:root {
    --brand-primary: #dc2626;
    --brand-primary-dark: #b91c1c;
    --brand-dark: #1a1a1a;
    --brand-slate: #4b5563;
    --brand-muted: #9ca3af;
    --brand-surface: #f8f9fb;
    --brand-border: #e5e7eb;
}

html { height: 100%; }

body {
    font-family: 'Montserrat', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--brand-surface);
    color: var(--brand-dark);
}

a {
    color: var(--brand-primary);
}

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

.btn-brand {
    background-color: var(--brand-primary);
    color: #fff;
}

.btn-brand:hover {
    background-color: var(--brand-primary-dark);
    color: #fff;
}

.badge-status-open {
    background-color: rgba(220, 38, 38, 0.12);
    color: var(--brand-primary-dark);
}

.badge-status-in-progress {
    background-color: rgba(250, 204, 21, 0.18);
    color: #b45309;
}

.badge-status-closed {
    background-color: rgba(16, 185, 129, 0.18);
    color: #047857;
}

.table thead th {
    color: var(--brand-slate);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.card-analytic {
    border-radius: 1rem;
    border: none;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 35px rgba(15, 23, 42, 0.12);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-analytic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background-image: linear-gradient(90deg, rgba(248, 113, 113, 0.95) 0%, var(--brand-primary) 100%);
}

.card-analytic:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 45px rgba(220, 38, 38, 0.18);
}

.card-analytic .analytic-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background-image: linear-gradient(135deg, #f87171 0%, var(--brand-primary) 100%);
    color: #fff;
}

.card-analytic .analytic-value {
    font-size: 3rem;
    font-weight: 800;
}

.sidebar-app {
    min-height: 100vh;
    background-color: #fff;
    border-right: 1px solid var(--brand-border);
}

.sidebar-app .nav-link {
    font-weight: 600;
    color: var(--brand-slate);
    border-radius: 0.75rem;
}

.sidebar-app .nav-link.active,
.sidebar-app .nav-link:hover {
    background-color: rgba(220, 38, 38, 0.12);
    color: var(--brand-primary);
}

.sidebar-app .nav-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
}

.header-app {
    background-color: #111827;
    background-image: linear-gradient(115deg, rgba(17,24,39,1) 0%, rgba(17,24,39,1) 65%, rgba(220,38,38,0.6) 100%);
    color: #fff;
}

.header-app .navbar-brand {
    font-weight: 800;
    letter-spacing: 0.02em;
}

.header-app .nav-user {
    color: #e5e7eb;
    font-weight: 500;
}

.header-app .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.35);
    color: #f8fafc;
}

.header-app .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, rgba(220, 38, 38, 0.18), transparent 55%), var(--brand-surface);
}

.auth-card {
    max-width: 420px;
    width: 100%;
    background: #fff;
    border-radius: 1.25rem;
    padding: 2.5rem 2.25rem;
    box-shadow: 0 25px 40px rgba(15, 23, 42, 0.12);
}

.auth-card h1 {
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--brand-slate);
}

.form-control,
.form-select {
    border-radius: 0.75rem;
}

.table-modern tbody tr:hover {
    background-color: rgba(220, 38, 38, 0.04);
}

.chat-bubble {
    border-radius: 1rem;
    padding: 1rem 1.25rem;
    background-color: #f8fafc;
}

.chat-bubble.admin {
    background-image: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
    color: #fff;
}

.chat-scroll {
    max-height: 520px;
    overflow-y: auto;
}

@media (max-width: 992px) {
    .sidebar-app {
        position: fixed;
        z-index: 1050;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .sidebar-app.show {
        transform: translateX(0);
    }

    .content-wrapper.has-sidebar {
        margin-left: 0 !important;
    }
}

@media (max-width: 576px) {
    .card-analytic {
        border-radius: 16px;
    }

    .card-analytic .analytic-value {
        font-size: 2.4rem;
    }
}
.card.card-stat {
    position: relative;
    border: none;
    border-radius: 16px;
    background: #fff;
    padding: 2rem 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card.card-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background-image: linear-gradient(90deg, rgba(248, 113, 113, 0.95) 0%, var(--brand-primary) 100%);
}

.card.card-stat:hover {
    transform: translateY(-4px);
    box-shadow: 0 26px 48px rgba(220, 38, 38, 0.18);
}

.card-stat__header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card-stat__icon {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(135deg, #f87171 0%, var(--brand-primary) 100%);
    color: #fff;
}

.card-stat__icon i,
.card-stat__icon svg {
    font-size: 1.1rem;
    width: 18px;
    height: 18px;
}

.card-stat__header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: var(--brand-dark);
}

.card-stat__value {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1;
    margin: 0;
}

.card-stat__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--brand-primary);
    font-weight: 600;
    text-decoration: none;
    margin-top: auto;
}

.card-stat__link:hover {
    color: var(--brand-primary-dark);
}

.card-stat__arrow {
    transition: transform 0.3s ease;
}

.card-stat__link:hover .card-stat__arrow {
    transform: translateX(6px);
}

.card-stat__indicator {
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(220, 38, 38, 0.06);
    right: -60px;
    bottom: -70px;
}
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    font-weight: 600;
    border-radius: 0.75rem;
    padding: 0.6rem 1.4rem;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.25s ease;
}

.button.button-primary,
.btn.button-primary {
    background-color: #1a1a1a;
    border-color: #1a1a1a;
    color: #fff;
}

.button.button-primary:hover,
.btn.button-primary:hover,
.button.button-primary:focus {
    background-color: #000;
    border-color: #000;
    color: #fff;
}

.button.button-secondary {
    background-color: transparent;
    border-color: #1a1a1a;
    color: #1a1a1a;
}

.button.button-secondary:hover {
    background-color: rgba(26, 26, 26, 0.08);
    color: #1a1a1a;
}

.button.button-link {
    background: none;
    color: var(--brand-primary);
    padding: 0;
}

.button.button-link:hover {
    color: var(--brand-primary-dark);
}