:root{
  --bg:#f4f6fb;
  --surface:#ffffff;
  --surface-soft:#f8fafc;
  --ink:#101828;
  --muted:#667085;
  --line:#e4e7ec;
  --primary:#4f46e5;
  --primary-dark:#3730a3;
  --success:#15803d;
  --warning:#b45309;
  --danger:#be123c;
  --shadow:0 18px 60px rgba(16,24,40,.08);
  --shadow-soft:0 8px 30px rgba(16,24,40,.06);
  --radius-xl:26px;
  --radius-lg:20px;
  --radius-md:15px;
  --radius-sm:11px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(circle at 8% 0%,rgba(79,70,229,.10),transparent 30rem),
    radial-gradient(circle at 96% 100%,rgba(14,165,233,.09),transparent 28rem),
    var(--bg);
  color:var(--ink);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
}
button,input,select{font:inherit}
button{border:0;cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible{
  outline:3px solid rgba(79,70,229,.24);
  outline-offset:3px;
}
[hidden]{display:none!important}

.app-shell{min-height:100vh;padding-bottom:96px}
.topbar{
  position:sticky;
  top:0;
  z-index:40;
  border-bottom:1px solid rgba(228,231,236,.86);
  background:rgba(244,246,251,.86);
  backdrop-filter:blur(20px);
}
.topbar__inner{
  width:min(100%,1380px);
  min-height:72px;
  margin:auto;
  padding:10px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  padding:0;
  background:transparent;
  color:inherit;
  text-align:left;
}
.brand__mark{
  width:44px;
  height:44px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:linear-gradient(145deg,#111827,#4338ca 60%,#06b6d4);
  color:#fff;
  font-weight:900;
  letter-spacing:-.06em;
  box-shadow:0 14px 30px rgba(67,56,202,.22);
}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text strong{font-size:16px;letter-spacing:-.04em}
.brand__text small{margin-top:4px;color:var(--muted);font-size:10px;font-weight:800}
.desktop-nav{display:none;align-items:center;gap:4px;padding:4px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.74)}
.desktop-nav button{min-height:34px;padding:0 13px;border-radius:9px;background:transparent;color:#667085;font-size:10px;font-weight:900}
.desktop-nav button.is-active{background:#111827;color:#fff;box-shadow:0 5px 13px rgba(16,24,40,.12)}
.topbar__actions{display:flex;align-items:center;gap:10px}
.save-indicator{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:32px;
  padding:0 10px;
  border:1px solid #d1fadf;
  border-radius:999px;
  background:#ecfdf3;
  color:#067647;
  font-size:11px;
  font-weight:800;
  white-space:nowrap;
}
.save-indicator.is-saving{border-color:#fedf89;background:#fffaeb;color:#b54708}
.save-indicator__dot{width:7px;height:7px;border-radius:50%;background:currentColor}

.workspace{
  width:min(100%,1380px);
  margin:auto;
  padding:24px 18px 54px;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:22px;
}
.editor-pane{min-width:0}
.preview-pane{min-width:0}
.page-intro{
  margin-bottom:18px;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
}
.page-intro__eyebrow,.kicker{
  display:block;
  color:var(--primary);
  font-size:10px;
  line-height:1.2;
  font-weight:900;
  letter-spacing:.13em;
  text-transform:uppercase;
}
.page-intro h1{
  max-width:680px;
  margin:7px 0 7px;
  font-family:"DM Serif Display",Georgia,serif;
  font-size:clamp(34px,5vw,54px);
  font-weight:400;
  line-height:.98;
  letter-spacing:-.04em;
}
.page-intro p{
  max-width:680px;
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
  font-weight:500;
}

.app-page{display:none;animation:pageIn .2s ease}
.app-page.is-active{display:block}
@keyframes pageIn{from{opacity:.5;transform:translateY(6px)}to{opacity:1;transform:none}}

