:root {
    --primary: #1e3a8a;
    --primary-hover: #172554;
    --primary-light: #eff6ff;
    --accent: #0284c7;
    --success: #16a34a;
    --success-light: #f0fdf4;
    --warning: #d97706;
    --warning-light: #fffbeb;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 24px 20px 60px 20px;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-mark {
    font-size: 32px;
    background: var(--primary-light);
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.app-header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stats-bar {
    display: flex;
    gap: 8px;
    background: #f1f5f9;
    padding: 4px;
    border-radius: 20px;
}

.stat-pill {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 16px;
    color: var(--text-secondary);
}

.stat-pill strong {
    color: var(--primary);
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
}

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

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background-color: #e2e8f0;
    color: var(--text-primary);
}

.btn-track {
    background-color: #fef08a;
    color: #854d0e;
    border: 1px solid #fde047;
}
.btn-track.is-tracking {
    background-color: var(--success-light);
    color: var(--success);
    border-color: #bbf7d0;
}

.btn-danger-outline {
    background: transparent;
    color: var(--danger);
    border: 1px solid #fecaca;
}
.btn-danger-outline:hover {
    background: var(--danger-light);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* Search Box */
.search-section {
    position: relative;
    margin-bottom: 24px;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 18px;
    font-size: 18px;
    color: var(--text-muted);
}

#horseSearchInput {
    width: 100%;
    padding: 16px 45px 16px 48px;
    font-size: 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#horseSearchInput:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.12);
}

.clear-search-btn {
    position: absolute;
    right: 18px;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-muted);
    cursor: pointer;
}

/* Search Dropdown */
.search-results-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 420px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.search-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 18px;
    border-bottom: 1px solid #f1f5f9;
    cursor: pointer;
    transition: background-color 0.15s;
}

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

.search-item:hover {
    background-color: var(--primary-light);
}

.search-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-item-name {
    font-weight: 600;
    font-size: 15px;
}

/* Tabs */
.nav-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 12px 18px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.15s ease;
}

.tab-btn:hover {
    color: var(--primary);
}

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

.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

/* Toolbar & Filters */
.section-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-group {
    display: flex;
    gap: 6px;
}

.filter-chip {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
}

.filter-chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.search-mini input {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    outline: none;
}

/* Horses Grid */
.horses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 18px;
}

.horse-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s, box-shadow 0.15s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.horse-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.horse-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.badges-row {
    display: flex;
    gap: 6px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
}

.badge-active { background: var(--success-light); color: var(--success); }
.badge-archived { background: var(--warning-light); color: var(--warning); }
.badge-code { background: #f1f5f9; color: #475569; }
.badge-rating { background: #e0f2fe; color: #0284c7; }

.latest-note-box {
    background: #f8fafc;
    border-left: 3px solid var(--accent);
    padding: 10px 12px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 13px;
    color: var(--text-secondary);
    margin: 12px 0;
    min-height: 48px;
}

.card-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
    padding-top: 12px;
    margin-top: 6px;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(3px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: var(--bg-card);
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    padding: 24px;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    margin-bottom: 16px;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-actions-bar {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 20px;
}

/* Add Note Box */
.add-note-card {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
}

.add-note-card h4 {
    font-size: 14px;
    margin-bottom: 10px;
}

.note-input-row {
    display: flex;
    gap: 10px;
}

.note-input-row input[type="date"] {
    width: 150px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.note-input-row textarea {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: inherit;
    resize: vertical;
}

/* Timeline of Notes */
.notes-timeline-container h4 {
    font-size: 14px;
    margin-bottom: 12px;
}

.timeline-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-bottom: 10px;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.timeline-date {
    background: #e0f2fe;
    color: #0369a1;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

.timeline-actions {
    display: flex;
    gap: 6px;
}

.timeline-actions button {
    background: none;
    border: none;
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
}
.timeline-actions button:hover {
    color: var(--text-primary);
}

.timeline-text {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

/* Card General */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.scanner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.text-muted {
    color: var(--text-muted);
    font-size: 14px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1e293b;
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    font-weight: 500;
    display: none;
    z-index: 2000;
}
.toast.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

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

@media (max-width: 768px) {
    .app-header { flex-direction: column; align-items: stretch; }
    .header-right { justify-content: space-between; }
    .note-input-row { flex-direction: column; }
    .note-input-row input[type="date"] { width: 100%; }
}