/* ============================================================
   Ernährungstagebuch — Katrin Weber Brand Styles
   Farben: Olive-Grün (#819026), Beige (#eef1d8), Warm-White
   ============================================================ */

:root {
  --primary:       #819026;
  --primary-dark:  #5c6818;
  --primary-light: #eef1d8;
  --primary-mid:   #a0b030;
  --text:          #1a1a1a;
  --text-gray:     #555555;
  --white:         #ffffff;
  --bg:            #f7f6f1;
  --card:          #ffffff;
  --border:        #e5e2d8;
  --shadow:        0 2px 12px rgba(0,0,0,0.07);
  --radius:        14px;
  --radius-sm:     8px;
  --transition:    0.2s ease;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ---- Typography ---- */
h1, h2, h3 { font-weight: 700; line-height: 1.25; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; }
p  { color: var(--text-gray); }

/* ---- Layout ---- */
.container { max-width: 680px; margin: 0 auto; padding: 0 1rem; }

/* ---- Header ---- */
.app-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  max-width: 680px;
  margin: 0 auto;
}
.app-header .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  text-decoration: none;
}
.app-header .logo-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
}
.btn-ghost {
  background: none;
  border: none;
  color: var(--text-gray);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.btn-ghost:hover { background: var(--bg); }

/* ---- Day Tabs ---- */
.day-tabs {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: sticky;
  top: 57px;
  z-index: 99;
}
.day-tabs::-webkit-scrollbar { display: none; }
.day-tabs-inner {
  display: flex;
  padding: 0.5rem 1rem;
  gap: 0.4rem;
  min-width: max-content;
  max-width: 680px;
  margin: 0 auto;
}
.day-tab {
  padding: 0.5rem 1.1rem;
  border-radius: 20px;
  border: none;
  background: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-gray);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}
.day-tab:hover { background: var(--primary-light); color: var(--primary); }
.day-tab.active {
  background: var(--primary);
  color: var(--white);
}
.day-tab.locked {
  opacity: 0.4;
  cursor: default;
}
.day-tab.completed::after {
  content: ' ✓';
  font-size: 0.75rem;
}

/* ---- Main Content ---- */
.main-content {
  padding: 1.25rem 1rem 4rem;
  max-width: 680px;
  margin: 0 auto;
}

/* ---- Cards ---- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.card-header .icon {
  font-size: 1.1rem;
  width: 28px;
  text-align: center;
}
.card-header h3 { flex: 1; font-size: 0.95rem; }
.card-header .chevron {
  color: var(--text-gray);
  transition: transform var(--transition);
  font-size: 0.8rem;
}
.card-header.open .chevron { transform: rotate(180deg); }
.card-body { padding: 1.25rem; }
.card-body.hidden { display: none; }

/* ---- Form Elements ---- */
.field { margin-bottom: 1rem; }
.field:last-child { margin-bottom: 0; }
label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-gray);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="text"],
input[type="email"],
input[type="time"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition);
  -webkit-appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
}
textarea { resize: vertical; min-height: 80px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }

/* ---- Slider ---- */
.slider-field { margin-bottom: 1rem; }
.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}
.slider-label { font-size: 0.8rem; font-weight: 600; color: var(--text-gray); text-transform: uppercase; letter-spacing: 0.04em; }
.slider-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 1.5rem;
  text-align: right;
}
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  border: none;
  padding: 0;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.slider-ends {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-gray);
  margin-top: 0.2rem;
}

/* ---- Star Rating (Verdauung) ---- */
.star-rating { display: flex; gap: 0.4rem; }
.star {
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--border);
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.star.active { color: var(--primary); }

/* ---- Tag Chips ---- */
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }
.tag {
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-gray);
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  background: var(--white);
}
.tag:hover { border-color: var(--primary); color: var(--primary); }
.tag.active {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

/* ---- Toggle ---- */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
}
.toggle-label { font-size: 0.9rem; color: var(--text); }
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: background var(--transition);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; top: 3px;
  background: var(--white);
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle input:checked + .toggle-slider { background: var(--primary); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ---- Foto Upload ---- */
.photo-upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.photo-upload:hover { border-color: var(--primary); background: var(--primary-light); }
.photo-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  border: none;
  padding: 0;
}
.photo-upload .upload-icon { font-size: 1.75rem; margin-bottom: 0.3rem; }
.photo-upload .upload-text { font-size: 0.85rem; color: var(--text-gray); }
.photo-upload.has-image { padding: 0; border-style: solid; border-color: var(--border); }
.photo-upload.has-image img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: calc(var(--radius-sm) - 2px);
  display: block;
}
.photo-upload.uploading { opacity: 0.7; pointer-events: none; }
.upload-progress {
  font-size: 0.8rem;
  color: var(--primary);
  margin-top: 0.3rem;
}