.card{
  border:1px solid rgba(228,231,236,.92);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-soft);
}
.welcome-card{
  position:relative;
  overflow:hidden;
  margin-bottom:16px;
  padding:20px;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:14px;
  background:linear-gradient(135deg,#111827,#312e81 60%,#0e7490);
  color:#fff;
}
.welcome-card:after{
  content:"";
  position:absolute;
  width:180px;
  height:180px;
  right:-76px;
  top:-86px;
  border:30px solid rgba(255,255,255,.07);
  border-radius:50%;
}
.welcome-card .kicker{color:#a5b4fc}
.welcome-card__icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(255,255,255,.13);font-size:20px
}
.welcome-card h2{margin:5px 0 6px;font-size:21px;line-height:1.2;letter-spacing:-.04em}
.welcome-card p{margin:0;color:rgba(255,255,255,.72);font-size:13px;line-height:1.55}
.welcome-card__actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:9px}
.welcome-card .button--ghost{border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff}

.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:14px}
.stat-card{padding:14px 15px}
.stat-card span{display:block;color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.stat-card strong{display:block;margin-top:5px;font-size:21px;letter-spacing:-.05em}
.stat-card small{display:block;margin-top:3px;color:#98a2b3;font-size:10px;font-weight:700}

.notice{
  margin-bottom:14px;
  padding:13px 14px;
  border:1px solid #fedf89;
  border-radius:var(--radius-md);
  background:#fffaeb;
  color:#93370d;
  font-size:12px;
  line-height:1.5;
  font-weight:700;
}
.notice.is-danger{border-color:#fecdca;background:#fef3f2;color:#b42318}
.notice.is-good{border-color:#abefc6;background:#ecfdf3;color:#067647}

.section-heading,.card-heading,.sessions-heading{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:15px;
}
.section-heading{margin:25px 0 12px}
.section-heading h2,.card-heading h2,.sessions-heading h3{
  margin:5px 0 0;
  letter-spacing:-.045em;
}
.section-heading h2,.card-heading h2{font-size:21px}
.sessions-heading h3{font-size:18px}
.section-heading p,.card-heading p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.5}

.button{
  min-height:44px;
  padding:0 14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:13px;
  font-size:12px;
  font-weight:900;
  text-decoration:none;
  transition:transform .14s ease,box-shadow .14s ease,background .14s ease;
}
.button:active{transform:scale(.98)}
.button--primary{background:linear-gradient(145deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 12px 25px rgba(79,70,229,.22)}
.button--secondary{background:#fff;color:#1d2939;box-shadow:0 7px 20px rgba(16,24,40,.12)}
.button--ghost{border:1px solid var(--line);background:#fff;color:#344054}
.button--warning{background:#f79009;color:#fff}
.button--danger-soft{border:1px solid #fecdca;background:#fff1f3;color:var(--danger)}
.button--compact{min-height:36px;padding:0 11px;font-size:11px}
.button--large{min-height:54px;padding:0 20px;font-size:14px}
.button--full{width:100%}
.button-grid{display:grid;grid-template-columns:1fr;gap:10px}
.file-button{position:relative;overflow:hidden}
.file-button input{position:absolute;inset:0;opacity:0;cursor:pointer}

.subject-list{display:grid;gap:11px}
.empty-state{
  padding:34px 20px;
  text-align:center;
}
.empty-state__icon{width:52px;height:52px;margin:0 auto 12px;border-radius:17px;display:grid;place-items:center;background:#eef2ff;color:var(--primary);font-size:24px;font-weight:900}
.empty-state h3{margin:0 0 6px;font-size:17px;letter-spacing:-.03em}
.empty-state p{max-width:420px;margin:0 auto 15px;color:var(--muted);font-size:12px;line-height:1.55}
.subject-card{
  width:100%;
  padding:14px;
  display:grid;
  grid-template-columns:12px minmax(0,1fr) auto;
  align-items:center;
  gap:12px;
  text-align:left;
  color:inherit;
}
.subject-card:hover{border-color:#c7d7fe;box-shadow:0 12px 35px rgba(79,70,229,.08)}
.subject-card__color{width:10px;height:100%;min-height:58px;border-radius:999px}
.subject-card__main{min-width:0}
.subject-card__title{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.subject-card__title strong{font-size:14px;letter-spacing:-.02em}
.subject-card__title span{color:var(--muted);font-size:11px;font-weight:700}
.subject-card__sessions{margin-top:7px;display:flex;flex-wrap:wrap;gap:6px}
.session-chip{
  display:inline-flex;align-items:center;gap:5px;min-height:27px;padding:0 8px;border:1px solid var(--line);border-radius:999px;background:var(--surface-soft);color:#475467;font-size:10px;font-weight:800
}
.subject-card__meta{text-align:right}
.subject-card__meta strong{display:block;font-size:12px}
.subject-card__meta span{display:block;margin-top:3px;color:var(--muted);font-size:10px;font-weight:700}
.subject-card__edit{margin-left:5px;color:var(--primary);font-weight:900}

