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

/* ==========================================================================
   Painel Administrativo — Masterwork Design System (Modern SaaS & High-End UI)
   ========================================================================== */

:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --text: #0f172a;
    --muted: #64748b;
    --brand: #16a6a3;
    --brand-hover: #0d8583;
    --brand-light: rgba(22, 166, 163, 0.10);
    --dark-side: #0f172a;
    --dark-side-card: #1e293b;
    --ok: #10b981;
    --ok-light: rgba(16, 185, 129, 0.1);
    --warn: #f59e0b;
    --warn-light: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --dur: .25s;
    --ease: cubic-bezier(.4, 0, .2, 1);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
    --shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.08), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
}

* {
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.85; transform: scale(1.05); }
}

/* ---- Layout Grid ---- */
.adm {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

/* ---- Sidebar (Dark Modern SaaS) ---- */
.adm__side {
    background: var(--dark-side);
    color: #ffffff;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 50;
}

.adm__brand {
    font-weight: 800;
    font-size: 1.35rem;
    margin-bottom: 2rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-left: 0.5rem;
    letter-spacing: -0.02em;
}

.adm__brand i {
    color: var(--brand);
}

.adm__nav {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    overflow-y: auto;
    flex: 1;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.adm__nav::-webkit-scrollbar {
    display: none;
}

.adm__link {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .65rem .85rem;
    border-radius: var(--radius-sm);
    color: #94a3b8;
    font-size: .9rem;
    font-weight: 500;
    transition: all var(--dur) var(--ease);
    position: relative;
}

.adm__link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
}

.adm__link.is-active {
    background: rgba(22, 166, 163, 0.12);
    color: var(--brand);
    font-weight: 700;
}

.adm__link.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 3px;
    background: var(--brand);
    border-radius: 0 4px 4px 0;
    box-shadow: 0 0 10px var(--brand);
}

.adm__link i {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform var(--dur) var(--ease);
}

.adm__link:hover i {
    transform: translateX(2px);
}

.adm__badge {
    margin-left: auto;
    background: var(--brand);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 0.15rem 0.5rem;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(22, 166, 163, 0.4);
    animation: pulseGlow 2s infinite ease-in-out;
}

/* User Bottom Area in Sidebar */
.adm__user-bottom {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.adm__user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.adm__user-avatar {
    width: 36px;
    height: 36px;
    background: rgba(22, 166, 163, 0.2);
    color: var(--brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.adm__user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.adm__user-role {
    font-size: 0.75rem;
    color: #94a3b8;
    margin: 0;
}

.adm__logout-btn {
    background: transparent;
    border: 0;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.adm__logout-btn:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

/* ---- Main Content Area ---- */
.adm__main {
    padding: 2.25rem 2.5rem;
    max-width: 1350px;
    width: 100%;
    margin: 0 auto;
    animation: fadeInUp 0.35s var(--ease);
}

/* Header Section inside Main */
.adm__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.adm__title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 0.25rem;
    letter-spacing: -0.03em;
}

.adm__subtitle {
    font-size: 0.9rem;
    color: var(--muted);
    margin: 0;
}

/* ---- Flash Messages / Alerts ---- */
.flash {
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    animation: fadeInUp 0.3s ease;
}

.flash--ok {
    background: var(--ok-light);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #065f46;
}

.flash--err {
    background: var(--danger-light);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #991b1b;
}

/* ---- Cards System ---- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all var(--dur) var(--ease);
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: var(--text);
}

/* Metric KPI Cards ---- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.35rem 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    transition: all var(--dur) var(--ease);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: #cbd5e1;
}

.kpi-title {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 0.5rem;
}

.kpi-val {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 0.35rem;
    letter-spacing: -0.03em;
}

.kpi-sub {
    font-size: 0.8rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.kpi-sub.up { color: var(--ok); font-weight: 600; }

.kpi-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-sm);
    background: var(--brand-light);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ---- Tables ---- */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.table th {
    background: #f8fafc;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.775rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text);
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: 0;
}

.table tr:hover td {
    background: rgba(248, 250, 252, 0.8);
}

/* ---- Badges & Pills ---- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: 50px;
    font-size: 0.775rem;
    font-weight: 700;
    line-height: 1;
}

.badge--ok { background: var(--ok-light); color: var(--ok); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge--warn { background: var(--warn-light); color: var(--warn); border: 1px solid rgba(245, 158, 11, 0.2); }
.badge--danger { background: var(--danger-light); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.badge--neutral { background: #f1f5f9; color: var(--muted); border: 1px solid var(--border); }

/* ---- Form Controls & Inputs ---- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.field {
    margin-bottom: 1.25rem;
}

.field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 0.4rem;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="number"],
.field input[type="password"],
.field select,
.field textarea {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: #ffffff;
    color: var(--text);
    font-size: 0.925rem;
    transition: all var(--dur) var(--ease);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(22, 166, 163, 0.15);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    border: 0;
    transition: all var(--dur) var(--ease);
}

.btn--brand {
    background: var(--brand);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(22, 166, 163, 0.2);
}

.btn--brand:hover {
    background: var(--brand-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(22, 166, 163, 0.3);
}

.btn--secondary {
    background: #ffffff;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn--secondary:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.btn--danger {
    background: var(--danger);
    color: #ffffff;
}

.btn--danger:hover {
    background: #dc2626;
}

.btn--sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.825rem;
}

/* Burger Mobile Toggle */
.adm__burger {
    display: none;
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 100;
    background: var(--dark-side);
    color: #ffffff;
    border: 0;
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Responsive Rules */
@media (max-width: 900px) {
    .adm {
        grid-template-columns: 1fr;
    }
    .adm__side {
        position: fixed;
        left: -280px;
        width: 260px;
        transition: left 0.3s ease;
        box-shadow: 0 0 20px rgba(0,0,0,0.3);
    }
    .adm__side.is-open {
        left: 0;
    }
    .adm__burger {
        display: block;
    }
    .adm__main {
        padding: 1.5rem 1rem;
    }
}