/* ── Midnight ─────────────────────────────────────── */
[data-theme="midnight"] {
  --bg:        #0f0f0f;
  --bg2:       #1a1a1a;
  --bg3:       #2a2a2a;
  --border:    #2a2a2a;
  --text:      #eeeeee;
  --text2:     #aaaaaa;
  --text3:     #666666;
  --accent:    #f97316;
  --accent-h:  #ea6c0a;
  --accent-s:  rgba(249,115,22,0.15);
  --danger:    #7f1d1d;
  --danger-t:  #fca5a5;
  --success:   #14532d;
  --success-t: #86efac;
}
/* ── Slate ────────────────────────────────────────── */
[data-theme="slate"] {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --text:      #e6edf3;
  --text2:     #8b949e;
  --text3:     #484f58;
  --accent:    #fb8500;
  --accent-h:  #e07800;
  --accent-s:  rgba(251,133,0,0.15);
  --danger:    #6e1c1c;
  --danger-t:  #fca5a5;
  --success:   #1a4731;
  --success-t: #6ee7b7;
}
/* ── Parchment ────────────────────────────────────── */
[data-theme="parchment"] {
  --bg:        #f5f0e8;
  --bg2:       #ede7d9;
  --bg3:       #ddd6c4;
  --border:    #c9bfa8;
  --text:      #2c1f0e;
  --text2:     #6b5744;
  --text3:     #a08878;
  --accent:    #c2410c;
  --accent-h:  #9a3309;
  --accent-s:  rgba(194,65,12,0.12);
  --danger:    #7f1d1d;
  --danger-t:  #fff;
  --success:   #14532d;
  --success-t: #fff;
}
/* ── Forest ───────────────────────────────────────── */
[data-theme="forest"] {
  --bg:        #f0f4f0;
  --bg2:       #e4ede4;
  --bg3:       #d0ddd0;
  --border:    #b0c4b0;
  --text:      #1a2e1a;
  --text2:     #4a6741;
  --text3:     #7a9a72;
  --accent:    #c2410c;
  --accent-h:  #9a3309;
  --accent-s:  rgba(194,65,12,0.12);
  --danger:    #7f1d1d;
  --danger-t:  #fff;
  --success:   #14532d;
  --success-t: #fff;
}

/* ── Reset & base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 16px;
  overflow-x: hidden;
}
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Navigation ───────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  overflow: hidden;
  max-width: 100vw;
}
.nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.9rem;
  flex-wrap: wrap;
  overflow: hidden;
}

/* Hamburger (mobile only) */
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; padding: 0.2rem; }
@media (max-width: 600px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem;
    gap: 0.75rem;
  }
  .nav-links.open { display: flex; }
}

/* ── Cards ────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}
@media (min-width: 600px) { .card { padding: 2rem; } }

/* ── Forms ────────────────────────────────────────── */
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.65rem 0.9rem;
  font-size: 1rem;
  width: 100%;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  white-space: nowrap;
  min-height: 44px; /* touch target */
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled)  { background: var(--accent-h); }
.btn-neutral  { background: var(--bg3); color: var(--text); }
.btn-neutral:hover:not(:disabled)  { filter: brightness(0.9); }
.btn-danger   { background: var(--danger); color: var(--danger-t); }
.btn-danger:hover:not(:disabled)   { filter: brightness(1.2); }
.btn-success  { background: var(--success); color: var(--success-t); }
.btn-success:hover:not(:disabled)  { filter: brightness(1.2); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.82rem; min-height: 36px; border-radius: 6px; }
.btn-full { width: 100%; }

/* ── Badges ───────────────────────────────────────── */
.badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500; }
.badge-accent  { background: var(--accent-s); color: var(--accent); }
.badge-muted   { background: var(--bg3); color: var(--text2); }
.badge-danger  { background: var(--danger); color: var(--danger-t); }
.badge-success { background: var(--success); color: var(--success-t); }
.badge-warn    { background: #78350f; color: #fcd34d; }

/* ── Stats grid ───────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.stat { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.stat .val { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.stat .lbl { font-size: 0.78rem; color: var(--text2); margin-top: 0.2rem; }

/* ── Progress bar ─────────────────────────────────── */
.progress-wrap { margin-top: 1rem; display: none; }
.progress-bg { background: var(--bg3); border-radius: 999px; height: 8px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 999px; background: var(--accent); width: 0%; transition: width 0.2s; }
.progress-label { font-size: 0.82rem; color: var(--text2); margin-top: 0.4rem; text-align: center; }

/* ── Tabs ─────────────────────────────────────────── */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; overflow: hidden; }
.tab { padding: 0.6rem 1rem; background: none; border: none; color: var(--text2); cursor: pointer; font-size: 0.9rem; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; min-height: 44px; flex: 1; text-align: center; }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Utility ──────────────────────────────────────── */
.muted { color: var(--text2); }
.small { font-size: 0.85rem; }
.error-text { color: #f87171; font-size: 0.88rem; }
.mt1 { margin-top: 0.5rem; }
.mt2 { margin-top: 1rem; }
.mt3 { margin-top: 1.5rem; }
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 0.85rem; color: var(--text2); margin-bottom: 0.4rem; }

/* ── Theme swatches ───────────────────────────────── */
.theme-picker { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.theme-swatch {
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
  border: 3px solid transparent; transition: border-color 0.2s, transform 0.15s;
  min-width: 32px;
}
.theme-swatch:hover { transform: scale(1.1); }
.theme-swatch.active { border-color: var(--accent); }
.theme-swatch[data-theme="midnight"]  { background: radial-gradient(circle at 40% 40%, #f97316 30%, #0f0f0f 31%); }
.theme-swatch[data-theme="slate"]     { background: radial-gradient(circle at 40% 40%, #fb8500 30%, #0d1117 31%); }
.theme-swatch[data-theme="parchment"] { background: radial-gradient(circle at 40% 40%, #c2410c 30%, #f5f0e8 31%); }
.theme-swatch[data-theme="forest"]    { background: radial-gradient(circle at 40% 40%, #c2410c 30%, #f0f4f0 31%); }

/* ── Empty state ──────────────────────────────────── */
.empty { text-align: center; padding: 3rem 1rem; color: var(--text3); }

/* ── Page wrapper ─────────────────────────────────── */
.page { padding: 1.25rem; max-width: 1100px; margin: 0 auto; width: 100%; }
@media (min-width: 768px) { .page { padding: 2rem; } }