/* ==========================================================================
   PEKERTI BATCH-30 — Claude-inspired Warm Light Theme
   Warm cream background, generous spacing, soft rounded cards
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Claude-style warm palette */
  --bg: #FAF9F6;
  --surface: #FFFFFF;
  --surface-raised: #FFFFFF;
  --muted: #F4F1EC;
  --border: #E8E4DD;
  --border-hover: #D9D4CC;

  /* Accent — Raharja green meets Claude warmth */
  --primary: #1B7D5A;
  --primary-hover: #15644A;
  --primary-bg: #EEFBF4;
  --primary-border: #C2EDD8;

  /* Text — warm grays like Claude */
  --text: #2D2B28;
  --text-2: #4A4742;
  --text-3: #6B6762;
  --text-4: #9C9891;

  /* Layout */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 1px 2px rgba(0,0,0,0.03), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover: 0 2px 8px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}

::selection { background: var(--primary-bg); color: var(--primary); }

/* ==========================================================================
   LOCK SCREEN
   ========================================================================== */
#lockScreen {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
#lockScreen.unlocked { opacity: 0; visibility: hidden; pointer-events: none; }

.lock-card {
  width: 100%; max-width: 400px; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 3rem 2.5rem;
  box-shadow: var(--shadow-hover);
}
.lock-logo-img { height: 60px; margin-bottom: 1.5rem; }
.lock-title { font-size: 1.4rem; font-weight: 700; color: var(--text); margin-bottom: 0.3rem; letter-spacing: -0.02em; }
.lock-subtitle { font-size: 0.85rem; color: var(--text-3); margin-bottom: 2rem; }
.passcode-input {
  width: 100%; padding: 0.9rem 1.2rem; font-size: 1.05rem;
  text-align: center; letter-spacing: 3px; text-transform: uppercase;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  background: var(--muted); outline: none; margin-bottom: 1.25rem;
  color: var(--text); font-weight: 500;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.passcode-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
.lock-error-msg { color: #C0392B; font-size: 0.82rem; margin-top: 0.75rem; display: none; }
@keyframes shake { 0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)} }
.shake { animation: shake 0.35s ease; }

/* ==========================================================================
   BUTTONS (Claude-style)
   ========================================================================== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.65rem 1.3rem; font-size: 0.85rem; font-weight: 600;
  color: #fff; background: var(--primary); border: none;
  border-radius: 99px; cursor: pointer;
  text-decoration: none; transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(27,125,90,0.2);
}
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 2px 8px rgba(27,125,90,0.25); }
.btn-full { width: 100%; justify-content: center; border-radius: var(--radius-sm); padding: 0.85rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.8rem; }
.btn-outline {
  padding: 0.5rem 1rem; font-size: 0.8rem; font-weight: 600;
  color: var(--primary); background: var(--surface);
  border: 1.5px solid var(--primary-border); border-radius: 99px;
  cursor: pointer; transition: all 0.15s;
}
.btn-outline:hover { background: var(--primary-bg); }

/* ==========================================================================
   HEADER (Claude-style minimal)
   ========================================================================== */
.app-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); padding: 0.75rem 2rem;
}
.header-inner {
  max-width: 1060px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-logo { height: 36px; }
.brand-title { font-size: 1rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.brand-sub { font-size: 0.72rem; color: var(--text-4); font-weight: 500; }

/* ==========================================================================
   DAY NAVIGATION (Claude pill-style)
   ========================================================================== */
.day-nav {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem;
}
.day-nav-inner {
  max-width: 1060px; margin: 0 auto;
  display: flex; gap: 0.5rem; overflow-x: auto;
  padding-bottom: 2px;
}
.day-btn {
  flex: 0 0 auto; padding: 0.6rem 1.15rem;
  font-size: 0.82rem; font-weight: 600;
  color: var(--text-3); background: var(--muted);
  border: 1.5px solid transparent; border-radius: 99px;
  cursor: pointer; transition: all 0.2s ease;
  display: flex; flex-direction: column; align-items: center; gap: 0.05rem;
}
.day-btn-label { font-size: 0.78rem; }
.day-btn-date { font-size: 0.65rem; font-weight: 400; color: var(--text-4); }
.day-btn:hover { background: var(--bg); border-color: var(--border); color: var(--text); }
.day-btn.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(27,125,90,0.2);
}
.day-btn.active .day-btn-date { color: rgba(255,255,255,0.75); }
.day-btn.active .day-btn-label { color: #fff; }

/* ==========================================================================
   CONTENT
   ========================================================================== */
.content-wrapper {
  max-width: 1060px; margin: 0 auto; padding: 1.75rem 2rem 5rem;
}

