/* sleepy-eepy - Cozy Sleep Tracker Styling */

:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Light Theme (Cozy Warm Cream & Honey) */
  --bg-primary: #faf7f2;
  --bg-secondary: #f3ece1;
  --bg-card: #ffffff;
  --bg-card-hover: #fefcf9;
  --border-color: #e5dac9;
  --text-primary: #1f2937;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  /* Yellow / Amber Cozy Accents */
  --accent-yellow: #eab308;
  --accent-yellow-light: #fef08a;
  --accent-yellow-hover: #ca8a04;
  --accent-yellow-glow: rgba(234, 179, 8, 0.25);
  
  --badge-bg: #fef9c3;
  --badge-text: #854d0e;
  --timeline-track: #e8ded1;
  --timeline-bar: #eab308;
  --timeline-bar-hover: #ca8a04;
  
  --danger-color: #ef4444;
  --danger-bg: #fee2e2;
  --success-color: #10b981;
  --success-bg: #d1fae5;
  --warning-color: #f59e0b;
  --warning-bg: #fef3c7;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

[data-theme="dark"] {
  /* Dark Theme (Deep Midnight Sky & Cozy Moonlit Glow) */
  --bg-primary: #0d131f;
  --bg-secondary: #131c2e;
  --bg-card: #182338;
  --bg-card-hover: #1e2c45;
  --border-color: #273752;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-yellow: #facc15;
  --accent-yellow-light: #fef08a;
  --accent-yellow-hover: #eab308;
  --accent-yellow-glow: rgba(250, 204, 21, 0.35);
  
  --badge-bg: #322b10;
  --badge-text: #fef08a;
  --timeline-track: #141e30;
  --timeline-bar: #facc15;
  --timeline-bar-hover: #fde047;
  
  --danger-color: #f87171;
  --danger-bg: #451a1a;
  --success-color: #34d399;
  --success-bg: #064e3b;
  --warning-color: #fbbf24;
  --warning-bg: #453406;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: var(--accent-yellow-hover);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  text-decoration: underline;
}

[data-theme="dark"] a:not(.btn) {
  color: var(--accent-yellow);
}

/* Header & Navigation Bar */
.site-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none !important;
}

.brand-icon {
  font-size: 1.5rem;
}

.brand-yellow {
  color: var(--accent-yellow);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-secondary);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none !important;
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Hamburger button for mobile */
.hamburger-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.mobile-menu {
  display: none;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-menu.open {
  display: flex;
}

@media (max-width: 900px) {
  .nav-desktop {
    display: none;
  }
  .hamburger-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* Buttons with flex-wrap */
.btn-group, .toolbar, .actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none !important;
  white-space: nowrap;
}

.btn-primary,
a.btn-primary,
[data-theme="dark"] .btn-primary,
[data-theme="dark"] a.btn-primary {
  background-color: var(--accent-yellow) !important;
  color: #0f172a !important;
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  text-decoration: none !important;
}

.btn-primary:hover,
a.btn-primary:hover,
[data-theme="dark"] .btn-primary:hover,
[data-theme="dark"] a.btn-primary:hover {
  background-color: var(--accent-yellow-hover) !important;
  color: #000000 !important;
  text-decoration: none !important;
}

.btn-secondary,
a.btn-secondary,
[data-theme="dark"] .btn-secondary,
[data-theme="dark"] a.btn-secondary {
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color);
  text-decoration: none !important;
}

.btn-secondary:hover,
a.btn-secondary:hover,
[data-theme="dark"] .btn-secondary:hover,
[data-theme="dark"] a.btn-secondary:hover {
  background-color: var(--border-color) !important;
  color: var(--text-primary) !important;
  text-decoration: none !important;
}

.btn-danger,
a.btn-danger,
[data-theme="dark"] .btn-danger,
[data-theme="dark"] a.btn-danger {
  background-color: var(--danger-bg) !important;
  color: var(--danger-color) !important;
  border-color: var(--danger-color);
  text-decoration: none !important;
}

