:root {
  --bg: #080d19;
  --bg-2: #0c1426;
  --panel: rgba(17, 27, 48, 0.82);
  --panel-solid: #111b30;
  --panel-2: rgba(22, 35, 61, 0.72);
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);
  --text: #e9f0ff;
  --muted: #93a4c3;
  --faint: #64748b;
  --accent: #6ee7f9;
  --accent-2: #a7f3d0;
  --accent-3: #fbbf24;
  --danger: #fb7185;
  --violet: #c4b5fd;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 22px;
  --radius-sm: 14px;
  --mono: "SFMono-Regular", "Cascadia Code", "Consolas", "Liberation Mono", monospace;
  --sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}

[data-theme="light"] {
  --bg: #f4f7fc;
  --bg-2: #eaf0f9;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-solid: #ffffff;
  --panel-2: rgba(244, 248, 255, 0.92);
  --line: rgba(15, 23, 42, 0.1);
  --line-strong: rgba(15, 23, 42, 0.2);
  --text: #0f172a;
  --muted: #52627a;
  --faint: #7c8aa0;
  --accent: #0891b2;
  --accent-2: #047857;
  --accent-3: #b45309;
  --danger: #e11d48;
  --violet: #6d28d9;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.modal-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
code, pre { font-family: var(--mono); }

/* ---------- background ---------- */
.bg-orb {
  position: fixed;
  z-index: -3;
  width: 56vw;
  height: 56vw;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.24;
  pointer-events: none;
}
.bg-orb-a { top: -26vw; left: -16vw; background: radial-gradient(circle, #2563eb, transparent 68%); }
.bg-orb-b { bottom: -30vw; right: -20vw; background: radial-gradient(circle, #0d9488, transparent 68%); opacity: 0.18; }
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 76%);
}
[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.045) 1px, transparent 1px);
}

/* ---------- topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 26px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 26px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(8, 13, 25, 0.92), rgba(8, 13, 25, 0.55));
  border-bottom: 1px solid var(--line);
}
[data-theme="light"] .topbar {
  background: linear-gradient(180deg, rgba(244, 247, 252, 0.94), rgba(244, 247, 252, 0.66));
}
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #3b82f6 55%, var(--violet));
  color: #06121d;
  font-weight: 900;
  font-size: 21px;
  box-shadow: 0 8px 26px rgba(110, 231, 249, 0.22);
}
.brand-text { font-weight: 800; letter-spacing: 0.02em; font-size: 18px; }
.brand-text em { font-style: normal; color: var(--accent); }
.nav { display: flex; align-items: center; gap: 4px; flex: 1 1 auto; }
.nav a {
  position: relative;
  padding: 8px 13px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.18s ease, background 0.18s ease;
}
.nav a:hover { color: var(--text); background: var(--panel-2); }
.nav a.active { color: var(--text); background: var(--panel-2); }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.nav-count {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 18px;
  padding: 0 6px;
  margin-left: 2px;
  border-radius: 999px;
  background: rgba(110, 231, 249, 0.14);
  color: var(--accent);
  font-size: 11px;
  font-family: var(--mono);
}
.top-actions { display: flex; align-items: center; gap: 10px; }
.top-badge {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
  white-space: nowrap;
}
.icon-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 17px;
  transition: 0.18s ease;
}
.icon-btn:hover { color: var(--text); border-color: var(--line-strong); transform: translateY(-1px); }

/* ---------- layout ---------- */
.wrap { max-width: 1240px; margin: 0 auto; padding: 34px 26px 80px; }
.view { animation: rise 0.35s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.muted { color: var(--muted); }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin: 14px 0 26px;
}
.section-head h1 { font-size: clamp(28px, 4vw, 46px); line-height: 1.1; letter-spacing: -0.03em; margin: 6px 0 10px; }
.section-head p { max-width: 720px; }
.submit-hint {
  margin-top: 10px;
  padding: 9px 13px;
  border: 1px solid rgba(251, 191, 36, 0.26);
  border-radius: 10px;
  background: rgba(251, 191, 36, 0.06);
  color: var(--accent-3);
  font-size: 12.5px;
  max-width: 760px;
}
.head-progress { text-align: right; flex: 0 0 auto; }
.head-progress strong { display: block; font-family: var(--mono); font-size: 32px; line-height: 1; color: var(--accent); }
.head-progress span { color: var(--muted); font-size: 12px; }
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.section-subhead { margin: 40px 0 16px; }
.section-subhead h2 { font-size: 22px; letter-spacing: -0.02em; margin-bottom: 6px; }

