/*
Theme Name: Stilte-start
Theme URI: https://stiltestart.nl
Author: AI voor Docenten
Description: Een rustige lesactiviteiten-tool voor docenten om lesstarters en leseindes te beheren en projecteren.
Version: 1.4.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: stiltestart
*/

/* =============================================
   CSS CUSTOM PROPERTIES
   ============================================= */
:root {
  /* Colors */
  --color-primary: #7C3AED;
  --color-primary-light: #8B5CF6;
  --color-primary-pale: #EDE9FE;
  --color-primary-ultra: #F5F3FF;
  --color-accent: #A78BFA;
  --color-bg: #F8F7FF;
  --color-bg-dot: #E8E4F8;
  --color-surface: #FFFFFF;
  --color-border: #E5E1F5;
  --color-text: #1A1523;
  --color-text-secondary: #6B5E8A;
  --color-text-muted: #9C8FBA;
  --color-timer-bg: #DDD6FE;

  /* Typography */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1100px;
  --container-narrow: 760px;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(124,58,237,0.06), 0 4px 16px rgba(124,58,237,0.08);
  --shadow-hover: 0 4px 12px rgba(124,58,237,0.12), 0 12px 32px rgba(124,58,237,0.12);

  /* Transitions */
  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.4s cubic-bezier(0.4,0,0.2,1);
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  background-image: radial-gradient(circle, var(--color-bg-dot) 1px, transparent 1px);
  background-size: 24px 24px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }
ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-text);
}

/* =============================================
   LAYOUT
   ============================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* =============================================
   HEADER / NAV
   ============================================= */
.site-header {
  padding: var(--space-md) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(248,247,255,0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-logo .badge {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(124,58,237,0.2);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  background: var(--color-primary-pale);
  color: var(--color-primary);
}

.btn-new {
  background: var(--color-primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-new:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124,58,237,0.35);
}

/* =============================================
   HERO / PAGE HEADER
   ============================================= */
.page-hero {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl) var(--space-2xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-pale);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(124,58,237,0.2);
  margin-bottom: var(--space-lg);
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* =============================================
   FILTER TABS
   ============================================= */
.filter-section {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.filter-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.filter-tabs {
  display: inline-flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.filter-tab {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.filter-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* =============================================
   CATEGORY GRID
   ============================================= */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 900px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .category-grid { grid-template-columns: 1fr; } }

.category-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}
.category-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.category-card.card--add {
  background: var(--color-primary-ultra);
  border-color: rgba(124,58,237,0.2);
  border-style: dashed;
}
.category-card.card--add:hover {
  background: var(--color-primary-pale);
}

.card-emoji {
  width: 48px;
  height: 48px;
  background: var(--color-primary-pale);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}
.card--add .card-emoji {
  background: rgba(124,58,237,0.1);
  font-size: 1.25rem;
  color: var(--color-primary);
  font-style: normal;
  font-weight: 300;
}

.card-title {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.card--add .card-title {
  color: var(--color-text-secondary);
}

.card-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* =============================================
   BACK LINK
   ============================================= */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-2xl);
  transition: gap var(--transition);
}
.back-link:hover { gap: 10px; }
.back-link::before { content: '←'; }

/* =============================================
   CATEGORY PAGE HEADER
   ============================================= */
.category-page-header {
  margin-bottom: var(--space-2xl);
}

.category-page-header h1 {
  font-size: 2.5rem;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.category-page-header .subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.category-page-header .subtitle .level-badge {
  color: var(--color-primary);
  font-weight: 600;
}

/* =============================================
   ACTIVITY LIST
   ============================================= */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.activity-item {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.activity-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-card);
}

.activity-item-body { flex: 1; min-width: 0; }

.activity-item-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.activity-item-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.level-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.level-tag {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* =============================================
   SINGLE ACTIVITY / SETTINGS PAGE
   ============================================= */
.settings-page {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.activity-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.activity-card h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  font-family: var(--font-body);
}

.activity-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 1rem;
}

.timer-settings-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.timer-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.time-options {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}

