:root {
    --inkflow-primary: #1f6feb;
    --inkflow-primary-dark: #1554b9;
    --inkflow-secondary: #111827;
    --inkflow-muted: #6b7280;
    --inkflow-surface: #ffffff;
    --inkflow-alt-surface: #f5f7fb;
    --inkflow-border: #e2e8f0;
    --inkflow-success: #1f9d55;
    --inkflow-danger: #e11d48;
    --inkflow-radius: 14px;
    --inkflow-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
    --inkflow-font: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--inkflow-font);
    background-color: #eef2f8;
    color: var(--inkflow-secondary);
    line-height: 1.6;
}

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

a:hover {
    color: var(--inkflow-primary-dark);
}

.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    border: 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--inkflow-secondary);
}

.nav-link {
    color: var(--inkflow-muted);
    font-weight: 500;
    transition: color .2s ease;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--inkflow-secondary);
}

.btn-primary {
    background: var(--inkflow-primary);
    border: none;
    border-radius: 999px;
    padding: 0.65rem 1.6rem;
    font-weight: 600;
    transition: background .2s ease, transform .2s ease;
    box-shadow: 0 10px 20px rgba(31, 111, 235, 0.2);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--inkflow-primary-dark);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-radius: 999px;
    font-weight: 600;
    color: var(--inkflow-primary);
    border: 1px solid var(--inkflow-primary);
}

.hero {
    padding: 4rem 0 3rem;
}

.hero-card {
    background: var(--inkflow-surface);
    border-radius: 24px;
    padding: 3.5rem;
    box-shadow: var(--inkflow-shadow);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: .25rem;
    font-size: .9rem;
    color: var(--inkflow-muted);
}

.hero-stat strong {
    font-size: 1.25rem;
    color: var(--inkflow-secondary);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
}

.section-subtitle {
    color: var(--inkflow-muted);
    max-width: 640px;
}

.card-inkflow {
    border: 0;
    border-radius: var(--inkflow-radius);
    background: var(--inkflow-surface);
    box-shadow: 0 12px 25px rgba(15, 23, 42, 0.05);
}

.card-inkflow .card-body {
    padding: 2rem;
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--inkflow-alt-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--inkflow-primary);
}

.timeline {
    border-left: 2px solid var(--inkflow-border);
    padding-left: 1.5rem;
    margin-left: 1rem;
}

.timeline-step {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-step::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--inkflow-primary);
    position: absolute;
    left: -1.6rem;
    top: 0.25rem;
}

.cta-block {
    background: linear-gradient(120deg, var(--inkflow-primary), #4f46e5);
    border-radius: 24px;
    padding: 3rem;
    color: #fff;
    box-shadow: var(--inkflow-shadow);
}

.cta-block .btn {
    box-shadow: none;
}

.table-modern {
    border-radius: var(--inkflow-radius);
    overflow: hidden;
    background: var(--inkflow-surface);
    box-shadow: 0 12px 25px rgba(15, 23, 42, 0.05);
}

.table-modern thead {
    background: var(--inkflow-alt-surface);
    color: var(--inkflow-muted);
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.table-modern tbody tr {
    border-bottom: 1px solid var(--inkflow-border);
}

.badge {
    padding: .45rem .85rem;
    border-radius: 999px;
    font-weight: 600;
}

.badge.status-active {
    background: rgba(31, 111, 235, .1);
    color: var(--inkflow-primary);
}

.badge.status-neutral {
    background: rgba(107, 114, 128, .15);
    color: var(--inkflow-muted);
}

.badge.status-success {
    background: rgba(31, 157, 85, .15);
    color: var(--inkflow-success);
}

.badge.status-danger {
    background: rgba(225, 29, 72, .15);
    color: var(--inkflow-danger);
}

.form-control,
.form-select {
    border-radius: 12px;
    border: 1px solid var(--inkflow-border);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    background: var(--inkflow-surface);
    transition: border .2s ease, box-shadow .2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--inkflow-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.15);
}

.auth-card {
    max-width: 520px;
    margin: 3rem auto;
    padding: 3rem;
    border-radius: 24px;
    background: var(--inkflow-surface);
    box-shadow: var(--inkflow-shadow);
}

.dashboard-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.metric-card {
    padding: 1.5rem;
    border-radius: var(--inkflow-radius);
    background: var(--inkflow-surface);
    box-shadow: 0 15px 30px rgba(15, 23, 42, 0.05);
    position: relative;
}

.metric-card h3 {
    font-size: .9rem;
    text-transform: uppercase;
    color: var(--inkflow-muted);
    letter-spacing: .08em;
}

.metric-card strong {
    font-size: 2rem;
    display: block;
    margin-top: .4rem;
    color: var(--inkflow-secondary);
}

.list-card {
    border-radius: var(--inkflow-radius);
    background: var(--inkflow-surface);
    box-shadow: 0 15px 30px rgba(15, 23, 42, 0.05);
    padding: 1.5rem;
}

.list-card .list-group-item {
    border: 0;
    border-bottom: 1px solid var(--inkflow-border);
    padding: 1rem 0;
}

.list-card .list-group-item:last-child {
    border-bottom: 0;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--inkflow-muted);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: var(--inkflow-alt-surface);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--inkflow-primary);
    font-size: 1.5rem;
}

footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0;
    margin-top: 4rem;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

@media (max-width: 992px) {
    .hero-card {
        padding: 2rem;
    }
    .cta-block {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 3rem;
    }
    .hero-card {
        text-align: center;
    }
    .dashboard-metrics {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }
}