/* ---------- buttons / chips ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #60a5fa);
  color: #06121d;
  box-shadow: 0 10px 30px rgba(96, 165, 250, 0.22);
}
.btn.ghost { background: var(--panel-2); border-color: var(--line); color: var(--text); }
.btn.ghost:hover { border-color: var(--line-strong); }
.btn.small { min-height: 34px; padding: 0 12px; font-size: 12px; border-radius: 9px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}
.chip b { color: var(--text); font-weight: 700; }
.chip-problem { cursor: pointer; transition: 0.16s ease; }
.chip-problem:hover { border-color: var(--accent); color: var(--text); transform: translateY(-1px); }
.chip-classic:hover { border-color: var(--accent-3); color: var(--text); }
.chip-classic { color: var(--accent-3); border-color: rgba(251, 191, 36, 0.24); background: rgba(251, 191, 36, 0.055); }
.chip-classic b { color: var(--text); }
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.chip.classic .dot { background: var(--accent-3); }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: 34px;
  padding: 38px 40px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(800px 300px at 12% -10%, rgba(37, 99, 235, 0.22), transparent 60%),
    radial-gradient(600px 320px at 100% 110%, rgba(13, 148, 136, 0.16), transparent 60%),
    var(--panel);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(120deg, transparent 0 46%, rgba(110, 231, 249, 0.06) 46% 47%, transparent 47% 100%);
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 1; }
.hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(38px, 5.3vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.055em;
  font-weight: 900;
}
.grad {
  background: linear-gradient(100deg, var(--accent) 0%, #93c5fd 42%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { max-width: 590px; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0 20px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-progress { display: flex; flex-direction: column; justify-content: center; align-items: center; position: relative; z-index: 1; }
.ring-wrap { position: relative; width: 170px; height: 170px; }
.ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--line); stroke-width: 10; }
.ring-fill {
  fill: none;
  stroke: url(#none);
  stroke: var(--accent);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 364.42;
  stroke-dashoffset: 364.42;
  transition: stroke-dashoffset 0.55s cubic-bezier(0.2, 0.8, 0.2, 1);
  filter: drop-shadow(0 0 10px rgba(110, 231, 249, 0.35));
}
.ring-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.ring-center strong { font-family: var(--mono); font-size: 36px; line-height: 1; }
.ring-center span { color: var(--muted); font-size: 12px; margin-top: 5px; }
.ring-meta { margin-top: 4px; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; width: 100%; margin-top: 18px; }
.mini-stat { text-align: center; padding: 9px 6px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-2); }
.mini-stat b { display: block; font-family: var(--mono); font-size: 16px; color: var(--text); }
.mini-stat span { color: var(--muted); font-size: 10px; }

/* ---------- today ---------- */
.today-layout { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.75fr); gap: 22px; margin-top: 22px; }
.today-panel { padding: 28px 30px; }
.today-banner {
  margin: -4px 0 18px;
  padding: 10px 14px;
  border: 1px solid rgba(251, 191, 36, 0.28);
  border-radius: 11px;
  background: rgba(251, 191, 36, 0.07);
  color: var(--accent-3);
  font-size: 12.5px;
}
.today-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.today-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.today-head h2 { font-size: 25px; letter-spacing: -0.025em; margin: 4px 0 4px; }
.today-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.today-progress { text-align: right; flex: 0 0 auto; }
.today-progress b { font-family: var(--mono); font-size: 22px; color: var(--accent); }
.today-progress span { display: block; color: var(--muted); font-size: 11px; }
.today-section { margin-top: 22px; }
.today-section h3 { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); margin-bottom: 12px; font-family: var(--mono); font-weight: 600; }
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-2);
  cursor: pointer;
  transition: 0.16s ease;
}
.task:hover { border-color: var(--line-strong); }
.task input { margin-top: 4px; accent-color: var(--accent); width: 16px; height: 16px; flex: 0 0 auto; }
.task span { font-size: 14px; color: var(--text); }
.task input:checked + span { color: var(--faint); text-decoration: line-through; text-decoration-color: rgba(148, 163, 184, 0.45); }
.task.done { border-color: rgba(52, 211, 153, 0.25); background: rgba(16, 185, 129, 0.06); }
.accept-box { padding: 15px 17px; border: 1px dashed var(--line-strong); border-radius: 13px; background: rgba(251, 191, 36, 0.045); }
.accept-box ul { padding-left: 18px; color: var(--muted); font-size: 13.5px; }
.accept-box li + li { margin-top: 5px; }
.today-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.side-panel { padding: 22px 22px; }
.side-panel + .side-panel { margin-top: 16px; }
.panel-kicker { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--accent); text-transform: uppercase; margin-bottom: 9px; }
.side-panel h2 { font-size: 20px; letter-spacing: -0.02em; margin-bottom: 10px; }
#weekFocus { color: var(--muted); font-size: 13.5px; }
#weekFocus ul { padding-left: 17px; }
#weekFocus li + li { margin-top: 7px; }
#weekFocus b { color: var(--text); }
.quick-links { display: flex; flex-direction: column; gap: 8px; }
.quick-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel-2);
  transition: 0.16s ease;
}
.quick-link span { color: var(--muted); font-size: 12px; }
.quick-link b { font-size: 13px; font-weight: 700; text-align: right; }
.quick-link:hover { border-color: var(--accent); transform: translateX(2px); }
.tip-panel .tip-list { list-style: none; display: flex; flex-direction: column; gap: 8px; color: var(--muted); font-size: 13px; }
.tip-panel .tip-list li::before { content: "→"; color: var(--accent); margin-right: 7px; }
.tip-panel b { color: var(--text); }

