/* ═══════════════════════════════════════════════
   FAHRTENBUCH · style.css  —  Light Theme
   Zielgerät: Samsung Galaxy S23 Ultra
═══════════════════════════════════════════════ */

:root {
  --bg:             #f0f4fb;
  --bg-card:        #ffffff;
  --bg-input:       #f5f7fc;
  --bg-input-focus: #eef2ff;
  --accent:         #2563eb;
  --accent-dark:    #1d4ed8;
  --accent-light:   #eff6ff;
  --accent-glow:    rgba(37, 99, 235, 0.15);
  --danger:         #ef4444;
  --danger-bg:      #fef2f2;
  --success:        #16a34a;
  --success-bg:     #f0fdf4;
  --warning:        #d97706;
  --text:           #111827;
  --text-sub:       #6b7280;
  --border:         #dde3f0;
  --border-focus:   #2563eb;
  --shadow:         0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-card:    0 2px 8px rgba(0,0,0,0.07);
  --nav-h:          72px;
  --header-h:       60px;
  --radius:         14px;
  --radius-sm:      10px;
}

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

html, body { height: 100%; overflow: hidden; }

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

.screen { position: fixed; inset: 0; display: flex; flex-direction: column; }
.screen.hidden { display: none; }

/* LOGIN */
#screen-login {
  background: var(--bg);
  justify-content: center;
  align-items: center;
  padding: 24px;
}
.login-wrap { width: 100%; max-width: 420px; display: flex; flex-direction: column; gap: 16px; }
.login-logo { text-align: center; margin-bottom: 12px; }
.plate-badge {
  display: inline-block;
  background: var(--text);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 4px;
  padding: 10px 24px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.login-logo h1 { font-size: 26px; font-weight: 700; color: var(--text); }
.login-sub { color: var(--text-sub); font-size: 15px; margin-top: 4px; }

/* HEADER */
.app-header {
  height: var(--header-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  box-shadow: var(--shadow);
}
.header-left { display: flex; align-items: center; gap: 12px; }
.header-plate { font-size: 18px; font-weight: 700; letter-spacing: 3px; color: var(--text); }
.offline-badge {
  background: #fef3c7; color: #92400e; font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px; border: 1px solid #fde68a;
}
.offline-badge.hidden { display: none; }

/* MAIN */
.app-main { flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; padding-bottom: calc(var(--nav-h) + 16px); }

.tab { padding: 20px 16px 8px; animation: fadeIn 0.18s ease; }
.tab.hidden { display: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

.tab-title { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 20px; }

/* FORM ELEMENTS */
.field-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field-group label { font-size: 13px; font-weight: 600; color: var(--text-sub); text-transform: uppercase; letter-spacing: 0.5px; }
.required { color: var(--accent); }

.field-group input,
.field-group select {
  width: 100%;
  height: 54px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  padding: 0 14px;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: var(--shadow);
}
.field-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 42px;
  cursor: pointer;
}
.field-group input:focus,
.field-group select:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.field-group input::placeholder { color: #b0b8cc; }
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator { opacity: 0.5; cursor: pointer; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-hint { font-size: 12px; color: var(--text-sub); margin-top: 2px; }

.km-result {
  background: var(--accent-light);
  border: 1.5px solid #bfdbfe;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 14px;
  text-align: center;
}
.km-result strong { color: var(--accent); font-size: 20px; font-weight: 700; }
.km-result.hidden { display: none; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 54px; padding: 0 24px; border: none;
  border-radius: var(--radius-sm); font-family: inherit;
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: opacity 0.15s, transform 0.1s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 2px 8px rgba(37,99,235,0.3); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--bg-card); color: var(--text); border: 1.5px solid var(--border); box-shadow: var(--shadow); margin-top: 10px; }
.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 2px 8px rgba(239,68,68,0.25); }
.btn-block { width: 100%; display: flex; }
.btn-text-sm { background: none; border: none; color: var(--text-sub); font-family: inherit; font-size: 14px; font-weight: 500; cursor: pointer; padding: 8px 4px; }
.btn-text-sm:hover { color: var(--text); }

