/* ============================================================
   Jung Shin Academy — Site Stylesheet
   ============================================================ */

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

:root {
  --color-bg:         #0d0d0d;
  --color-surface:    #161616;
  --color-border:     #2a2a2a;
  --color-text:       #e8e2d9;
  --color-muted:      #8a8278;
  --color-accent:     #c8882a;
  --color-accent-dk:  #9e6a1e;
  --color-white:      #f5f0e8;
  --font-body:        'Georgia', serif;
  --font-heading:     'Georgia', serif;
  --max-width:        1100px;
  --radius:           4px;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* --- Container -------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Header / Nav ----------------------------------------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.site-title {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-decoration: none;
}

.title-korean {
  font-size: 1.15rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.title-english {
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.main-nav { display: flex; align-items: center; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--color-text);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}

/* --- Hero ------------------------------------------------- */
.hero {
  background: linear-gradient(160deg, #111 0%, #1c1208 60%, #0d0d0d 100%);
  border-bottom: 2px solid var(--color-accent);
  text-align: center;
  padding: 6rem 1.5rem 5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  color: var(--color-white);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 2.4rem;
}

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #000;
  font-size: 0.9rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s;
}

.btn:hover { background: var(--color-accent-dk); text-decoration: none; }

/* --- Home intro section ----------------------------------- */
.home-intro {
  padding: 4rem 1.5rem;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.home-intro p { color: var(--color-muted); font-size: 1.05rem; }

/* --- Card grid -------------------------------------------- */
.home-cards {
  background: var(--color-surface);
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
}

.card h3 {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
}

.card p { color: var(--color-muted); margin-bottom: 1.2rem; font-size: 0.95rem; }
.card a { font-size: 0.9rem; }

/* --- Page content ----------------------------------------- */
.page { padding: 4rem 0 5rem; }

.page-header {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
}

.page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-white);
  letter-spacing: 0.03em;
}

.page-content h2 {
  color: var(--color-accent);
  font-size: 1.3rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.page-content p { margin-bottom: 1.25rem; color: var(--color-text); }
.page-content ul, .page-content ol { margin: 1rem 0 1.5rem 1.5rem; }
.page-content li { margin-bottom: 0.5rem; }

/* --- Schedule table --------------------------------------- */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  font-size: 0.95rem;
}

.schedule-table th {
  background: var(--color-surface);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 0.8rem;
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--color-accent);
}

.schedule-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.schedule-table tr:last-child td { border-bottom: none; }
.schedule-table tr:hover td { background: var(--color-surface); }

/* --- Application form ------------------------------------- */
.application-form {
  max-width: 640px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.65rem 0.9rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit { margin-top: 2rem; }

/* --- Founders -------------------------------------------- */
.founder-entry {
  display: flex;
  gap: 2rem;
  margin-bottom: 3.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--color-border);
}

.founder-entry:last-of-type { border-bottom: none; }

.founder-info h2 {
  color: var(--color-white);
  font-size: 1.4rem;
  margin-bottom: 0.25rem;
}

.founder-info .founder-title {
  color: var(--color-accent);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* --- Blog — post list ------------------------------------- */
.page-description {
  color: var(--color-muted);
  margin-top: 0.5rem;
  font-size: 1rem;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-card {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.post-card:last-child { border-bottom: none; }

.post-card-meta,
.post-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0.6rem;
  display: flex;
  gap: 1rem;
  align-items: center;
}

.post-author::before { content: "· "; }

.post-card-title {
  font-size: 1.4rem;
  color: var(--color-white);
  margin-bottom: 0.6rem;
  font-weight: normal;
}

.post-card-title a { color: inherit; text-decoration: none; }
.post-card-title a:hover { color: var(--color-accent); text-decoration: none; }

.post-card-summary { color: var(--color-muted); margin-bottom: 0.9rem; font-size: 0.98rem; }

.post-read-more { font-size: 0.9rem; }

.post-empty { color: var(--color-muted); font-style: italic; }

/* --- Blog — single post ----------------------------------- */
.post-single .page-header {
  padding-bottom: 1.2rem;
  margin-bottom: 2.5rem;
}

.post-single .page-header h1 {
  margin: 0.4rem 0 0.6rem;
}

.post-back {
  margin-top: 0.8rem;
  font-size: 0.88rem;
}

/* --- Home — latest post preview --------------------------- */
.home-latest-post {
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

.home-latest-post-inner {
  max-width: 720px;
}

.home-latest-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.home-latest-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.home-latest-title {
  font-size: 1.5rem;
  font-weight: normal;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.home-latest-title a { color: inherit; text-decoration: none; }
.home-latest-title a:hover { color: var(--color-accent); }

.home-latest-summary { color: var(--color-muted); margin-bottom: 1rem; }

/* --- Footer ----------------------------------------------- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 700px) {
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
  }

  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.5rem 0; border-bottom: 1px solid var(--color-border); }
  .nav-links li:last-child { border-bottom: none; }

  .site-header { position: relative; }

  .founder-entry { flex-direction: column; }

  .schedule-table { font-size: 0.85rem; }
  .schedule-table th, .schedule-table td { padding: 0.5rem 0.6rem; }
}