:root {
    --bg-main: #020617;
    --bg-card: #020617;
    --bg-card-soft: #0b1220;
    --border-soft: #1f2937;
    --accent: #2563eb;
    --accent-soft: #1d4ed8;
    --accent-text: #e5e7eb;
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --danger: #ef4444;
    --success: #22c55e;
    --radius-lg: 14px;
    --radius-md: 10px;
    --shadow-soft: 0 20px 50px rgba(15, 23, 42, 0.8);
    --shadow-card: 0 12px 30px rgba(15, 23, 42, 0.6);
}

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

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #000 100%);
    color: var(--text-main);
    min-height: 100vh;
}

/* NAVBAR */

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to right, #020617, #020617);
    color: var(--text-main);
    padding: 14px 32px;
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
    z-index: 50;
}

.navbar .brand {
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-size: .95rem;
    color: #a5b4fc;
}

.navbar nav a {
    color: var(--text-muted);
    margin-right: 18px;
    text-decoration: none;
    font-size: .92rem;
}

.navbar nav a:hover {
    color: var(--accent-text);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .85rem;
}

.navbar-right .username {
    color: var(--text-muted);
}

.navbar-right a {
    color: #f97316;
    text-decoration: none;
}

/* LAYOUT */

.page-wrapper {
    max-width: 1180px;
    margin: 32px auto 40px auto;
    padding: 0 16px;
}

.container {
    background: linear-gradient(145deg, rgba(15,23,42,0.96), rgba(15,23,42,0.96));
    border-radius: 24px;
    padding: 24px 24px 30px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30,64,175,0.65);
}

/* FOOTER */

.footer {
    text-align: center;
    padding: 12px;
    font-size: .8rem;
    color: var(--text-muted);
}

/* TITLES */

h1 {
    margin: 0 0 18px;
    font-size: 1.6rem;
    letter-spacing: .03em;
}

h2 {
    margin-top: 22px;
    margin-bottom: 12px;
    font-size: 1.2rem;
}

h3 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.05rem;
    color: var(--text-muted);
}

/* FORMS */

.form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px 20px;
    margin-bottom: 18px;
}

.form-inline {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    align-items: flex-end;
}

.form label {
    display: flex;
    flex-direction: column;
    font-size: .85rem;
    color: var(--text-muted);
}

.form input[type="text"],
.form input[type="password"],
.form input[type="number"],
.form input[type="date"],
.form input[type="datetime-local"],
.form select,
.form textarea {
    margin-top: 6px;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-soft);
    background: rgba(15,23,42,0.9);
    color: var(--text-main);
    font-size: .92rem;
    outline: none;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
    border-color: rgba(129,140,248,0.9);
    box-shadow: 0 0 0 1px rgba(129,140,248,0.5);
}

.form textarea {
    resize: vertical;
}

.form button,
.btn-secondary {
    margin-top: 22px;
    padding: 9px 16px;
    border-radius: 999px;
    border: none;
    background: var(--accent);
    color: #f9fafb;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    font-size: .9rem;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(37,99,235,.6);
    transition: transform .08s ease-out, box-shadow .08s ease-out, background .08s ease-out;
}

.form button:hover,
.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 30px rgba(37,99,235,.8);
    background: var(--accent-soft);
}

.btn-secondary {
    background: transparent;
    border: 1px solid rgba(148,163,184,0.8);
    box-shadow: none;
    color: var(--text-muted);
}

.btn-secondary:hover {
    background: rgba(30,64,175,0.4);
    color: var(--accent-text);
}

/* ALERTS */

.alert {
    padding: 10px 12px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: .85rem;
}

.alert-success {
    background: rgba(22,163,74,0.08);
    color: #bbf7d0;
    border: 1px solid rgba(22,163,74,0.8);
}

.alert-danger {
    background: rgba(248,113,113,0.08);
    color: #fecaca;
    border: 1px solid rgba(248,113,113,0.9);
}

/* TABLES */

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: .83rem;
    background: rgba(15,23,42,0.8);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table th,
.table td {
    padding: 8px 10px;
    border-bottom: 1px solid rgba(31,41,55,0.8);
}

.table th {
    background: rgba(15,23,42,0.95);
    text-align: left;
    color: var(--text-muted);
    font-weight: 500;
}

.table tr:nth-child(even) td {
    background: rgba(15,23,42,0.6);
}

/* DASHBOARD */

.summary {
    margin-top: 18px;
    margin-bottom: 24px;
}

.summary-value {
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: .03em;
}

.chart-section {
    margin-top: 14px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.chart-section.dual .chart-card {
    flex: 1 1 260px;
}

.chart-section.dual .chart-card.full {
    flex: 1 1 100%;
}

.chart-card {
    background: var(--bg-card-soft);
    border-radius: var(--radius-lg);
    padding: 14px 18px 18px;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(31,41,55,0.9);
}

.table-section {
    margin-top: 20px;
}

/* DASHBOARD ACTIONS (manager) */

.dashboard-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.dashboard-actions .actions {
    display: flex;
    gap: 10px;
}

/* RESPONSIVE */

@media (max-width: 768px) {
    .navbar {
        padding: 10px 16px;
        flex-wrap: wrap;
        row-gap: 6px;
    }

    .navbar nav {
        width: 100%;
        margin-top: 4px;
    }

    .navbar nav a {
        margin-right: 12px;
    }

    .page-wrapper {
        margin-top: 20px;
    }

    .container {
        padding: 18px 14px 22px;
        border-radius: 18px;
    }

    .chart-section {
        flex-direction: column;
    }

    .dashboard-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}