/* ============================================================
   Daily English — Main Stylesheet
   Color Theme: Deep Navy + Sky Blue + Warm Orange
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Merriweather:ital,wght@0,400;0,700;1,400&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --bg:        #0d1b2e;
  --surface:   #132440;
  --card:      #1a2f4a;
  --card2:     #213a5c;
  --accent:    #38bdf8;
  --accent2:   #f97316;
  --accent3:   #a78bfa;
  --text:      #e2eaf6;
  --muted:     #6b87aa;
  --border:    #243f63;
  --gold:      #fbbf24;
  --green:     #34d399;
  --red:       #ef4444;
  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 6px 28px rgba(0,0,0,0.4);
  --shadow-sm: 0 3px 12px rgba(0,0,0,0.25);
  --transition: all 0.22s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: 'Nunito', sans-serif; cursor: pointer; }
ul { list-style: none; }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Top Navigation Bar ────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: linear-gradient(135deg, #09111e 0%, #132440 100%);
  border-bottom: 1px solid var(--border);
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 12px;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-logo {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.topbar-logo .logo-accent { color: var(--accent); }
.topbar-logo .logo-day   { color: var(--accent2); }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.btn-topbar-home {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.4rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  line-height: 1;
}
.btn-topbar-home:hover { color: var(--accent); background: rgba(56,189,248,0.1); }

.m2ea-link {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent);
  transition: var(--transition);
  white-space: nowrap;
}
.m2ea-link:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.m2ea-link .m2ea-icon { font-size: 0.9rem; }

/* ── Page Wrapper ──────────────────────────────────────────── */
.page-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 18px;
}
.breadcrumb a {
  color: var(--accent);
  font-weight: 700;
  transition: var(--transition);
}
.breadcrumb a:hover { color: var(--accent2); text-decoration: underline; }
.breadcrumb .sep { color: var(--border); margin: 0 2px; }
.breadcrumb .current { color: var(--text); font-weight: 700; }

/* ── Nav Row (back / home buttons) ────────────────────────── */
.nav-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  transition: var(--transition);
}
.btn-nav:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.btn-nav.home { background: var(--card2); }
.btn-nav.home:hover { background: var(--accent2); border-color: var(--accent2); }

/* ── Page Header Block ─────────────────────────────────────── */
.page-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 28px;
}
.page-header-thumb {
  width: 96px;
  height: 68px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--card2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  overflow: hidden;
}
.page-header-thumb img { width: 100%; height: 100%; object-fit: cover; }
.page-header-info { flex: 1; min-width: 0; }
.page-header-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.3;
}
.page-header-meta {
  font-size: 0.83rem;
  color: var(--muted);
  margin-top: 4px;
}
.page-header-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* ── Section Label ─────────────────────────────────────────── */
.section-label {
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 14px;
}

/* ── Bookmark Button Variants ──────────────────────────────── */
.btn-bm {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 13px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  transition: var(--transition);
}
.btn-bm:hover   { color: var(--gold); border-color: var(--gold); }
.btn-bm.saved   { color: var(--gold); border-color: var(--gold); background: rgba(251,191,36,0.08); }

/* Corner bookmark on cards */
.bm-corner {
  position: absolute;
  top: 7px;
  left: 7px;
  z-index: 5;
  background: rgba(13,27,46,0.82);
  border: none;
  border-radius: 7px;
  padding: 4px 7px;
  font-size: 0.95rem;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(4px);
  line-height: 1;
}
.bm-corner:hover { color: var(--gold); background: rgba(13,27,46,0.95); }
.bm-corner.saved  { color: var(--gold); }

/* ── Bookmark Bar (top of home) ────────────────────────────── */
.bookmark-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 28px;
}
.bookmark-bar-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.bookmark-bar-head .bm-icon { font-size: 1.1rem; color: var(--gold); }
.bookmark-bar-head span { font-size: 0.85rem; font-weight: 800; color: var(--text); }
.bookmark-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.bm-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 11px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  transition: var(--transition);
}
.bm-chip:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.bm-chip .bm-x {
  font-size: 0.68rem;
  color: var(--muted);
  margin-left: 2px;
  transition: var(--transition);
}
.bm-chip:hover .bm-x { color: var(--bg); }
.bm-empty {
  font-size: 0.82rem;
  color: var(--muted);
  font-style: italic;
}

