/* ChallengeCalendars - single stylesheet, no build step.
   Light theme by default; dark via [data-theme="dark"] (toggle) with
   prefers-color-scheme respected on first visit by the inline script. */

:root {
  --bg: #faf8f5;
  --bg-alt: #f1ede7;
  --card: #ffffff;
  --ink: #22252a;
  --ink-soft: #5c6470;
  --line: #e3ded6;
  --accent: #e8590c;
  --accent-soft: #ffe3d1;
  --success: #2f9e44;
  --danger: #d6455d;
  --shadow: 0 1px 3px rgba(30, 25, 20, .07), 0 8px 24px rgba(30, 25, 20, .06);
  --radius: 14px;

  /* Challenge palette (light) */
  --c-ember: #e8590c;  --c-ember-soft: #ffe3d1;
  --c-ocean: #1c7ed6;  --c-ocean-soft: #d5e8fb;
  --c-forest: #2f9e44; --c-forest-soft: #d7f0dc;
  --c-violet: #7048e8; --c-violet-soft: #e6ddfc;
  --c-rose: #e64980;   --c-rose-soft: #fcdcea;
  --c-gold: #d9a406;   --c-gold-soft: #faedc4;
  --c-teal: #12b3aa;   --c-teal-soft: #d1f2f0;
  --c-slate: #64748b;  --c-slate-soft: #e4e9f0;
}

[data-theme="dark"] {
  --bg: #14161a;
  --bg-alt: #1b1e24;
  --card: #20242b;
  --ink: #e8e6e2;
  --ink-soft: #9aa1ab;
  --line: #32363e;
  --accent: #ff7a3d;
  --accent-soft: #45261a;
  --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);

  --c-ember-soft: #45261a;
  --c-ocean-soft: #1a2f45;
  --c-forest-soft: #1c3524;
  --c-violet-soft: #2c2347;
  --c-rose-soft: #421f2e;
  --c-gold-soft: #3d3416;
  --c-teal-soft: #14332f;
  --c-slate-soft: #262d38;
  --c-ember: #ff7a3d; --c-ocean: #4da3ff; --c-forest: #52c479; --c-violet: #a67aff;
  --c-rose: #ff6b9e; --c-gold: #ffc43d; --c-teal: #40d0c8; --c-slate: #94a3be;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
img { max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 2rem; letter-spacing: -.02em; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 660px; }
.section { padding: 48px 20px; }
.section-alt { background: var(--bg-alt); }
.center { text-align: center; }
.muted { color: var(--ink-soft); font-size: .92em; }
.lead { font-size: 1.12rem; color: var(--ink-soft); }
.accent { color: var(--accent); }
.crumbs { font-size: .88rem; color: var(--ink-soft); margin-bottom: 18px; }

/* ---- Header / nav ---------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 16px; }
.brand { font-weight: 800; font-size: 1.15rem; color: var(--ink); letter-spacing: -.02em; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand-accent { color: var(--accent); }
.brand-mark {
  display: inline-block; width: 26px; height: 26px; border-radius: 7px;
  background: var(--accent); color: #fff; text-align: center; line-height: 26px;
  font-size: .95rem; margin-right: 4px; vertical-align: -4px;
}
.site-nav { display: flex; align-items: center; gap: 18px; }
.site-nav a { color: var(--ink); font-weight: 500; font-size: .95rem; }
.site-nav a.btn { color: #fff; }
.nav-burger { display: none; background: none; border: 0; font-size: 1.5rem; color: var(--ink); cursor: pointer; }
.theme-toggle { background: none; border: 0; font-size: 1.2rem; cursor: pointer; color: var(--ink-soft); padding: 2px 4px; }
.theme-toggle:hover { color: var(--ink); }

@media (max-width: 760px) {
  .nav-burger { display: block; }
  .site-nav {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; padding: 14px 20px 18px;
    background: var(--bg); border-bottom: 1px solid var(--line); gap: 12px;
  }
  .site-nav.open { display: flex; }
}

/* ---- Buttons / forms --------------------------------------------------- */
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  border: 0; border-radius: 10px; padding: 10px 20px;
  font-weight: 650; font-size: .97rem; cursor: pointer; text-align: center;
  transition: transform .06s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.07); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-big { padding: 14px 28px; font-size: 1.05rem; }
.btn-small { padding: 7px 14px; font-size: .88rem; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-soft); filter: none; }
.btn-danger { background: var(--danger); }

