/**
 * Design Tokens & CSS Custom Properties
 * Professional design system for HVTRINDADE Consultoria
 */

:root {
    /* ========================================
       COLOR PALETTE
       ======================================== */

    /* Primary Colors - Blue Sky Palette */
    --color-primary-50: #E8F4FD;
    --color-primary-100: #D1E9FB;
    --color-primary-200: #A3D3F7;
    --color-primary-300: #75BDF3;
    --color-primary-400: #4A90E2;
    --color-primary-500: #2E7BC4;
    --color-primary-600: #1E88E5;
    --color-primary-700: #1565C0;
    --color-primary-800: #0D47A1;
    --color-primary-900: #063066;

    /* Neutral Colors */
    --color-neutral-0: #FFFFFF;
    --color-neutral-50: #F8F9FA;
    --color-neutral-100: #F1F3F5;
    --color-neutral-200: #E9ECEF;
    --color-neutral-300: #DEE2E6;
    --color-neutral-400: #CED4DA;
    --color-neutral-500: #ADB5BD;
    --color-neutral-600: #868E96;
    --color-neutral-700: #495057;
    --color-neutral-800: #343A40;
    --color-neutral-900: #212529;

    /* Semantic Colors */
    --color-success: #5CB85C;
    --color-success-light: #D4EDDA;
    --color-warning: #F0AD4E;
    --color-warning-light: #FFF3CD;
    --color-error: #D9534F;
    --color-error-light: #F8D7DA;
    --color-info: #5BC0DE;
    --color-info-light: #D1ECF1;

    /* Brand Colors - Shortcuts */
    --color-primary: var(--color-primary-400);
    --color-primary-dark: var(--color-primary-600);
    --color-primary-light: var(--color-primary-50);
    --color-cta: var(--color-primary-600);

    /* Background Colors */
    --color-bg-body: var(--color-neutral-0);
    --color-bg-section-light: var(--color-neutral-50);
    --color-bg-section-alt: var(--color-primary-50);
    --color-bg-dark: var(--color-neutral-800);

    /* Text Colors */
    --color-text-primary: var(--color-neutral-700);
    --color-text-secondary: var(--color-neutral-600);
    --color-text-heading: var(--color-neutral-900);
    --color-text-muted: var(--color-neutral-500);
    --color-text-inverse: var(--color-neutral-0);

    /* Border Colors */
    --color-border-light: var(--color-neutral-200);
    --color-border-medium: var(--color-neutral-300);
    --color-border-dark: var(--color-neutral-400);

    /* ========================================
       TYPOGRAPHY
       ======================================== */

    /* Font Families */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: var(--font-family-base);

    /* Font Sizes - Fluid Typography */
    --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
    --font-size-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.25rem);
    --font-size-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
    --font-size-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-snug: 1.3;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;
    --line-height-loose: 2;

    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    --letter-spacing-widest: 0.1em;

    /* ========================================
       SPACING SCALE
       ======================================== */

    --space-xs: 0.25rem;      /* 4px */
    --space-sm: 0.5rem;       /* 8px */
    --space-md: 0.75rem;      /* 12px */
    --space-lg: 1rem;         /* 16px */
    --space-xl: 1.25rem;      /* 20px */
    --space-2xl: 1.5rem;      /* 24px */
    --space-3xl: 2rem;        /* 32px */
    --space-4xl: 2.5rem;      /* 40px */
    --space-5xl: 3rem;        /* 48px */
    --space-6xl: 4rem;        /* 64px */
    --space-7xl: 5rem;        /* 80px */
    --space-8xl: 6rem;        /* 96px */
    --space-9xl: 8rem;        /* 128px */

    /* ========================================
       LAYOUT
       ======================================== */

    --container-width-sm: 640px;
    --container-width-md: 768px;
    --container-width-lg: 1024px;
    --container-width-xl: 1200px;
    --container-width-2xl: 1400px;
    --container-width: var(--container-width-xl);

    --content-width-prose: 65ch;
    --content-width-narrow: 50ch;
    --content-width-wide: 80ch;

    /* ========================================
       BORDERS
       ======================================== */

    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-3xl: 24px;
    --radius-full: 9999px;

    /* Border Widths */
    --border-width-thin: 1px;
    --border-width-medium: 2px;
    --border-width-thick: 4px;

    /* ========================================
       SHADOWS & ELEVATION
       ======================================== */

    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 24px 0 rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 20px 40px 0 rgba(0, 0, 0, 0.15);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Colored Shadows */
    --shadow-primary: 0 4px 12px 0 rgba(30, 136, 229, 0.25);
    --shadow-primary-lg: 0 8px 24px 0 rgba(30, 136, 229, 0.3);
    --shadow-success: 0 4px 12px 0 rgba(92, 184, 92, 0.25);

    /* ========================================
       TRANSITIONS & ANIMATIONS
       ======================================== */

    /* Durations */
    --duration-instant: 0ms;
    --duration-fast: 150ms;
    --duration-base: 250ms;
    --duration-slow: 350ms;
    --duration-slower: 500ms;
    --duration-slowest: 750ms;

    /* Easing Functions */
    --ease-linear: linear;
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

    /* Transition Presets */
    --transition-fast: var(--duration-fast) var(--ease-out);
    --transition-base: var(--duration-base) var(--ease-in-out);
    --transition-slow: var(--duration-slow) var(--ease-in-out);
    --transition-bounce: var(--duration-base) var(--ease-bounce);

    /* ========================================
       Z-INDEX SCALE
       ======================================== */

    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;

    /* ========================================
       COMPONENT-SPECIFIC VARIABLES
       ======================================== */

    /* Header */
    --header-height: 72px;
    --header-height-mobile: 64px;

    /* Hero */
    --hero-min-height: 90vh;
    --hero-min-height-mobile: auto;

    /* Cards */
    --card-padding: var(--space-5xl);
    --card-padding-mobile: var(--space-4xl);

    /* Buttons */
    --btn-padding-x: var(--space-4xl);
    --btn-padding-y: var(--space-2xl);
    --btn-padding-x-sm: var(--space-3xl);
    --btn-padding-y-sm: var(--space-lg);

    /* ========================================
       RESPONSIVE BREAKPOINTS
       ======================================== */

    --breakpoint-xs: 475px;
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* ========================================
   DARK MODE SUPPORT (Optional)
   ======================================== */

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark mode overrides can be added here if needed */
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
    :root {
        --shadow-sm: none;
        --shadow-md: none;
        --shadow-lg: none;
        --shadow-xl: none;
        --shadow-2xl: none;
    }
}