:root {
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-border: #d8dee6;
    --color-text: #1a2332;
    --color-muted: #5c6b7a;
    --color-primary: #0b5fff;
    --color-primary-hover: #094ecc;
    --color-danger: #c62828;
    --color-warning: #e65100;
    --color-success: #2e7d32;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --sidebar-width: 240px;
    --topbar-height: 56px;
}

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

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.design-pending {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

.app-shell__main {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.app-shell__content {
    padding: var(--space-lg);
    flex: 1;
}

.sidebar-nav {
    background: #0f1724;
    color: #e8eef5;
    padding: var(--space-md);
}

.sidebar-nav__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.sidebar-nav__logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    font-weight: 700;
}

.sidebar-nav__title { font-weight: 600; }

.sidebar-nav__links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-nav__links li { margin-bottom: var(--space-xs); }

.sidebar-nav__links a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    color: #c5d0dc;
}

.sidebar-nav__links a.active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.sidebar-nav__divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.15);
    margin: var(--space-md) 0;
}

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 var(--space-lg);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.page-header__title {
    margin: 0;
    font-size: var(--font-size-xl);
}

.page-header__subtitle {
    margin: var(--space-xs) 0 0;
    color: var(--color-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font: inherit;
    cursor: pointer;
}

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

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

.btn--secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
}

.btn--ghost {
    background: transparent;
    color: var(--color-muted);
}

.state, .map-state {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.state--error, .map-state--error { border-color: #f5c6cb; color: var(--color-danger); }

.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: var(--font-size-sm);
    background: #e8eef5;
}

.status-badge--success { background: #e8f5e9; color: var(--color-success); }
.status-badge--warning { background: #fff3e0; color: var(--color-warning); }
.status-badge--danger { background: #ffebee; color: var(--color-danger); }

.data-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}

.search-box__input,
.form-input {
    width: 100%;
    max-width: 360px;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.google-map {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: #e8eef5;
}

.live-truck-map {
    display: grid;
    gap: var(--space-md);
}

.live-truck-map__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.live-truck-map__list li.is-stale { opacity: 0.7; }

.login-page {
    max-width: 400px;
    margin: var(--space-xl) auto;
    padding: var(--space-lg);
}

.driver-location__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.detail-list {
    display: grid;
    gap: var(--space-sm);
}

.detail-list dt { font-weight: 600; color: var(--color-muted); }
.detail-list dd { margin: 0; }

.dispatch-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

#blazor-error-ui {
    background: #fff3cd;
    bottom: 0;
    display: none;
    position: fixed;
    width: 100%;
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
}

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem;
}

.loading-progress circle {
    fill: none;
    stroke: #e0e0e0;
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--color-primary);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    text-align: center;
    font-weight: 600;
}

.app-shell-loading {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

    .sidebar-nav {
        display: none;
    }
}