@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600;700;800&family=Nunito:wght@400;500;600;700&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────── */
:root {
  --accent:        #e17055;
  --accent-light:  #f9ede9;
  --accent-dark:   #c0553a;
  --bg:            #fafaf8;
  --bg-card:       #ffffff;
  --text:          #1a1a2e;
  --text-soft:     #6b6b8a;
  --text-muted:    #a0a0b8;
  --tab-bg:        #1f3b2f;
  --tab-bg-hover:  #2a5040;
  --tab-border:    #163026;
  --page-side:     20px;
  --border:        #ebe9e4;
  --green:         #27ae60;
  --green-light:   #e8f8f0;
  --shadow-sm:     0 2px 8px rgba(26,26,46,0.06);
  --shadow-md:     0 4px 20px rgba(26,26,46,0.10);
  --shadow-lg:     0 8px 40px rgba(26,26,46,0.13);
  --radius-sm:     10px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --font-head:     'Poppins', sans-serif;
  --font-body:     'Nunito', sans-serif;
  --transition:    0.2s ease;
}

/* ─── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── Vak-tabs ───────────────────────────────────────────────── */
.vak-tabs {
  background: var(--tab-bg);
  border-bottom: 2px solid var(--tab-border);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px var(--page-side);
  overflow-x: auto;
  scrollbar-width: none;
}

.vak-tabs::-webkit-scrollbar { display: none; }

.vak-tab {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 40px;
  font-family: var(--font-body);
  white-space: nowrap;
}

.vak-tab:hover {
  color: #fff;
  background: var(--tab-bg-hover);
}

.vak-tab.active {
  background: rgba(255,255,255,0.14);
  color: #fff;
  box-shadow: inset 0 -2px 0 rgba(255,255,255,0.4);
}

.vak-tab .tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.vak-tab .tab-remove {
  margin-left: 2px;
  opacity: 0;
  font-size: 0.8rem;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  transition: opacity var(--transition), background var(--transition);
  color: rgba(255,255,255,0.6);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.vak-tab:hover .tab-remove {
  opacity: 1;
}

.vak-tab .tab-remove:hover {
  background: rgba(255,80,80,0.3);
  color: #fff;
}

.vak-tabs-spacer {
  flex: 1;
}

.import-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.08);
  border: 1.5px dashed rgba(255,255,255,0.25);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 40px;
  font-family: var(--font-body);
  white-space: nowrap;
}

.import-btn:hover {
  background: var(--tab-bg-hover);
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

/* ─── Import error toast ─────────────────────────────────────── */
.import-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #d63031;
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  z-index: 2000;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  max-width: 90vw;
  text-align: center;
}

.import-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ─── Header ─────────────────────────────────────────────────── */
.header {
  background: var(--accent);
  color: #fff;
  padding: 32px var(--page-side) 26px;
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  pointer-events: none;
}

.header::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -20px;
  width: 160px; height: 160px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
  pointer-events: none;
}

.header-inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-top: 8px;
}

.header-emoji {
  font-size: 2.2rem;
  line-height: 1;
}

.header-titles h1 {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.1;
}

.header-titles .niveau {
  font-size: 0.9rem;
  opacity: 0.85;
  font-weight: 600;
  margin-top: 2px;
}

.header-countdown {
  background: rgba(255,255,255,0.18);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.header-countdown .clock-icon {
  font-size: 1.1rem;
}

/* ─── Totale voortgangsbalk ──────────────────────────────────── */
.progress-total-wrap {
  background: rgba(255,255,255,0.18);
  border-radius: 100px;
  height: 12px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-total-bar {
  height: 100%;
  background: #fff;
  border-radius: 100px;
  transition: width 0.4s ease;
  min-width: 4px;
}

.progress-total-label {
  font-size: 0.82rem;
  font-weight: 700;
  opacity: 0.9;
  text-align: right;
}

/* ─── Filter-tabs ────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 18px var(--page-side) 4px;
  max-width: 900px;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar { display: none; }

.filter-btn {
  flex-shrink: 0;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 700;
  background: var(--bg-card);
  color: var(--text-soft);
  border: 2px solid var(--border);
  transition: all var(--transition);
  min-height: 44px;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ─── Main layout ────────────────────────────────────────────── */
.main {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px var(--page-side);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ─── Thema-kaart ────────────────────────────────────────────── */
.thema-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1.5px solid var(--border);
  transition: box-shadow var(--transition);
}

.thema-card:hover {
  box-shadow: var(--shadow-md);
}

.thema-header {
  padding: 18px 20px 14px;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.thema-header-left {
  flex: 1;
  min-width: 0;
}

.thema-header-left h2 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 2px;
}