/* Tab Bar (Claude underline style) */
.tab-bar {
  display: flex; gap: 0.1rem; margin-bottom: 1.75rem;
  border-bottom: 1.5px solid var(--border);
}
.tab-btn {
  padding: 0.75rem 1.25rem; font-size: 0.875rem; font-weight: 500;
  color: var(--text-4); background: transparent;
  border: none; border-bottom: 2.5px solid transparent;
  cursor: pointer; transition: all 0.2s ease;
  margin-bottom: -1.5px;
}
.tab-btn:hover { color: var(--text-2); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* Tab Content */
.tab-content { display: none; animation: fadeIn 0.2s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ==========================================================================
   CARDS (Claude-style: rounded, soft shadow, generous padding)
   ========================================================================== */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow); margin-bottom: 0.75rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-hover); border-color: var(--border-hover); }
.card:last-child { margin-bottom: 0; }

.empty-state {
  text-align: center; color: var(--text-4); padding: 3rem 2rem;
  font-size: 0.9rem;
}

/* ==========================================================================
   SCHEDULE VIEW
   ========================================================================== */
.day-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  border-left: 4px solid var(--primary); margin-bottom: 1.25rem;
  padding: 1.25rem 1.5rem;
}
.day-header-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
.day-header-desc { font-size: 0.85rem; color: var(--text-3); margin-top: 0.15rem; }

.badge {
  display: inline-block; padding: 0.25rem 0.7rem;
  font-size: 0.68rem; font-weight: 700; border-radius: 99px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-sync { background: #ECFDF5; color: #065F46; }
.badge-async { background: #FFF7ED; color: #9A3412; }
.badge-tugas { background: #EFF6FF; color: #1E40AF; }
.badge-test { background: #FEF2F2; color: #991B1B; }
.badge-ceremony { background: var(--muted); color: var(--text-3); }
.badge-rehat { background: var(--muted); color: var(--text-4); }

/* Filters */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  align-items: center; justify-content: space-between;
  margin-bottom: 1.25rem;
}
.filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.filter-chip {
  padding: 0.4rem 0.85rem; font-size: 0.78rem; font-weight: 500;
  color: var(--text-3); background: var(--surface);
  border: 1.5px solid var(--border); border-radius: 99px;
  cursor: pointer; transition: all 0.15s;
}
.filter-chip:hover { border-color: var(--border-hover); color: var(--text-2); }
.filter-chip.active {
  background: var(--primary-bg); color: var(--primary);
  border-color: var(--primary-border); font-weight: 600;
}

.filter-bar .search-input {
  padding: 0.5rem 1rem; font-size: 0.82rem; font-weight: 400;
  border: 1.5px solid var(--border); border-radius: 99px;
  background: var(--surface); outline: none; min-width: 200px;
  color: var(--text); transition: border-color 0.2s, box-shadow 0.2s;
}
.filter-bar .search-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
.filter-bar .search-input::placeholder { color: var(--text-4); }

/* Session Cards */
.session-card {
  display: grid; grid-template-columns: 135px 1fr 32px;
  gap: 1.25rem; align-items: center; padding: 1.1rem 1.5rem;
}
.session-time { display: flex; flex-direction: column; gap: 0.4rem; }
.session-time .time { font-weight: 700; font-size: 0.92rem; color: var(--primary); }
.session-body h3 { font-size: 0.925rem; font-weight: 600; color: var(--text); margin-bottom: 0.2rem; line-height: 1.4; }
.session-meta { font-size: 0.78rem; color: var(--text-3); }

/* Checkbox */
.checkbox {
  width: 24px; height: 24px; border-radius: 7px;
  border: 2px solid var(--border); background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.15s;
  flex-shrink: 0;
}
.checkbox:hover { border-color: var(--primary); }
.checkbox.checked { background: var(--primary); border-color: var(--primary); }
.checkbox svg { width: 14px; height: 14px; fill: #fff; opacity: 0; }
.checkbox.checked svg { opacity: 1; }

/* ==========================================================================
   MATERIALS (Reader layout)
   ========================================================================== */
.materials-layout { display: grid; grid-template-columns: 260px 1fr; gap: 1.5rem; }
.mat-sidebar { display: flex; flex-direction: column; gap: 0.4rem; }
.mat-btn {
  padding: 0.8rem 1rem; text-align: left;
  font-size: 0.82rem; font-weight: 500; color: var(--text-2);
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; transition: all 0.15s;
  line-height: 1.4;
}
.mat-btn:hover { background: var(--muted); border-color: var(--border-hover); }
.mat-btn.active {
  background: var(--primary-bg); color: var(--primary);
  border-color: var(--primary-border); font-weight: 600;
}

.mat-reader {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem 2.5rem;
  min-height: 450px; box-shadow: var(--shadow);
}

