* {
    box-sizing: border-box;
}

:root {
    --mt-primary: #635bff;
    --mt-primary-hover: #4f46e5;
    --mt-primary-soft: #eef0ff;
    --mt-surface: #ffffff;
    --mt-surface-alt: #f1f4fa;
    --mt-muted: #475569;
    --mt-text: #0f172a;
    --mt-border: #dce3f1;
    --mt-success: #0f766e;
    --mt-warning: #b45309;
    --mt-error: #b42318;
    --mt-info: #1d4ed8;
    --mt-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    --mt-duration-fast: 140ms;
    --mt-duration-md: 220ms;
    --mt-ease: cubic-bezier(.2, .8, .2, 1);
}

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    color: var(--mt-text);
    background: #f6f8fc;
    line-height: 1.45;
}

.container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

.navbar {
    padding: 14px 0;
    background: #fff;
    border-bottom: 1px solid var(--mt-border);
    backdrop-filter: blur(8px);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.01em;
    text-decoration: none;
    color: var(--mt-text);
}

.d-flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--mt-duration-fast) var(--mt-ease), background var(--mt-duration-fast) var(--mt-ease), border-color var(--mt-duration-fast) var(--mt-ease), color var(--mt-duration-fast) var(--mt-ease), box-shadow var(--mt-duration-fast) var(--mt-ease);
    font-size: 14px;
    background: transparent;
}

.btn-sm {
    padding: 8px 12px;
    font-size: 13px;
}

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

.btn-primary:hover {
    background: var(--mt-primary-hover);
    border-color: var(--mt-primary-hover);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-outline-primary {
    border-color: var(--mt-primary);
    color: var(--mt-primary);
    background: #fff;
}

.btn-outline-primary:hover {
    background: var(--mt-primary-soft);
    color: var(--mt-primary-hover);
    border-color: var(--mt-primary-hover);
}

.btn-outline-secondary {
    border-color: #cbd5e1;
    color: #334155;
    background: #fff;
}

.btn-link {
    border: 0;
    background: transparent;
    color: var(--mt-primary);
    padding: 0;
    text-decoration: none;
}

.display-6 {
    font-size: clamp(2rem, 2.8vw, 2.9rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.fw-bold,
.fw-semibold {
    font-weight: 700;
}

.h4 {
    font-size: 1.6rem;
    font-weight: 700;
}

.h5 {
    font-size: 1.1rem;
}

.h6 {
    font-size: 0.95rem;
}

.small,
.text-secondary {
    color: var(--mt-muted);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-2 {
    margin-bottom: 8px;
}

.mb-3 {
    margin-bottom: 12px;
}

.mb-4 {
    margin-bottom: 16px;
}

.py-4 {
    padding: 24px 0;
}

.py-5 {
    padding: 40px 0;
}

.pb-5 {
    padding-bottom: 30px;
}

.row {
    /* Compatibilidad con Bootstrap: evita romper col-* en formularios */
    display: flex;
    flex-wrap: wrap;
}

.g-3,
.g-4 {
    gap: 0;
}

.col-6,
.col-12,
.col-lg-3,
.col-lg-4,
.col-md-3,
.col-md-4,
.col-md-6,
.col-md-12 {
    min-width: 0;
}

.card {
    background: #fff;
    border: 1px solid var(--mt-border);
    border-radius: 14px;
}

.card-body {
    padding: 14px;
}

.p-4 {
    padding: 18px;
}

.list-group {
    display: grid;
    gap: 8px;
}

.list-group-item {
    background: #fff;
    border: 1px solid var(--mt-border);
    border-radius: 12px;
    padding: 12px;
    text-decoration: none;
    color: inherit;
    display: block;
}

.form-label {
    display: inline-block;
    margin-bottom: 6px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    border: 1px solid var(--mt-border);
    border-radius: 10px;
    padding: 10px 12px;
    font: inherit;
    background: #fff;
}