.form-card{margin-bottom:13px;padding:17px}
.form-grid{display:grid;grid-template-columns:1fr;gap:11px;margin-top:14px}
.field{display:block}
.field>span,.color-fieldset legend{
  display:block;
  margin-bottom:7px;
  color:#475467;
  font-size:11px;
  font-weight:900;
}
.field em{color:#98a2b3;font-style:normal;font-weight:700}
.field input,.field select,.session-field input,.session-field select{
  width:100%;
  min-height:46px;
  padding:0 12px;
  border:1px solid #d0d5dd;
  border-radius:12px;
  background:#fff;
  color:var(--ink);
  font-weight:700;
}
.field input:focus,.field select:focus,.session-field input:focus,.session-field select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.09);outline:none}
.helper-text{color:var(--muted);font-size:10px;font-weight:800}
.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:14px}
.choice-card{
  min-height:95px;
  padding:12px;
  border:1px solid var(--line);
  border-radius:15px;
  background:#fff;
  color:inherit;
  text-align:left;
}
.choice-card.is-active{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.11)}
.choice-card__icon{font-size:22px}
.choice-card strong{display:block;margin-top:7px;font-size:12px}
.choice-card small{display:block;margin-top:3px;color:var(--muted);font-size:9px;font-weight:700}

.theme-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}
.theme-card{
  position:relative;
  overflow:hidden;
  min-height:108px;
  padding:11px;
  border:1px solid var(--line);
  border-radius:16px;
  color:inherit;
  text-align:left;
}
.theme-card.is-active{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.11)}
.theme-card__preview{height:55px;border-radius:10px;padding:8px;display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.theme-card__preview span{border-radius:5px}
.theme-card strong{display:block;margin-top:7px;font-size:11px}
.theme-card small{display:block;margin-top:2px;color:var(--muted);font-size:9px;font-weight:700}

.settings-stack{margin-top:10px}
.setting-row{padding:15px 0;border-top:1px solid var(--line);display:grid;gap:12px}
.setting-row:first-child{border-top:0}
.setting-row>div:first-child strong{display:block;font-size:12px}
.setting-row>div:first-child span{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.45;font-weight:600}
.segmented{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:4px;border:1px solid var(--line);border-radius:13px;background:#f8fafc}
.segmented--three{grid-template-columns:repeat(3,1fr)}
.segmented button{min-height:37px;border-radius:9px;background:transparent;color:#667085;font-size:9px;font-weight:900}
.segmented button.is-active{background:#111827;color:#fff;box-shadow:0 4px 12px rgba(16,24,40,.12)}
.switch-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.switch{display:flex;align-items:center;gap:8px;color:#475467;font-size:10px;font-weight:800;cursor:pointer}
.switch input{position:absolute;opacity:0}
.switch>span{position:relative;width:34px;height:20px;border-radius:999px;background:#d0d5dd;transition:.2s}
.switch>span:after{content:"";position:absolute;width:14px;height:14px;left:3px;top:3px;border-radius:50%;background:#fff;box-shadow:0 1px 4px rgba(16,24,40,.25);transition:.2s}
.switch input:checked+span{background:var(--primary)}
.switch input:checked+span:after{transform:translateX(14px)}
.advanced-toggle{width:100%;padding:0;background:transparent;color:inherit;display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left}
.advanced-toggle strong{display:block;font-size:12px}
.advanced-toggle small{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.4}
.advanced-panel{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}

