/**
 * =========================================================
 * Cambiador Letras - Core Design Tokens
 * Version: 3.2.0
 * =========================================================
 * Main palette: Indigo, Periwinkle, White, Navy-Charcoal
 * Modern, clean and trustworthy for Brazilian and
 * Spanish audiences.
 * Preserves CDL token names and framework structure.
 * Supports light, dark, and system themes.
 * =========================================================
 */

:root {
    /* BRAND */

    --cdl-brand-name: "Cambiador Letras";

    --cdl-clr-white: #FFFFFF;
    --cdl-clr-black: #000000;
    --cdl-clr-transparent: transparent;

    /* PRIMARY BRAND PALETTE */

    --cdl-clr-primary: #4F46E5;
    --cdl-clr-primary-hover: #4338CA;
    --cdl-clr-primary-active: #3730A3;
    --cdl-clr-primary-soft: #EEF2FF;
    --cdl-clr-primary-subtle: #F8F9FF;
    --cdl-clr-primary-contrast: #FFFFFF;

    --cdl-clr-accent: #4F46E5;
    --cdl-clr-accent-soft: #EEF2FF;

    /* SECONDARY + GRADIENTS */

    --cdl-clr-secondary: #818CF8;
    --cdl-clr-secondary-soft: #E0E7FF;
    --cdl-clr-link: var(--cdl-clr-primary);
    --cdl-clr-selection: rgba(79, 70, 229, 0.18);

    --cdl-gradient-primary: linear-gradient(135deg, #4F46E5 0%, #818CF8 100%);
    --cdl-gradient-soft: linear-gradient(135deg, #EEF2FF 0%, #F8F9FF 100%);
    --cdl-gradient-text: linear-gradient(135deg, #4F46E5 0%, #818CF8 55%, #A5B4FC 100%);

    /* TEXT */

    --cdl-clr-text: #334155;
    --cdl-clr-text-strong: #0F172A;
    --cdl-clr-text-muted: #64748B;
    --cdl-clr-text-soft: #94A3B8;
    --cdl-clr-text-inverse: #FFFFFF;

    --cdl-clr-heading: #0F172A;

    /* SURFACE */

    --cdl-clr-background: #FFFFFF;
    --cdl-clr-surface: #FFFFFF;
    --cdl-clr-surface-soft: #F8F9FF;
    --cdl-clr-surface-muted: #EEF2FF;
    --cdl-clr-surface-elevated: #FFFFFF;

    /* BORDER */

    --cdl-clr-border: #E2E8F0;
    --cdl-clr-border-soft: #EEF2F7;
    --cdl-clr-border-strong: #CBD5E1;
    --cdl-clr-border-hover: #A5B4FC;

    /* STATUS COLORS
       Status colors are functional, not brand colors.
       Danger is a functional red, separate from the brand. */

    --cdl-clr-success: #16A34A;
    --cdl-clr-success-hover: #15803D;
    --cdl-clr-success-contrast: #FFFFFF;
    --cdl-clr-success-soft: #DCFCE7;

    --cdl-clr-warning: #A86408;
    --cdl-clr-warning-hover: #8B5005;
    --cdl-clr-warning-soft: #FFF6DF;

    --cdl-clr-danger: #DC2626;
    --cdl-clr-danger-hover: #B91C1C;
    --cdl-clr-danger-contrast: #FFFFFF;
    --cdl-clr-danger-soft: #FEF2F2;

    --cdl-clr-info: #0284C7;
    --cdl-clr-info-soft: #E0F2FE;

    /* FORM / INTERACTION */

    --cdl-clr-focus-ring: rgba(79, 70, 229, 0.30);
    --cdl-focus-ring: var(--cdl-clr-focus-ring);
    --cdl-focus-border: var(--cdl-clr-primary);

    /* TYPOGRAPHY */

    --cdl-font-family:
        "Plus Jakarta Sans",
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    --cdl-font-family-heading:
        "Sora",
        "Plus Jakarta Sans",
        ui-sans-serif,
        system-ui,
        sans-serif;

