/* ===== NorthStar K-Beauty — Global Styles ===== */
:root {
  --navy: #0f172a;
  --gold: #c9a84c;
  --gold-light: #f0d080;
  --pink: #f472b6;
  --pink-soft: #fdf2f8;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-500: #64748b;
  --gray-700: #334155;
  --text: #1e293b;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.7;
}

/* ===== Header / Nav ===== */
header {
  background: var(--navy);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 60px;
}

nav a {
  color: var(--gray-200);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:first-child {
  color: var(--gold);
  font-weight: 700;
  font-size: 1.05rem;
  margin-right: auto;
}

nav a:hover { color: var(--gold-light); }

/* ===== Main ===== */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
  background: linear-gradient(135deg, var(--navy) 0%, #1e3a5f 100%);
  border-radius: var(--radius);
  margin-bottom: 3rem;
  color: var(--white);
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero .sub {
  font-size: 1.1rem;
  color: var(--gray-200);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Sections ===== */
.section { margin-bottom: 3rem; }

.section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

/* ===== Product Grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1rem;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  background: var(--gray-100);
}

.card .brand {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card .name {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0.25rem 0;
  line-height: 1.3;
}

.card .price {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold);
}

/* ===== Ingredient Grid ===== */
.ingredient-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.ing-card {
  background: var(--pink-soft);
  border: 1px solid #f9a8d4;
  border-radius: 50px;
  padding: 0.5rem 1.25rem;
  text-decoration: none;
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ing-card:hover { background: #fce7f3; }

.ing-cat {
  font-size: 0.75rem;
  color: var(--pink);
  font-weight: 400;
}

/* ===== Blog List ===== */
.blog-list { display: flex; flex-direction: column; gap: 1rem; }

.blog-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s;
}

.blog-card:hover { border-color: var(--gold); }

.blog-title { font-weight: 700; font-size: 1rem; margin-bottom: 0.3rem; }
.blog-desc { font-size: 0.88rem; color: var(--gray-500); }

/* ===== Product Page ===== */
.product-page { max-width: 720px; }
.product-page img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}
.product-page h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.25rem; }
.product-page .brand { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 1rem; }
.product-page .lead {
  font-size: 1.05rem;
  background: var(--gray-50);
  border-left: 4px solid var(--gold);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.25rem 0;
}
.product-page section { margin: 1.75rem 0; }
.product-page h2 { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 0.75rem; }
.product-page ul { padding-left: 1.5rem; }
.product-page li { margin-bottom: 0.4rem; }

.cta {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.buy-btn {
  background: var(--gold);
  color: var(--navy);
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: background 0.2s;
}

.buy-btn:hover { background: var(--gold-light); }

.cta .price {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 800;
}

/* ===== Ingredient Page ===== */
.ingredient-page { max-width: 760px; }
.ingredient-page h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.inci {
  background: var(--gray-100);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.85rem;
  display: inline-block;
  margin-bottom: 0.5rem;
}
.ingredient-page .lead {
  font-size: 1.05rem;
  background: var(--pink-soft);
  border-left: 4px solid var(--pink);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.25rem 0;
}
.ingredient-page section { margin: 1.75rem 0; }
.ingredient-page h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.75rem; }
.ingredient-page ul { padding-left: 1.5rem; }
.ingredient-page li { margin-bottom: 0.4rem; }

/* ===== FAQ ===== */
.faq details {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  margin-bottom: 0.6rem;
  overflow: hidden;
}

.faq summary {
  padding: 0.9rem 1.1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--gray-50);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 1.2rem; color: var(--gold); }
details[open] summary::after { content: '−'; }

.faq details p {
  padding: 1rem 1.1rem;
  color: var(--gray-700);
  font-size: 0.95rem;
}

/* ===== Ranking Page ===== */
.ranking-list { list-style: none; }

.rank-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.25rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  background: var(--white);
  box-shadow: var(--shadow);
}

.rank-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gold);
  min-width: 3rem;
  text-align: center;
}

.rank-item img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--gray-100);
  flex-shrink: 0;
}

.rank-info { flex: 1; }
.rank-info .brand { font-size: 0.8rem; color: var(--gray-500); text-transform: uppercase; }
.rank-info h2 { font-size: 1rem; font-weight: 700; margin: 0.2rem 0; }
.rank-info h2 a { text-decoration: none; color: var(--navy); }
.rank-info .desc { font-size: 0.88rem; color: var(--gray-700); margin: 0.3rem 0; }
.rank-info .price { font-weight: 700; color: var(--gold); }
.rank-info .rating { font-size: 0.85rem; color: var(--gray-500); }

/* ===== Static Pages ===== */
.policy-page, .about-page, .contact-page {
  max-width: 720px;
}
.policy-page h1, .about-page h1, .contact-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--navy);
}
.policy-page h2 { font-size: 1.2rem; font-weight: 700; margin: 1.5rem 0 0.5rem; color: var(--navy); }
.policy-page p, .about-page p, .contact-page p { margin-bottom: 1rem; color: var(--gray-700); }
.policy-page ul { padding-left: 1.5rem; color: var(--gray-700); }
.policy-page li { margin-bottom: 0.4rem; }
.policy-page a, .contact-page a { color: var(--gold); }

/* ===== Blog Post ===== */
.blog-post { max-width: 720px; }
.blog-post h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.blog-post .meta { font-size: 0.85rem; color: var(--gray-500); margin-bottom: 1.5rem; }
.blog-post .lead {
  font-size: 1.05rem;
  background: var(--gray-50);
  border-left: 4px solid var(--gold);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 1.5rem;
}
.blog-post h2 { font-size: 1.3rem; font-weight: 700; margin: 1.5rem 0 0.75rem; }
.blog-post p { margin-bottom: 1rem; color: var(--gray-700); }
.blog-post ul { padding-left: 1.5rem; color: var(--gray-700); }
.blog-post li { margin-bottom: 0.4rem; }

/* ===== Footer ===== */
footer {
  background: var(--navy);
  color: var(--gray-200);
  padding: 2rem 1.5rem;
  margin-top: 4rem;
  text-align: center;
}

footer p { font-size: 0.85rem; margin-bottom: 1rem; }

.lang-switcher {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.lang-switcher a {
  color: var(--gray-200);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--gray-500);
  border-radius: 4px;
  transition: border-color 0.2s, color 0.2s;
}

.lang-switcher a:hover { border-color: var(--gold); color: var(--gold); }

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .rank-item { flex-direction: column; }
  .rank-item img { width: 80px; height: 80px; }
  nav { gap: 1rem; }
}

.cta-left { display: flex; flex-direction: column; gap: 0.5rem; }

.discount-code {
  color: var(--gold-light);
  font-size: 0.85rem;
  margin: 0;
}

.discount-code strong {
  background: var(--gold);
  color: var(--navy);
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-family: monospace;
  letter-spacing: 0.05em;
}