.export-hero{padding:22px;background:linear-gradient(145deg,#111827,#312e81 63%,#155e75);color:#fff}
.export-hero .kicker{color:#a5b4fc}
.export-hero h2{max-width:570px;margin:8px 0 7px;font-family:"DM Serif Display",Georgia,serif;font-size:34px;font-weight:400;line-height:1;letter-spacing:-.04em}
.export-hero p{margin:0;color:rgba(255,255,255,.72);font-size:12px;line-height:1.55}
.export-actions{display:grid;grid-template-columns:1fr;gap:9px;margin-top:18px}
.export-options{margin-top:13px;padding:18px}
.quality-card{margin-top:13px;padding:16px;display:flex;gap:12px;align-items:center}
.quality-card__icon{width:42px;height:42px;flex:0 0 auto;border-radius:14px;display:grid;place-items:center;background:#dcfae6;color:#067647;font-size:18px;font-weight:900}
.quality-card strong{display:block;font-size:13px}
.quality-card p{margin:4px 0 0;color:var(--muted);font-size:10px;line-height:1.45}

.preview-card{
  padding:14px;
  border:1px solid rgba(228,231,236,.92);
  border-radius:var(--radius-xl);
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow);
}
.preview-card__header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.preview-card__header h2{margin:4px 0 0;font-size:16px;letter-spacing:-.04em}
.preview-mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:3px;border:1px solid var(--line);border-radius:10px;background:#f8fafc}
.preview-mode-switch button{min-height:29px;padding:0 8px;border-radius:7px;background:transparent;color:var(--muted);font-size:8px;font-weight:900}
.preview-mode-switch button.is-active{background:#111827;color:#fff}
.preview-viewport{
  position:relative;
  overflow:hidden;
  min-height:610px;
  padding:18px;
  display:grid;
  place-items:center;
  border:1px solid #dbe3ef;
  border-radius:20px;
  background:
    radial-gradient(circle at top,rgba(99,102,241,.15),transparent 25rem),
    linear-gradient(180deg,#eef2ff,#f8fafc);
}
.device-preview{
  position:relative;
  width:304px;
  height:658px;
  padding:8px;
  border:4px solid #121826;
  border-radius:42px;
  background:#121826;
  box-shadow:0 30px 70px rgba(15,23,42,.28);
  overflow:hidden;
  transform-origin:center;
}
.device-preview.is-canvas{
  width:304px;
  padding:0;
  border:0;
  border-radius:17px;
  background:transparent;
  box-shadow:0 22px 55px rgba(15,23,42,.18);
}
.device-preview.is-a4{border-radius:18px;border-width:2px;background:#e5e7eb}
.device-preview__speaker{position:absolute;z-index:5;width:88px;height:24px;left:50%;top:13px;transform:translateX(-50%);border-radius:999px;background:#05070b}
.device-preview.is-canvas .device-preview__speaker,.device-preview.is-a4 .device-preview__speaker{display:none}
.canvas-mount{position:absolute;inset:8px;border-radius:32px;overflow:hidden;background:#fff}
.device-preview.is-canvas .canvas-mount{inset:0;border-radius:17px}
.device-preview.is-a4 .canvas-mount{border-radius:12px}
.device-preview__home{position:absolute;z-index:6;bottom:15px;left:50%;width:105px;height:4px;transform:translateX(-50%);border-radius:999px;background:rgba(255,255,255,.85)}
.device-preview.is-canvas .device-preview__home,.device-preview.is-a4 .device-preview__home{display:none}
.lock-overlay{position:absolute;z-index:4;top:48px;left:18px;right:18px;text-align:center;color:#fff;text-shadow:0 2px 12px rgba(15,23,42,.45);pointer-events:none}
.lock-overlay span{font-size:8px;font-weight:800;letter-spacing:.05em}
.lock-overlay strong{display:block;margin-top:2px;font-size:45px;line-height:1;font-weight:500;letter-spacing:-.07em}
.lock-widgets{display:flex;justify-content:center;gap:7px;margin-top:10px}
.lock-widgets span{min-height:25px;padding:0 9px;display:inline-flex;align-items:center;border-radius:999px;background:rgba(15,23,42,.28);backdrop-filter:blur(10px);font-size:8px}
.device-preview.is-canvas .lock-overlay,.device-preview.is-a4 .lock-overlay{display:none}
.preview-hint{margin-top:11px;padding:10px 12px;border-radius:12px;background:#f8fafc;color:var(--muted);font-size:10px;line-height:1.45;font-weight:700;text-align:center}

