/* Notebook / Defter Kağıdı Stili */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
  --paper-bg: #FAF7F0;
  --paper-grid: #E8E3D7;
  --paper-line: #E2DDD2;
  --paper-margin: #EF4444;
  --ink-primary: #1E293B;
  --ink-muted: #64748B;
  --ink-accent: #2563EB;
  --card-bg: #FFFFFF;
  --card-border: #1E293B;
  --card-shadow: 2px 2px 0px #1E293B;
  --postit-bg: #FEF08A;
  --postit-border: #EAB308;
  --stamp-red: #DC2626;
  --stamp-green: #16A34A;
  --radius: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--paper-bg);
  background-image: 
    linear-gradient(var(--paper-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink-primary);
  min-height: 100vh;
  padding-bottom: calc(75px + env(safe-area-inset-bottom, 0px));
  line-height: 1.5;
}

/* Notebook Margin Line on Desktop / Tablet */
.notebook-container {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
  position: relative;
}

/* Notebook Header Spiral Rings */
.spiral-binder {
  display: flex;
  justify-content: space-around;
  padding: 6px 12px;
  margin-bottom: 12px;
}

.spiral-ring {
  width: 14px;
  height: 24px;
  background: linear-gradient(135deg, #CBD5E1, #94A3B8);
  border-radius: 8px;
  border: 1.5px solid #475569;
  box-shadow: 0 2px 3px rgba(0,0,0,0.15);
}

/* Notebook Header Box */
.defter-header {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 16px;
  margin-bottom: 16px;
  position: relative;
}

.defter-header::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 36px;
  width: 2px;
  background-color: rgba(239, 68, 68, 0.4);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.app-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.handwriting {
  font-family: 'Caveat', cursive;
  font-size: 1.55rem;
  line-height: 1;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Streak & Badge Banner */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FEF3C7;
  border: 1.5px solid #D97706;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #B45309;
}

/* Date Switcher */
.date-selector-bar {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.date-btn {
  background: #F1F5F9;
  border: 1.5px solid var(--card-border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.1s, background 0.1s;
}

.date-btn:active {
  transform: scale(0.96);
  background: #E2E8F0;
}

.date-current {
  text-align: center;
}

.date-text {
  font-weight: 800;
  font-size: 1.05rem;
}

.date-day {
  font-size: 0.75rem;
  color: var(--ink-muted);
  font-weight: 600;
}

/* Card / Box Styles */
.defter-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 16px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Quick Subject Select Chips */
.subject-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
  max-height: 120px;
  overflow-y: auto;
  padding: 2px;
}

.subject-chip {
  background: #F8FAFC;
  border: 1.5px solid #CBD5E1;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.1s ease;
  user-select: none;
}

.subject-chip.selected {
  background: #1E293B;
  color: #FFFFFF;
  border-color: #1E293B;
  box-shadow: 1px 1px 0px #0F172A;
}

/* Form Inputs */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.defter-input, .defter-select, .defter-textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid var(--card-border);
  border-radius: 8px;
  background: #FFFFFF;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.defter-input:focus, .defter-select:focus, .defter-textarea:focus {
  border-color: #2563EB;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Quick Increments Buttons */
.quick-buttons {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.quick-btn {
  flex: 1;
  background: #F1F5F9;
  border: 1px solid #CBD5E1;
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  text-align: center;
  transition: all 0.1s;
}

.quick-btn:active {
  background: #E2E8F0;
  transform: scale(0.95);
}

/* Main Action Button */
.btn-submit {
  width: 100%;
  background: #2563EB;
  color: #FFFFFF;
  border: 2px solid #1E293B;
  border-radius: var(--radius);
  box-shadow: 2px 2px 0px #1E293B;
  padding: 14px;
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn-submit:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0px #1E293B;
}

/* Daily Stats Ribbon */
.daily-summary-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.summary-metric-box {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 12px;
  text-align: center;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ink-primary);
  margin-top: 2px;
}

/* Entries List (Defter Sayfası) */
.entries-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.entry-item {
  background: #FFFFFF;
  border: 1.5px solid var(--card-border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  transition: transform 0.1s;
}

.entry-main {
  flex: 1;
}

.entry-lesson-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: #EFF6FF;
  color: #1D4ED8;
  display: inline-block;
  margin-bottom: 4px;
  border: 1px solid #BFDBFE;
}

.entry-topic {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.entry-meta {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 2px;
}

.entry-stats {
  text-align: right;
  min-width: 80px;
}

.entry-qcount {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.entry-duration {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.entry-empty {
  text-align: center;
  padding: 24px 12px;
  background: rgba(255, 255, 255, 0.6);
  border: 2px dashed #CBD5E1;
  border-radius: 10px;
  color: var(--ink-muted);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Post-it Teacher Note Card */
.teacher-note-card {
  background: var(--postit-bg);
  border: 2px solid var(--postit-border);
  border-radius: var(--radius);
  box-shadow: 3px 3px 0px rgba(202, 138, 4, 0.4);
  padding: 16px;
  margin-bottom: 16px;
  position: relative;
}