.thema-boek {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.thema-header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

.thema-pct {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
}

.thema-progress-wrap {
  width: 80px;
  height: 6px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.thema-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.4s ease;
}

.thema-progress-bar.done {
  background: var(--green);
}

.thema-chevron {
  margin-top: 2px;
  font-size: 1rem;
  color: var(--text-muted);
  transition: transform var(--transition);
}

.thema-card.open .thema-chevron {
  transform: rotate(180deg);
}

/* ─── Taakenlijst ────────────────────────────────────────────── */
.thema-body {
  display: none;
  padding: 0 20px 20px;
}

.thema-card.open .thema-body {
  display: block;
}

.taken-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.taak-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1.5px solid transparent;
  transition: all var(--transition);
}

.taak-item:hover {
  border-color: var(--accent-light);
  background: var(--accent-light);
}

.taak-item.gedaan {
  background: var(--green-light);
  border-color: transparent;
  order: 999;
}

.taak-item.gedaan .taak-label {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* ─── Checkbox ───────────────────────────────────────────────── */
.taak-checkbox {
  appearance: none;
  -webkit-appearance: none;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2.5px solid var(--border);
  background: #fff;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  margin-top: 1px;
}

.taak-checkbox:checked {
  background: var(--green);
  border-color: var(--green);
}

.taak-checkbox:checked::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 900;
  line-height: 26px;
  text-align: center;
  width: 100%;
}

.taak-checkbox:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ─── Taak label + hint ──────────────────────────────────────── */
.taak-content {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.taak-label {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  flex: 1;
}

.hint-btn {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  margin-top: 2px;
}

.hint-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* ─── Hint modal ─────────────────────────────────────────────── */
.hint-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,26,46,0.45);
  z-index: 1000;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  backdrop-filter: blur(3px);
}

.hint-modal-overlay.open {
  display: flex;
}

.hint-modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 28px 24px 36px;
  width: 100%;
  max-width: 600px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(40px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.hint-modal-handle {
  width: 40px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 0 auto 20px;
}

.hint-modal h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--accent);
}

.hint-modal p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
}

.hint-modal-close {
  margin-top: 20px;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  min-height: 48px;
  transition: background var(--transition);
}

.hint-modal-close:hover {
  background: var(--accent-dark);
}

/* ─── Parent Quiz ────────────────────────────────────────────── */
.quiz-section {
  margin-top: 8px;
}

.quiz-toggle-btn {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--accent-light);
  color: var(--accent-dark);
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  transition: background var(--transition);
  min-height: 48px;
}

.quiz-toggle-btn:hover {
  background: #f0d5ce;
}

.quiz-toggle-btn .chevron {
  transition: transform var(--transition);
  font-size: 0.85rem;
}

.quiz-section.open .quiz-toggle-btn .chevron {
  transform: rotate(180deg);
}

.quiz-list {
  display: none;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.quiz-section.open .quiz-list {
  display: flex;
}

.quiz-card {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

/* ─── Completion badge ───────────────────────────────────────── */
.completion-badge {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--green-light);
  color: var(--green);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.completion-badge.show {
  display: flex;
}

/* ─── Hint tooltip (desktop hover) ──────────────────────────── */
.hint-tooltip {
  display: none;
  position: fixed;
  z-index: 900;
  max-width: 300px;
  background: var(--text);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 14px 16px 12px;
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  line-height: 1.6;
  font-weight: 500;
  pointer-events: auto;
}

.hint-tooltip.visible {
  display: block;
  animation: tooltipIn 0.18s ease;
}

@keyframes tooltipIn {
  from { opacity: 0; transform: scale(0.95) translateY(4px); }
  to   { opacity: 1; transform: scale(1)    translateY(0);   }
}

.hint-tooltip-close {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: var(--font-body);
}

.hint-tooltip-close:hover {
  color: #fff;
}

/* ─── Loading state ──────────────────────────────────────────── */
.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 600;
}

/* ─── Layout wrapper ─────────────────────────────────────────── */
.layout {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

/* ─── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  padding: 0 var(--page-side) 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.sidebar-card-header {
  padding: 14px 18px 10px;
  border-bottom: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card-header h3 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}

.sidebar-card-icon {
  font-size: 1rem;
}

/* ─── Mini-kalender ──────────────────────────────────────────── */
.calendar-body {
  padding: 14px 16px 16px;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.calendar-nav-btn {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-soft);
}

.calendar-nav-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.calendar-month-label {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  text-align: center;
}

.calendar-day-name {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 4px 0;
  text-transform: uppercase;
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 8px;
  color: var(--text);
  cursor: default;
  transition: background var(--transition);
}

