/* Paleta espelhada de ui/theme.py para manter a identidade visual do Protek-MT */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --page-bg-light: #f8fafc;
    --page-bg-dark: #0f172a;
    --card-bg-light: #e7edf6;
    --card-bg-dark: #1b263b;
    --card-border-light: #b9c7da;
    --card-border-dark: #2f3f5a;

    --surface-light: #ffffff;
    --surface-dark: #1b263b;
    --surface-border-light: #e2e8f0;
    --surface-border-dark: rgba(148, 163, 184, 0.16);

    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12), 0 2px 6px rgba(15, 23, 42, 0.06);
}

.dark {
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.32), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.36), 0 1px 3px rgba(0, 0, 0, 0.28);
    --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.44), 0 2px 8px rgba(0, 0, 0, 0.3);
}

html {
    scrollbar-gutter: stable;
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", ui-sans-serif, system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    letter-spacing: -0.006em;
}

/* Cabecalho fixo de cada pagina - leve realce ao rolar, sem pesar no layout. */
header.sticky {
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

.dark header.sticky {
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
}

main h1, main h2 {
    letter-spacing: -0.01em;
}

::selection {
    background-color: rgb(59 130 246 / 0.25);
}

/* Estado de foco consistente e visivel para navegacao por teclado,
   sem depender do outline padrao (inconsistente entre navegadores). */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

.scrollbar-thin::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.scrollbar-thin::-webkit-scrollbar-thumb {
    background-color: rgba(100, 116, 139, 0.4);
    border-radius: 999px;
}

.scrollbar-thin::-webkit-scrollbar-thumb:hover {
    background-color: rgba(100, 116, 139, 0.6);
}

.scrollbar-thin::-webkit-scrollbar-track {
    background: transparent;
}

/* ---------- Barra lateral ---------- */

#app-sidebar {
    background-image: linear-gradient(180deg, #eef3fa 0%, var(--page-bg-light) 100%);
}

.dark #app-sidebar {
    background-image: linear-gradient(180deg, #1b263b 0%, #141d30 100%);
}

.nav-link {
    position: relative;
}

.nav-link:hover .nav-icon {
    color: var(--primary);
}

.nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 0.5rem;
    color: #94a3b8;
    background-color: rgb(148 163 184 / 0.12);
    transition: background-color 0.15s ease, color 0.15s ease;
}

.dark .nav-icon {
    color: #64748b;
}

.nav-link.active {
    background-color: rgb(59 130 246 / 0.1);
    color: var(--primary-dark);
    border-color: rgb(59 130 246 / 0.18);
    font-weight: 600;
    box-shadow: var(--shadow-xs);
}

.nav-link.active .nav-icon {
    color: #fff;
    background-color: var(--primary);
    box-shadow: 0 2px 8px rgb(59 130 246 / 0.45);
}

.nav-link.active::before {
    content: "";
    position: absolute;
    left: -0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    border-radius: 999px;
    background-color: var(--primary);
}

.dark .nav-link.active {
    background-color: rgb(59 130 246 / 0.16);
    color: #93c5fd;
    border-color: rgb(59 130 246 / 0.28);
}

.dark .nav-link.active .nav-icon {
    color: #0b1220;
    background-color: #93c5fd;
    box-shadow: 0 2px 10px rgb(147 197 253 / 0.35);
}

.graph-tab-btn {
    color: #64748b;
    border-color: transparent;
}

.graph-tab-btn:hover {
    color: var(--primary-dark);
}

.graph-tab-btn.active {
    color: var(--primary-dark);
    border-color: var(--primary);
}

.dark .graph-tab-btn {
    color: #94a3b8;
}

.dark .graph-tab-btn:hover {
    color: #93c5fd;
}

.dark .graph-tab-btn.active {
    color: #93c5fd;
    border-color: #93c5fd;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fade-in-up 0.35s ease-out both;
}


/* ---------- Sistema de componentes ---------- */

/* Card padrao usado por secoes, paineis e listas em todo o app.
   Centralizar aqui permite elevar o visual do sistema inteiro num so lugar. */
.card {
    border-radius: 0.875rem;
    border: 1px solid var(--surface-border-light);
    background-color: var(--surface-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.dark .card {
    border-color: var(--surface-border-dark);
    background-color: var(--surface-dark);
}

.card-hover:hover {
    box-shadow: var(--shadow-md);
    border-color: rgb(59 130 246 / 0.35);
}

.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    box-shadow: var(--shadow-md);
    border-color: rgb(59 130 246 / 0.4);
    transform: translateY(-1px);
}

/* Botoes */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1.25rem;
    padding: 0.625rem 1.125rem;
    border-radius: 0.5rem;
    transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
    white-space: nowrap;
}

.btn:active {
    transform: translateY(0.5px);
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-primary {
    background-image: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--surface-border-light);
    color: #334155;
}

.dark .btn-secondary {
    border-color: var(--surface-border-dark);
    color: #cbd5e1;
}

.btn-secondary:hover {
    background-color: rgb(148 163 184 / 0.12);
    border-color: rgb(148 163 184 / 0.4);
}

.btn-ghost {
    background-color: transparent;
    color: #475569;
}

.dark .btn-ghost {
    color: #94a3b8;
}

.btn-ghost:hover {
    background-color: rgb(148 163 184 / 0.14);
}

.btn-danger {
    background-color: transparent;
    color: #e11d48;
}

.btn-danger:hover {
    background-color: rgb(225 29 72 / 0.1);
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
}

/* Badges de status */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border: 1px solid transparent;
}

.badge-success { color: #059669; background-color: rgba(16, 185, 129, 0.12); }
.dark .badge-success { color: #34d399; background-color: rgba(52, 211, 153, 0.14); }

.badge-info { color: #0369a1; background-color: rgba(56, 189, 248, 0.14); }
.dark .badge-info { color: #7dd3fc; background-color: rgba(56, 189, 248, 0.16); }

.badge-warning { color: #b45309; background-color: rgba(245, 158, 11, 0.14); }
.dark .badge-warning { color: #fbbf24; background-color: rgba(251, 191, 36, 0.16); }

.badge-danger { color: #be123c; background-color: rgba(244, 63, 94, 0.12); }
.dark .badge-danger { color: #fb7185; background-color: rgba(251, 113, 133, 0.16); }

.field-input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid #cbd5e1;
    background-color: #ffffff;
    font-size: 0.875rem;
    color: #0f172a;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.dark .field-input {
    border-color: #334155;
    background-color: rgba(30, 41, 59, 0.6);
    color: #e2e8f0;
}

.field-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgb(59 130 246 / 0.5);
}

/* Demanda de carga / geração: mesma cor dos rótulos, para reconhecer o
   campo de longe (alimentam a 67 e outras funções de proteção). */
.field-input-carga {
    border-color: #f59e0b;
    background-color: rgba(245, 158, 11, 0.06);
}

.dark .field-input-carga {
    border-color: #fbbf24;
    background-color: rgba(251, 191, 36, 0.08);
}

.field-input-geracao {
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.06);
}

.dark .field-input-geracao {
    border-color: #34d399;
    background-color: rgba(52, 211, 153, 0.08);
}

.field-input-diesel {
    border-color: #8b5cf6;
    background-color: rgba(139, 92, 246, 0.06);
}

.dark .field-input-diesel {
    border-color: #a78bfa;
    background-color: rgba(167, 139, 250, 0.08);
}