/* ================================================================
   index.css — WiseDairy 메인(랜딩) 페이지 전용 스타일
   대상: public/index.html
   ================================================================ */

/* ── Reset & Base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:   #2563EB;   /* 청량한 파랑 */
  --accent:    #10B981;   /* 민트 그린 */
  --dark:      #0F172A;
  --mid:       #334155;
  --light:     #F8FAFC;
  --border:    #E2E8F0;
  --text:      #1E293B;
  --muted:     #64748B;
  --white:     #FFFFFF;
  --radius:    16px;
  --shadow:    0 20px 60px rgba(0,0,0,.12);

  /* ── Font sizes (landing page 전용) ────────────────────────── */
  --idx-text-2xs:   .6rem;                    /* sl-badge */
  --idx-text-xs:    .65rem;                   /* badge-new, cd-label */
  --idx-text-logo-sub: .7rem;                 /* logo-sub */
  --idx-text-sm:    .72rem;                   /* feat-desc, sl-desc */
  --idx-text-label: .75rem;                   /* samples-title */
  --idx-text-caption: .78rem;                 /* feat-desc, footer */
  --idx-text-base:  .8rem;                    /* hero-eyebrow, card-title */
  --idx-text-md:    .85rem;                   /* feat-title, sl-name */
  --idx-text-lg:    .9rem;                    /* progress-item, sl-arrow */
  --idx-text-body:  1.05rem;                  /* hero-desc */
  --idx-text-logo:  1.2rem;                   /* logo-text */
  --idx-text-icon:  20px;                     /* logo-icon */
  --idx-text-feat:  1.4rem;                   /* sl-icon */
  --idx-text-feat-icon: 1.6rem;               /* feat-icon */
  --idx-text-cd:    1.8rem;                   /* countdown number */
  --idx-text-cd-sm: 1.4rem;                   /* countdown number (mobile) */
  --idx-text-hero:  clamp(2rem, 5vw, 3.2rem); /* hero h1 */
}

html, body {
  height: 100%;
  font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', system-ui, sans-serif;
  background: var(--light);
  color: var(--text);
  line-height: 1.6;
}


/* ── Layout ─────────────────────────────────────────────────────── */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ─────────────────────────────────────────────────────── */
header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}

.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--dark);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--idx-text-icon);
}

.logo-text {
  font-size: var(--idx-text-logo);
  font-weight: 700;
  letter-spacing: -.02em;
}

.logo-sub {
  font-size: var(--idx-text-logo-sub);
  font-weight: 400;
  color: var(--muted);
  margin-left: .2rem;
}

.badge-new {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #fff;
  font-size: var(--idx-text-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: .05em;
}

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

/* 배경 장식 원 */
.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,.06) 0%, transparent 70%);
  top: -120px;
  right: -120px;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16,185,129,.07) 0%, transparent 70%);
  bottom: -80px;
  left: -80px;
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(37,99,235,.08);
  color: var(--primary);
  font-size: var(--idx-text-base);
  font-weight: 600;
  padding: .35rem 1rem;
  border-radius: 20px;
  border: 1px solid rgba(37,99,235,.18);
  margin-bottom: 1.8rem;
  letter-spacing: .03em;
}

.hero h1 {
  font-size: var(--idx-text-hero);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.03em;
  color: var(--dark);
  margin-bottom: 1.2rem;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: var(--idx-text-body);
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 3rem;
}

/* ── Progress Card ──────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 2.5rem;
  max-width: 480px;
  width: 100%;
  margin-bottom: 3rem;
}

.card-title {
  font-size: var(--idx-text-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 1.4rem;
}

.progress-list { list-style: none; display: flex; flex-direction: column; gap: .9rem; }

.progress-item {
  display: flex;
  align-items: center;
  gap: .8rem;
  font-size: var(--idx-text-lg);
}

.pi-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--idx-text-md);
  flex-shrink: 0;
}