    --cdl-font-family-mono:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        "Liberation Mono",
        "Courier New",
        monospace;

    --cdl-font-size-xs: 12px;
    --cdl-font-size-sm: 14px;
    --cdl-font-size-md: 16px;
    --cdl-font-size-lg: 18px;
    --cdl-font-size-xl: 20px;
    --cdl-font-size-2xl: 24px;
    --cdl-font-size-3xl: 30px;
    --cdl-font-size-4xl: 36px;
    --cdl-font-size-5xl: 48px;
    --cdl-font-size-6xl: 60px;

    --cdl-font-weight-normal: 400;
    --cdl-font-weight-medium: 500;
    --cdl-font-weight-semibold: 600;
    --cdl-font-weight-bold: 700;
    --cdl-font-weight-extrabold: 800;

    --cdl-line-height-none: 1;
    --cdl-line-height-tight: 1.2;
    --cdl-line-height-snug: 1.35;
    --cdl-line-height-normal: 1.5;
    --cdl-line-height-relaxed: 1.7;
    --cdl-line-height-loose: 1.9;

    --cdl-heading-letter-spacing: -0.025em;

    --cdl-letter-spacing-tight: -0.04em;
    --cdl-letter-spacing-normal: 0;
    --cdl-letter-spacing-wide: 0.04em;
    --cdl-letter-spacing-wider: 0.08em;

    /* SPACING */

    --cdl-space-0: 0;
    --cdl-space-1: 4px;
    --cdl-space-2: 8px;
    --cdl-space-3: 12px;
    --cdl-space-4: 16px;
    --cdl-space-5: 20px;
    --cdl-space-6: 24px;
    --cdl-space-7: 28px;
    --cdl-space-8: 32px;
    --cdl-space-9: 36px;
    --cdl-space-10: 40px;
    --cdl-space-12: 48px;
    --cdl-space-14: 56px;
    --cdl-space-16: 64px;
    --cdl-space-20: 80px;
    --cdl-space-24: 96px;

    /* CONTAINERS */

    --cdl-container-xs: 480px;
    --cdl-container-sm: 640px;
    --cdl-container-md: 768px;
    --cdl-container-lg: 960px;
    --cdl-container-xl: 1200px;
    --cdl-container-2xl: 1400px;
    --cdl-container-page: 1200px;

    --cdl-container-max-width: var(--cdl-container-page);
    --cdl-container-padding: 16px;
    --cdl-content-width: 760px;

    /* RADIUS */

    --cdl-radius-none: 0;
    --cdl-radius-sm: 8px;
    --cdl-radius-md: 12px;
    --cdl-radius-lg: 16px;
    --cdl-radius-xl: 20px;
    --cdl-radius-2xl: 26px;
    --cdl-radius-3xl: 28px;
    --cdl-radius-full: 9999px;

    /* SHADOWS */

    --cdl-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
    --cdl-shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.07);
    --cdl-shadow-md: 0 10px 30px rgba(15, 23, 42, 0.09);
    --cdl-shadow-lg: 0 18px 50px rgba(15, 23, 42, 0.12);

    --cdl-shadow-primary: 0 14px 34px rgba(79, 70, 229, 0.20);

    /* TRANSITIONS */

    --cdl-transition-fast: 120ms ease;
    --cdl-transition-normal: 180ms ease;
    --cdl-transition-slow: 280ms ease;

    /* Z-INDEX */

    --cdl-z-base: 1;
    --cdl-z-dropdown: 100;
    --cdl-z-sticky: 500;
    --cdl-z-overlay: 900;
    --cdl-z-modal: 1000;
    --cdl-z-toast: 1100;

    /* LEGACY COMPATIBILITY */

    --border: var(--cdl-clr-border);
    --bg: var(--cdl-clr-background);
    --surface: var(--cdl-clr-surface);
    --text: var(--cdl-clr-text);
    --text-muted: var(--cdl-clr-text-muted);

