:root {
    --cor-azul: #1a5f8a;
    --cor-azul-escuro: #0f3d5c;
    --cor-azul-claro: #e8f2f8;
    --cor-verde: #2d8a5e;
    --cor-verde-claro: #e6f5ee;
    --cor-laranja: #d97706;
    --cor-laranja-claro: #fef3e2;
    --cor-vinho: #8b2942;
    --cor-vinho-claro: #f8e8ec;
    --cor-fundo: #f0f4f8;
    --cor-texto: #1e293b;
    --cor-texto-suave: #64748b;
    --cor-borda: #d8e0e8;
    --cor-branco: #ffffff;
    --cor-sombra: rgba(15, 61, 92, 0.08);
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius: 10px;
    --font-base: "Segoe UI", "Nunito Sans", system-ui, sans-serif;
}

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

body {
    margin: 0;
    font-family: var(--font-base);
    background: var(--cor-fundo);
    color: var(--cor-texto);
    min-height: 100vh;
}

a {
    color: var(--cor-azul);
    text-decoration: none;
}

a:hover {
    color: var(--cor-azul-escuro);
}

/* Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(145deg, rgba(26, 95, 138, 0.92) 0%, rgba(45, 138, 94, 0.85) 55%, rgba(139, 41, 66, 0.8) 100%),
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12), transparent 40%);
    padding: 1.5rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--cor-branco);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(15, 61, 92, 0.25);
    padding: 2rem 2rem 1.5rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 1.25rem;
}

.login-logo-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: var(--cor-azul-claro);
    color: var(--cor-azul);
    font-weight: 700;
    font-size: 0.7rem;
    text-align: center;
    line-height: 1.2;
    border: 2px solid var(--cor-azul);
    padding: 0.5rem;
}

.login-title {
    text-align: center;
    margin: 0 0 0.25rem;
    color: var(--cor-azul-escuro);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.login-subtitle {
    text-align: center;
    margin: 0 0 1.5rem;
    color: var(--cor-texto-suave);
    font-size: 0.95rem;
}

.login-frase {
    margin-top: 1.25rem;
    text-align: center;
    font-style: italic;
    color: var(--cor-texto-suave);
    font-size: 0.9rem;
    border-top: 1px solid var(--cor-borda);
    padding-top: 1rem;
}

.btn-primary-sistema {
    background: var(--cor-azul);
    border-color: var(--cor-azul);
}

.btn-primary-sistema:hover,
.btn-primary-sistema:focus {
    background: var(--cor-azul-escuro);
    border-color: var(--cor-azul-escuro);
}

/* Layout autenticado */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--cor-azul-escuro) 0%, #0a2a40 100%);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1040;
    overflow-y: auto;
    transition: transform 0.25s ease;
}

.sidebar-brand {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-brand .brand-name {
    font-size: 0.75rem;
    opacity: 0.85;
    margin-top: 0.5rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: rgba(255, 255, 255, 0.85);
    padding: 0.65rem 1.1rem;
    font-size: 0.92rem;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-left-color: var(--cor-laranja);
}

.sidebar-section {
    padding: 0.85rem 1.1rem 0.35rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.55;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-width: 0;
}

.topbar {
    height: var(--header-height);
    background: var(--cor-branco);
    border-bottom: 1px solid var(--cor-borda);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    position: sticky;
    top: 0;
    z-index: 1030;
    box-shadow: 0 1px 4px var(--cor-sombra);
}

.page-body {
    padding: 1.25rem;
}

.card-sistema {
    background: var(--cor-branco);
    border: 1px solid var(--cor-borda);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px var(--cor-sombra);
}

.stat-card {
    border: none;
    border-radius: var(--radius);
    color: #fff;
    padding: 1.25rem;
    box-shadow: 0 4px 14px var(--cor-sombra);
}

.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
}

.stat-card .stat-label {
    opacity: 0.9;
    font-size: 0.9rem;
}

.stat-azul { background: linear-gradient(135deg, var(--cor-azul), #2474a8); }
.stat-verde { background: linear-gradient(135deg, var(--cor-verde), #3aa572); }
.stat-laranja { background: linear-gradient(135deg, var(--cor-laranja), #f59e0b); }
.stat-vinho { background: linear-gradient(135deg, var(--cor-vinho), #a33a55); }

.indicator-card {
    background: var(--cor-branco);
    border-radius: var(--radius);
    border: 1px solid var(--cor-borda);
    padding: 0.9rem 1rem;
    height: 100%;
}

.indicator-card .value {
    font-size: 1.35rem;
    font-weight: 700;
}

.badge-disponivel { background: var(--cor-verde); }
.badge-em-uso { background: var(--cor-azul); }
.badge-manutencao { background: var(--cor-laranja); }
.badge-inativo { background: var(--cor-texto-suave); }
.badge-baixado { background: var(--cor-vinho); }

#map-veiculos {
    height: 480px;
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--cor-borda);
    z-index: 1;
}

.sidebar-logo {
    max-height: 56px;
    max-width: 140px;
}

.sidebar-logo-ph {
    width: 64px;
    height: 64px;
    font-size: 0.6rem;
}

.avatar-circle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--cor-azul-claro);
    color: var(--cor-azul);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.topbar-alerts {
    position: relative;
    color: var(--cor-texto-suave);
    font-size: 1.1rem;
}

.topbar-alerts .badge {
    position: absolute;
    top: -6px;
    right: -10px;
    font-size: 0.65rem;
}

.bg-vinho {
    background: var(--cor-vinho) !important;
}

.sidebar-backdrop {
    display: none;
}

.page-placeholder {
    background: var(--cor-branco);
    border: 1px dashed var(--cor-borda);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    color: var(--cor-texto-suave);
}

.table thead th {
    background: var(--cor-azul-claro);
    color: var(--cor-azul-escuro);
    font-size: 0.85rem;
    white-space: nowrap;
    border-bottom-color: var(--cor-borda);
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--cor-texto);
}

.card-sistema .h6 {
    color: var(--cor-azul-escuro);
    font-weight: 700;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-backdrop.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 61, 92, 0.45);
        z-index: 1035;
    }

    .main-content {
        margin-left: 0;
    }

    #map-veiculos {
        height: 320px;
    }
}