/* ── Show Cards (main page) ────────────────────────────────── */
.show-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 36px;
}
.show-card {
  position: relative;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: block;
}
.show-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.show-card.disabled { cursor: default; opacity: 0.55; }
.show-card.disabled:hover { transform: none; border-color: var(--border); box-shadow: none; }
.show-card-img {
  width: 100%;
  height: 165px;
  object-fit: cover;
  background: var(--card2);
}
.show-card-img-placeholder {
  width: 100%;
  height: 165px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: linear-gradient(135deg, var(--card2), var(--surface));
  color: var(--muted);
}
.show-card-body { padding: 14px 16px; }
.show-card-title { font-size: 1rem; font-weight: 900; color: var(--text); }
.show-card-meta  { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }
.show-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--accent2);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 900;
  padding: 3px 9px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.coming-badge {
  background: var(--border);
  color: var(--muted);
}

/* ── Season Grid ───────────────────────────────────────────── */
.season-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}
.season-card {
  position: relative;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: block;
}
.season-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.season-card-img {
  width: 100%;
  height: 115px;
  object-fit: cover;
  background: var(--card2);
}
.season-card-placeholder {
  width: 100%;
  height: 115px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  font-family: 'Merriweather', serif;
  color: var(--muted);
  background: linear-gradient(135deg, var(--card2), var(--surface));
}
.season-card-body { padding: 10px 12px; }
.season-card-title { font-size: 0.9rem; font-weight: 900; color: var(--text); }
.season-card-meta  { font-size: 0.74rem; color: var(--muted); margin-top: 3px; }

/* ── Episode Grid ──────────────────────────────────────────── */
.episode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(195px, 1fr));
  gap: 13px;
}
.episode-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: block;
}
.episode-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.episode-card-img {
  width: 100%;
  height: 108px;
  object-fit: cover;
  background: var(--card2);
}
.episode-card-placeholder {
  width: 100%;
  height: 108px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--surface), var(--card2));
  position: relative;
}
.episode-num-badge {
  position: absolute;
  bottom: 6px;
  left: 8px;
  background: rgba(13,27,46,0.88);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 900;
  padding: 2px 7px;
  border-radius: 12px;
}
.episode-card-body { padding: 9px 11px 11px; }
.episode-card-title { font-size: 0.83rem; font-weight: 800; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.episode-card-desc  { font-size: 0.74rem; color: var(--muted); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Expression List ───────────────────────────────────────── */
.expr-list { display: flex; flex-direction: column; gap: 14px; }
.expr-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
  position: relative;
}
.expr-card:hover {
  border-color: var(--accent);
  background: var(--card2);
  transform: translateX(4px);
}
.expr-num {
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent2);
  margin-bottom: 7px;
}
.expr-phrase {
  font-size: 1.12rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 7px;
}
.expr-phrase .quote { color: var(--muted); font-weight: 400; }
.expr-meaning {
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 9px;
  line-height: 1.6;
}
.expr-example {
  font-size: 0.83rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.6;
  border-left: 2px solid var(--border);
  padding-left: 12px;
  margin-bottom: 14px;
}
.expr-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.btn-youtube {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #ff0000, #cc0000);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-youtube:hover { transform: scale(1.04); box-shadow: 0 4px 18px rgba(255,0,0,0.4); }
.btn-youtube .yt-icon { font-size: 1rem; }

/* ── Toast Notification ────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 28px;
  right: 24px;
  background: var(--card2);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 11px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 1000;
  pointer-events: none;
  box-shadow: var(--shadow-sm);
}
.toast.show { opacity: 1; transform: translateY(0); }

