/* =============================================================
   BASE.CSS — Reset e estilos fundamentais
   ============================================================= */

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

:root {
    /* Paleta de cores principal */
    --color-primary:       #2563eb;
    --color-primary-dark:  #1d4ed8;
    --color-primary-light: #eff6ff;
    --color-accent:        #3b82f6;

    /* Neutros */
    --color-bg:            #f4f6f9;
    --color-surface:       #ffffff;
    --color-border:        #e2e8f0;
    --color-border-light:  #f1f5f9;

    /* Texto */
    --color-text:          #1e293b;
    --color-text-muted:    #64748b;
    --color-text-light:    #94a3b8;

    /* Status */
    --color-success:       #16a34a;
    --color-danger:        #dc2626;
    --color-warning:       #d97706;
    --color-info:          #0284c7;

    /* Sidebar */
    --sidebar-width:       260px;
    --topbar-height:       64px;

    /* Sombras */
    --shadow-sm:   0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md:   0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -1px rgba(0,0,0,.05);
    --shadow-lg:   0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.04);

    /* Tipografia */
    --font-sans:   'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono:   'Fira Code', 'Cascadia Code', 'Courier New', monospace;

    /* Bordas */
    --radius-sm:   4px;
    --radius-md:   8px;
    --radius-lg:   12px;
    --radius-xl:   16px;

    /* Transição padrão */
    --transition:  0.18s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.65;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Tipografia ── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: .5rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p {
    margin-bottom: 1rem;
    color: var(--color-text);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ── Scrollbar personalizada ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-border-light);
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ── Utilitários extras ── */
.text-muted-wikera {
    color: var(--color-text-muted) !important;
}
.text-primary-wikera {
    color: var(--color-primary) !important;
}
.bg-surface {
    background-color: var(--color-surface);
}