/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #16a34a;
    --warning-color: #ca8a04;
    --danger-color: #dc2626;
    --bg-color: #f8fafc;
    --surface-color: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 0.5rem;
    flex: 1;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
}

.nav-btn:hover {
    background-color: var(--bg-color);
    color: var(--text-primary);
}

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

.nav-btn svg {
    width: 20px;
    height: 20px;
}

/* Header Actions */
.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.dataset-select-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 220px;
}

.dataset-picker-btn {
    width: 100%;
    justify-content: center;
}

.dataset-selector {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--surface-color);
    color: var(--text-primary);
    padding: 0.45rem 2rem 0.45rem 0.75rem;
    font-size: 0.875rem;
    appearance: none;
    background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="%23475569"%3E%3Cpath stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" /%3E%3C/svg%3E');
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
}

.dataset-selector:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-icon {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

/* Views */
.view {
    display: none;
}

.view.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.view-header h2 {
    font-size: 1.875rem;
    font-weight: 700;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stats-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-content h3 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Recent Logs Section */
.recent-logs-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Logs Grid */
.logs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.log-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.25rem;
    transition: var(--transition);
    cursor: pointer;
}

.log-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.log-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.log-card-header h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
}

.log-card-actions {
    display: flex;
    gap: 0.5rem;
}

.log-card-actions button {
    padding: 0.25rem 0.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: var(--transition);
}

.log-card-actions button:hover {
    background: var(--bg-color);
}

.log-card-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-card-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.log-card-row .label {
    color: var(--text-secondary);
}

.log-card-row .value {
    font-weight: 500;
}

/* Search and Filter */
.search-filter {
    display: flex;
    gap: 1rem;
}

.search-input {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    min-width: 300px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-select {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background: var(--surface-color);
    cursor: pointer;
}

/* Logs Table */
.logs-table-container {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
}

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

.logs-table thead {
    background: var(--bg-color);
    border-bottom: 2px solid var(--border-color);
}

.logs-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.logs-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logs-table tbody tr:hover {
    background: var(--bg-color);
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-danger {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.btn-secondary {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-color);
}

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

.btn-danger:hover {
    background: #b91c1c;
}

/* Cross Section View */
.cross-section-header {
    margin-bottom: 1.5rem;
}

.dataset-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.dataset-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.meta-separator {
    opacity: 0.5;
}

.cross-section-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.cross-section-sidebar {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.hole-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
    width: 100%;
    align-content: start;
}

.hole-card {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: var(--bg-color);
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    min-height: auto;
    width: 100%;
}

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

.hole-card.selected {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.08);
    box-shadow: var(--shadow-md);
}

.hole-card-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    width: 100%;
    gap: 0.5rem;
}

.hole-card-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hole-card-depth {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color);
    white-space: nowrap;
}

.hole-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.hole-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    font-size: 0.7rem;
    color: var(--text-secondary);
    background: var(--surface-color);
}

.hole-card-location {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.plane-section h3 {
    margin-bottom: 0.5rem;
}

.plane-container {
    background: var(--bg-color);
    border: 1px dashed var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cross-section-main {
    display: flex;
}

.cross-section-card {
    flex: 1;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cross-section-card-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.cross-section-viz {
    flex: 1;
    min-height: 420px;
    background: var(--bg-color);
    border-radius: 0.75rem;
    border: 1px dashed var(--border-color);
    padding: 1rem;
    position: relative;
}

.cross-section-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.highlight-card {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.primary-highlight-card {
    border-color: var(--primary-color);
}

.highlight-card-header h4 {
    margin: 0.1rem 0 0;
    font-size: 1rem;
}

.highlight-card-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.highlight-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.highlight-card-body.is-empty {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.highlight-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    font-size: 0.85rem;
}

.highlight-chip-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(15, 23, 42, 0.2);
}

.highlight-details {
    display: grid;
    gap: 0.35rem;
    font-size: 0.9rem;
}

.highlight-details span {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
}

.highlight-matches {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.88rem;
}

.highlight-matches .match-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.25rem;
    border-bottom: 1px solid var(--border-color);
}

