/* DeTodoUIS — Shared Styles
   Dark theme by default. Light theme via html[data-theme="light"]. */

/* ── CSS Variables — Dark Theme (Default) ── */
:root {
  --bg: #0e0e0e;
  --surface: #181818;
  --surface-2: #222222;
  --surface-3: #2c2c2c;
  --text: #e8e8e8;
  --text-muted: #888888;
  --text-dim: #b0b0b0;
  --border: #333333;
  --border-light: #444444;
  --link: #8ab4f8;
  --link-hover: #aecbfa;
  --accent: #f5c400;
  --accent-dim: rgba(245,196,0,0.08);
  --accent-glow: rgba(245,196,0,0.15);
  --accent-hover: #ffd000;
  --green: #22c55e;
  --green-dim: rgba(34,197,94,0.10);
  --red: #ef4444;
  --red-dim: rgba(239,68,68,0.10);
  --blue: #60a5fa;
  --blue-dim: rgba(96,165,250,0.10);
  --purple: #a855f7;
  --purple-dim: rgba(168,85,247,0.10);
  --radius: 10px;
  --radius-sm: 6px;
  --logo-shadow: rgba(255,255,255,0.06);
  --separator: rgba(255,255,255,0.025);
}

/* ── CSS Variables — Light Theme ── */
html[data-theme="light"] {
  --bg: #e8e6e1;
  --surface: #faf9f6;
  --surface-2: #f0eee9;
  --surface-3: #e5e3de;
  --text: #1a1a1a;
  --text-muted: #505050;
  --text-dim: #5e5e5e;
  --border: #c8c5be;
  --border-light: #a09d96;
  --link: #0057ae;
  --link-hover: #003d7a;
  --accent: #c09000;
  --accent-dim: rgba(192,144,0,0.10);
  --accent-glow: rgba(192,144,0,0.15);
  --accent-hover: #a67c00;
  --green: #15803d;
  --green-dim: rgba(21,128,61,0.10);
  --red: #b91c1c;
  --red-dim: rgba(185,28,28,0.10);
  --blue: #1d4ed8;
  --blue-dim: rgba(29,78,216,0.10);
  --purple: #6d28d9;
  --purple-dim: rgba(109,40,217,0.10);
  --logo-shadow: rgba(0,0,0,0.12);
  --separator: rgba(0,0,0,0.08);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Fragment Mono', monospace;
  min-height: 100vh;
  padding: 0;
  text-align: left;
}

a { color: var(--link); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--link-hover); }

/* ── Page Container ── */
.page { max-width: 640px; margin: 0 auto; padding: 0 1.25rem 4rem; }

/* ── Header ── */
.header {
  padding: 2.5rem 0 2rem;
  text-align: center;
}

.header-brand {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-bottom: 0.75rem;
}

.header-logo {
  width: 44px; height: 44px;
  background: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 12px var(--logo-shadow);
}
.header-logo img { width: 30px; height: auto; display: block; }

.header h1 {
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.header-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  line-height: 1.6;
  max-width: 380px;
  margin: 0 auto;
}

/* ── Nav ── */
.header-nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.header-nav a {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  padding: 4px 0;
  transition: color 0.2s;
}
.header-nav a:hover { color: var(--accent); }

.nav-back {
  display: inline-block;
  font-size: 0.6rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.04em;
  padding: 4px 0;
  margin-top: 0.5rem;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--accent); }

/* ── Store Buttons ── */
.store-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 1.25rem;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  font-family: 'Fragment Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 16px rgba(245,196,0,0.25);
}
.btn-store:hover {
  background: var(--accent-hover);
  color: #000;
  box-shadow: 0 6px 24px rgba(245,196,0,0.35);
  transform: translateY(-1px);
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--border-light); }

.card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}
.card-head:hover { background: var(--surface-2); }

.card-icon {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.card-title {
  flex: 1;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text);
}

.card-arrow {
  font-size: 0.5rem;
  color: var(--text-dim);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  margin-left: 4px;
}
.card.is-collapsed .card-arrow { transform: rotate(-90deg); }
.card.is-collapsed .card-body { display: none; }

.card-body {
  border-top: 1px solid var(--border);
  padding: 14px 16px;
}

.card-body ul,
.card-body ol {
  padding-left: 18px;
  margin: 0;
}

.card-body li {
  font-size: 0.68rem;
  line-height: 1.7;
  color: var(--text-dim);
  list-style: none;
}
.card-body li::before {
  content: "\2014\20";
  color: var(--border-light);
}

.card-body li strong {
  color: var(--text);
  font-weight: 400;
}

.card-body ol li {
  list-style: decimal;
  padding-left: 4px;
}
.card-body ol li::before { content: none; }

.card-body p {
  font-size: 0.65rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 6px 0;
}

.card-body a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.65rem;
  transition: color 0.2s;
}
.card-body a:hover { color: var(--accent-hover); }

.card-body .mailto {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.6rem;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, border-color 0.2s;
}
.card-body .mailto:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Link buttons inside cards ── */
.card-link {
  display: block;
  padding: 10px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Fragment Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-align: center;
  transition: all 0.2s;
  margin-top: 4px;
}
.card-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ── Forms ── */
.form-group { margin-bottom: 12px; }
.form-group label {
  display: block;
  font-size: 0.65rem;
  color: var(--text);
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}
.form-group .form-hint {
  display: block;
  font-size: 0.55rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Fragment Mono', monospace;
  font-size: 0.65rem;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
  display: block;
  width: 100%;
  padding: 12px 20px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Fragment Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 16px;
}
.btn-submit:hover { background: var(--accent-hover); }
.footer-note {
  font-size: 0.55rem;
  color: var(--text-muted);
  line-height: 1.7;
  text-align: center;
  margin-top: 8px;
}

html[data-theme="light"] .form-group label { font-size: 0.75rem; font-weight: 600; }
html[data-theme="light"] .form-group .form-hint { font-size: 0.68rem; }
html[data-theme="light"] .form-group input,
html[data-theme="light"] .form-group textarea {
  font-size: 0.75rem; border: 1px solid var(--border);
  background: var(--surface); padding: 12px 14px;
}
html[data-theme="light"] .btn-submit {
  background: #1a1a1a; color: #fff; font-weight: 600; font-size: 0.8rem;
  padding: 14px 20px; border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
html[data-theme="light"] .btn-submit:hover { background: #333; color: #fff; }
html[data-theme="light"] .footer-note { font-size: 0.68rem; }

/* ── Changelog badges ── */
.card-badge {
  font-size: 0.52rem;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.03em;
  font-weight: 400;
  flex-shrink: 0;
}
.badge-app { color: var(--green); background: var(--green-dim); }
.badge-web { color: var(--blue); background: var(--blue-dim); }
.badge-idea { color: var(--accent); background: var(--accent-dim); }
html[data-theme="light"] .card-badge { font-weight: 500; }

/* ── Privacy policy ── */
.section-title {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.03em;
  margin: 16px 0 8px;
}
.section-title:first-child { margin-top: 0; }
.updated-label {
  font-size: 0.58rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  display: block;
}
html[data-theme="light"] .section-title { color: var(--link); font-weight: 500; }

/* ── Header icon (banned page) ── */
.header-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

/* ── Footer ── */
.page-footer {
  margin-top: 2.5rem;
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.footer-mascot {
  display: block;
  width: 36px; height: 36px;
  margin: 0 auto 10px;
  background-color: var(--accent);
  background-image: url("images/tropelorio.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 70%;
  border-radius: 50%;
  transition: transform 0.2s, box-shadow 0.2s;
}
.footer-mascot:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(245,196,0,0.25);
}

.page-footer p {
  font-size: 0.55rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  line-height: 1.8;
}

.page-footer .app-version {
  display: block;
  font-size: 0.5rem;
  color: var(--border-light);
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* ── Settings Toggle (theme + language) ── */
.settings-toggle {
  position: fixed;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 1000;
  font-family: 'Fragment Mono', monospace;
}

.toggle-btn {
  cursor: pointer;
  user-select: none;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  font-size: 14px;
  font-family: inherit;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.toggle-btn:hover { color: var(--text); }
.toggle-btn.active {
  color: var(--accent);
  background: var(--surface);
  border-color: var(--border);
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .page { padding: 0 1rem 3rem; }
  .header h1 { font-size: 1.3rem; }
  .store-buttons { flex-direction: column; gap: 6px; }
  .btn-store { justify-content: center; }
  .card-head { padding: 10px 12px; }
  .card-body { padding: 12px 12px; }
}