/* Wallpaper canvas: one renderer for preview and export */
.wallpaper-canvas{
  position:relative;
  width:390px;
  overflow:hidden;
  color:var(--wallpaper-ink,#172033);
  font-family:Inter,system-ui,sans-serif;
  isolation:isolate;
}
.wallpaper-canvas:before,.wallpaper-canvas:after{content:"";position:absolute;border-radius:50%;pointer-events:none;z-index:-1}
.wallpaper-canvas:before{width:270px;height:270px;right:-120px;top:-80px;background:var(--orb-one,rgba(79,70,229,.16));filter:blur(2px)}
.wallpaper-canvas:after{width:230px;height:230px;left:-115px;bottom:-80px;background:var(--orb-two,rgba(14,165,233,.13));filter:blur(2px)}
.wallpaper-inner{position:absolute;left:16px;right:16px;bottom:38px}
.wallpaper-canvas.is-a4 .wallpaper-inner{top:30px!important;bottom:32px}
.wallpaper-meta{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin-bottom:9px;color:var(--wallpaper-muted,#667085)}
.wallpaper-meta__identity{min-width:0}
.wallpaper-meta__identity strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--wallpaper-ink,#172033);font-family:"DM Serif Display",Georgia,serif;font-size:16px;font-weight:400;letter-spacing:-.035em}
.wallpaper-meta__identity span{display:block;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:6.5px;font-weight:800;letter-spacing:.02em}
.wallpaper-meta__stats{text-align:right;font-size:5.6px;line-height:1.45;font-weight:900;text-transform:uppercase;letter-spacing:.05em}
.wallpaper-title{margin-bottom:7px;color:var(--wallpaper-accent,#4f46e5);font-size:6px;font-weight:900;letter-spacing:.10em;text-transform:uppercase}
.schedule-board{position:relative;overflow:hidden;border:1px solid var(--board-line,rgba(15,23,42,.14));border-radius:11px;background:var(--board-bg,rgba(255,255,255,.82));box-shadow:0 12px 40px var(--board-shadow,rgba(15,23,42,.10));backdrop-filter:blur(10px)}
.schedule-days{height:24px;margin-left:34px;display:grid;border-bottom:1px solid var(--board-line,rgba(15,23,42,.14));background:var(--header-bg,#172033);color:var(--header-ink,#fff)}
.schedule-day{display:grid;place-items:center;border-left:1px solid rgba(255,255,255,.12);font-size:5.4px;font-weight:900;letter-spacing:.04em;text-transform:uppercase}
.schedule-body{position:relative;margin-left:34px}
.time-axis{position:absolute;left:-34px;top:0;width:34px;height:100%;background:var(--axis-bg,rgba(238,242,255,.86));border-right:1px solid var(--board-line,rgba(15,23,42,.14))}
.time-label{position:absolute;left:0;width:100%;transform:translateY(-50%);padding-right:5px;color:var(--axis-ink,#475467);font-size:4.8px;line-height:1;text-align:right;font-weight:900}
.grid-layer,.events-layer{position:absolute;inset:0}
.grid-line{position:absolute;left:0;right:0;border-top:1px solid var(--grid-line,rgba(15,23,42,.075))}
.grid-line.is-hour{border-top-color:var(--grid-hour,rgba(15,23,42,.15))}
.day-divider{position:absolute;top:0;bottom:0;border-left:1px solid var(--grid-hour,rgba(15,23,42,.13))}
.event-card{position:absolute;overflow:hidden;padding:3px;border:1px solid var(--event-border,rgba(15,23,42,.10));border-radius:5px;color:var(--event-text,#162033);box-shadow:0 2px 7px rgba(15,23,42,.08)}
.event-card.is-conflict{outline:1.5px solid #e11d48;outline-offset:-1px}
.event-card strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:5.7px;line-height:1.14;letter-spacing:-.02em}
.event-card span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:1px;font-size:4.4px;line-height:1.12;font-weight:700;opacity:.79}
.wallpaper-canvas[data-density="compact"] .event-card{padding:2px}
.wallpaper-canvas[data-density="compact"] .event-card strong{font-size:5.1px}
.wallpaper-canvas[data-density="compact"] .event-card span{font-size:3.9px}
.wallpaper-canvas[data-density="spacious"] .event-card{padding:3.4px}
.wallpaper-canvas[data-density="spacious"] .event-card strong{font-size:6.1px}
.wallpaper-canvas[data-density="spacious"] .event-card span{font-size:4.7px}
.wallpaper-brand{position:absolute;left:16px;right:16px;bottom:16px;display:flex;align-items:center;gap:8px;color:var(--wallpaper-muted,#667085);font-size:5px;font-weight:900;letter-spacing:.05em;text-transform:uppercase}
.wallpaper-brand:before,.wallpaper-brand:after{content:"";height:1px;flex:1;background:var(--board-line,rgba(15,23,42,.14))}
.wallpaper-canvas.is-a4 .wallpaper-meta__identity strong{font-size:18px}
.wallpaper-canvas.is-a4 .event-card strong{font-size:6.3px}
.wallpaper-canvas.is-a4 .event-card span{font-size:4.9px}

