opacity: 1; transform: none; }

/* ── 반응형 ── */
@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .gnb { display: none; }
  .lang-switcher { display: none; }
  .hamburger { display: flex; }
  .header__inner { gap: 1rem; }
  .page-hero { padding: 3.5rem 0 2.5rem; }
  .section { padding: 3.5rem 0; }
  .footer__top { flex-direction: column; align-items: flex-start; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .btn--lg { padding: .8rem 1.6rem; font-size: .95rem; }
}