.pi-icon.done   { background: rgba(16,185,129,.12); color: var(--accent); }
.pi-icon.active { background: rgba(37,99,235,.12);  color: var(--primary); }
.pi-icon.todo   { background: var(--border);         color: var(--muted); }

.pi-label { flex: 1; color: var(--text); }
.pi-label.todo { color: var(--muted); }

.pi-status {
  font-size: var(--idx-text-sm);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
}
.pi-status.done   { background: rgba(16,185,129,.12); color: #059669; }
.pi-status.active { background: rgba(37,99,235,.12);  color: var(--primary); }
.pi-status.todo   { background: var(--border);         color: var(--muted); }

/* ── Feature Grid ───────────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 860px;
  width: 100%;
  margin-bottom: 4rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.4rem 1.2rem;
  text-align: left;
  transition: box-shadow .2s, transform .2s;
}

.feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
  transform: translateY(-2px);
}

.feat-icon {
  font-size: var(--idx-text-feat-icon);
  margin-bottom: .7rem;
}

.feat-title {
  font-size: var(--idx-text-lg);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: .3rem;
}

.feat-desc {
  font-size: var(--idx-text-caption);
  color: var(--muted);
  line-height: 1.5;
}

/* ── Countdown ──────────────────────────────────────────────────── */
.countdown-wrap {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.cd-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .8rem 1.2rem;
  min-width: 64px;
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
}

.cd-num {
  font-size: var(--idx-text-cd);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--primary);
  line-height: 1;
}

.cd-label {
  font-size: var(--idx-text-xs);
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .06em;
  margin-top: .3rem;
  text-transform: uppercase;
}

/* ── Footer ─────────────────────────────────────────────────────── */
footer {
  background: var(--dark);
  color: rgba(255,255,255,.55);
  text-align: center;
  padding: 1.6rem 1rem;
  font-size: var(--idx-text-caption);
}

footer strong { color: rgba(255,255,255,.9); }

/* ── Sample Pages Section ───────────────────────────────────────── */
.samples {
  width: 100%;
  max-width: 860px;
  margin-bottom: 4rem;
}

.samples-title {
  font-size: var(--idx-text-label);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.samples-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.samples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .75rem;
}

.sample-link {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.1rem 1rem;
  text-decoration: none;
  color: var(--text);
  transition: box-shadow .2s, transform .2s, border-color .2s;
  position: relative;
  overflow: hidden;
}
.sample-link:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,.1);
  transform: translateY(-2px);
  border-color: var(--primary);
}
.sample-link:hover .sl-arrow { opacity: 1; transform: translateX(0); }

.sl-icon { font-size: var(--idx-text-feat); }
.sl-name { font-size: var(--idx-text-md); font-weight: 700; color: var(--dark); }
.sl-desc { font-size: var(--idx-text-sm); color: var(--muted); line-height: 1.4; }

.sl-arrow {
  position: absolute;
  right: .9rem; top: 50%;
  transform: translateX(-4px) translateY(-50%);
  opacity: 0;
  transition: opacity .2s, transform .2s;
  color: var(--primary);
  font-size: var(--idx-text-lg);
}

.sl-badge {
  position: absolute;
  top: .6rem; right: .6rem;
  font-size: var(--idx-text-2xs); font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  letter-spacing: .04em;
}
.sl-badge.new  { background: rgba(37,99,235,.1); color: var(--primary); }
.sl-badge.wip  { background: rgba(245,158,11,.1); color: #D97706; }
.sl-badge.plan { background: var(--border); color: var(--muted); }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .card { padding: 1.4rem 1.2rem; }
  .countdown-wrap { gap: .7rem; }
  .cd-box { min-width: 52px; padding: .6rem .8rem; }
  .cd-num { font-size: var(--idx-text-cd-sm); }
  .samples-grid { grid-template-columns: repeat(2, 1fr); }
}