/* ══════════════════════════════════════════════════════════════════
   KoreaPlus Theme System
   Dark mode = default. html.light = light override.
   Font size: html.font-sm / html.font-md (default) / html.font-lg
   ══════════════════════════════════════════════════════════════════ */

/* ── Light theme variable overrides ─────────────────────────────── */
html.light {
  --bg:        #f4f6f9;
  --bg2:       #eef1f6;
  --bg3:       #e8ecf3;
  --surface:   rgba(0,0,0,0.04);
  --border:    rgba(0,0,0,0.10);
  --border2:   rgba(0,0,0,0.16);
  --text:      rgba(0,0,0,0.87);
  --text2:     rgba(0,0,0,0.55);
  --text3:     rgba(0,0,0,0.35);
  --accent:    #1a6fc4;
  --accent2:   #1a6fc4;
  --shadow:    0 4px 24px rgba(0,0,0,0.12);
}

html.light body {
  background: var(--bg);
  color: var(--text);
}

html.light .hub-nav,
html.light .header {
  background: rgba(244,246,249,0.95) !important;
  border-bottom-color: var(--border) !important;
}

html.light .hub-nav-logo,
html.light .logo-text { color: #111 !important; }

html.light .hub-nav-link { color: var(--text2) !important; }
html.light .hub-nav-link:hover { color: var(--text) !important; background: var(--surface) !important; }
html.light .hub-nav-link.active { color: var(--accent) !important; background: rgba(26,111,196,0.08) !important; }

html.light .hub-hero {
  background: linear-gradient(160deg, #dde6f5 0%, #f4f6f9 100%) !important;
  border-bottom-color: var(--border) !important;
}

html.light .hub-hero h1 { color: #111 !important; }

html.light .filter-pill { background: #fff !important; border-color: var(--border) !important; color: var(--text2) !important; }
html.light .filter-pill.active { background: rgba(26,111,196,0.1) !important; border-color: rgba(26,111,196,0.4) !important; color: var(--accent) !important; }

/* ── Font size scale ─────────────────────────────────────────────── */
html.font-sm { font-size: 88%; }
html.font-md { font-size: 100%; }
html.font-lg { font-size: 115%; }

/* ── Theme toggle button ─────────────────────────────────────────── */
.kp-theme-btn {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  cursor: pointer; font-size: 16px; transition: all 0.2s;
  flex-shrink: 0;
}
.kp-theme-btn:hover { background: var(--border); transform: scale(1.05); }

/* ── Language switcher ───────────────────────────────────────────── */
.kp-lang-wrap { position: relative; flex-shrink: 0; }
.kp-lang-btn {
  display: flex; align-items: center; gap: 4px;
  padding: 5px 10px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text2); cursor: pointer; font-size: 12px; font-weight: 600;
  transition: all 0.2s;
}
.kp-lang-btn:hover { color: var(--text); border-color: var(--border2); }
.kp-lang-dropdown {
  position: absolute; right: 0; top: calc(100% + 8px);
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: var(--radius-sm); overflow: hidden;
  min-width: 130px; box-shadow: var(--shadow); z-index: 9999;
  display: none;
}
.kp-lang-wrap.open .kp-lang-dropdown { display: block; }
.kp-lang-opt {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px; cursor: pointer; font-size: 13px; color: var(--text2);
  transition: background 0.15s;
}
.kp-lang-opt:hover { background: var(--surface); color: var(--text); }
.kp-lang-opt.active { color: var(--accent2); background: rgba(116,185,255,0.08); }
.kp-lang-opt .lang-flag { font-size: 16px; }
.kp-lang-opt .lang-name { font-weight: 600; }

/* ── Font size controls ──────────────────────────────────────────── */
.kp-font-wrap {
  display: flex; align-items: center; gap: 4px;
  padding: 3px 4px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--border);
  flex-shrink: 0;
}
.kp-font-btn {
  padding: 3px 8px; border-radius: 16px; border: none;
  background: transparent; color: var(--text2); cursor: pointer;
  font-size: 12px; font-weight: 700; transition: all 0.15s;
}
.kp-font-btn:hover { color: var(--text); }
.kp-font-btn.active { background: var(--border2); color: var(--text); }

/* ── Search trigger button ───────────────────────────────────────── */
.kp-search-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text2); cursor: pointer; font-size: 12px;
  transition: all 0.2s; flex-shrink: 0;
}
.kp-search-btn:hover { border-color: var(--border2); color: var(--text); }
.kp-search-btn .search-shortcut {
  font-size: 10px; background: var(--border); border-radius: 4px;
  padding: 1px 5px; color: var(--text3); font-family: monospace;
}

/* ── Search modal ────────────────────────────────────────────────── */
.kp-search-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px); z-index: 99999;
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 80px;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.kp-search-overlay.open { opacity: 1; pointer-events: all; }

