/* Banner Server - Grey Theme Stylesheet */

:root {
    --bg-primary: #f0f0f0;
    --bg-secondary: #ffffff;
    --border-color: #d0d0d0;
    --text-primary: #333333;
    --text-muted: #777777;
    --accent-primary: #4a90d9;
    --accent-dark: #2e5a9e;
    --success: #5cb85c;
    --warning: #f0ad4e;
    --error: #d9534f;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --border-radius: 6px;
    --transition: all 0.3s ease;
}

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

html, body {
    height: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
}

/* Header */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-logo h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-primary);
}

.header-nav {
    display: flex;
    gap: var(--spacing-lg);
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--bg-primary);
    color: var(--accent-primary);
}

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

.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    white-space: nowrap;
}

.user-info {
    font-size: 13px;
    color: var(--text-muted);
}

.logout-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--error);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 13px;
    transition: var(--transition);
}

.logout-btn:hover {
    background-color: #c9302c;
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-lg);
    min-height: calc(100vh - 200px);
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background-color: #f0f8f5;
    border-color: var(--success);
    color: #2d5a3d;
}

.alert-error {
    background-color: #fdf7f6;
    border-color: var(--error);
    color: #8b3a35;
}

.alert-warning {
    background-color: #fffbf0;
    border-color: var(--warning);
    color: #8a6d3b;
}

.alert-info {
    background-color: #f0f7ff;
    border-color: var(--accent-primary);
    color: #2e5a9e;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.required {
    color: var(--error);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="url"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* Buttons */
button,
.btn,
input[type="submit"],
input[type="button"] {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary,
button:not(.btn-secondary):not(.btn-danger):not(.btn-warning),
input[type="submit"] {
    background-color: var(--accent-primary);
    color: white;
}

.btn-primary:hover,
button:not(.btn-secondary):not(.btn-danger):not(.btn-warning):hover,
input[type="submit"]:hover {
    background-color: var(--accent-dark);
}

.btn-secondary {
    background-color: var(--text-muted);
    color: white;
}

.btn-secondary:hover {
    background-color: #5a5a5a;
}

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

.btn-danger:hover {
    background-color: #c9302c;
}

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

.btn-warning:hover {
    background-color: #ec971f;
}

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

.btn-success:hover {
    background-color: #4cae4c;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 12px;
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.card-header h2 {
    font-size: 18px;
    margin: 0;
}

.card-body {
    padding: 0;
}

.card-footer {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

table thead {
    background-color: var(--bg-primary);
}

table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

table tbody tr:hover {
    background-color: #fafafa;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-change {
    font-size: 12px;
    margin-top: var(--spacing-sm);
}

.stat-change.positive {
    color: var(--success);
}

.stat-change.negative {
    color: var(--error);
}

/* Pagination */
.pagination {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.pagination a,
.pagination span {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.pagination a:hover {
    background-color: var(--bg-primary);
    border-color: var(--accent-primary);
}

.pagination .active {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Landing Page */
.landing-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(74, 144, 217, 0.10), transparent 35%),
        linear-gradient(180deg, #f6f7f9 0%, #eceef2 100%);
}

.landing-header {
    padding: 2.5rem 0 1rem;
}

.landing-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
}

.landing-kicker {
    color: var(--accent-primary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.12em;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.landing-title {
    font-size: 42px;
    line-height: 1.05;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.landing-subtitle {
    max-width: 700px;
    font-size: 16px;
    color: #5f6b7a;
}

.landing-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.landing-btn {
    min-width: 180px;
}

.landing-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-xl);
}

.landing-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.9fr);
    gap: var(--spacing-xl);
    align-items: stretch;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 18px 45px rgba(31, 41, 55, 0.08);
}

.landing-hero-copy {
    padding: 2rem;
}

.landing-hero-copy h2 {
    font-size: 30px;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.landing-hero-copy p {
    color: #5f6b7a;
    font-size: 15px;
    max-width: 620px;
}

.landing-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background-color: rgba(74, 144, 217, 0.12);
    color: var(--accent-primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.landing-cta-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.landing-hero-panel {
    background: linear-gradient(160deg, #2f4f72 0%, #4a90d9 100%);
    color: white;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
}

.landing-mini-stat {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.landing-mini-label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.8;
    margin-bottom: 0.4rem;
}

.landing-mini-stat strong {
    font-size: 24px;
    line-height: 1;
}

.landing-stats-grid {
    margin-top: var(--spacing-xl);
}

.landing-stat-card {
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 10px 25px rgba(31, 41, 55, 0.05);
}

.landing-stat-note {
    margin-top: 0.75rem;
    color: var(--text-muted);
    font-size: 13px;
}

.landing-content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.landing-card {
    box-shadow: 0 10px 25px rgba(31, 41, 55, 0.05);
}

.landing-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.landing-list-item {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    align-items: center;
    padding: 0.95rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    background-color: #fafbfc;
}

.landing-list-meta,
.landing-list-date,
.landing-empty {
    color: var(--text-muted);
    font-size: 13px;
}

.landing-empty {
    padding: 2rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .header-nav {
        order: 3;
        width: 100%;
        flex-direction: column;
        justify-content: flex-start;
    }

    .nav-link {
        width: 100%;
    }

    .main-container {
        padding: 0 var(--spacing-md);
    }

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

    .landing-header-inner,
    .landing-hero,
    .landing-content-grid {
        grid-template-columns: 1fr;
        display: grid;
    }

    .landing-header-inner {
        gap: var(--spacing-lg);
    }

    .landing-actions {
        justify-content: flex-start;
    }

    .landing-title {
        font-size: 32px;
    }

    .landing-hero-panel {
        grid-template-columns: 1fr 1fr;
    }

    .landing-list-item {
        flex-direction: column;
        align-items: flex-start;
    }

    table {
        font-size: 12px;
    }

    table th,
    table td {
        padding: var(--spacing-sm);
    }

    .card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .header-logo h1 {
        font-size: 16px;
    }

    .landing-title {
        font-size: 28px;
    }

    .landing-hero-copy,
    .landing-hero-panel {
        padding: 1.25rem;
    }

    .landing-hero-panel {
        grid-template-columns: 1fr;
    }

    .landing-btn,
    .landing-cta-row .btn {
        width: 100%;
    }

    .stat-value {
        font-size: 20px;
    }

    button,
    .btn,
    input[type="submit"] {
        width: 100%;
    }

    .card-footer {
        flex-direction: column;
    }

    .card-footer button,
    .card-footer .btn {
        width: 100%;
    }
}