:root {
    --accent: #bd2b2d;
    --accent-hover: #a02426;
    --accent-light: rgba(189, 43, 45, 0.08);
    --bg: #f5f5f7;
    --card: #ffffff;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #aeaeb2;
    --border: #e5e5ea;
    --radius: 24px;
    --radius-sm: 16px;
    --radius-xs: 12px;
    --radius-full: 100px;
    --shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 4px 30px rgba(0, 0, 0, 0.08);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --sidebar-width: 240px;
    --header-height: 64px;
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--card);
    border-right: 1px solid var(--border);
    padding: 32px 20px;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 10;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--accent);
    margin-bottom: 40px;
    padding: 0 12px;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-xs);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
}

.sidebar-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 40px 48px;
    max-width: calc(100vw - var(--sidebar-width));
}

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 28px 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
}

.inline-form {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

input[type="text"],
input[type="password"],
input[type="date"],
select {
    padding: 12px 20px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-family: var(--font);
    background: var(--card);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease;
    min-width: 200px;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
    border-color: var(--accent);
}

select[multiple] {
    border-radius: var(--radius-sm);
    min-height: 100px;
    padding: 8px;
}

select[multiple] option {
    padding: 8px 12px;
    border-radius: 8px;
    margin: 2px 0;
}

select[multiple] option:checked {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
}

button, .btn-primary {
    padding: 12px 28px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.2s ease;
    white-space: nowrap;
}

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

button:active {
    transform: scale(0.98);
}

.copy-btn {
    padding: 8px 20px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 500;
}

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

.delete-btn {
    padding: 8px 20px;
    background: transparent;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    font-weight: 500;
}

.delete-btn:hover {
    background: rgba(189, 43, 45, 0.08);
    color: var(--accent);
}

.sites-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.site-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
}

.site-info {
    min-width: 180px;
}

.site-info strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
}

.site-domain {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.site-embed {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
}

.site-embed code {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.8rem;
    background: var(--card);
    padding: 10px 16px;
    border-radius: var(--radius-xs);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    flex: 1;
    overflow-x: auto;
    white-space: nowrap;
}

/* Login page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 24px;
}

.login-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 48px 40px;
    box-shadow: var(--shadow-hover);
    text-align: center;
}

.login-card h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.login-card form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-card input {
    width: 100%;
    text-align: center;
}

.login-card button {
    width: 100%;
    margin-top: 8px;
}

.login-error {
    color: var(--accent);
    font-size: 0.9rem;
    margin-top: 16px;
}

/* Analytics filters */
.filters-card {
    padding: 24px 28px;
}

.filters-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
}

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

.filter-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.filter-group select,
.filter-group input {
    min-width: 160px;
}

/* Stats row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Charts */
.chart-card {
    padding: 24px 28px;
}

.chart-card h2 {
    margin-bottom: 16px;
}

.chart-card canvas {
    max-height: 300px;
}

.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .charts-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 64px;
        padding: 24px 12px;
    }
    .sidebar .logo {
        font-size: 1rem;
        padding: 0;
        text-align: center;
    }
    .nav-item span:not(.nav-icon) {
        display: none;
    }
    .content {
        margin-left: 64px;
        padding: 24px;
    }
    .inline-form {
        flex-direction: column;
        align-items: stretch;
    }
    .site-embed {
        flex-direction: column;
        min-width: unset;
    }
}