.form-control:focus,
.form-select:focus,
.btn:focus-visible,
.btn-link:focus-visible,
a:focus-visible {
    outline: 2px solid var(--mt-primary);
    outline-offset: 2px;
}

textarea.form-control {
    resize: vertical;
}

.form-text {
    color: var(--mt-muted);
    font-size: 12px;
    margin-top: 4px;
}

.alert {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid transparent;
    margin-bottom: 12px;
}

.alert-success {
    background: #eafcf8;
    color: var(--mt-success);
    border-color: #bbf7d0;
}

.alert-danger {
    background: #fff1f2;
    color: var(--mt-error);
    border-color: #fecdd3;
}

.alert-warning {
    background: #fffbeb;
    color: var(--mt-warning);
    border-color: #fde68a;
}

.alert-info {
    background: #eff6ff;
    color: var(--mt-info);
    border-color: #bfdbfe;
}

.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.is-invalid {
    border-color: #dc2626 !important;
}

.invalid-feedback {
    color: #b91c1c;
    font-size: 12px;
    margin-top: 4px;
}

.mt-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .02em;
    border: 1px solid transparent;
}

.mt-badge-success {
    background: #ecfdf3;
    color: #166534;
    border-color: #bbf7d0;
}

.mt-badge-warning {
    background: #fffbeb;
    color: #92400e;
    border-color: #fde68a;
}

.mt-badge-danger {
    background: #fff1f2;
    color: #9f1239;
    border-color: #fecdd3;
}

.mt-badge-info {
    background: #eff6ff;
    color: #1d4ed8;
    border-color: #bfdbfe;
}

.mt-badge-secondary {
    background: #f1f5f9;
    color: #334155;
    border-color: #cbd5e1;
}

.mt-list-item-title {
    font-weight: 600;
}

.mt-list-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    font-size: 12px;
    color: var(--mt-muted);
}

.mt-hero {
    background: radial-gradient(1200px 420px at 5% -15%, rgba(99, 91, 255, .16), transparent 45%), radial-gradient(900px 360px at 100% -10%, rgba(13, 110, 253, .13), transparent 48%), #f6f8fc;
}

.mt-hero-grid {
    display: grid;
    grid-template-columns: 1.3fr .7fr;
    gap: 16px;
    align-items: center;
}

.mt-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--mt-primary);
    font-weight: 700;
}

.mt-hero-proof {
    border: 1px solid rgba(99, 91, 255, .22);
    box-shadow: var(--mt-shadow);
}

.mt-proof-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 8px;
    color: var(--mt-text);
}

.mt-value-card {
    border-color: rgba(99, 91, 255, .24);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 240, 255, 0.65));
}

.mt-admin-filter-card {
    border-color: rgba(99, 91, 255, .16);
}

.mt-kanban-column {
    border-color: rgba(99, 91, 255, .16);
    background: linear-gradient(180deg, #fff, #f8faff);
}

.mt-kanban-column-body {
    max-height: 78vh;
}

.mt-ticket-card {
    border-color: var(--mt-border);
    transition: transform var(--mt-duration-fast) var(--mt-ease), box-shadow var(--mt-duration-fast) var(--mt-ease);
}

.mt-ticket-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, .08);
}

.mt-ticket-title a {
    color: var(--mt-text) !important;
}

.mt-ticket-actions .form-select {
    min-width: 138px;
}

.mt-ticket-detail-card,
.mt-ticket-reply-card,
.mt-ticket-comment {
    border-color: var(--mt-border);
}

.mt-stat-card {
    border: 0;
    border-radius: 14px;
    box-shadow: var(--mt-shadow);
}

.mt-list-item {
    transition: transform var(--mt-duration-fast) var(--mt-ease), box-shadow var(--mt-duration-fast) var(--mt-ease);
    border-radius: 10px !important;
}

.mt-list-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
}

.mt-shell-card {
    border: 0;
    border-radius: 14px;
    box-shadow: var(--mt-shadow);
}

.mt-form-title {
    font-weight: 700;
    letter-spacing: .2px;
}

.mt-admin-nav {
    display: inline-flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mt-admin-nav .btn.is-active {
    background: var(--mt-primary);
    color: #fff;
    border-color: var(--mt-primary);
}

