:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #eff6ff;
  --success: #d1fae5;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
}

a { color: inherit; text-decoration: none; }

.hero,
.page-hero {
  background: radial-gradient(circle at top left, #1d4ed8, #0f172a 68%);
  color: white;
}

.hero {
  padding: 24px 24px 72px;
}

.page-hero {
  padding: 24px 24px 44px;
}

.nav {
  max-width: 1120px;
  margin: 0 auto 52px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.88);
}

.hero-content,
.page-hero-content {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  gap: 28px;
  align-items: center;
}

.hero-content {
  grid-template-columns: 1.45fr 0.95fr;
}

.page-hero-content {
  grid-template-columns: 1.2fr 0.8fr;
}

.eyebrow, .section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.08;
  margin: 10px 0 16px;
  letter-spacing: -0.05em;
}

.hero-text,
.page-hero-text {
  max-width: 720px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
}

.hero-card,
.page-side-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 24px;
  padding: 28px;
  backdrop-filter: blur(10px);
}

.mini-title {
  font-size: 0.85rem;
  font-weight: 700;
  opacity: 0.85;
}

.hero-card ul,
.page-side-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  line-height: 2;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.container {
  max-width: 1120px;
  margin: -40px auto 0;
  padding: 0 24px 48px;
}

.page-container {
  max-width: 1120px;
  margin: -22px auto 0;
  padding: 0 24px 48px;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow);
  border-radius: 28px;
  padding: 28px;
  margin-bottom: 24px;
}

.section-head,
.section-intro {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.section-block h2,
.subheading,
.vocab-card h3,
.card h3,
.weekly-card h3,
.link-card h3 {
  margin-top: 0;
}

.part-grid,
.link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.part-card,
.card,
.vocab-card,
.weekly-card,
.link-card,
.mini-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  background: white;
}

.part-card,
.link-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.part-card:hover,
.link-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.12);
  border-color: #bfdbfe;
}

.part-label {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.part-card span,
.link-card span,
.vocab-card span,
.muted,
.saved-note,
.inline-links a {
  color: var(--muted);
}

.study-grid,
.mini-grid {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.study-grid.two-wide,
.mini-grid.two-wide {
  grid-template-columns: repeat(2, 1fr);
}

.study-grid.three-wide {
  grid-template-columns: repeat(3, 1fr);
}

.study-grid.split-late {
  grid-template-columns: 1fr 1fr;
  margin-top: 20px;
}

.card.accent,
.question-box,
.mini-card.accent {
  background: var(--accent);
  border: 1px solid #bfdbfe;
}

.badge {
  display: inline-flex;
  align-items: center;
  height: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--primary);
  border: 1px solid #bfdbfe;
  font-size: 0.9rem;
  font-weight: 700;
}

.clean-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.9;
}

.clean-list.ordered {
  padding-left: 20px;
}

.tag-row,
.inline-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 600;
}

.question-box {
  border-radius: 20px;
  padding: 18px;
  margin-bottom: 14px;
}

.question-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 8px;
}

.vocab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.vocab-card p {
  margin: 8px 0;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: 0.2s ease;
}

.btn.small { padding: 10px 14px; font-size: 0.92rem; }
.btn.primary { background: var(--primary); color: white; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.secondary { background: #eff6ff; color: var(--primary); border: 1px solid #bfdbfe; }

textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  font: inherit;
  resize: vertical;
  margin-bottom: 12px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.weekly-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.weekly-card,
.mini-card {
  background: #f8fafc;
}

.link-card p,
.card p,
.page-side-card p,
.part-card p,
.weekly-card p,
.mini-card p {
  line-height: 1.7;
}

.footer {
  padding: 24px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 920px) {
  .hero-content,
  .page-hero-content,
  .part-grid,
  .link-grid,
  .study-grid.two-wide,
  .study-grid.three-wide,
  .study-grid.split-late,
  .mini-grid.two-wide,
  .weekly-grid,
  .vocab-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .hero,
  .page-hero {
    padding: 20px 18px 56px;
  }

  .container,
  .page-container {
    padding: 0 18px 40px;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 36px;
  }

  .panel {
    padding: 22px;
    border-radius: 22px;
  }

  .hero-actions,
  .nav-links,
  .tag-row,
  .inline-links {
    gap: 10px;
  }

  .input-row {
    grid-template-columns: 1fr;
  }
}

.goal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.goal-card {
  min-height: 100%;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.controls-row {
  align-items: stretch;
}

.calendar-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 18px;
  margin-top: 18px;
}

.calendar-card,
.calendar-side-card {
  padding: 22px;
}

.calendar-toolbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
}

.calendar-header-texts h3 {
  margin: 0 0 6px;
}

.calendar-helper {
  margin: 0;
}

.toolbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays {
  margin-bottom: 10px;
}

.calendar-weekdays span {
  text-align: center;
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--muted);
  padding: 8px 0;
}

.calendar-grid {
  gap: 10px;
}

.calendar-day {
  position: relative;
  min-height: 96px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px;
  background: white;
  text-align: left;
  cursor: pointer;
  transition: 0.2s ease;
}

.calendar-day:hover {
  transform: translateY(-1px);
  border-color: #bfdbfe;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.1);
}

.calendar-day.outside-month {
  color: #94a3b8;
  background: #f8fafc;
}

.calendar-day.today {
  border-color: #60a5fa;
  background: #eff6ff;
}

.calendar-day.selected {
  border-color: var(--primary);
  background: #dbeafe;
}

.calendar-day-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  font-weight: 800;
}

.calendar-day.today .calendar-day-number,
.calendar-day.selected .calendar-day-number {
  background: white;
}

.calendar-day-note {
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-indicator {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #2563eb;
}

.calendar-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}

.legend-dot.today { background: #60a5fa; }
.legend-dot.selected { background: #2563eb; }
.legend-dot.note { background: #0f172a; }

@media (max-width: 920px) {
  .goal-grid,
  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .calendar-toolbar {
    grid-template-columns: 1fr;
  }

  .toolbar-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .calendar-grid {
    gap: 8px;
  }

  .calendar-day {
    min-height: 82px;
    padding: 10px;
    border-radius: 14px;
  }

  .calendar-day-note {
    font-size: 0.76rem;
  }
}


.compact-top {
  margin-top: 18px;
}

.deck-link-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border-color: #bfdbfe;
}

.control-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 180px;
}

.control-block.grow {
  flex: 1 1 280px;
}

.control-block span {
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.control-block input,
.control-block select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  background: white;
}

.toeic-controls {
  margin-top: 22px;
}

.toeic-controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
}

.control-actions {
  min-width: 260px;
}

.toeic-set-meta {
  margin: 18px 0 10px;
}

.toeic-vocab-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.toeic-vocab-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
  background: white;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.04);
}

.toeic-vocab-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.toeic-vocab-index {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 999px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 800;
}

.toeic-vocab-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  line-height: 1.35;
}

.toeic-vocab-meaning {
  margin: 0;
  color: var(--text);
  font-weight: 600;
  line-height: 1.7;
}

.toeic-vocab-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 14px;
}

.day-chip {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.check-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: white;
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.check-btn.is-done {
  background: var(--success);
  border-color: #86efac;
  color: #166534;
}

.empty-state {
  margin-top: 16px;
}

@media (max-width: 920px) {
  .toeic-vocab-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .toeic-controls-row {
    flex-direction: column;
    align-items: stretch;
  }

  .control-block,
  .control-block.grow,
  .control-actions {
    min-width: 100%;
  }
}