:root {
  --red: #B22234;
  --red-light: #D64045;
  --blue: #3C3B6E;
  --blue-light: #4A5899;
  --white: #FFFFFF;
  --cream: #FFF8F0;
  --gold: #FFD700;
  --navy: #1B1B4B;
  --text: #1a1a2e;
  --text-light: #555;
  --border: #ddd;
  --shadow: 0 2px 8px rgba(0,0,0,0.12);
  --radius: 8px;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--cream);
  color: var(--text);
  min-height: 100vh;
}

/* Header with patriotic banner */
.site-header {
  background: linear-gradient(135deg, var(--blue) 0%, var(--navy) 50%, #0d0d2b 100%);
  color: var(--white);
  padding: 0;
  position: relative;
  overflow: hidden;
  min-height: 130px;
}

.header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 28px 20px 22px;
}

.header-250 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 20px rgba(255,215,0,0.5), 2px 2px 4px rgba(0,0,0,0.4);
  letter-spacing: 3px;
  margin-bottom: 2px;
  animation: glow250 3s ease-in-out infinite;
}

@keyframes glow250 {
  0%, 100% { text-shadow: 0 0 20px rgba(255,215,0,0.5), 2px 2px 4px rgba(0,0,0,0.4); }
  50% { text-shadow: 0 0 35px rgba(255,215,0,0.8), 0 0 60px rgba(255,215,0,0.3), 2px 2px 4px rgba(0,0,0,0.4); }
}

.site-title {
  font-size: 2rem;
  font-weight: 800;
  text-shadow: 2px 2px 6px rgba(0,0,0,0.4), 0 0 30px rgba(255,255,255,0.1);
  letter-spacing: 1.5px;
  line-height: 1.2;
}

.site-subtitle {
  font-size: 1rem;
  opacity: 0.9;
  margin-top: 6px;
  font-weight: 300;
  letter-spacing: 0.5px;
}

.site-subtitle .accent {
  color: var(--gold);
  font-weight: 700;
  text-shadow: 0 0 10px rgba(255,215,0,0.4);
}

/* Stars decoration in header */
.stars-decoration {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.star {
  position: absolute;
  color: rgba(255,255,255,0.15);
  font-size: 1.2rem;
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.2); }
}

/* Red stripe accent below header */
.stripe-accent {
  height: 8px;
  background: linear-gradient(
    90deg,
    var(--red) 0%, var(--red) 15%,
    var(--white) 15%, var(--white) 20%,
    var(--red) 20%, var(--red) 35%,
    var(--white) 35%, var(--white) 40%,
    var(--red) 40%, var(--red) 55%,
    var(--white) 55%, var(--white) 60%,
    var(--red) 60%, var(--red) 75%,
    var(--white) 75%, var(--white) 80%,
    var(--red) 80%, var(--red) 100%
  );
  box-shadow: 0 2px 4px rgba(178,34,52,0.3);
}

/* Navigation */
nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  max-width: 1200px;
  margin: 0 auto;
  overflow-x: auto;
}

.nav-btn {
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.nav-btn:hover {
  background: rgba(60,59,110,0.08);
  color: var(--blue);
}

.nav-btn.active {
  background: var(--blue);
  color: var(--white);
}

.nav-spacer { flex: 1; }

.nav-user {
  font-size: 0.85rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-user .family-badge {
  background: var(--red);
  color: var(--white);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.nav-profile-link {
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.nav-profile-link:hover {
  color: var(--blue);
}

.btn-logout {
  padding: 4px 12px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-light);
}

.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* Main content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 16px;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--blue);
}

/* Buttons */
.btn {
  padding: 8px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover { background: var(--blue-light); }

.btn-red {
  background: var(--red);
  color: var(--white);
}
.btn-red:hover { background: var(--red-light); }

.btn-outline {
  background: none;
  border: 2px solid var(--blue);
  color: var(--blue);
}
.btn-outline:hover { background: var(--blue); color: var(--white); }

.btn-small {
  padding: 4px 12px;
  font-size: 0.8rem;
}

.btn-gold {
  background: var(--gold);
  color: var(--navy);
}
.btn-gold:hover { background: #e6c200; }

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.9rem;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  transition: border-color 0.2s;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.alert-error {
  background: #fce4e4;
  color: #c0392b;
  border: 1px solid #f5c6cb;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

/* Login page */
.login-container {
  max-width: 420px;
  margin: 40px auto;
}

.login-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  padding: 32px;
}

.login-card h2 {
  text-align: center;
  color: var(--blue);
  margin-bottom: 24px;
  font-size: 1.4rem;
}

.login-toggle {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.login-toggle a {
  color: var(--blue);
  cursor: pointer;
  text-decoration: underline;
}

/* Flag animation on login */
.flag-container {
  text-align: center;
  font-size: 3rem;
  margin-bottom: 8px;
  animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
  0%, 100% { transform: rotate(-5deg); }
  50% { transform: rotate(5deg); }
}

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
  /* Header */
  .site-header { min-height: 90px; }
  .header-content { padding: 16px 12px 14px; }
  .header-250 { font-size: 1.4rem; letter-spacing: 2px; }
  .site-title { font-size: 1.15rem; }
  .site-subtitle { font-size: 0.8rem; }

  /* Nav: two rows — buttons on top, user info below */
  .nav-inner {
    flex-wrap: wrap;
    padding: 6px 8px;
    gap: 4px;
  }
  .nav-btn {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
  .nav-spacer { display: none; }
  .nav-user {
    width: 100%;
    justify-content: center;
    padding-top: 4px;
    border-top: 1px solid #eee;
    margin-top: 2px;
    flex-wrap: wrap;
    gap: 6px;
  }

  /* Main content */
  .main-content {
    padding: 10px 8px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  }

  /* Cards */
  .card { padding: 14px 12px; }
  .card-header { flex-wrap: wrap; gap: 8px; }

  /* Modals: near full-screen on mobile */
  .modal-overlay { padding: 8px; align-items: flex-start; padding-top: 20px; }
  .modal {
    padding: 16px 14px;
    max-height: 85vh;
    border-radius: 10px;
  }
  .modal-title { font-size: 1.1rem; }
  .modal-actions { flex-wrap: wrap; }
  .modal-actions .btn { flex: 1; min-width: 0; justify-content: center; }

  /* Tables */
  th, td { padding: 8px 8px; font-size: 0.82rem; white-space: nowrap; }

  /* Buttons: bigger touch targets */
  .btn { padding: 10px 18px; min-height: 44px; }
  .btn-small { padding: 8px 14px; min-height: 36px; font-size: 0.8rem; }
  .btn-logout { padding: 8px 14px; min-height: 36px; }

  /* Form inputs: 16px to prevent iOS zoom */
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px;
    padding: 12px;
  }

  /* Todo split: already handled (1fr), tighten padding */
  .todo-panel { padding: 12px; }
  .todo-add-row input { font-size: 16px; }

  /* Meal items: stack on narrow screens */
  .meal-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  /* RSVP: bigger checkboxes for touch */
  .rsvp-member-checkbox {
    padding: 8px 12px;
    font-size: 0.9rem;
  }
  .rsvp-member-checkbox input {
    width: 20px;
    height: 20px;
  }

  /* Emoji picker: fill width, bigger targets */
  .emoji-picker-container {
    max-height: 180px;
    gap: 2px;
    padding: 6px;
  }
  .emoji-option {
    width: 40px;
    height: 40px;
    font-size: 1.3rem;
  }

  /* Photo grid */
  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
  }
  .photo-card img { height: 140px; }

  /* Tabs */
  .tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab { padding: 8px 14px; font-size: 0.85rem; white-space: nowrap; }

  /* Login */
  .login-container { margin: 20px auto; }
  .login-card { padding: 20px 16px; }
  .login-card h2 { font-size: 1.2rem; }
  .flag-container { font-size: 2.4rem; }

  /* Family member rows */
  .family-member-row { padding: 10px 8px; }

  /* Lightbox */
  .lightbox img { max-width: 95vw; max-height: 85vh; }
}

/* Extra small phones (iPhone SE, etc.) */
@media (max-width: 380px) {
  .header-250 { font-size: 1.1rem; letter-spacing: 1px; }
  .site-title { font-size: 1rem; }
  .nav-btn { padding: 6px 8px; font-size: 0.75rem; }
  .card { padding: 10px 8px; }
  .modal { padding: 12px 10px; }
  .btn { padding: 8px 14px; font-size: 0.82rem; }
  .photo-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}

/* Safe area insets for notched phones */
@supports (padding: env(safe-area-inset-top)) {
  .site-header {
    padding-top: env(safe-area-inset-top);
  }
  nav {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .main-content {
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
  }
}

/* Hidden utility */
.hidden { display: none !important; }

/* Emoji in events */
.event-emoji {
  font-size: 1.2rem;
  margin-right: 4px;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-blue { background: var(--blue); color: var(--white); }
.badge-red { background: var(--red); color: var(--white); }
.badge-gold { background: var(--gold); color: var(--navy); }

/* Table */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  color: var(--blue);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Amount formatting */
.amount-positive { color: var(--red); font-weight: 600; }
.amount-negative { color: #27ae60; font-weight: 600; }
.amount-zero { color: var(--text-light); }

/* Photo grid */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.photo-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.2s;
}

.photo-card:hover { transform: scale(1.03); }

.photo-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.photo-card .photo-info {
  padding: 8px 10px;
  background: var(--white);
  font-size: 0.8rem;
  color: var(--text-light);
}

/* Fireworks canvas */
#fireworks-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Meal items */
.meal-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

.meal-item:last-child { border-bottom: none; }

.meal-item-name { font-weight: 500; }
.meal-item-qty { color: var(--text-light); font-size: 0.85rem; }
.meal-item-claimed { color: #27ae60; font-size: 0.85rem; font-weight: 500; }

/* RSVP badges */
.rsvp-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 8px;
}

.rsvp-badge {
  background: #e8f5e9;
  color: #2e7d32;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
}

.rsvp-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.rsvp-member-checkbox {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: #f8f9fa;
  border: 1px solid #ddd;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
}

.rsvp-member-checkbox:hover {
  background: #e8f0fe;
  border-color: var(--blue);
}

.rsvp-member-checkbox input:checked + span {
  color: var(--blue);
  font-weight: 600;
}

.rsvp-member-checkbox input {
  accent-color: var(--blue);
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.9);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border);
}

.tab {
  padding: 8px 20px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.tab.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Checkbox styling for meal claims */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

/* Emoji picker */
.emoji-picker-container {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-height: 200px;
  overflow-y: auto;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #f9f9f9;
}

.emoji-option {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  border: none;
  background: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s;
}

.emoji-option:hover { background: #e0e0e0; }
.emoji-option.selected { background: var(--blue); border-radius: 6px; }

/* Todo list */
.todo-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 768px) {
  .todo-split {
    grid-template-columns: 1fr;
  }
}

.todo-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.todo-panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blue);
}

.todo-add-row {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.todo-add-row input {
  flex: 1;
  padding: 8px 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.todo-add-row input:focus {
  outline: none;
  border-color: var(--blue);
}

.todo-list {
  min-height: 60px;
}

.todo-empty {
  color: #999;
  font-size: 0.85rem;
  text-align: center;
  padding: 20px 0;
  font-style: italic;
}

.todo-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  border-bottom: 1px solid #f0f0f0;
  transition: background 0.15s;
}

.todo-item:hover {
  background: #f8f9fa;
}

.todo-item:last-child {
  border-bottom: none;
}

.todo-item-done {
  opacity: 0.6;
}

.todo-check {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.todo-text {
  flex: 1;
  font-size: 0.9rem;
}

.todo-strikethrough {
  text-decoration: line-through;
  color: #999;
}

.todo-author {
  font-size: 0.75rem;
  color: #999;
  margin-left: 4px;
}

.todo-delete {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.todo-delete:hover {
  color: var(--red);
}

/* Family member rows in profile */
.family-member-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px solid #f0f0f0;
}

.family-member-row:last-child {
  border-bottom: none;
}

.family-member-name {
  font-size: 0.9rem;
  font-weight: 500;
}

.emoji-avatar-btn {
  border: 2px dashed #ccc;
  background: #f9f9f9;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  transition: border-color 0.2s;
}

.emoji-avatar-btn:hover {
  border-color: var(--blue);
  background: #eef;
}