/* ---------- stats ---------- */
.stats-panel { margin-top: 22px; padding: 24px 26px; }
.stat-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.stat-card { padding: 14px 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel-2); }
.stat-card b { display: block; font-family: var(--mono); font-size: 23px; line-height: 1.1; letter-spacing: -0.02em; }
.stat-card span { color: var(--muted); font-size: 10.5px; }
.stat-card small { display: block; color: var(--faint); font-size: 10px; margin-top: 2px; }
.stat-card.accent b { color: var(--accent); }
.stat-card.green b { color: var(--accent-2); }
.stat-card.amber b { color: var(--accent-3); }

/* ---------- week tabs / plan ---------- */
.week-tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 18px; }
.week-tab {
  flex: 0 0 auto;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition: 0.16s ease;
}
.week-tab:hover { border-color: var(--line-strong); color: var(--text); }
.week-tab.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.plan-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.day-card {
  position: relative;
  padding: 20px 21px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}
.day-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); opacity: 0.55; }
.day-card.week-0::before { background: var(--accent-3); }
.day-card.week-1::before { background: var(--accent); }
.day-card.week-2::before { background: var(--violet); }
.day-card.week-3::before { background: var(--accent-2); }
.day-card.week-4::before { background: var(--danger); }
.day-card.complete { border-color: rgba(52, 211, 153, 0.3); }
.day-card.complete::before { background: #34d399; opacity: 1; }
.day-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.day-label { font-family: var(--mono); font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 0.04em; }
.day-date { color: var(--muted); font-size: 12px; margin-left: 8px; }
.pill { padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); font-size: 11px; font-family: var(--mono); white-space: nowrap; }
.day-card.complete .pill { color: #34d399; border-color: rgba(52, 211, 153, 0.35); background: rgba(52, 211, 153, 0.08); }
.day-card h3 { margin: 12px 0 3px; font-size: 18px; letter-spacing: -0.02em; line-height: 1.35; }
.phase { color: var(--faint); font-size: 11.5px; margin-bottom: 13px; }
.day-card .task-list { gap: 5px; }
.day-card .task { padding: 7px 9px; border-radius: 9px; }
.day-card .task span { font-size: 12.5px; }
.day-card details { margin-top: 12px; }
.day-card summary { cursor: pointer; color: var(--muted); font-size: 12px; list-style: none; }
.day-card summary::-webkit-details-marker { display: none; }
.day-card summary::before { content: "▸ "; color: var(--accent); }
.day-card details[open] summary::before { content: "▾ "; }
.accept-list { margin: 9px 0 0; padding-left: 17px; color: var(--muted); font-size: 12.5px; }
.accept-list li + li { margin-top: 4px; }
.day-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 13px; }
.day-focus { margin-top: 10px; color: var(--faint); font-size: 11.5px; }
.day-focus b { color: var(--muted); }