.calendar-day.empty {
  visibility: hidden;
}

.calendar-day.other-month {
  color: var(--text-muted);
}

.calendar-day.today {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 800;
}

.calendar-day.exam-day {
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  border-radius: 50%;
}

.calendar-day.today.exam-day {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 3px var(--accent-light);
}

.calendar-legend {
  display: flex;
  gap: 14px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1.5px solid var(--border);
  flex-wrap: wrap;
}

.calendar-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-soft);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ─── 30/30 Dagtimer ─────────────────────────────────────────── */
.timer-body {
  padding: 16px 18px 18px;
}

.timer-phases {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
}

.timer-phase {
  flex: 1;
  border-radius: 6px;
  padding: 6px 4px 5px;
  text-align: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  transition: all var(--transition);
}

.timer-phase.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.timer-phase.done {
  background: var(--green-light);
  border-color: var(--green);
}

.timer-phase-name {
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--text-muted);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
  letter-spacing: -0.2px;
}

.timer-phase.active .timer-phase-name {
  color: rgba(255,255,255,0.85);
}

.timer-phase.done .timer-phase-name {
  color: var(--green);
}

.timer-phase-dur {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
}

.timer-phase.active .timer-phase-dur {
  color: rgba(255,255,255,0.7);
}

.timer-display {
  text-align: center;
  margin-bottom: 12px;
}

.timer-current-phase {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.timer-countdown {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  letter-spacing: -1px;
}

.timer-progress-wrap {
  height: 6px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 14px;
}

.timer-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 1s linear;
}

.timer-controls {
  display: flex;
  gap: 8px;
}

.timer-start-btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  min-height: 48px;
  transition: background var(--transition);
}

.timer-start-btn:hover {
  background: var(--accent-dark);
}

.timer-reset-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1.5px solid var(--border);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-soft);
  transition: all var(--transition);
}

.timer-reset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── Leertip ────────────────────────────────────────────────── */
.leertip-body {
  padding: 14px 18px 16px;
}

.leertip-text {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text);
  font-style: italic;
}

.leertip-text::before {
  content: '"';
  color: var(--accent);
  font-size: 1.4rem;
  font-family: var(--font-head);
  line-height: 0;
  vertical-align: -5px;
  margin-right: 3px;
}

/* ─── Thema-overzicht ────────────────────────────────────────── */
.overzicht-body {
  padding: 10px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.overzicht-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.overzicht-item-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.overzicht-item-naam {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.overzicht-item-pct {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--accent);
  flex-shrink: 0;
}

.overzicht-bar-wrap {
  height: 5px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.overzicht-bar {
  height: 100%;
  border-radius: 100px;
  background: var(--accent);
  transition: width 0.4s ease;
}

.overzicht-bar.done {
  background: var(--green);
}

/* ─── View-tabs ──────────────────────────────────────────────── */
#view-tabs-wrap {
  background: var(--bg-card);
  border-bottom: 2px solid var(--border);
}

.view-tabs {
  display: flex;
  padding: 0 var(--page-side);
  max-width: 1320px;
  margin: 0 auto;
}

.view-tab {
  padding: 13px 18px;
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.view-tab:hover { color: var(--accent); }
.view-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ─── Kalender view ──────────────────────────────────────────── */
.kalender-view {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px var(--page-side) 32px;
}

.kal-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.kal-nav-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.kal-maand-label {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  flex: 1;
  text-align: center;
  white-space: nowrap;
}

.kal-nav-btn, .kal-reset-btn {
  padding: 7px 12px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-soft);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.kal-nav-btn { width: 40px; justify-content: center; flex-shrink: 0; }

/* Reset-knop gaat op mobiel naar eigen regel */
.kal-reset-btn {
  font-size: 0.8rem;
  padding: 7px 10px;
}

.kal-nav-btn:hover, .kal-reset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.kal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.kal-dag-naam {
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 5px 1px;
  text-transform: uppercase;
  letter-spacing: 0.2px;
}

.kal-dag-naam.za { opacity: 0.35; }

.kal-cel {
  background: var(--bg-card);
  border-radius: 6px;
  border: 1.5px solid var(--border);
  padding: 4px 3px;
  min-height: 52px;
  cursor: pointer;
  transition: border-color var(--transition);
  overflow: hidden;
}

.kal-cel:hover:not(.za):not(.leeg) {
  border-color: var(--accent);
}

.kal-cel.leeg {
  background: transparent;
  border-color: transparent;
  cursor: default;
  pointer-events: none;
}

.kal-cel.za {
  background: #f4f4f2;
  cursor: default;
  pointer-events: none;
  opacity: 0.6;
}

.kal-cel.vandaag {
  border-color: var(--accent);
  border-width: 2px;
}

.kal-cel.examen {
  background: #fff5f4;
  border-color: #e74c3c;
  border-width: 2px;
  cursor: default;
  pointer-events: none;
}

.kal-datum {
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-soft);
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-head);
  line-height: 1.2;
}

.kal-cel.vandaag .kal-datum { color: var(--accent); }
.kal-cel.za .kal-datum { color: var(--text-muted); }
.kal-cel.examen .kal-datum { color: #e74c3c; }

.kal-vrij {
  font-size: 0.52rem;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
  text-align: center;
  margin-top: 3px;
  line-height: 1.3;
}

.kal-examen-label {
  font-size: 0.52rem;
  font-weight: 800;
  color: #e74c3c;
  display: block;
  line-height: 1.3;
  margin-top: 1px;
  overflow: hidden;
}

.kal-chips {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.kal-chip {
  font-size: 0.55rem;
  font-weight: 700;
  color: #fff;
  padding: 1px 3px;
  border-radius: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.5;
  background: var(--accent);
}

.kal-chip.herhaling {
  background: #8e44ad;
}

/* Grotere cellen op bredere schermen */
@media (min-width: 480px) {
  .kalender-view { padding: 18px 20px 32px; }
  .kal-grid { gap: 3px; }
  .kal-cel { min-height: 64px; padding: 5px; border-radius: 8px; }
  .kal-datum { font-size: 0.74rem; margin-bottom: 3px; }
  .kal-chip { font-size: 0.6rem; padding: 2px 4px; }
  .kal-vrij { font-size: 0.58rem; }
  .kal-examen-label { font-size: 0.58rem; }
}

/* ─── Dagdetail bottom sheet ─────────────────────────────────── */
.dagdetail-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,26,46,0.45);
  z-index: 1000;
  align-items: flex-end;
  justify-content: center;
  backdrop-filter: blur(3px);
}

.dagdetail-overlay.open { display: flex; }

.dagdetail-panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  width: 100%;
  max-width: 600px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
  max-height: 80vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.dagdetail-header {
  padding: 20px 24px 14px;
  border-bottom: 1.5px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 1;
}

.dagdetail-handle {
  width: 40px; height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 0 auto 14px;
}

.dagdetail-date {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}

.dagdetail-body { padding: 16px 24px 8px; }

.dagdetail-thema { margin-bottom: 20px; }

.dagdetail-thema-naam {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dagdetail-voortgang {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-left: auto;
}

.dagdetail-taken {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dagdetail-taak {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.dagdetail-taak.gedaan {
  color: var(--text-muted);
  text-decoration: line-through;
}

.dagdetail-taak-icon {
  flex-shrink: 0;
  font-size: 0.8rem;
  margin-top: 2px;
}

.dagdetail-close {
  margin: 12px 24px 28px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  min-height: 48px;
  transition: background var(--transition);
  width: calc(100% - 48px);
}

.dagdetail-close:hover { background: var(--accent-dark); }

/* ─── Vandaag-widget ─────────────────────────────────────────── */
.vandaag-body {
  padding: 14px 18px 16px;
}

.vandaag-datum-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.vandaag-leeg {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-style: italic;
}

.vandaag-thema-titel {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  margin-top: 12px;
}

.vandaag-thema-titel:first-of-type { margin-top: 0; }

.vandaag-taak {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 0.81rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 5px;
  color: var(--text-soft);
}

.vandaag-taak.gedaan {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* ─── Tablet (≥768px) ────────────────────────────────────────── */
@media (min-width: 768px) {
  :root { --page-side: 32px; }

  .header {
    padding: 40px var(--page-side) 32px;
  }

  .header-titles h1 {
    font-size: 2rem;
  }

  .main {
    padding: 24px var(--page-side);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

  .sidebar {
    padding: 0 var(--page-side) 32px;
  }

  .thema-header-left h2 {
    font-size: 1.15rem;
  }
}

/* ─── Desktop (≥1200px) ──────────────────────────────────────── */
@media (min-width: 1200px) {
  :root { --page-side: 40px; }

  .header {
    padding: 44px var(--page-side) 34px;
  }

  .filter-bar {
    padding: 20px var(--page-side) 0;
    max-width: 1320px;
  }

  .layout {
    flex-direction: row;
    align-items: flex-start;
    padding: 0 var(--page-side);
  }

  .main {
    flex: 1;
    min-width: 0;
    padding: 24px 24px 32px 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

  .sidebar {
    width: 300px;
    flex-shrink: 0;
    padding: 24px 0 32px;
    position: sticky;
    top: 16px;
  }
}