    --cdl-primary-color: var(--cdl-clr-primary);
    --cdl-primary-hover: var(--cdl-clr-primary-hover);
    --cdl-button-primary-text: var(--cdl-clr-primary-contrast);

    --cdl-surface: var(--cdl-clr-surface);
    --cdl-surface-hover: var(--cdl-clr-surface-hover);

    --cdl-text-primary: var(--cdl-clr-text);
    --cdl-text-secondary: var(--cdl-clr-text-muted);
    --cdl-clr-text-secondary: var(--cdl-clr-text-muted);

    --cdl-border-color: var(--cdl-clr-border);
    --cdl-border-hover: var(--cdl-clr-border-strong);
    --cdl-border-width: 1px;
    --cdl-border-width-strong: 2px;

    --cdl-focus-color: var(--cdl-clr-primary);

    --cdl-danger-color: var(--cdl-clr-danger);
    --cdl-danger-hover: var(--cdl-clr-danger-hover);
    --cdl-danger-text: var(--cdl-clr-danger-contrast);

    --cdl-success-color: var(--cdl-clr-success);

    --cdl-clr-surface-hover: var(--cdl-clr-surface-soft);

    color-scheme: light;
}

/* =========================================================
   DARK THEME (deep navy-charcoal, indigo accents)
   ========================================================= */

[data-theme="dark"] {
    color-scheme: dark;

    /* BRAND */

    --cdl-clr-primary: #818CF8;
    --cdl-clr-primary-hover: #A5B4FC;
    --cdl-clr-primary-active: #6366F1;

    --cdl-clr-primary-soft: #1E2247;
    --cdl-clr-primary-subtle: #151934;
    --cdl-clr-primary-contrast: #0B0E1F;

    --cdl-clr-accent: #A5B4FC;
    --cdl-clr-accent-soft: #1E2247;

    --cdl-clr-secondary: #A5B4FC;
    --cdl-clr-secondary-soft: #262B55;
    --cdl-clr-selection: rgba(129, 140, 248, 0.30);
    --cdl-gradient-primary: linear-gradient(135deg, #6366F1 0%, #A5B4FC 100%);
    --cdl-gradient-soft: linear-gradient(135deg, #141830 0%, #0F1224 100%);
    --cdl-gradient-text: linear-gradient(135deg, #818CF8 0%, #A5B4FC 55%, #E0E7FF 100%);

    /* TEXT */

    --cdl-clr-text: #E5E7F0;
    --cdl-clr-text-strong: #FFFFFF;
    --cdl-clr-text-muted: #A3ABC2;
    --cdl-clr-text-soft: #7C849C;
    --cdl-clr-text-inverse: #0B0E1F;

    --cdl-clr-heading: #FFFFFF;

    /* SURFACE */

    --cdl-clr-background: #0C0F1A;
    --cdl-clr-surface: #141826;
    --cdl-clr-surface-soft: #1A1F31;
    --cdl-clr-surface-muted: #232A40;
    --cdl-clr-surface-elevated: #181D2E;

    /* BORDER */

    --cdl-clr-border: #272E45;
    --cdl-clr-border-soft: #1C2236;
    --cdl-clr-border-strong: #36405E;
    --cdl-clr-border-hover: #4F5A99;

    /* STATUS */

    --cdl-clr-success: #4ADE80;
    --cdl-clr-success-hover: #86EFAC;
    --cdl-clr-success-contrast: #052E16;
    --cdl-clr-success-soft: #0F2A1B;

    --cdl-clr-warning: #F2BD65;
    --cdl-clr-warning-hover: #FFD18A;
    --cdl-clr-warning-soft: #302817;

    --cdl-clr-danger: #F87171;
    --cdl-clr-danger-hover: #FCA5A5;
    --cdl-clr-danger-contrast: #FFFFFF;
    --cdl-clr-danger-soft: #3A1519;

    --cdl-clr-info: #38BDF8;
    --cdl-clr-info-soft: #0C2A3D;