.btn-danger:hover,
a.btn-danger:hover,
[data-theme="dark"] .btn-danger:hover,
[data-theme="dark"] a.btn-danger:hover {
  background-color: var(--danger-color) !important;
  color: #ffffff !important;
  text-decoration: none !important;
}

.btn-sm {
  padding: 0.3rem 0.6rem;
  font-size: 0.82rem;
}

.btn-icon {
  padding: 0.45rem;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

/* Cozy Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card-header {
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Flash Messages */
.flash-container {
  margin-bottom: 1.25rem;
}

.flash-message {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
}

.flash-success {
  background-color: var(--success-bg);
  color: var(--success-color);
  border: 1px solid var(--success-color);
}

.flash-error {
  background-color: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid var(--danger-color);
}

.flash-warning {
  background-color: var(--warning-bg);
  color: var(--warning-color);
  border: 1px solid var(--warning-color);
}

.flash-info {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 3px var(--accent-yellow-glow);
}

textarea.form-control {
  min-height: 90px;
  resize: vertical;
}

/* Tooltips */
.tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: bold;
  cursor: help;
  position: relative;
}

.tooltip-icon:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background-color: #1e293b;
  color: #f8fafc;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: normal;
  white-space: pre-wrap;
  width: max-content;
  max-width: 260px;
  z-index: 200;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

/* Sleep Log List */
.log-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.log-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.log-item:hover {
  border-color: var(--accent-yellow);
  background-color: var(--bg-card-hover);
}

.log-main {
  font-size: 1rem;
  font-weight: 500;
}

.log-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.82rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.log-notes {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  font-style: italic;
}

/* Timeline Weekly View */
.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.timeline-row {
  display: grid;
  grid-template-columns: 140px 1fr 110px;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .timeline-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

.timeline-day-label {
  font-size: 0.95rem;
  font-weight: 600;
}

.timeline-day-date {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: normal;
}

.timeline-track-wrap {
  position: relative;
  width: 100%;
}

.timeline-track {
  position: relative;
  height: 28px;
  background-color: var(--timeline-track);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.timeline-bar {
  position: absolute;
  top: 2px;
  bottom: 2px;
  background: linear-gradient(90deg, var(--accent-yellow) 0%, var(--accent-yellow-hover) 100%);
  border-radius: 4px;
  box-shadow: 0 0 8px var(--accent-yellow-glow);
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.timeline-bar:hover {
  opacity: 0.85;
}

.timeline-hours-axis {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  padding: 0 2px;
}

.timeline-total {
  font-size: 0.9rem;
  font-weight: 600;
  text-align: right;
  color: var(--accent-yellow-hover);
}

[data-theme="dark"] .timeline-total {
  color: var(--accent-yellow);
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.stat-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--accent-yellow-hover);
  margin-top: 0.4rem;
}

[data-theme="dark"] .stat-value {
  color: var(--accent-yellow);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.styled-table th, .styled-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.styled-table th {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 600;
}

.styled-table tr:hover {
  background-color: var(--bg-card-hover);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  margin-top: auto;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 1.25rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* QR Code & 2FA */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  max-width: 340px;
  color: #1e293b;
}

.qr-code-img {
  width: 220px;
  height: 220px;
}

.manual-key {
  font-family: monospace;
  font-size: 0.95rem;
  background-color: #f1f5f9;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  word-break: break-all;
  user-select: all;
}

/* Timeline Detail Modal Popup & Backdrop */
.timeline-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  box-sizing: border-box;
  touch-action: none;
  overscroll-behavior: contain;
}

.timeline-modal-backdrop.open {
  display: flex;
}

.timeline-modal {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalPopIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPopIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.timeline-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.timeline-modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.timeline-modal-close {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.timeline-modal-close:hover {
  background-color: var(--danger-bg);
  color: var(--danger-color);
  border-color: var(--danger-color);
}

.timeline-modal-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.timeline-modal-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  background-color: var(--bg-primary);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.timeline-modal-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.timeline-modal-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-modal-notes {
  font-size: 0.95rem;
  font-weight: normal;
  color: var(--text-primary);
  font-style: italic;
  white-space: pre-wrap;
  word-break: break-word;
}

.timeline-modal-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 0.85rem;
}