/* ---------- bank ---------- */
.bank-toolbar { display: flex; align-items: center; gap: 9px; padding: 13px; margin-bottom: 18px; flex-wrap: wrap; }
.bank-toolbar input[type="search"] {
  flex: 1 1 280px;
  min-width: 220px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel-2);
  color: var(--text);
  outline: none;
}
.bank-toolbar input[type="search"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(110, 231, 249, 0.1); }
.bank-toolbar select {
  height: 40px;
  padding: 0 30px 0 11px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel-2);
  color: var(--text);
  outline: none;
}
.bank-count { margin-left: auto; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.problem-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.problem-card {
  padding: 17px 17px 15px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  cursor: pointer;
  transition: 0.18s ease;
  display: flex;
  flex-direction: column;
  min-height: 170px;
}
.problem-card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2); }
.problem-top { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.badge { padding: 3px 8px; border-radius: 7px; background: rgba(110, 231, 249, 0.1); color: var(--accent); font-family: var(--mono); font-size: 11px; font-weight: 700; }
.diff { padding: 3px 8px; border-radius: 999px; font-size: 10px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.diff.d1 { color: #34d399; border-color: rgba(52, 211, 153, 0.3); background: rgba(52, 211, 153, 0.07); }
.diff.d2 { color: #6ee7f9; border-color: rgba(110, 231, 249, 0.3); background: rgba(110, 231, 249, 0.07); }
.diff.d3 { color: #fbbf24; border-color: rgba(251, 191, 36, 0.3); background: rgba(251, 191, 36, 0.07); }
.diff.d4 { color: #fb923c; border-color: rgba(251, 146, 60, 0.3); background: rgba(251, 146, 60, 0.07); }
.diff.d5 { color: #fb7185; border-color: rgba(251, 113, 133, 0.3); background: rgba(251, 113, 133, 0.07); }
.problem-card h3 { margin: 11px 0 4px; font-size: 17px; letter-spacing: -0.02em; line-height: 1.35; }
.problem-meta { color: var(--muted); font-size: 11.5px; }
.problem-excerpt { margin-top: 8px; color: var(--faint); font-size: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.problem-foot { margin-top: auto; padding-top: 12px; display: flex; align-items: center; justify-content: space-between; gap: 8px; color: var(--faint); font-size: 11px; }
.problem-actions { display: flex; align-items: center; gap: 9px; }
.mini-link { border: 0; background: transparent; color: var(--faint); padding: 0; font-size: 10.5px; text-decoration: underline dotted; }
.mini-link:hover { color: var(--accent); }
.problem-foot .open { color: var(--accent); font-weight: 700; }
.classic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.classic-card { padding: 15px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.classic-card .badge { background: rgba(251, 191, 36, 0.1); color: var(--accent-3); }
.classic-card h3 { font-size: 15px; margin: 9px 0 3px; }
.classic-card p { color: var(--muted); font-size: 12px; }
.classic-card a { display: inline-block; margin-top: 9px; color: var(--accent); font-size: 12px; font-weight: 700; }
.classic-card a:hover { text-decoration: underline; }

/* ---------- templates ---------- */
.template-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.template-card { border: 1px solid var(--line); border-radius: 18px; background: var(--panel); overflow: hidden; }
.template-head { padding: 16px 18px; display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); }
.template-head h3 { font-size: 17px; letter-spacing: -0.02em; }
.template-head p { color: var(--muted); font-size: 12px; margin-top: 3px; }
.tag { padding: 3px 8px; border-radius: 999px; background: rgba(196, 181, 253, 0.1); color: var(--violet); font-size: 10px; border: 1px solid rgba(196, 181, 253, 0.22); white-space: nowrap; }
.code-wrap { position: relative; background: rgba(3, 7, 18, 0.58); }
[data-theme="light"] .code-wrap { background: #0f172a; }
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  padding: 5px 9px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 7px;
  background: rgba(15, 23, 42, 0.86);
  color: #cbd5e1;
  font-size: 11px;
  font-family: var(--mono);
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
pre.code { margin: 0; padding: 18px 18px 20px; overflow-x: auto; font-size: 12px; line-height: 1.65; color: #dbeafe; tab-size: 4; }
pre.code code { font-family: var(--mono); }
.checklist-panel { margin-top: 20px; padding: 24px; }
.checklist-panel h2 { font-size: 20px; margin-bottom: 14px; }
.checklist-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 20px; }
.checklist-grid label { display: flex; gap: 9px; align-items: flex-start; color: var(--muted); font-size: 13px; padding: 6px 0; }
.checklist-grid input { margin-top: 4px; accent-color: var(--accent); }
.checklist-grid code { color: var(--accent); background: rgba(110, 231, 249, 0.08); padding: 1px 5px; border-radius: 4px; }
.checklist-grid b { color: var(--text); }