.time-option {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.time-option:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.time-option.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.time-custom {
  display: flex;
  align-items: center;
  gap: 6px;
}
.time-custom input {
  width: 64px;
  padding: 8px 12px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
  outline: none;
  transition: border-color var(--transition);
  background: var(--color-surface);
}
.time-custom input:focus {
  border-color: var(--color-primary);
}
.time-custom span {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.btn-start {
  width: 100%;
  background: var(--color-primary);
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
  display: block;
  text-align: center;
}
.btn-start:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124,58,237,0.35);
}

/* =============================================
   TIMER PAGE (fullscreen projection)
   ============================================= */
.timer-page {
  position: fixed;
  inset: 0;
  background: #DDD6FE;
  background-image: radial-gradient(circle, rgba(167,139,250,0.4) 1px, transparent 1px);
  background-size: 24px 24px;
  display: flex;
  flex-direction: column;
  z-index: 999;
  padding: var(--space-3xl);
  overflow: hidden;
}

.timer-page-inner {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3xl);
}

.timer-content {
  flex: 1;
  max-width: 620px;
}

.timer-title {
  font-family: var(--font-body);
  font-size: clamp(3rem, 5.5vw, 5rem);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.timer-instruction {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  color: #4C3D7A;
  line-height: 1.65;
}

.timer-clock {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.timer-circle {
  position: relative;
  width: 360px;
  height: 360px;
}

.timer-circle svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.timer-circle-bg {
  fill: none;
  stroke: rgba(124,58,237,0.15);
  stroke-width: 8;
}

.timer-circle-progress {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s linear;
}

.timer-time {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-body);
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.timer-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
}
.timer-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.timer-shortcuts {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  font-size: 0.8rem;
  color: #6B5E8A;
  white-space: nowrap;
}

.timer-shortcuts .key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 4px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text);
}

/* Timer done state */
.timer-page.timer-done .timer-circle-progress {
  stroke: #10B981;
}
.timer-page.timer-paused .timer-status::before {
  animation: none;
  background: #F59E0B;
}

/* =============================================
   FRONT-END EDITOR
   ============================================= */
.editor-page {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.editor-page h1 {
  font-size: 1.75rem;
  font-weight: 600;
  font-family: var(--font-body);
  margin-bottom: var(--space-2xl);
}

.editor-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.form-control {
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-surface);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-actions {
  display: flex;
  gap: var(--space-md);
  padding-top: var(--space-md);
}

.btn-secondary {
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-primary {
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-primary);
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124,58,237,0.3);
}

/* =============================================
   MESSAGES / NOTICES
   ============================================= */
.notice {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
}
.notice-success {
  background: #D1FAE5;
  color: #065F46;
  border: 1px solid #6EE7B7;
}
.notice-error {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* =============================================
   EMPTY STATE
   ============================================= */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--color-text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: var(--space-md); }
.empty-state h3 { font-family: var(--font-body); font-size: 1.1rem; font-weight: 600; color: var(--color-text-secondary); margin-bottom: var(--space-sm); }

/* =============================================
   WP ADMIN BAR OFFSET
   ============================================= */
.admin-bar .site-header { top: 32px; }

/* =============================================
   UTILITIES
   ============================================= */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.text-center { text-align: center; }
.mt-auto { margin-top: auto; }

/* =============================================
   TIMER CONTROLS ROW (op timerpagina)
   ============================================= */
.timer-controls-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-sm);
}

.timer-ctrl-pill {
  background: rgba(255,255,255,0.75);
  border: 1.5px solid rgba(124,58,237,0.25);
  border-radius: var(--radius-full);
  padding: 7px 16px;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  backdrop-filter: blur(6px);
}
.timer-ctrl-pill:hover {
  background: var(--color-primary-pale);
  border-color: var(--color-primary);
}
.timer-pause-pill {
  min-width: 100px;
  justify-content: center;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* =============================================
   LES EDITOR: LESPLANNER CSS
   ============================================= */
.les-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: all var(--transition);
}
.les-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-card);
}