.highlight-matches .match-item:last-child {
    border-bottom: none;
}

.match-item strong {
    color: var(--text-primary);
}

.match-item span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.cross-section-empty,
.plane-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-secondary);
    gap: 0.75rem;
}

.cross-section-empty svg,
.plane-empty svg {
    width: 56px;
    height: 56px;
    opacity: 0.4;
}

.plane-card {
    display: flex;
    gap: 1rem;
    width: 100%;
    align-items: center;
    justify-content: space-between;
}

.plane-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.plane-info h4 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
}

.plane-graphic {
    min-width: 160px;
    max-width: 200px;
}

.plane-graphic svg {
    width: 100%;
    height: auto;
}

@media (max-width: 1200px) {
    .cross-section-layout {
        grid-template-columns: 1fr;
    }

    .hole-selection-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 768px) {
    .plane-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .plane-graphic {
        width: 100%;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface-color);
    border-radius: 0.75rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.25rem;
}

.modal-close:hover {
    background: var(--bg-color);
}

.modal-body {
    padding: 1.5rem;
}

.dataset-modal-content {
    max-width: 720px;
}

.dataset-modal-hint {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.dataset-modal-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.dataset-card {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--surface-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dataset-card.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.dataset-card h4 {
    font-size: 1rem;
    font-weight: 600;
}

.dataset-card p {
    margin: 0;
    color: var(--text-secondary);
}

.dataset-file {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.dataset-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.dataset-card-footer-meta {
    min-height: 1.25rem;
}

.dataset-badge {
    background: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    padding: 0.15rem 0.75rem;
    border-radius: 999px;
}

.dataset-modal-empty {
    padding: 1.5rem;
    border: 1px dashed var(--border-color);
    border-radius: 0.75rem;
    text-align: center;
    color: var(--text-secondary);
    background: var(--bg-color);
}

.export-options {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.export-option {
    justify-content: center;
    padding: 1rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--text-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 1001;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

.toast.info {
    background: var(--primary-color);
}

/* Guided Tour */
.tour-overlay {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1100;
    pointer-events: none;
}

.tour-overlay.active {
    display: block;
    pointer-events: auto;
}

.tour-scrim {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(2px);
    z-index: 1101;
}

.tour-highlight {
    position: fixed;
    z-index: 1102;
    border: 2px solid var(--primary-color);
    border-radius: 0.75rem;
    box-shadow: 0 25px 45px rgba(15, 23, 42, 0.35);
    background: transparent;
    transition: var(--transition);
    pointer-events: none;
    opacity: 0;
}

.tour-overlay.active .tour-highlight {
    opacity: 1;
}

.tour-tooltip {
    position: fixed;
    max-width: 360px;
    z-index: 1103;
    background: var(--surface-color);
    border-radius: 0.75rem;
    padding: 1.25rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    pointer-events: auto;
}

.tour-step-count {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.tour-message {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tour-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tour-control-btn {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-color);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tour-control-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tour-control-btn.primary {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.tour-control-btn.primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.tour-control-btn:disabled,
.tour-control-btn.primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: var(--border-color);
    color: var(--text-secondary);
    background: var(--surface-color);
}

.tour-control-btn.primary:disabled {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.tour-control-skip {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    text-decoration: underline;
}

.tour-control-skip:hover {
    color: var(--primary-color);
}

/* Settings */
.settings-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.settings-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.settings-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.settings-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .tour-tooltip {
        max-width: calc(100% - 2rem);
        width: calc(100% - 2rem);
    }

    .tour-controls {
        flex-wrap: wrap;
    }

    .tour-control-skip {
        margin-left: 0;
        text-align: right;
        width: 100%;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        padding: 1rem;
    }

    .main-nav {
        width: 100%;
        overflow-x: auto;
    }

    .nav-btn {
        white-space: nowrap;
    }

    .main-content {
        padding: 1rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .search-filter {
        flex-direction: column;
    }

    .search-input {
        min-width: 100%;
    }

    .logs-grid {
        grid-template-columns: 1fr;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}