.modal{position:fixed;inset:0;z-index:100;display:none;align-items:flex-end;justify-content:center}
.modal.is-open{display:flex}
.modal__backdrop{position:absolute;inset:0;background:rgba(16,24,40,.54);backdrop-filter:blur(4px)}
.sheet{position:relative;width:min(760px,100%);max-height:94vh;display:flex;flex-direction:column;border-radius:26px 26px 0 0;background:#fff;box-shadow:0 -30px 70px rgba(16,24,40,.22);animation:sheetIn .22s ease}
.sheet--small{width:min(520px,100%)}
@keyframes sheetIn{from{transform:translateY(18px);opacity:.4}to{transform:none;opacity:1}}
.sheet__header{padding:17px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line)}
.sheet__header h2{margin:4px 0 0;font-size:20px;letter-spacing:-.045em}
.sheet__body{padding:18px;overflow:auto}
.sheet__footer{padding:13px 18px calc(13px + env(safe-area-inset-bottom));display:flex;align-items:center;gap:8px;border-top:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(18px)}
.sheet__footer-spacer{flex:1}
.icon-button{width:38px;height:38px;border-radius:12px;background:#f2f4f7;color:#344054;font-size:24px;line-height:1}
.validation-message{margin-bottom:12px;padding:11px 12px;border:1px solid #fecdca;border-radius:12px;background:#fef3f2;color:#b42318;font-size:11px;line-height:1.5;font-weight:800}
.color-fieldset{margin:16px 0 18px;padding:0;border:0}
.subject-color-grid{display:flex;flex-wrap:wrap;gap:9px}
.color-option{width:37px;height:37px;border:4px solid #fff;border-radius:12px;box-shadow:0 0 0 1px var(--line)}
.color-option.is-active{box-shadow:0 0 0 3px rgba(79,70,229,.22)}
.sessions-heading{margin:5px 0 10px}
.session-editor-list{display:grid;gap:10px}
.session-editor{position:relative;padding:13px;border:1px solid var(--line);border-radius:15px;background:#f8fafc}
.session-editor__top{margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.session-editor__top strong{font-size:11px}
.remove-session-button{width:31px;height:31px;border-radius:10px;background:#fff1f3;color:var(--danger);font-size:16px;font-weight:900}
.session-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.session-field{display:block}
.session-field span{display:block;margin-bottom:5px;color:#667085;font-size:9px;font-weight:900}
.session-field--wide{grid-column:1/-1}
.help-steps{display:grid;gap:12px}
.help-steps article{padding:13px;border:1px solid var(--line);border-radius:15px;display:flex;gap:11px}
.help-steps article>span{width:34px;height:34px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;background:#eef2ff;color:var(--primary);font-weight:900}
.help-steps strong{font-size:12px}
.help-steps p{margin:4px 0 0;color:var(--muted);font-size:10px;line-height:1.5}

.bottom-nav{
  position:fixed;
  z-index:60;
  left:50%;
  bottom:10px;
  transform:translateX(-50%);
  width:min(520px,calc(100% - 22px));
  padding:7px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:5px;
  border:1px solid rgba(228,231,236,.92);
  border-radius:20px;
  background:rgba(255,255,255,.94);
  box-shadow:0 18px 46px rgba(16,24,40,.16);
  backdrop-filter:blur(20px);
}
.bottom-nav button{min-height:52px;border-radius:14px;background:transparent;color:#667085;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px}
.bottom-nav button span{font-size:16px;line-height:1}
.bottom-nav button small{font-size:9px;font-weight:900}
.bottom-nav button.is-active{background:#111827;color:#fff}
.toast{position:fixed;z-index:200;left:50%;bottom:82px;max-width:calc(100% - 30px);padding:11px 14px;border-radius:13px;background:#111827;color:#fff;font-size:11px;line-height:1.35;font-weight:800;text-align:center;opacity:0;transform:translate(-50%,14px);pointer-events:none;transition:.2s}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}
.export-host{position:fixed;left:-99999px;top:0;overflow:hidden}
.desktop-only{display:none}

@media(min-width:680px){
  .topbar__inner,.workspace{padding-left:24px;padding-right:24px}
  .stats-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .form-grid--two{grid-template-columns:repeat(2,minmax(0,1fr))}
  .form-grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}
  .field--wide{grid-column:1/-1}
  .choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .theme-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .setting-row{grid-template-columns:minmax(0,1fr) minmax(290px,.9fr);align-items:center}
  .export-actions,.button-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .button-grid .button--danger-soft{grid-column:1/-1}
  .session-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .session-field--wide{grid-column:span 2}
  .sheet{align-self:center;border-radius:26px;max-height:min(860px,92vh)}
}

@media(min-width:1040px){
  .app-shell{padding-bottom:30px}
  .workspace{grid-template-columns:minmax(0,1fr) 470px;align-items:start;gap:26px;padding-top:30px}
  .preview-pane{position:sticky;top:98px}
  .preview-viewport{min-height:690px}
  .device-preview{width:318px;height:688px}
  .bottom-nav{position:sticky;bottom:auto;left:auto;transform:none;width:fit-content;margin:0 auto 24px;order:-1;display:none}
  .desktop-only{display:inline-flex}
  .desktop-nav{display:flex}
  .page-intro{margin-bottom:22px}
  .theme-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}

@media(max-width:420px){
  .topbar__inner{padding-inline:13px}
  .workspace{padding-inline:13px;padding-top:18px}
  .page-intro{align-items:flex-start}
  .page-intro .button{display:none}
  .page-intro h1{font-size:35px}
  .section-heading{align-items:flex-start;flex-direction:column}
  .section-heading .button{width:100%}
  .subject-card{grid-template-columns:10px minmax(0,1fr)}
  .subject-card__meta{grid-column:2;text-align:left;display:flex;align-items:center;gap:8px}
  .preview-card{padding:11px}
  .preview-viewport{min-height:570px;padding:8px}
  .device-preview{transform:scale(.86)}
  .sheet__footer{flex-wrap:wrap}
  .sheet__footer-spacer{display:none}
  .sheet__footer .button{flex:1}
  .sheet__footer .button--danger-soft{flex-basis:100%}
}