    /* FORM / INTERACTION */

    --cdl-clr-focus-ring: rgba(129, 140, 248, 0.40);
    --cdl-focus-ring: var(--cdl-clr-focus-ring);
    --cdl-focus-border: var(--cdl-clr-primary);

    /* SHADOWS */

    --cdl-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
    --cdl-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.38);
    --cdl-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.42);
    --cdl-shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.48);

    --cdl-shadow-primary: 0 14px 34px rgba(129, 140, 248, 0.22);

    /* LEGACY */

    --border: var(--cdl-clr-border);
    --bg: var(--cdl-clr-background);
    --surface: var(--cdl-clr-surface);
    --text: var(--cdl-clr-text);
    --text-muted: var(--cdl-clr-text-muted);
}

/* =========================================================
   SYSTEM DARK MODE
   Used when the visitor prefers dark mode and has not
   explicitly selected the light theme.
   ========================================================= */

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;

        --cdl-clr-primary: #818CF8;
        --cdl-clr-primary-hover: #A5B4FC;
        --cdl-clr-primary-active: #6366F1;

        --cdl-clr-primary-soft: #1E2247;
        --cdl-clr-primary-subtle: #151934;
        --cdl-clr-primary-contrast: #0B0E1F;

        --cdl-clr-accent: #A5B4FC;
        --cdl-clr-accent-soft: #1E2247;

        --cdl-clr-secondary: #A5B4FC;
        --cdl-clr-secondary-soft: #262B55;
        --cdl-clr-selection: rgba(129, 140, 248, 0.30);
        --cdl-gradient-primary: linear-gradient(135deg, #6366F1 0%, #A5B4FC 100%);
        --cdl-gradient-soft: linear-gradient(135deg, #141830 0%, #0F1224 100%);
        --cdl-gradient-text: linear-gradient(135deg, #818CF8 0%, #A5B4FC 55%, #E0E7FF 100%);

        --cdl-clr-text: #E5E7F0;
        --cdl-clr-text-strong: #FFFFFF;
        --cdl-clr-text-muted: #A3ABC2;
        --cdl-clr-text-soft: #7C849C;
        --cdl-clr-text-inverse: #0B0E1F;

        --cdl-clr-heading: #FFFFFF;

        --cdl-clr-background: #0C0F1A;
        --cdl-clr-surface: #141826;
        --cdl-clr-surface-soft: #1A1F31;
        --cdl-clr-surface-muted: #232A40;
        --cdl-clr-surface-elevated: #181D2E;

        --cdl-clr-border: #272E45;
        --cdl-clr-border-soft: #1C2236;
        --cdl-clr-border-strong: #36405E;
        --cdl-clr-border-hover: #4F5A99;

        --cdl-clr-success: #4ADE80;
        --cdl-clr-success-hover: #86EFAC;
        --cdl-clr-success-contrast: #052E16;
        --cdl-clr-success-soft: #0F2A1B;

        --cdl-clr-warning: #F2BD65;
        --cdl-clr-warning-hover: #FFD18A;
        --cdl-clr-warning-soft: #302817;

        --cdl-clr-danger: #F87171;
        --cdl-clr-danger-hover: #FCA5A5;
        --cdl-clr-danger-contrast: #FFFFFF;
        --cdl-clr-danger-soft: #3A1519;

        --cdl-clr-info: #38BDF8;
        --cdl-clr-info-soft: #0C2A3D;

        --cdl-clr-focus-ring: rgba(129, 140, 248, 0.40);
        --cdl-focus-ring: var(--cdl-clr-focus-ring);
        --cdl-focus-border: var(--cdl-clr-primary);

        --cdl-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
        --cdl-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.38);
        --cdl-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.42);
        --cdl-shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.48);

        --cdl-shadow-primary: 0 14px 34px rgba(129, 140, 248, 0.22);

        --border: var(--cdl-clr-border);
        --bg: var(--cdl-clr-background);
        --surface: var(--cdl-clr-surface);
        --text: var(--cdl-clr-text);
        --text-muted: var(--cdl-clr-text-muted);
    }
}