/* ── Hero (home page) ──────────────────────────────────────── */
.home-hero {
  text-align: center;
  padding: 16px 0 28px;
}
.home-hero h1 {
  font-size: 1.9rem;
  font-weight: 900;
  line-height: 1.25;
  color: var(--text);
}
.home-hero h1 .accent { color: var(--accent); }
.home-hero h1 .day    { color: var(--accent2); }
.home-hero p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 9px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Terms Screen ──────────────────────────────────────────── */
.terms-wrap {
  max-width: 620px;
  margin: 0 auto;
  padding: 32px 20px 50px;
}
.terms-hero { text-align: center; margin-bottom: 28px; }
.terms-hero-icon { font-size: 3.2rem; margin-bottom: 10px; }
.terms-hero-title {
  font-size: 1.55rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.3;
}
.terms-hero-sub {
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 7px;
}
.terms-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 16px;
}
.terms-card-title {
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--accent2);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 13px;
}
.terms-card p {
  font-size: 0.87rem;
  color: var(--text);
  line-height: 1.72;
  margin-bottom: 9px;
}
.terms-card p:last-child { margin-bottom: 0; }
.terms-list { padding: 0; }
.terms-list li {
  font-size: 0.86rem;
  color: var(--text);
  line-height: 1.7;
  padding: 9px 0 9px 16px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.terms-list li:last-child { border-bottom: none; padding-bottom: 0; }
.terms-list li::before { content: '▸'; color: var(--accent); position: absolute; left: 0; }
.terms-check-wrap {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 18px;
  cursor: pointer;
}
.terms-check-wrap input[type="checkbox"] {
  width: 20px; height: 20px; flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
  margin-top: 2px;
}
.terms-check-wrap label {
  font-size: 0.87rem;
  color: var(--text);
  cursor: pointer;
  line-height: 1.55;
}
.terms-check-wrap label strong { color: var(--accent); }
.btn-agree {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  color: var(--bg);
  border: none;
  border-radius: var(--radius);
  padding: 15px;
  font-size: 1rem;
  font-weight: 900;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0.38;
  pointer-events: none;
}
.btn-agree.enabled {
  opacity: 1;
  pointer-events: all;
  box-shadow: 0 5px 22px rgba(56,189,248,0.38);
}
.btn-agree.enabled:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(56,189,248,0.5);
}

/* ── Empty State ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state .empty-title { font-size: 1rem; font-weight: 800; color: var(--text); margin-bottom: 6px; }
.empty-state .empty-msg   { font-size: 0.85rem; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
  .show-grid   { grid-template-columns: 1fr 1fr; }
  .season-grid { grid-template-columns: 1fr 1fr 1fr; }
  .episode-grid{ grid-template-columns: 1fr 1fr; }
  .home-hero h1 { font-size: 1.45rem; }
  .topbar-logo  { font-size: 0.95rem; }
  .m2ea-link span.label { display: none; }
  .page-header { flex-direction: column; }
  .page-header-thumb { width: 100%; height: 100px; }
}
@media (max-width: 400px) {
  .show-grid   { grid-template-columns: 1fr; }
  .season-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Site Footer ───────────────────────────────────────────── */
.site-footer {
  margin-top: 52px;
  padding: 18px 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  background: var(--bg);
}
.site-footer .footer-copy { margin-bottom: 4px; }
.site-footer .footer-terms {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.18s;
}
.site-footer .footer-terms:hover { color: var(--accent2); }

/* ── Language Toggle (topbar) ──────────────────────────────── */
.topbar-lang {
  display: flex;
  align-items: center;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px;
  gap: 0;
  flex-shrink: 0;
}
.topbar-lang-btn {
  background: none;
  border: none;
  border-radius: 16px;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 900;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.5px;
  transition: all 0.18s;
  line-height: 1.4;
}
.topbar-lang-btn.active {
  background: var(--accent);
  color: var(--bg);
}
.topbar-lang-btn:not(.active):hover {
  color: var(--text);
}

/* ── Korean body font ──────────────────────────────────────── */
body.ko-active {
  word-break: keep-all;
}
body.ko-active .expr-meaning,
body.ko-active .expr-example,
body.ko-active .expr-context,
body.ko-active .page-header-meta,
body.ko-active .show-card-meta,
body.ko-active .season-card-meta,
body.ko-active .episode-card-desc,
body.ko-active .bm-empty,
body.ko-active .footer-copy {
  font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', 'Nunito', sans-serif;
}

/* ── Content Protection ────────────────────────────────────── */
html.content-protected body {
  -webkit-user-select: none;
  -moz-user-select:    none;
  -ms-user-select:     none;
  user-select:         none;
  -webkit-touch-callout: none;
}
/* Re-enable selection on interactive controls */
html.content-protected input,
html.content-protected textarea,
html.content-protected select,
html.content-protected button,
html.content-protected a,
html.content-protected [contenteditable] {
  -webkit-user-select: auto;
  -moz-user-select:    auto;
  -ms-user-select:     auto;
  user-select:         auto;
}

/* ── Locked Episode Card ───────────────────────────────────── */
.episode-card.locked {
  cursor: default;
  opacity: 0.52;
  pointer-events: none;
}
.episode-card.locked:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}
.ep-lock-badge {
  position: absolute;
  top: 7px;
  right: 7px;
  background: rgba(13,27,46,0.82);
  color: var(--muted);
  font-size: 0.95rem;
  border-radius: 50%;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

/* ── Locked Season Card ────────────────────────────────────── */
.season-card-2x5.locked {
  cursor: default;
  opacity: 0.52;
  pointer-events: none;
}
.season-card-2x5.locked:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}