.stack { display: flex; flex-direction: column; gap: 16px; margin: 20px 0; }
.stack label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .95rem; }
input[type=text], input[type=email], input[type=password], input[type=date],
input[type=number], input[type=search], textarea, select {
  font: inherit; color: var(--ink); background: var(--card);
  border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
textarea { resize: vertical; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .row-2 { grid-template-columns: 1fr; } }
.check { flex-direction: row !important; align-items: center; gap: 10px !important; font-weight: 500 !important; }
.check input { width: auto; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-weight: 600; font-size: .95rem; padding: 0 0 6px; }
.hp { position: absolute !important; left: -9999px; }

.picker { display: flex; flex-wrap: wrap; gap: 8px; }
.pick input { position: absolute; opacity: 0; }
.pick span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 10px; font-size: 1.3rem;
  border: 2px solid var(--line); background: var(--card); cursor: pointer;
}
.pick input:checked + span { border-color: var(--accent); background: var(--accent-soft); }
.swatch { border-radius: 50% !important; }
.sw-ember { background: var(--c-ember) !important; } .sw-ocean { background: var(--c-ocean) !important; }
.sw-forest { background: var(--c-forest) !important; } .sw-violet { background: var(--c-violet) !important; }
.sw-rose { background: var(--c-rose) !important; } .sw-gold { background: var(--c-gold) !important; }
.sw-teal { background: var(--c-teal) !important; } .sw-slate { background: var(--c-slate) !important; }

.preset-row { display: flex; flex-wrap: wrap; gap: 8px; margin: -6px 0 6px; }
.preset {
  font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink-soft);
  border-radius: 999px; padding: 5px 13px;
}
.preset:hover, .preset.active { border-color: var(--accent); color: var(--accent); }

/* ---- Flash ----------------------------------------------------------- */
.flash {
  margin: 14px 0; padding: 12px 16px; border-radius: 10px; font-weight: 500;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.flash-success { background: color-mix(in srgb, var(--success) 14%, var(--card)); border: 1px solid color-mix(in srgb, var(--success) 40%, transparent); }
.flash-error { background: color-mix(in srgb, var(--danger) 12%, var(--card)); border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent); }
.flash-x { background: none; border: 0; font-size: 1.2rem; cursor: pointer; color: var(--ink-soft); }

/* ---- Hero -------------------------------------------------------------- */
.hero { padding: 64px 0 56px; background: linear-gradient(180deg, var(--bg-alt), var(--bg)); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { font-size: 2.7rem; margin-bottom: 18px; }
@media (max-width: 560px) { .hero h1 { font-size: 2.1rem; } }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 10px; }
.hero-note { font-size: .88rem; color: var(--ink-soft); }

.demo-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px; max-width: 360px; margin: 0 auto;
}
.demo-head { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.demo-emoji { font-size: 1.8rem; }
.demo-sub { display: block; font-size: .82rem; color: var(--ink-soft); }
.demo-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-bottom: 14px; }
.demo-grid span {
  aspect-ratio: 1; border-radius: 7px; border: 1.5px solid var(--line);
  display: flex; align-items: center; justify-content: center; font-size: .7rem; color: var(--ink-soft);
}
.demo-grid span.d { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
.demo-grid span.m { background: var(--bg-alt); color: var(--danger); font-weight: 700; }
.demo-bar { height: 8px; border-radius: 99px; background: var(--bg-alt); overflow: hidden; }
.demo-fill { height: 100%; background: var(--accent); border-radius: 99px; }

/* ---- Cards / grids ------------------------------------------------------- */
.section-title { text-align: center; margin-bottom: 30px; font-size: 1.7rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 24px 0; }
@media (max-width: 860px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3 { grid-template-columns: 1fr; } }

.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.feature-emoji { font-size: 1.7rem; margin-bottom: 8px; }
.feature p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

.idea-card, .guide-card, .ch-card {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; color: var(--ink);
  transition: transform .12s ease, box-shadow .12s ease;
}
.idea-card:hover, .guide-card:hover, .ch-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); text-decoration: none; }
.idea-card { border-top: 4px solid var(--cc, var(--accent)); }
.idea-emoji { font-size: 1.9rem; display: block; margin-bottom: 8px; }
.idea-card p { color: var(--ink-soft); font-size: .92rem; margin: 0 0 10px; }
.idea-days {
  display: inline-block; font-size: .78rem; font-weight: 700; color: var(--cc, var(--accent));
  background: var(--cc-soft, var(--accent-soft)); border-radius: 999px; padding: 3px 10px;
}
.guide-card p { color: var(--ink-soft); font-size: .92rem; }
.guide-min { font-size: .8rem; font-weight: 600; color: var(--ink-soft); }
.cat-title { margin-top: 40px; }

/* Per-color helper class sets --cc/--cc-soft for children. */
.c-ember { --cc: var(--c-ember); --cc-soft: var(--c-ember-soft); }
.c-ocean { --cc: var(--c-ocean); --cc-soft: var(--c-ocean-soft); }
.c-forest { --cc: var(--c-forest); --cc-soft: var(--c-forest-soft); }
.c-violet { --cc: var(--c-violet); --cc-soft: var(--c-violet-soft); }
.c-rose { --cc: var(--c-rose); --cc-soft: var(--c-rose-soft); }
.c-gold { --cc: var(--c-gold); --cc-soft: var(--c-gold-soft); }
.c-teal { --cc: var(--c-teal); --cc-soft: var(--c-teal-soft); }
.c-slate { --cc: var(--c-slate); --cc-soft: var(--c-slate-soft); }

/* ---- Dashboard ------------------------------------------------------------ */
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; margin-bottom: 10px; }
.empty-state { text-align: center; padding: 60px 20px; }
.empty-emoji { font-size: 3rem; margin: 0; }
.ch-card-head { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.ch-card-head h3 { margin: 0; }
.ch-emoji { font-size: 1.6rem; }
.ch-card-stats { display: flex; gap: 12px; align-items: center; font-size: .92rem; margin-bottom: 10px; min-height: 24px; }
.streak { color: var(--cc, var(--accent)); font-weight: 700; }
.badge-done { font-weight: 700; font-size: .85rem; }
.bar { height: 9px; background: var(--bg-alt); border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--cc, var(--accent)); border-radius: 99px; transition: width .3s ease; }
.bar-big { height: 12px; margin: 14px 0 6px; }
.ch-card-foot { margin-top: 10px; font-size: .85rem; }
.ch-card-archived { opacity: .75; }
.archived-block { margin-top: 36px; }
.archived-block summary { cursor: pointer; font-weight: 600; color: var(--ink-soft); }

/* ---- Challenge page -------------------------------------------------------- */
.ch-title { display: flex; gap: 14px; align-items: center; }
.ch-emoji-big { font-size: 2.6rem; }
.ch-title h1 { margin-bottom: 2px; }
.ch-title p { margin: 0; }
.ch-actions { display: flex; gap: 8px; }
.ch-desc {
  background: var(--cc-soft, var(--accent-soft)); border-radius: 10px;
  padding: 12px 16px; margin: 14px 0; font-size: .95rem;
}
.share-banner {
  background: var(--cc-soft, var(--accent-soft)); border-radius: 10px;
  padding: 10px 16px; font-size: .95rem;
}
.stat-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }
.stat {
  flex: 1 1 100px; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 10px; text-align: center;
}
.stat-n { display: block; font-size: 1.5rem; font-weight: 800; color: var(--cc, var(--accent)); }
.stat-l { font-size: .78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; }
.cal-hint { font-size: .88rem; color: var(--ink-soft); margin: 18px 0 6px; }
.hint-done { color: var(--success); font-weight: 700; }
.hint-miss { color: var(--danger); font-weight: 700; }

.cal-months { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; margin: 18px 0; }
.cal-month h3 { text-align: center; margin-bottom: 10px; font-size: 1rem; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; }
.cal-dow { text-align: center; font-size: .7rem; font-weight: 700; color: var(--ink-soft); padding-bottom: 2px; }
.cal-day {
  position: relative; aspect-ratio: 1; border-radius: 9px; font: inherit;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink);
  font-size: .85rem; padding: 0;
}
button.cal-day { cursor: pointer; transition: transform .08s ease; }
button.cal-day:hover:not(:disabled) { transform: scale(1.08); border-color: var(--cc, var(--accent)); }
.cal-out { border: 0; background: transparent; color: var(--line); }
.cal-day.is-done { background: var(--cc, var(--accent)); border-color: var(--cc, var(--accent)); color: #fff; font-weight: 700; }
.cal-day.is-done .cal-num::after { content: " ✓"; font-size: .7em; }
.cal-day.is-miss { background: var(--bg-alt); color: var(--danger); font-weight: 700; }
.cal-day.is-miss .cal-num::after { content: " ✗"; font-size: .7em; }
.cal-day.is-today { outline: 2.5px solid var(--cc, var(--accent)); outline-offset: 2px; }
.cal-day.cal-future { opacity: .38; cursor: not-allowed; }
.cal-day.has-note::before {
  content: ""; position: absolute; top: 4px; right: 4px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--gold, #d9a406); background: var(--c-gold);
}
.ch-toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; align-items: center; }
.inline-form { display: inline; }

