/* ============================================================================
   NimFlow — Base Stylesheet
   Variáveis de tema e estilos compartilhados por todas as páginas.
   Cada página importa style_base.css e opcionalmente seu próprio CSS.
   ============================================================================ */

:root {
    /* ── Tokens canônicos NimFlow (Single Source of Truth) ──
       Destino declarado: dark #080C14. Fontes/cores alinhadas a style_index.css.
       Tokens primários usam os nomes curtos; aliases antigos (--bg-color, --card-bg,
       --primary, --text-main, --text-muted) preservados para retro-compat dos
       4 admin templates (admin_users/models/provider_keys/user_detail) que ainda
       os referenciam inline. NUNCA adicionar um novo :root em outro arquivo. */

    /* Primários */
    --bg: #080C14;
    --surface: #0D1420;
    --border: #1A2540;
    --blue: #3B82F6;
    --blue-dim: #1D4ED8;
    --blue-glow: rgba(59, 130, 246, 0.15);
    --cyan: #06B6D4;
    --text: #E2E8F0;
    --muted: #64748B;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --input-bg: #080C14;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;

    /* Aliases de retro-compatibilidade — mapeiam para os primários */
    --bg-color: var(--bg);
    --card-bg: var(--surface);
    --primary: var(--blue);
    --primary-hover: var(--blue-dim);
    --text-main: var(--text);
    --text-muted: var(--muted);

    /* Semantic borders (usado por harden P1: toggle-enable/disable) */
    --success-border: rgba(34, 197, 94, 0.4);
    --danger-border: rgba(239, 68, 68, 0.4);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--sans);
    background: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    line-height: 1.6;
}

/* ── Nav compartilhada ── */
.dashboard-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: rgba(8, 12, 20, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.dashboard-nav .nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-main);
}

.dashboard-nav .nav-logo-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary), #06b6d4);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.dashboard-nav .nav-logo-text {
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
    letter-spacing: 0.05em;
}

.dashboard-nav .nav-badge {
    font-family: var(--mono);
    font-size: 0.6rem;
    color: #06b6d4;
    border: 1px solid #06b6d4;
    border-radius: 4px;
    padding: 1px 6px;
    opacity: 0.7;
    margin-left: 4px;
}

.dashboard-nav .nav-links {
    display: flex;
    gap: 1rem;
}

.dashboard-nav .nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.dashboard-nav .nav-link:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.dashboard-nav .nav-link.active {
    color: var(--primary);
}

.dashboard-nav .nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dashboard-nav .user-email {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ── Botões base ── */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    font-family: var(--sans);
}
.btn-primary { background: var(--primary-hover); color: white; }
.btn-primary:hover { background: #1d4ed8; }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text-main); border-color: var(--text-muted); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-success { background: var(--success); color: #052e16; }
.btn-warning { background: var(--warning); color: #451a03; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn-secondary { background: var(--border); color: var(--text-main); }

/* ── Layout base de páginas ── */
.admin-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    padding-top: 5rem; /* compensa nav fixa */
}

.admin-header {
    margin-bottom: 2rem;
}
.admin-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}
.admin-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ── Spinner ── */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ── */
.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s;
    max-width: 400px;
}
.toast.show { opacity: 1; }
.toast-success { background: var(--success); color: #052e16; }
.toast-error { background: var(--danger); color: white; }
.toast-info { background: var(--primary); color: white; }

.hidden { display: none !important; }