/* ---------- log ---------- */
.log-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr); gap: 18px; align-items: start; }
.form-panel { padding: 24px; }
#view-log > .panel { padding: 24px; margin-top: 18px; }
.review-panel form { display: flex; flex-direction: column; gap: 12px; }
.review-panel label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.review-panel input, .review-panel select, .review-panel textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--text);
  padding: 9px 11px;
  outline: none;
  font-size: 13px;
}
.review-panel input:focus, .review-panel select:focus, .review-panel textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(110, 231, 249, 0.09); }
.review-panel textarea { resize: vertical; min-height: 55px; }
.form-grid { display: grid; gap: 12px; margin-bottom: 12px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-panel label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.form-panel input, .form-panel select, .form-panel textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--text);
  padding: 9px 11px;
  outline: none;
  font-size: 13px;
}
.form-panel input:focus, .form-panel select:focus, .form-panel textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(110, 231, 249, 0.09); }
.form-panel textarea { resize: vertical; min-height: 55px; }
.form-panel label:has(textarea) { margin-bottom: 12px; }
.fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px 12px; margin: 0 0 12px; }
.fieldset legend { color: var(--muted); font-size: 12px; padding: 0 5px; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.checks label { flex-direction: row; align-items: center; gap: 6px; color: var(--text); font-size: 12px; }
.checks input { width: auto; accent-color: var(--accent); }
.form-actions { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 4px; }
.log-stats { padding: 22px; position: sticky; top: 86px; }
.log-stats .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.mini-log-list { display: flex; flex-direction: column; gap: 7px; }
.mini-log { padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel-2); font-size: 11.5px; color: var(--muted); }
.mini-log b { color: var(--text); font-family: var(--mono); font-weight: 600; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.panel-head h2 { font-size: 20px; letter-spacing: -0.02em; }
.log-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.log-table th { text-align: left; color: var(--faint); font-weight: 600; padding: 8px 7px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.log-table td { padding: 9px 7px; border-bottom: 1px solid rgba(148, 163, 184, 0.08); color: var(--muted); vertical-align: top; }
.log-table td b { color: var(--text); font-family: var(--mono); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.del-btn { border: 0; background: transparent; color: var(--faint); font-size: 16px; padding: 0 4px; }
.del-btn:hover { color: var(--danger); }
.review-panel { margin-top: 18px; padding: 24px; }
.review-list { display: flex; flex-direction: column; gap: 9px; margin-top: 16px; }
.review-item { padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px; background: var(--panel-2); font-size: 12.5px; color: var(--muted); }
.review-item b { color: var(--text); }
.review-item .goal-line { margin-top: 4px; color: var(--text); }

/* ---------- resources ---------- */
.resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.resource-card { padding: 22px; transition: 0.18s ease; position: relative; overflow: hidden; }
.resource-card:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.resource-tag { display: inline-block; padding: 2px 7px; border-radius: 5px; background: rgba(110, 231, 249, 0.09); color: var(--accent); font-family: var(--mono); font-size: 10px; }
.resource-card h2 { font-size: 18px; margin: 10px 0 6px; letter-spacing: -0.02em; }
.resource-card p { color: var(--muted); font-size: 13px; }
.resource-link { display: inline-block; margin-top: 14px; color: var(--accent); font-size: 12px; font-weight: 700; }
.rule-panel { margin-top: 18px; padding: 26px; }
.submit-guide { margin-top: 18px; padding: 26px; }
.submit-guide h2 { font-size: 22px; margin-bottom: 10px; }
.submit-guide .rules { margin-top: 12px; }
.rule-panel h2 { font-size: 22px; margin-bottom: 12px; }
.rules { padding-left: 20px; color: var(--muted); }
.rules li + li { margin-top: 8px; }
.rules b { color: var(--text); }

/* ---------- footer ---------- */
.footer {
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px 26px 34px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--faint);
  font-size: 11px;
}

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 24px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2, 6, 18, 0.74); backdrop-filter: blur(8px); }
.modal-card {
  position: relative;
  z-index: 1;
  width: min(900px, 100%);
  max-height: 88vh;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: var(--panel-solid);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.55);
  padding: 30px 34px 34px;
  animation: modalIn 0.22s ease both;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(0.99); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
}
.modal-close:hover { color: var(--text); border-color: var(--line-strong); }
.modal-head { padding-right: 36px; margin-bottom: 18px; }
.modal-head h2 { font-size: 28px; line-height: 1.2; letter-spacing: -0.03em; margin: 10px 0 7px; }
.modal-meta { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.statement { color: var(--muted); font-size: 14px; }
.statement h3 { color: var(--text); font-size: 15px; margin: 24px 0 8px; padding-left: 10px; border-left: 3px solid var(--accent); }
.statement p { margin: 9px 0; }
.statement ul, .statement ol { padding-left: 22px; margin: 8px 0; }
.statement li + li { margin-top: 4px; }
.statement code { color: var(--accent); background: rgba(110, 231, 249, 0.08); padding: 1px 5px; border-radius: 4px; font-size: 0.92em; }
.statement pre { background: rgba(3, 7, 18, 0.5); padding: 12px 14px; border-radius: 10px; overflow-x: auto; border: 1px solid var(--line); }
.statement pre code { background: transparent; padding: 0; color: #dbeafe; }
.statement blockquote { margin: 10px 0; padding: 8px 14px; border-left: 3px solid var(--line-strong); color: var(--faint); }
.statement table { border-collapse: collapse; margin: 10px 0; width: 100%; }
.statement th, .statement td { border: 1px solid var(--line); padding: 6px 9px; font-size: 12.5px; }
.statement img { max-width: 100%; border-radius: 8px; }
.sample {
  margin: 10px 0;
  border: 1px solid var(--line);
  border-radius: 11px;
  overflow: hidden;
  background: rgba(3, 7, 18, 0.28);
}
.sample-head { display: flex; align-items: center; justify-content: space-between; padding: 7px 12px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 11px; font-family: var(--mono); }
.sample-label { padding: 7px 12px 0; color: var(--faint); font-size: 10px; font-family: var(--mono); }
.sample-head button { border: 0; background: transparent; color: var(--accent); font-size: 11px; }
.sample pre { margin: 0; padding: 11px 13px; color: var(--text); font-family: var(--mono); font-size: 12px; white-space: pre-wrap; word-break: break-word; }
.sample-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.submit-note {
  margin-top: 18px;
  padding: 9px 13px;
  border: 1px solid rgba(251, 191, 36, 0.25);
  border-radius: 10px;
  background: rgba(251, 191, 36, 0.06);
  color: var(--accent-3);
  font-size: 12px;
}
.modal-actions { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }

/* ---------- learn path ---------- */
.learn-loop {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
}
.learn-head-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; flex: 0 0 auto; }
.learn-share-note {
  margin: 10px 2px 0;
  color: var(--faint);
  font-size: 11.5px;
}
.learn-share-note b { color: var(--accent); font-family: var(--mono); }
.loop-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--panel-2);
}
.loop-num {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 9px;
  background: rgba(110, 231, 249, 0.12);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}
.loop-card b { font-size: 13px; }
.loop-card p { color: var(--muted); font-size: 11.5px; margin-top: 3px; line-height: 1.5; }
.roadmap-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.roadmap-card {
  padding: 17px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
}
.roadmap-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.roadmap-range { color: var(--faint); font-size: 10px; font-family: var(--mono); }
.roadmap-card h3 { font-size: 15px; line-height: 1.35; margin: 10px 0 8px; letter-spacing: -0.02em; }
.roadmap-card ul { padding-left: 16px; color: var(--muted); font-size: 11.5px; }
.roadmap-card li + li { margin-top: 3px; }
.roadmap-meta { margin-top: 10px; display: flex; flex-direction: column; gap: 4px; color: var(--faint); font-size: 10.5px; line-height: 1.45; }
.roadmap-meta b { color: var(--muted); }
.roadmap-skip { color: var(--danger); opacity: 0.8; }
.learn-progress {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 13px 17px;
  margin-bottom: 13px;
}
.learn-progress-text { flex: 0 0 auto; color: var(--muted); font-size: 12px; }
.learn-progress-text b { color: var(--accent); font-family: var(--mono); font-size: 15px; }
.learn-bar { flex: 1; height: 7px; border-radius: 999px; background: var(--line); overflow: hidden; }
.learn-bar span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 0.35s ease; }
.lesson-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
.lesson-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.16s ease;
}
.lesson-card.learned { border-color: rgba(52, 211, 153, 0.35); }
.lesson-head { display: flex; gap: 12px; align-items: flex-start; padding: 16px 17px; }
.lesson-index { flex: 0 0 auto; font-family: var(--mono); font-size: 12px; color: var(--accent); padding-top: 2px; }
.lesson-title { flex: 1; min-width: 0; }
.lesson-title-row { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.lesson-title h3 { font-size: 16px; letter-spacing: -0.02em; line-height: 1.3; }
.lesson-week, .lesson-minutes { padding: 2px 6px; border-radius: 5px; font-family: var(--mono); font-size: 9px; border: 1px solid var(--line); color: var(--muted); }
.lesson-minutes { color: var(--accent); border-color: rgba(110, 231, 249, 0.22); background: rgba(110, 231, 249, 0.05); }
.lesson-title p { color: var(--muted); font-size: 11.5px; margin-top: 5px; line-height: 1.5; }
.lesson-check { flex: 0 0 auto; display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 11px; padding-top: 3px; cursor: pointer; }
.lesson-check input { accent-color: var(--accent); width: 14px; height: 14px; }
.lesson-card.learned .lesson-check { color: #34d399; }
.lesson-card details { border-top: 1px solid var(--line); }
.lesson-card summary { cursor: pointer; padding: 10px 17px; color: var(--faint); font-size: 11.5px; list-style: none; }
.lesson-card summary::-webkit-details-marker { display: none; }
.lesson-card summary::before { content: "▸ "; color: var(--accent); }
.lesson-card details[open] summary::before { content: "▾ "; }
.lesson-body { padding: 0 17px 17px; }
.lesson-body-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(220px, 0.7fr); gap: 16px; align-items: start; }
.lesson-example {
  padding: 10px 12px;
  border: 1px solid rgba(110, 231, 249, 0.2);
  border-radius: 10px;
  background: rgba(110, 231, 249, 0.055);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}
.lesson-example b { color: var(--accent); }
.lesson-practice-panel {
  position: sticky;
  top: 86px;
  padding: 14px;
  border: 1px solid rgba(251, 191, 36, 0.2);
  border-radius: 13px;
  background: rgba(251, 191, 36, 0.035);
}
.practice-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  width: 100%;
  margin-top: 8px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--text);
  text-align: left;
  transition: 0.16s ease;
}
.practice-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.practice-card b { font-size: 12.5px; line-height: 1.4; }
.practice-card span:last-child { color: var(--faint); font-size: 10.5px; }
.practice-card .practice-go { color: var(--accent); font-weight: 700; font-size: 10.5px; }
.practice-card.classic .practice-go { color: var(--accent-3); }
.practice-card.classic { border-left: 3px solid var(--accent-3); }
.lesson-video {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 9px;
  padding: 6px 9px;
  border-radius: 8px;
  border: 1px solid rgba(251, 113, 133, 0.3);
  background: rgba(251, 113, 133, 0.07);
  color: #fda4af;
  font-size: 11px;
  font-weight: 700;
}
.lesson-video:hover { border-color: #fb7185; }
.video-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
.video-card {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(251, 113, 133, 0.08), var(--panel));
  transition: 0.18s ease;
}
.video-card:hover { transform: translateY(-2px); border-color: rgba(251, 113, 133, 0.4); }
.video-play {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #fb7185;
  color: #1a0b10;
  font-size: 18px;
  box-shadow: 0 8px 24px rgba(251, 113, 133, 0.25);
}
.video-info { flex: 1; min-width: 0; }
.video-info h3 { font-size: 16px; margin: 6px 0 3px; letter-spacing: -0.02em; }
.video-info p { color: var(--muted); font-size: 11.5px; line-height: 1.5; }
.video-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; flex: 0 0 auto; }
.video-go { color: #fda4af; font-size: 11px; font-weight: 700; white-space: nowrap; }
.video-alt { color: var(--faint); font-size: 10.5px; text-decoration: underline dotted; white-space: nowrap; }
.video-alt:hover { color: var(--accent); }
.practice-note { margin-top: 10px; color: var(--faint); font-size: 10.5px; line-height: 1.5; }
.practice-empty { color: var(--muted); font-size: 12px; line-height: 1.6; }
.lesson-points { padding-left: 18px; color: var(--muted); font-size: 12.5px; }
.lesson-points li + li { margin-top: 5px; }
.lesson-code { margin: 12px 0 0; padding: 12px 13px; border: 1px solid var(--line); border-radius: 10px; background: rgba(3, 7, 18, 0.48); overflow-x: auto; font-size: 11.5px; line-height: 1.65; color: #dbeafe; }
[data-theme="light"] .lesson-code { background: #0f172a; }
.lesson-code code { font-family: var(--mono); }
.lesson-pitfall { margin-top: 11px; padding: 9px 11px; border-left: 3px solid var(--warning, #fbbf24); border-radius: 0 8px 8px 0; background: rgba(251, 191, 36, 0.06); color: var(--muted); font-size: 11.5px; }
.lesson-pitfall b { color: var(--accent-3); }
.lesson-practice { margin-top: 11px; color: var(--muted); font-size: 11.5px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.lesson-practice b { color: var(--text); }
.lesson-resource { margin-top: 10px; color: var(--faint); font-size: 11px; }
.learn-resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.learn-resource-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  transition: 0.16s ease;
}
.learn-resource-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.learn-resource-card h3 { font-size: 16px; margin: 9px 0 5px; letter-spacing: -0.02em; }
.learn-resource-card p { color: var(--muted); font-size: 12px; }
.skip-panel { margin-top: 18px; padding: 23px 25px; }
.skip-panel h2 { font-size: 20px; margin-bottom: 10px; }
.skip-panel ul { padding-left: 18px; color: var(--muted); font-size: 13px; }
.skip-panel li + li { margin-top: 5px; }

