@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --color-bg: #EEF2F8;
    --color-sidebar: #0E101C;
    --color-heading: #0A1B2F;
    --color-teal: #15515F;
    --color-accent: #F58A07;
    --color-accent-light: #FFB347;
    --color-text: #0E101C;
    --color-muted: #6B7280;
    --color-card: #FFFFFF;
    --color-border: #E2E8F0;
}

* { font-family: 'Inter', sans-serif; }

body { background-color: var(--color-bg); color: var(--color-text); }

.sidebar {
    background: linear-gradient(180deg, #0E101C 0%, #0A1B2F 100%);
    min-height: 100vh;
    width: 240px;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 40;
}

.sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    margin: 2px 8px;
    transition: all 0.2s;
}

.sidebar a:hover, .sidebar a.active {
    background: rgba(255,255,255,0.1);
    color: #FFFFFF;
}

.sidebar a.active {
    background: linear-gradient(135deg, rgba(245,138,7,0.2), rgba(255,179,71,0.1));
    color: var(--color-accent-light);
    border-left: 3px solid var(--color-accent);
}

.main-content {
    margin-left: 240px;
    padding: 24px 32px;
    min-height: 100vh;
}

.kpi-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    transition: box-shadow 0.2s;
}

.kpi-card:hover {
    box-shadow: 0 4px 12px rgba(14,16,28,0.08);
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-heading);
    line-height: 1.2;
}

.kpi-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-green { background: #ECFDF5; color: #065F46; }
.badge-red { background: #FEF2F2; color: #991B1B; }
.badge-orange { background: #FFF7ED; color: #9A3412; }
.badge-blue { background: #EFF6FF; color: #1E40AF; }
.badge-gray { background: #F3F4F6; color: #374151; }

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
    background: var(--color-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.data-table thead th {
    background: #F8FAFC;
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-border);
}

.data-table tbody td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid #F1F5F9;
}

.data-table tbody tr:hover {
    background: #F8FAFC;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr.clickable { cursor: pointer; }

.section-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 16px;
}

.flash-error {
    background: #FEF2F2;
    border: 1px solid #FECACA;
    color: #991B1B;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.flash-success {
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
    color: #065F46;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.tutorial-hero {
    background:
        radial-gradient(circle at top right, rgba(245, 138, 7, 0.18), transparent 32%),
        linear-gradient(135deg, #0A1B2F 0%, #15515F 100%);
    border-radius: 20px;
    color: white;
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: 0 18px 40px rgba(10, 27, 47, 0.18);
}

.tutorial-hero h1 {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.1;
    margin: 0 0 10px;
}

.tutorial-hero p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
    max-width: 820px;
}

.tutorial-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.tutorial-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: 999px;
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.tutorial-step-list {
    display: grid;
    gap: 12px;
}

.tutorial-step {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 12px;
    align-items: start;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    background: #F8FAFC;
}

.tutorial-step-number {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
}

.tutorial-step h3,
.tutorial-mini-card h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-heading);
}

.tutorial-step p,
.tutorial-mini-card p,
.tutorial-list li {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
}

.tutorial-mini-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.tutorial-mini-card {
    background: #F8FAFC;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 16px;
}

.tutorial-list {
    margin: 0;
    padding-left: 18px;
}

.tutorial-note {
    background: #FFF7ED;
    border: 1px solid #FED7AA;
    color: #9A3412;
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 14px;
    margin-top: 16px;
}

.tutorial-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.tutorial-actions a {
    text-decoration: none;
}

@media (max-width: 1100px) {
    .tutorial-grid,
    .tutorial-mini-grid {
        grid-template-columns: 1fr;
    }
}