/* Tokens de identidade visual própria: cores, tipografia, espaçamento, raio, sombra. */

:root {
    --color-bg: #f6f7f9;
    --color-surface: #ffffff;
    --color-surface-alt: #eef0f4;
    --color-border: #e2e5eb;
    --color-text: #12151b;
    --color-text-muted: #5b6472;
    --color-primary: #4338ca;
    --color-primary-hover: #3730a3;
    --color-primary-contrast: #ffffff;
    --color-positive: #0f8f6f;
    --color-negative: #d6455a;
    --color-warning: #b7791f;
    --color-focus-ring: rgba(67, 56, 202, 0.35);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 999px;

    --shadow-sm: 0 1px 2px rgba(16, 20, 30, 0.06), 0 1px 1px rgba(16, 20, 30, 0.04);
    --shadow-md: 0 8px 24px rgba(16, 20, 30, 0.10);

    --header-height: 60px;
    --bottom-nav-height: 64px;
    --sidebar-width: 248px;

    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #0b0e14;
        --color-surface: #131722;
        --color-surface-alt: #1a1f2c;
        --color-border: #262c3b;
        --color-text: #e8eaed;
        --color-text-muted: #9aa3b2;
        --color-primary: #8b87f5;
        --color-primary-hover: #a29dff;
        --color-primary-contrast: #12151b;
        --color-positive: #35c89a;
        --color-negative: #ef6b7d;
        --color-warning: #e0ac4a;
        --color-focus-ring: rgba(139, 135, 245, 0.35);
        color-scheme: dark;
    }
}

:root[data-theme="dark"] {
    --color-bg: #0b0e14;
    --color-surface: #131722;
    --color-surface-alt: #1a1f2c;
    --color-border: #262c3b;
    --color-text: #e8eaed;
    --color-text-muted: #9aa3b2;
    --color-primary: #8b87f5;
    --color-primary-hover: #a29dff;
    --color-primary-contrast: #12151b;
    --color-positive: #35c89a;
    --color-negative: #ef6b7d;
    --color-warning: #e0ac4a;
    --color-focus-ring: rgba(139, 135, 245, 0.35);
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, p {
    margin: 0 0 var(--space-3);
}

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

a:hover {
    text-decoration: underline;
}

img, svg {
    max-width: 100%;
    display: block;
}

button {
    font-family: inherit;
}

:focus-visible {
    outline: 3px solid var(--color-focus-ring);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-positive {
    color: var(--color-positive);
}

.text-negative {
    color: var(--color-negative);
}