/* ---- Modals ------------------------------------------------------------------ */
.modal {
  position: fixed; inset: 0; background: rgba(10, 10, 14, .55); z-index: 60;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal[hidden] { display: none; }
.modal-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  max-width: 460px; width: 100%; padding: 26px; position: relative;
}
.modal-x { position: absolute; top: 10px; right: 14px; background: none; border: 0; font-size: 1.5rem; cursor: pointer; color: var(--ink-soft); }
.share-url { font-size: .88rem; margin-bottom: 10px; }
.share-forms { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.modal-card textarea { width: 100%; margin: 8px 0; }

/* ---- Badges -------------------------------------------------------------------- */
.badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin: 28px 0; }
.badge-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-align: center; }
.badge-emoji { font-size: 2.2rem; display: block; margin-bottom: 8px; }
.badge-card p { font-size: .85rem; color: var(--ink-soft); margin: 0; }
.badge-earned { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.badge-locked { opacity: .55; filter: grayscale(.4); }

/* ---- Panels / misc --------------------------------------------------------------- */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 24px 0; }
.panel-danger { border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); }
.panel-danger h2 { color: var(--danger); }
.cta-panel {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
  background: var(--cc-soft, var(--accent-soft)); border-radius: var(--radius);
  padding: 20px; margin: 26px 0;
}
.rules-list li, .tips-list li { margin-bottom: 8px; }
.error-code { font-size: 3.4rem; font-weight: 800; color: var(--line); margin: 0; }
.prose h2 { margin-top: 1.6em; }
.prose ul li, .prose ol li { margin-bottom: 6px; }

.table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: .92rem; }
.table th, .table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); }
.row-disabled { opacity: .5; }
.pager { display: flex; gap: 8px; }
.admin-nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.search-form { display: flex; gap: 8px; margin-bottom: 8px; }
.search-form input { max-width: 300px; }

.mini-chart { display: flex; gap: 6px; align-items: flex-end; height: 120px; margin: 16px 0 30px; }
.mini-bar { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; text-align: center; }
.mini-fill { background: var(--accent); border-radius: 4px 4px 0 0; min-height: 2px; }
.mini-label { font-size: .68rem; color: var(--ink-soft); margin-top: 4px; }

/* ---- Quiz --------------------------------------------------------------------------- */
.quiz-opts { display: grid; gap: 10px; margin: 18px 0 8px; }
.quiz-opt {
  font: inherit; text-align: left; padding: 14px 18px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer;
  font-weight: 600;
}
.quiz-opt:hover { border-color: var(--accent); }
.quiz-result { margin-top: 10px; }

/* ---- Footer ---------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 40px 0 24px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h3 { font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); }
.footer-grid a { display: block; color: var(--ink); padding: 3px 0; font-size: .93rem; }
.footer-tag { color: var(--ink-soft); font-size: .9rem; }
.brand-footer { margin-bottom: 8px; }
.footer-legal { margin-top: 28px; font-size: .82rem; color: var(--ink-soft); }

/* ---- Printable sheet ---------------------------------------------------------------------- */
.print-sheet { background: #fff; color: #1c1c20; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; margin: 26px auto; max-width: 800px; }
.print-sheet .ps-title { text-align: center; font-size: 1.9rem; font-weight: 800; margin: 0 0 4px; letter-spacing: -.02em; }
.print-sheet .ps-sub { text-align: center; color: #666; margin: 0 0 24px; font-size: .95rem; }
.print-sheet .ps-months { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 26px; }
.print-sheet .ps-month h3 { text-align: center; font-size: 1rem; margin-bottom: 8px; }
.print-sheet .ps-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.print-sheet .ps-dow { text-align: center; font-size: .68rem; font-weight: 700; color: #999; }
.print-sheet .ps-day { aspect-ratio: 1; border: 1.5px solid #ccc; border-radius: 7px; position: relative; }
.print-sheet .ps-day .n { position: absolute; top: 3px; left: 6px; font-size: .68rem; color: #999; }
.print-sheet .ps-day .dn { position: absolute; bottom: 3px; right: 6px; font-size: .6rem; color: #bbb; }
.print-sheet .ps-out { border: 0; }
.print-sheet .ps-foot { text-align: center; color: #999; font-size: .8rem; margin-top: 22px; }

@media print {
  .no-print, .site-header, .site-footer, .flash { display: none !important; }
  body { background: #fff; }
  .print-sheet { border: 0; margin: 0; padding: 0; max-width: none; border-radius: 0; }
  .section { padding: 0; }
  @page { margin: 1.2cm; }
}