/* Markdown — Claude reading feel */
.markdown-content h1 { font-size: 1.4rem; font-weight: 700; margin: 1.5rem 0 0.6rem; color: var(--text); letter-spacing: -0.02em; }
.markdown-content h2 { font-size: 1.15rem; font-weight: 700; margin: 1.5rem 0 0.5rem; color: var(--primary); }
.markdown-content h3 { font-size: 1rem; font-weight: 600; margin: 1.25rem 0 0.4rem; color: var(--text); }
.markdown-content h4 { font-size: 0.9rem; font-weight: 600; margin: 1rem 0 0.35rem; }
.markdown-content p, .markdown-content li { font-size: 0.9rem; color: var(--text-2); line-height: 1.75; margin-bottom: 0.65rem; }
.markdown-content ul, .markdown-content ol { padding-left: 1.35rem; margin-bottom: 0.85rem; }
.markdown-content ul { list-style: disc; }
.markdown-content ol { list-style: decimal; }
.markdown-content strong { color: var(--text); font-weight: 600; }
.markdown-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
.markdown-content hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }
.markdown-content blockquote {
  padding: 0.85rem 1.2rem; margin: 1rem 0;
  background: var(--primary-bg); border-left: 3px solid var(--primary);
  border-radius: var(--radius-xs); color: var(--text-2);
}
.markdown-content blockquote p { margin-bottom: 0.2rem; font-size: 0.875rem; }
.markdown-content code { background: var(--muted); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.82rem; color: #7C3AED; }
.markdown-content pre {
  background: #1E1E2E; border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem; overflow-x: auto; margin: 1rem 0;
}
.markdown-content pre code { background: none; color: #CDD6F4; padding: 0; font-size: 0.78rem; line-height: 1.55; }
.markdown-content table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.82rem; display: block; overflow-x: auto; }
.markdown-content th, .markdown-content td { padding: 0.55rem 0.8rem; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.markdown-content th { background: var(--muted); font-weight: 600; color: var(--text); }
.markdown-content tr:nth-child(even) { background: #FAFAF8; }

/* ==========================================================================
   MEDIA CARDS
   ========================================================================== */
.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
.media-card { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
.media-thumb {
  height: 150px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.thumb-video { background: linear-gradient(145deg, #EEFBF4 0%, #F0FDF9 100%); }
.thumb-pdf { background: linear-gradient(145deg, #FEF7ED 0%, #FFFBF5 100%); }
.media-icon { font-size: 2.2rem; }
.media-type-label { font-size: 0.62rem; font-weight: 700; color: var(--text-4); text-transform: uppercase; letter-spacing: 0.08em; }
.media-body { padding: 1.25rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
.media-body h3 { font-size: 0.92rem; font-weight: 600; margin-bottom: 0.35rem; color: var(--text); }
.media-body p { font-size: 0.82rem; color: var(--text-3); margin-bottom: 1rem; flex: 1; line-height: 1.5; }

/* ==========================================================================
   PRETEST / BANK SOAL
   ========================================================================== */
.pretest-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.25rem; }
.pretest-desc { font-size: 0.875rem; color: var(--text-3); }
.pretest-list { display: flex; flex-direction: column; gap: 0.75rem; }
.question-card { padding: 1.5rem 1.75rem; }
.question-card h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.85rem; line-height: 1.55; color: var(--text); }
.options { display: flex; flex-direction: column; gap: 0.4rem; }
.option { padding: 0.65rem 1rem; border-radius: var(--radius-sm); font-size: 0.84rem; line-height: 1.5; }
.opt-normal { background: var(--muted); color: var(--text-2); border: 1px solid var(--border); }
.opt-correct { background: #ECFDF5; color: #065F46; border: 1px solid #86EFAC; font-weight: 600; }
.explanation {
  margin-top: 0.85rem; padding: 1rem 1.25rem;
  background: var(--primary-bg); border-left: 3px solid var(--primary);
  border-radius: var(--radius-xs); font-size: 0.82rem; color: var(--text-2); line-height: 1.65;
}
.explanation p { margin-bottom: 0.3rem; }
.explanation strong { color: var(--text); }

/* ==========================================================================
   TOAST
   ========================================================================== */
#toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--text); color: #fff; padding: 0.65rem 1.5rem;
  border-radius: 99px; font-size: 0.82rem; font-weight: 500;
  opacity: 0; transition: opacity 0.3s; pointer-events: none; z-index: 10000;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
#toast.show { opacity: 1; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .materials-layout { grid-template-columns: 1fr; }
  .mat-sidebar { flex-direction: row; overflow-x: auto; gap: 0.35rem; }
  .mat-btn { white-space: nowrap; flex: 0 0 auto; }
}

@media (max-width: 768px) {
  .session-card { grid-template-columns: 1fr; gap: 0.6rem; }
  .session-time { flex-direction: row; align-items: center; gap: 0.75rem; }
  .content-wrapper { padding: 1.25rem 1rem 4rem; }
  .app-header { padding: 0.6rem 1rem; }
  .day-nav { padding: 0.6rem 1rem; }
  .tab-btn { padding: 0.6rem 0.85rem; font-size: 0.8rem; }
  .day-header { padding: 1rem 1.25rem; }
  .card { padding: 1rem 1.15rem; }
  .mat-reader { padding: 1.5rem; }
  .question-card { padding: 1.1rem 1.25rem; }
}

@media (max-width: 480px) {
  .day-btn { padding: 0.5rem 0.8rem; }
  .day-btn-label { font-size: 0.7rem; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar .search-input { min-width: unset; }
  .hero-meta-bar { gap: 0.75rem; }
}