/* ══════════════════════════════════════
   Light Mode Overrides
   ══════════════════════════════════════ */
html[data-theme="light"] .header {
  padding: 3rem 1.5rem 2.5rem;
  margin-bottom: 1rem;
  background: var(--surface);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.03);
}
html[data-theme="light"] .header-brand { gap: 10px; margin-bottom: 1rem; }
html[data-theme="light"] .header-logo {
  width: 54px; height: 54px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
html[data-theme="light"] .header-logo img { width: 37px; }
html[data-theme="light"] .header h1 { font-size: 1.85rem; font-weight: 600; letter-spacing: -0.02em; }
html[data-theme="light"] .header-sub { font-size: 0.8rem; font-weight: 450; line-height: 1.75; max-width: 420px; }
html[data-theme="light"] .header-nav a { font-weight: 500; }
html[data-theme="light"] .header-nav a:hover { color: var(--link); }
html[data-theme="light"] .nav-back { font-weight: 500; }
html[data-theme="light"] .nav-back:hover { color: var(--link); }
html[data-theme="light"] .store-buttons { margin-top: 1.75rem; gap: 10px; }
html[data-theme="light"] .btn-store {
  background: #1a1a1a; color: #fff;
  font-weight: 600; font-size: 0.8rem;
  padding: 14px 32px; border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  letter-spacing: 0.02em;
}
html[data-theme="light"] .btn-store:hover {
  background: #333; color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
}
html[data-theme="light"] .card {
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: 12px; margin-bottom: 12px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05), 0 2px 8px rgba(0,0,0,0.04), 0 8px 20px rgba(0,0,0,0.025);
}
html[data-theme="light"] .card:hover {
  border-color: rgba(0,0,0,0.13);
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.06), 0 8px 20px rgba(0,0,0,0.035);
}
html[data-theme="light"] .card-head { padding: 15px 18px; }
html[data-theme="light"] .card-icon { width: 36px; height: 36px; background: var(--surface-2); border-radius: 8px; font-size: 1.05rem; }
html[data-theme="light"] .card-title { text-transform: none; font-weight: 600; font-size: 0.82rem; letter-spacing: 0.01em; }
html[data-theme="light"] .card-arrow { font-size: 0.6rem; color: var(--text-muted); }
html[data-theme="light"] .card-body { background: var(--surface-2); border-top: 1px solid rgba(0,0,0,0.06); padding: 18px; }
html[data-theme="light"] .card-body li { font-size: 0.78rem; font-weight: 450; line-height: 1.85; }
html[data-theme="light"] .card-body li strong { font-weight: 600; }
html[data-theme="light"] .card-body p { font-size: 0.78rem; line-height: 1.85; }
html[data-theme="light"] .card-body a { color: var(--link); font-size: 0.75rem; font-weight: 500; }
html[data-theme="light"] .card-body a:hover { color: var(--link-hover); }
html[data-theme="light"] .card-link {
  color: var(--text); font-weight: 600; font-size: 0.75rem;
  border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 18px; background: var(--surface); margin-top: 6px;
}
html[data-theme="light"] .card-link:hover { color: var(--link); border-color: var(--link); background: rgba(0,87,174,0.04); }
html[data-theme="light"] .card-body .mailto { font-size: 0.72rem; color: var(--link); border-bottom-color: var(--link); margin-top: 12px; }
html[data-theme="light"] .card-body .mailto:hover { color: var(--link-hover); border-bottom-color: var(--link-hover); }
html[data-theme="light"] .page-footer { margin-top: 2rem; border-top-color: rgba(0,0,0,0.08); }
html[data-theme="light"] .footer-mascot { width: 40px; height: 40px; }
html[data-theme="light"] .page-footer p { font-size: 0.8rem; }
html[data-theme="light"] .page-footer .app-version { font-size: 0.75rem; }
html[data-theme="light"] .toggle-btn.active { background: var(--surface); border-color: var(--border); font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

@media (max-width: 480px) {
  html[data-theme="light"] .header { padding: 2rem 1rem 1.75rem; }
  html[data-theme="light"] .header h1 { font-size: 1.5rem; }
}