/* ---------- misc ---------- */
.skeleton { color: var(--faint); font-size: 13px; padding: 20px 0; }
.empty { color: var(--faint); font-size: 13px; padding: 24px 0; text-align: center; }
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 200;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  pointer-events: none;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel-solid);
  color: var(--text);
  font-size: 13px;
  box-shadow: 0 14px 50px rgba(0, 0, 0, 0.3);
  transition: 0.22s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }

/* ---------- responsive ---------- */
@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; }
  .hero-progress { flex-direction: row; gap: 24px; justify-content: flex-start; flex-wrap: wrap; }
  .mini-stats { max-width: 320px; margin-top: 0; }
  .today-layout { grid-template-columns: 1fr; }
  .today-side { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .today-side .side-panel + .side-panel { margin-top: 0; }
  .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .problem-grid, .classic-grid, .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learn-loop { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .roadmap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-grid { grid-template-columns: 1fr; }
  .learn-resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .log-layout { grid-template-columns: 1fr; }
  .log-stats { position: static; }
}
@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; gap: 10px; padding: 12px 16px; }
  .nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 2px; }
  .nav a { padding: 7px 10px; white-space: nowrap; }
  .top-actions { margin-left: auto; }
  .top-badge { display: none; }
  .wrap { padding: 22px 16px 60px; }
  .hero { padding: 26px 22px; border-radius: 18px; }
  .hero h1 { font-size: clamp(34px, 11vw, 52px); }
  .hero-progress { flex-direction: column; align-items: flex-start; }
  .ring-wrap { width: 132px; height: 132px; }
  .ring-center strong { font-size: 28px; }
  .today-panel { padding: 20px 18px; }
  .today-head { flex-direction: column; }
  .today-progress { text-align: left; }
  .today-side { grid-template-columns: 1fr; }
  .plan-grid, .template-grid, .problem-grid, .classic-grid, .resource-grid, .checklist-grid { grid-template-columns: 1fr; }
  .learn-loop, .roadmap-grid, .learn-resource-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .video-card { align-items: flex-start; }
  .lesson-head { flex-wrap: wrap; }
  .lesson-check { margin-left: 28px; }
  .lesson-body-grid { grid-template-columns: 1fr; }
  .lesson-practice-panel { position: static; }
  .learn-progress { flex-direction: column; align-items: flex-start; gap: 9px; }
  .learn-bar { width: 100%; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .head-progress { text-align: left; }
  .learn-head-right { flex-direction: row; align-items: center; flex-wrap: wrap; }
  .head-actions { width: 100%; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid.two, .form-grid.three { grid-template-columns: 1fr; }
  .bank-toolbar input[type="search"] { flex-basis: 100%; }
  .bank-toolbar select { flex: 1 1 40%; }
  .bank-count { width: 100%; margin-left: 0; }
  .modal { padding: 10px; }
  .modal-card { padding: 24px 18px 26px; max-height: 92vh; }
  .sample-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; padding: 20px 16px 30px; }
}