/* BOTTOM NAV */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  display: grid; grid-template-columns: repeat(3, 1fr);
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -2px 12px rgba(0,0,0,0.06);
}
.nav-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; background: none; border: none; color: #9ca3af;
  font-family: inherit; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer;
  transition: color 0.15s; -webkit-tap-highlight-color: transparent;
}
.nav-item svg { width: 22px; height: 22px; transition: transform 0.15s; }
.nav-item.active { color: var(--accent); }
.nav-item.active svg { transform: scale(1.1); }

/* TRIP LIST FILTER */
.list-filter-bar {
  margin-bottom: 10px;
}
.list-filter-select {
  width: 100%;
  height: 52px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  padding: 0 42px 0 14px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.list-filter-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.list-summary {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  text-align: center;
  background: var(--accent-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  margin-bottom: 14px;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* TRIP LIST */
.trip-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px; cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-card);
  -webkit-tap-highlight-color: transparent;
}
.trip-card:active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.trip-card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
.trip-date { font-size: 13px; font-weight: 600; color: var(--text-sub); text-transform: uppercase; letter-spacing: 0.5px; }
.trip-purpose-badge { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 20px; text-transform: uppercase; letter-spacing: 0.3px; }
.purpose-Arbeitsweg   { background: #dbeafe; color: #1d4ed8; }
.purpose-Kundenbesuch { background: #fef9c3; color: #a16207; }
.purpose-Privat       { background: #dcfce7; color: #15803d; }
.trip-route { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 8px; line-height: 1.4; }
.trip-route-arrow { color: var(--text-sub); margin: 0 6px; }
.trip-description { font-size: 13px; color: var(--text-sub); margin-bottom: 8px; font-style: italic; }
.trip-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-sub); }
.trip-meta-km { color: var(--accent); font-weight: 700; }
.trip-edit-hint { font-size: 12px; color: #d1d5db; text-align: right; margin-top: 10px; }

.trip-card.trip-incomplete { border-color: #fcd34d; border-style: dashed; background: #fffbeb; }
.trip-card.trip-incomplete .trip-edit-hint { color: var(--warning); font-weight: 600; }
.incomplete-hint { color: var(--warning); font-weight: 600; }

.empty-hint { text-align: center; color: var(--text-sub); font-size: 15px; margin-top: 48px; line-height: 1.9; }

/* EXPORT */
.export-range-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  margin-top: 4px;
}

.export-info {
  background: var(--bg-card); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px; font-size: 15px;
  color: var(--text-sub); margin-bottom: 16px; text-align: center;
  min-height: 52px; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
}
.export-info strong { color: var(--text); }

/* MESSAGES */
.msg-error { background: var(--danger-bg); border: 1.5px solid #fecaca; color: #b91c1c; border-radius: var(--radius-sm); padding: 14px 16px; font-size: 14px; font-weight: 500; margin-bottom: 16px; }
.msg-success { background: var(--success-bg); border: 1.5px solid #bbf7d0; color: var(--success); border-radius: var(--radius-sm); padding: 14px 16px; font-size: 15px; font-weight: 600; margin-bottom: 16px; text-align: center; }
.hidden { display: none !important; }

/* MODAL */
.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: flex-end; }
.modal.hidden { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.4); backdrop-filter: blur(2px); }
.modal-panel {
  position: relative; z-index: 1; width: 100%;
  background: var(--bg);
  border-top: 1.5px solid var(--border);
  border-radius: 20px 20px 0 0;
  max-height: 92vh; display: flex; flex-direction: column;
  animation: slideUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.12);
}
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 20px 16px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.modal-header h3 { font-size: 18px; font-weight: 700; color: var(--text); }
.btn-close { background: var(--bg-input); border: 1px solid var(--border); color: var(--text-sub); width: 36px; height: 36px; border-radius: 50%; font-size: 14px; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.modal-body { flex: 1; overflow-y: auto; padding: 20px 20px 8px; -webkit-overflow-scrolling: touch; }
.modal-footer { padding: 16px 20px; padding-bottom: calc(16px + env(safe-area-inset-bottom)); border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr 1fr; gap: 12px; flex-shrink: 0; background: var(--bg-card); }
.modal-footer .btn { height: 52px; }

.btn.loading { opacity: 0.65; pointer-events: none; }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }