/* Logbook PWA styles: light/dark with app-like bottom bar */
:root {
  /* Light theme (default) */
  --bg: #f6f8fc;
  --bg-grad-top: #ffffff;
  --bg-grad-bot: #f6f8fc;
  --card: #ffffff;
  --text: #0f172a;
  --text-secondary: #64748b;
  --muted: #94a3b8;
  --primary: #4F46E5;  /* Updated to consistent blue */
  --primary-600: #4338CA;
  --primary-700: #3730A3;
  --border: #e5e7eb;
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.06);
  
  /* Typography scale to match Figma */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --bg-grad-top: #0c1728;
    --bg-grad-bot: #0b1220;
    --card: #111827;
    --text: #e5e7eb;
    --text-secondary: #94a3b8;
    --muted: #64748b;
    --primary: #4F46E5;  /* Updated to consistent blue */
    --primary-600: #4338CA;
    --primary-700: #3730A3;
    --border: #1f2937;
    --shadow: 0 10px 30px rgba(0,0,0,0.25);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.5;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-grad-top) 0%, var(--bg-grad-bot) 100%);
  color-scheme: light dark;
  overflow-x: hidden;
  font-size: var(--text-base);
}

.container { max-width: 960px; margin: 0 auto; padding: 1rem; }
header.container { 
  display: flex; 
  align-items: baseline; 
  gap: 1rem; 
  padding-top: calc(1rem + env(safe-area-inset-top)); 
}

h1 { 
  margin: 0.5rem 0; 
  font-size: var(--text-3xl); 
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 { 
  font-size: var(--text-xl); 
  font-weight: 600;
  margin: 0 0 1rem 0;
  letter-spacing: -0.025em;
}

#status { 
  color: var(--text-secondary); 
  font-size: var(--text-sm); 
}

/* Main content should not be hidden by bottom nav */
.main-content { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px; /* large corners */
  padding: 1.5rem;
  margin: 1rem 0;
  box-shadow: var(--shadow); /* softer in light mode */
  /* Corner smoothing for iOS-like appearance */
  -webkit-mask-image: -webkit-radial-gradient(white, black);
}

.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }

label { 
  display: grid; 
  gap: 0.25rem; 
  font-size: 1rem; /* Increased from 0.95rem to prevent iOS zoom */
  color: var(--muted); 
}
input, select, textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--card) 92%, black 0%);
  color: var(--text);
  font-size: 1rem; /* Increased to 16px to prevent iOS Safari zoom */
}
textarea { resize: vertical; }

.actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
button {
  appearance: none;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-600) 100%);
  color: white; font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { border-bottom: 1px solid var(--border); padding: 0.5rem 0.4rem; text-align: left; }
th { color: var(--muted); font-weight: 600; }
tr:hover td { background: rgba(2, 6, 23, 0.03); }

.chart { margin-top: 0.75rem; }

footer p { text-align: center; font-size: 0.9rem; color: var(--muted); }
.muted { color: var(--muted); }

/* Utility */
.hidden { display: none !important; }
.success { color: #16a34a; }
.error { color: #ef4444; }

/* Bottom Sheet Styles */
.add-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 1rem;
  font-size: var(--text-sm);
  font-weight: 500;
  border: none;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
}

.add-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(2, 6, 23, 0.1);
  border-color: var(--primary);
}

.add-btn i {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.add-btn span {
  font-weight: 500;
}

.bottom-sheet-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); z-index: 1000;
  display: none; align-items: flex-end;
}
.bottom-sheet-overlay.show { display: flex; }
.bottom-sheet {
  background: var(--card);
  width: 100%; max-height: 90vh;
  border-radius: 1rem 1rem 0 0; overflow: hidden;
  transform: translateY(100%); transition: transform 0.3s ease;
  border: 1px solid var(--border);
}
.bottom-sheet-overlay.show .bottom-sheet { transform: translateY(0); }
.bottom-sheet-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem; border-bottom: 1px solid var(--border);
}
.bottom-sheet-header h3 { margin: 0; color: var(--text); }
.close-btn { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--muted); padding: 0.25rem; }
.close-btn:hover { color: var(--text); }
.bottom-sheet-content { padding: 1rem; max-height: calc(90vh - 80px); overflow-y: auto; }

.entry-form button[type="submit"] {
  width: 100%; margin-top: 1rem; padding: 0.75rem;
  background: var(--primary-600); color: white; border: none; border-radius: 0.75rem; font-size: 1rem; cursor: pointer;
}
.entry-form button[type="submit"]:hover { background: var(--primary-700); }

/* Bottom Navigation Bar */
.bottom-nav {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 23px;
  z-index: 100;
  background: rgba(229, 233, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  display: flex;
  gap: 2px;
  padding: 2px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  max-width: calc(100vw - 48px);
  min-width: 280px;
}

.bottom-nav .nav-tab {
  padding: 12px;
  border-radius: 50px;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  min-width: 0;
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  aspect-ratio: 1;
}

.bottom-nav .nav-tab i {
  width: 20px;
  height: 20px;
}

/* Remove the span text from nav tabs */
.bottom-nav .nav-tab span {
  display: none;
}

.bottom-nav .nav-tab.active {
  background: white;
  color: var(--text);
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.08);
}

.bottom-nav .nav-tab:hover:not(.active) {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

/* Dark mode adjustments for bottom nav */
@media (prefers-color-scheme: dark) {
  .bottom-nav {
    background: rgba(17, 24, 39, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }
  
  .bottom-nav .nav-tab.active {
    background: rgba(255, 255, 255, 0.9);
    color: #0f172a;
  }
  
  .bottom-nav .nav-tab:hover:not(.active) {
    background: rgba(255, 255, 255, 0.05);
  }
}

/* Page System */
.page { display: none; }
.page.active { display: block; }

/* Calendar Grid */
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.5rem; margin: 1rem 0; }
.calendar-day {
  aspect-ratio: 1; border-radius: 50%; background: var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: var(--muted);
}
.calendar-day.active { background: var(--primary); color: white; }
.calendar-day.today { outline: 2px solid var(--primary); outline-offset: 2px; }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin: 1rem 0; }
.stat-card { text-align: center; padding: 1rem; background: color-mix(in oklab, var(--card) 94%, black 0%); border-radius: 0.75rem; border: 1px solid var(--border); }
.stat-card h3 { margin: 0 0 0.5rem 0; font-size: 1.8rem; color: var(--primary); }
.stat-card p { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* Latest Entries */
.latest-entries { display: grid; gap: 1rem; }
.latest-entry { padding: 1rem; background: color-mix(in oklab, var(--card) 94%, black 0%); border-radius: 0.75rem; border: 1px solid var(--border); }
.latest-entry h4 { margin: 0 0 0.5rem 0; color: var(--primary); }
.latest-entry p { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* Simple Activity View */
.activity-simple {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 1rem 0;
}

.activity-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--border);
  transition: all 0.2s ease;
  cursor: pointer;
}

.activity-dot.has-activity {
  background: #4F46E5;
}

.activity-dot.today {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.activity-legend {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 1rem;
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.activity-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.activity-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Mobile responsive adjustments */
@media (max-width: 640px) {
  .nav-tabs {
    flex-wrap: wrap;
  }
  
  .nav-tab {
    flex: 1;
    min-width: 100px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .add-entry-grid {
    grid-template-columns: repeat(4, 1fr); /* Keep 4 columns on mobile for iPhone */
    gap: 0.5rem; /* Even smaller gap on mobile */
  }
  
  .add-btn.icon-only {
    padding: 1rem; /* Smaller padding on mobile */
    border-radius: 12px; /* Smaller radius on mobile */
  }
  
  .add-btn.icon-only i {
    width: 20px; /* Smaller icons on mobile */
    height: 20px;
  }
}

/* Improved dark mode for add buttons */
@media (prefers-color-scheme: dark) {
  .add-btn:hover {
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
  }
}

/* Add entry grid and icon-only buttons */
.add-entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem; /* Reduced from 1rem to fit 4 buttons better on iPhone */
  margin-top: 1rem;
}

.add-btn.icon-only {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem; /* Slightly reduced from 1.5rem */
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px; /* Slightly smaller radius */
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
  aspect-ratio: 1;
  min-width: 0; /* Allow buttons to shrink */
}

.add-btn.icon-only:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(2, 6, 23, 0.1);
  border-color: var(--primary);
}

.add-btn.icon-only i {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

/* Refresh button styling */
.refresh-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.refresh-btn:hover {
  background: var(--primary-600);
  transform: translateY(-1px);
}

.refresh-btn i {
  width: 20px;
  height: 20px;
}

/* Form section headings */
.form-section-heading {
  margin: 1.5rem 0 0.75rem 0;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

/* Activity calendar matching Figma design */
.activity-label {
  color: var(--text);
  font-weight: 600;
  font-size: var(--text-base);
  margin: 0 0 1rem 0;
}

.activity-calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  padding: 1rem 0;
}

.activity-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--border);
  transition: all 0.2s ease;
  cursor: pointer;
}

.activity-dot.has-activity {
  background: #4F46E5;
}

.activity-dot.today {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Last data sections - smaller and tighter spacing */
.last-data {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0.5rem 0 0.75rem 0;
}

.data-item {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text);
  padding: 0.25rem 0;
}

.data-date {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 400;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .add-btn.icon-only:hover {
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
  }
}

/* Time Period Selector */
.time-period-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  background: color-mix(in oklab, var(--card) 94%, black 0%);
  border-radius: 12px;
  padding: 0.25rem;
  border: 1px solid var(--border);
}

.period-btn {
  flex: 1;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.period-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
}

.period-btn:hover:not(.active) {
  background: rgba(79, 70, 229, 0.1);
  color: var(--text);
}

@media (max-width: 640px) {
  .time-period-selector {
    flex-direction: column;
    gap: 0.25rem;
  }
  
  .period-btn {
    text-align: center;
  }
}

/* Extra small screens - if really tight, go to 2 columns */
@media (max-width: 375px) {
  .add-entry-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
}

/* Decimal input group for iOS comma workaround */
.decimal-input-label {
  display: grid;
  gap: 0.25rem;
  font-size: 1rem;
  color: var(--muted);
}

.decimal-input-group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.6rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--card) 92%, black 0%);
}

.decimal-input-group input {
  border: none;
  background: transparent;
  padding: 0;
  width: auto;
  flex: 1;
  font-size: 1rem;
  color: var(--text);
}

.decimal-input-group input:first-child {
  flex: 2; /* Whole number gets more space */
}

.decimal-input-group input:last-of-type {
  flex: 1; /* Decimal part gets less space */
  max-width: 3rem;
}

.decimal-separator {
  color: var(--text);
  font-weight: 600;
  font-size: 1.2rem;
}

.unit-label {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: 0.25rem;
}