/* ---- Meal Sections ---- */
.meal-section { border-top: 1px solid var(--border); }
.meal-section:first-child { border-top: none; }
.meal-header {
  display: flex;
  align-items: center;
  padding: 0.9rem 1.25rem;
  cursor: pointer;
  gap: 0.6rem;
  transition: background var(--transition);
}
.meal-header:hover { background: var(--bg); }
.meal-icon { font-size: 1.1rem; }
.meal-title { flex: 1; font-weight: 600; font-size: 0.9rem; }
.meal-status { font-size: 0.75rem; color: var(--text-gray); }
.meal-toggle { color: var(--text-gray); font-size: 0.8rem; transition: transform var(--transition); }
.meal-section.open .meal-toggle { transform: rotate(180deg); }
.meal-body { padding: 1rem 1.25rem 1.25rem; background: #fdfcfa; display: none; }
.meal-section.open .meal-body { display: block; }

/* ---- Save Indicator ---- */
.save-bar {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--white);
  padding: 0.6rem 1.25rem;
  border-radius: 20px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 200;
  white-space: nowrap;
}
.save-bar.saving { opacity: 1; }
.save-bar.saved { background: var(--primary); opacity: 1; }
.save-bar.error { background: #c0392b; opacity: 1; }
.save-spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); color: var(--white); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-light); }
.btn-full { width: 100%; }

/* ---- Login Page ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.login-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
}
.login-logo { font-size: 2.5rem; margin-bottom: 0.75rem; }
.login-title { font-size: 1.4rem; margin-bottom: 0.4rem; }
.login-subtitle { color: var(--text-gray); font-size: 0.9rem; margin-bottom: 2rem; }
.login-form { text-align: left; }
.login-footer {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: var(--text-gray);
}
.success-msg {
  background: var(--primary-light);
  border: 1.5px solid var(--primary);
  color: var(--primary-dark);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: left;
  display: none;
}
.success-msg.show { display: block; }
.error-msg {
  background: #ffeaea;
  border: 1.5px solid #c0392b;
  color: #c0392b;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  display: none;
}
.error-msg.show { display: block; }

/* ---- Empty State ---- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-gray);
}
.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.empty-state p { font-size: 0.9rem; }

/* ---- Admin: Client Grid ---- */
.client-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
.client-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}
.client-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.client-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}
.client-info { flex: 1; }
.client-name { font-weight: 600; font-size: 0.95rem; }
.client-meta { font-size: 0.8rem; color: var(--text-gray); margin-top: 0.1rem; }
.client-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  background: var(--primary-light);
  color: var(--primary);
}
.client-badge.done { background: #f0f0f0; color: var(--text-gray); }

/* ---- Admin: Detail View ---- */
.admin-detail { display: none; }
.admin-detail.active { display: block; }
.back-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.25rem 0;
  margin-bottom: 1.25rem;
}
.admin-day-nav {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.admin-day-btn {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: none;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-gray);
  transition: all var(--transition);
}
.admin-day-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}
.admin-day-btn.has-data { border-color: var(--primary-mid); color: var(--primary); }

/* ---- Admin: Data Display ---- */
.data-section { margin-bottom: 1.5rem; }
.data-section h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-gray);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}
.data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.data-item { background: var(--bg); border-radius: var(--radius-sm); padding: 0.6rem 0.75rem; }
.data-item .data-label { font-size: 0.72rem; color: var(--text-gray); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.data-item .data-value { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-top: 0.1rem; }
.meal-photo-thumb {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.4rem; }
.tag-chip {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

/* ---- Loading ---- */
.loader {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
}
.loader-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .two-col { grid-template-columns: 1fr; }
  .three-col { grid-template-columns: 1fr 1fr; }
  .login-card { padding: 2rem 1.25rem; }
  .data-grid { grid-template-columns: 1fr; }
}

/* ---- Admin Header ---- */
.admin-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-top: 0.5rem;
}
.admin-title-row h1 { font-size: 1.3rem; }
.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.stat-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}
.stat-number { font-size: 1.75rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.75rem; color: var(--text-gray); margin-top: 0.1rem; }

/* ---- Day completed banner ---- */
.day-done-banner {
  background: var(--primary-light);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--primary-dark);
  font-weight: 500;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}