.teacher-stamp {
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  color: var(--stamp-red);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.teacher-rating-stars {
  color: #EAB308;
  font-size: 1.1rem;
}

.teacher-note-text {
  font-family: 'Caveat', cursive;
  font-size: 1.35rem;
  line-height: 1.4;
  color: #713F12;
  margin-top: 6px;
  white-space: pre-wrap;
}

.teacher-advice-box {
  background: rgba(255, 255, 255, 0.8);
  border-left: 3px solid #EAB308;
  padding: 8px 10px;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #854D0E;
  border-radius: 4px;
}

/* Quick Share Buttons */
.share-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.btn-share {
  background: #22C55E;
  color: #FFFFFF;
  border: 2px solid #1E293B;
  border-radius: 10px;
  box-shadow: 2px 2px 0px #1E293B;
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
}

.btn-share:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0px #1E293B;
}

.btn-secondary {
  background: #FFFFFF;
  color: #1E293B;
  border: 2px solid #1E293B;
  border-radius: 10px;
  box-shadow: 2px 2px 0px #1E293B;
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #FFFFFF;
  border-top: 2px solid var(--card-border);
  display: flex;
  justify-content: space-around;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom, 0px));
  z-index: 100;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.nav-item {
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-muted);
  cursor: pointer;
  padding: 4px 12px;
  border-radius: 8px;
  text-decoration: none;
}

.nav-item.active {
  color: var(--ink-accent);
}

.nav-icon {
  font-size: 1.25rem;
}

/* Modal Drawer */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: flex-end;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--paper-bg);
  border-top: 3px solid var(--card-border);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 20px 16px calc(40px + env(safe-area-inset-bottom, 0px));
  transform: translateY(100%);
  transition: transform 0.25s ease;
}

.modal-overlay.open .modal-content {
  transform: translateY(0);
}

.modal-handle {
  width: 40px;
  height: 5px;
  background: #CBD5E1;
  border-radius: 999px;
  margin: 0 auto 16px;
}

/* Toast */
.toast {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-50px);
  background: #1E293B;
  color: #FFFFFF;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 300;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

/* Auth Container & Tabs */
.auth-wrapper {
  margin-top: 10px;
  margin-bottom: 24px;
}

.auth-tabs {
  display: flex;
  gap: 6px;
  background: #E2E8F0;
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 16px;
  border: 1.5px solid var(--card-border);
}

.auth-tab-btn {
  flex: 1;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.auth-tab-btn.active {
  background: var(--card-bg);
  color: var(--ink-primary);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  border: 1.5px solid var(--card-border);
}

/* Category Filter for Lessons */
.group-filter-bar {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 8px;
  scrollbar-width: none;
}

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

.group-filter-btn {
  white-space: nowrap;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1.5px solid var(--card-border);
  background: #F1F5F9;
  color: #475569;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}

.group-filter-btn.active {
  background: #FEF08A;
  color: #854D0E;
  border-color: #CA8A04;
}

/* Topic Chips */
.topic-chips-wrapper {
  margin-top: 6px;
  margin-bottom: 12px;
}

.topic-chips-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748B;
  text-transform: uppercase;
  margin-bottom: 4px;
  display: block;
}

.topic-chips-scroll {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 2px 6px 2px;
  scrollbar-width: none;
}

.topic-chips-scroll::-webkit-scrollbar {
  display: none;
}

.topic-chip-item {
  white-space: nowrap;
  padding: 3px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #334155;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.topic-chip-item:hover, .topic-chip-item.active {
  background: #EFF6FF;
  border-color: #3B82F6;
  color: #1D4ED8;
}

/* Edit Button in Entry */
.entry-edit-btn {
  background: #F1F5F9;
  border: 1px solid #CBD5E1;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.entry-edit-btn:hover {
  background: #E2E8F0;
  border-color: #94A3B8;
  color: #0F172A;
}

/* Badges for AI screening */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  margin-top: 4px;
}

.ai-badge-pending {
  background: #FEF9C3;
  color: #854D0E;
  border: 1px solid #EAB308;
}

.ai-badge-reject {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #EF4444;
}

.ai-badge-approved {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #22C55E;
}

/* User profile bar */
.user-profile-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
  border-radius: 8px;
  padding: 6px 10px;
  margin-top: 8px;
}

.user-name-tag {
  font-weight: 700;
  font-size: 0.85rem;
  color: #1E293B;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-logout {
  background: transparent;
  border: 1px solid #CBD5E1;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748B;
  cursor: pointer;
}

.btn-logout:hover {
  background: #FEE2E2;
  border-color: #F87171;
  color: #DC2626;
}