.btn.is-active {
    background: var(--mt-primary);
    color: #fff;
    border-color: var(--mt-primary);
}

.mt-toast-stack {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 1080;
    display: grid;
    gap: 8px;
    width: min(360px, calc(100vw - 32px));
}

.mt-toast {
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 10px 12px;
    background: #fff;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    font-size: 13px;
    animation: mt-toast-in .18s ease;
}

.mt-toast-success {
    background: #ecfdf3;
    color: #166534;
    border-color: #bbf7d0;
}

.mt-toast-danger {
    background: #fff1f2;
    color: #9f1239;
    border-color: #fecdd3;
}

.mt-toast-warning {
    background: #fffbeb;
    color: #92400e;
    border-color: #fde68a;
}

.mt-toast-info {
    background: #eff6ff;
    color: #1d4ed8;
    border-color: #bfdbfe;
}

@keyframes mt-toast-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mt-loading {
    opacity: .65;
    pointer-events: none;
}

.mt-skeleton {
    position: relative;
    overflow: hidden;
    background: #e5eaf3;
    border-radius: 6px;
}

.mt-skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: mt-skeleton 1.2s infinite;
}

.mt-skeleton-line {
    height: 12px;
    width: 70%;
}

.mt-skeleton-line-sm {
    height: 10px;
    width: 45%;
    margin-top: 8px;
}

@keyframes mt-skeleton {
    to {
        transform: translateX(100%);
    }
}

.pagination {
    gap: 6px;
}

.pagination .page-link {
    border-radius: 8px;
    border: 1px solid #dbe3ef;
    color: #334155;
}

.pagination .active .page-link {
    background: var(--mt-primary);
    border-color: var(--mt-primary);
    color: #fff;
}

@media (max-width: 900px) {
    .mt-hero-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --mt-surface: #111827;
        --mt-surface-alt: #0f172a;
        --mt-muted: #94a3b8;
        --mt-text: #e2e8f0;
        --mt-border: #243042;
        --mt-shadow: 0 18px 40px rgba(2, 6, 23, 0.45);
    }

    body {
        background: #0b1220;
        color: var(--mt-text);
    }

    .bg-light {
        background: #0b1220 !important;
    }

    .navbar,
    .card-header,
    .card-footer,
    .card,
    .list-group-item,
    .form-control,
    .form-select,
    .mt-toast {
        background: var(--mt-surface);
        color: var(--mt-text);
        border-color: var(--mt-border);
    }

    .navbar-brand,
    .mt-ticket-title a {
        color: var(--mt-text) !important;
    }

    .btn-outline-secondary,
    .btn-outline-primary {
        background: #0f172a;
    }

    .text-secondary,
    .small,
    .form-text {
        color: var(--mt-muted) !important;
    }

    .alert-success,
    .mt-badge-success {
        background: #0b2926;
        color: #7ae2d9;
        border-color: #1f5f59;
    }

    .alert-danger,
    .mt-badge-danger {
        background: #351621;
        color: #ffa8b2;
        border-color: #6b2339;
    }

    .alert-warning,
    .mt-badge-warning {
        background: #33240f;
        color: #f9c879;
        border-color: #6d4a17;
    }

    .alert-info,
    .mt-badge-info {
        background: #102640;
        color: #98c8ff;
        border-color: #2b5d94;
    }

    .mt-badge-secondary {
        background: #152033;
        color: #c8d5e7;
        border-color: #2a3a55;
    }

    .pagination .page-link {
        background: #111827;
        color: #cbd5e1;
        border-color: #314057;
    }

    .table,
    .table th,
    .table td {
        color: var(--mt-text);
        border-color: var(--mt-border);
    }

    .mt-hero {
        background: radial-gradient(1200px 420px at 5% -15%, rgba(99, 91, 255, .26), transparent 45%), radial-gradient(900px 360px at 100% -10%, rgba(13, 110, 253, .19), transparent 48%), #0b1220;
    }

    .mt-value-card,
    .mt-kanban-column {
        background: linear-gradient(180deg, #111827, #0f172a);
    }
}