.kp-search-box {
  width: min(640px, 92vw); background: var(--bg2);
  border: 1px solid var(--border2); border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  overflow: hidden; transform: translateY(-8px); transition: transform 0.2s;
}
.kp-search-overlay.open .kp-search-box { transform: translateY(0); }

.kp-search-input-row {
  display: flex; align-items: center; gap: 12px; padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.kp-search-input-row .search-icon { font-size: 18px; color: var(--text3); flex-shrink: 0; }
.kp-search-input {
  flex: 1; background: none; border: none; outline: none;
  font-size: 16px; color: var(--text); font-family: var(--font);
}
.kp-search-input::placeholder { color: var(--text3); }
.kp-search-close {
  background: var(--surface); border: none; border-radius: 6px;
  color: var(--text3); cursor: pointer; font-size: 12px; padding: 4px 8px;
}

.kp-search-results { max-height: 420px; overflow-y: auto; padding: 8px 0; }
.kp-search-section { padding: 4px 18px 2px; font-size: 10px; font-weight: 700;
  color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; }
.kp-search-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 18px; cursor: pointer; transition: background 0.12s;
}
.kp-search-item:hover, .kp-search-item.focused { background: var(--surface); }
.kp-search-item .si-icon { font-size: 20px; flex-shrink: 0; width: 28px; text-align: center; }
.kp-search-item .si-body { min-width: 0; }
.kp-search-item .si-title { font-size: 14px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kp-search-item .si-sub   { font-size: 12px; color: var(--text2); margin-top: 1px; }
.kp-search-item .si-tag   { font-size: 11px; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; color: var(--text3); margin-left: auto; flex-shrink: 0; }
.kp-search-empty { text-align: center; padding: 32px 16px; color: var(--text3); font-size: 14px; }

/* ── Cookie consent banner ───────────────────────────────────────── */
.kp-cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 9998;
  background: var(--bg2); border-top: 1px solid var(--border2);
  padding: 14px 20px; display: flex; align-items: center; flex-wrap: wrap;
  gap: 12px; font-size: 13px; box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
  transform: translateY(0); transition: transform 0.3s;
}
.kp-cookie-banner.hidden { transform: translateY(110%); }
.kp-cookie-text { flex: 1; min-width: 200px; color: var(--text2); line-height: 1.5; }
.kp-cookie-text a { color: var(--accent2); text-decoration: underline; }
.kp-cookie-btns { display: flex; gap: 8px; flex-shrink: 0; }
.kp-cookie-accept {
  padding: 7px 18px; border-radius: 20px; border: none;
  background: var(--accent); color: #fff; font-size: 13px;
  font-weight: 700; cursor: pointer; transition: opacity 0.15s;
}
.kp-cookie-accept:hover { opacity: 0.85; }
.kp-cookie-decline {
  padding: 7px 16px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--border2);
  color: var(--text2); font-size: 13px; cursor: pointer; transition: all 0.15s;
}
.kp-cookie-decline:hover { color: var(--text); }

/* ── PWA install prompt ──────────────────────────────────────────── */
.kp-install-prompt {
  position: fixed; bottom: 80px; right: 20px; z-index: 9997;
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 16px; padding: 16px 18px; max-width: 300px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px;
  transform: translateX(120%); transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.kp-install-prompt.visible { transform: translateX(0); }
.kp-install-icon { font-size: 32px; flex-shrink: 0; }
.kp-install-body { min-width: 0; }
.kp-install-title { font-size: 14px; font-weight: 700; color: var(--text); }
.kp-install-sub   { font-size: 12px; color: var(--text2); margin-top: 3px; }
.kp-install-btns  { display: flex; gap: 8px; margin-top: 10px; }
.kp-install-yes {
  padding: 6px 14px; border-radius: 14px; border: none;
  background: var(--accent); color: #fff; font-size: 12px;
  font-weight: 700; cursor: pointer;
}
.kp-install-no {
  padding: 6px 10px; border-radius: 14px; background: none;
  border: none; color: var(--text3); font-size: 12px; cursor: pointer;
}
.kp-install-close {
  position: absolute; top: 8px; right: 10px; background: none;
  border: none; color: var(--text3); cursor: pointer; font-size: 16px;
}

/* ── Share toast ─────────────────────────────────────────────────── */
.kp-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(60px);
  background: #1e2a3a; border: 1px solid var(--border2);
  border-radius: 24px; padding: 10px 22px; font-size: 14px; font-weight: 600;
  color: var(--text); box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  z-index: 99999; transition: transform 0.3s;
  display: flex; align-items: center; gap: 8px;
}
.kp-toast.show { transform: translateX(-50%) translateY(0); }

/* ── Accessibility: focus ring ───────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent2);
  outline-offset: 2px;
}