/**
 * Design Tokens - Maria Clara Portfolio
 * Sistema de design tokens para padronização visual
 */

:root {
  /* ===== CORES ===== */
  
  /* Cores Primárias */
  --color-primary: #435AFB;
  --color-primary-light: #6A7DFF;
  --color-primary-dark: #2A3FD9;
  
  /* Cores Secundárias */
  --color-secondary: #4BA3D3;
  --color-secondary-light: #6BB8E3;
  --color-secondary-dark: #2E8BC0;
  
  /* Cores Terciárias */
  --color-tertiary: #5219C0;
  --color-tertiary-light: #7A3DD9;
  --color-tertiary-dark: #3A0F8F;
  
  /* Cores Neutras */
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  
  /* Cores de Estado */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Cores de Background */
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-gray-50);
  --color-bg-accent: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  
  /* Cores de Texto */
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-muted: var(--color-gray-500);
  --color-text-inverted: var(--color-white);
  
  /* ===== TIPOGRAFIA ===== */
  
  /* Famílias de Fontes */
  --font-family-primary: "Roboto", system-ui, -apple-system, sans-serif;
  --font-family-heading: "Raleway", sans-serif;
  --font-family-mono: "Ubuntu Mono", monospace;
  
  /* Tamanhos de Fonte (Fluidos) */
  --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, 0.9rem + 0.5vw, 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, 2rem);
  --font-size-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.5rem);
  --font-size-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
  --font-size-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  
  /* Alturas de Linha */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Pesos de Fonte */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* ===== ESPAÇAMENTOS ===== */
  
  /* Sistema 8pt Grid */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  
  /* ===== BORDAS ===== */
  
  /* Raios de Borda */
  --radius-none: 0;
  --radius-sm: 0.125rem;  /* 2px */
  --radius-base: 0.25rem; /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-3xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;
  
  /* Espessuras de Borda */
  --border-width-0: 0;
  --border-width-1: 1px;
  --border-width-2: 2px;
  --border-width-4: 4px;
  
  /* ===== SOMBRAS ===== */
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* ===== ANIMAÇÕES ===== */
  
  /* Durações */
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;
  
  /* Curvas de Easing */
  --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);
  
  /* ===== Z-INDEX ===== */
  
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
  
  /* ===== LAYOUT ===== */
  
  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* Containers */
  --container-padding: var(--space-4);
  --container-max-width: 1200px;
  
  /* ===== COMPONENTES ===== */
  
  /* Botões */
  --btn-padding-x: var(--space-4);
  --btn-padding-y: var(--space-2);
  --btn-font-size: var(--font-size-sm);
  --btn-font-weight: var(--font-weight-medium);
  --btn-border-radius: var(--radius-md);
  --btn-transition: all var(--duration-200) var(--ease-in-out);
  
  /* Cards */
  --card-padding: var(--space-6);
  --card-border-radius: var(--radius-lg);
  --card-shadow: var(--shadow-md);
  --card-transition: transform var(--duration-200) var(--ease-in-out);
  
  /* Formulários */
  --input-padding-x: var(--space-3);
  --input-padding-y: var(--space-2);
  --input-border-radius: var(--radius-md);
  --input-border-color: var(--color-gray-300);
  --input-focus-border-color: var(--color-primary);
  --input-focus-ring-color: rgba(67, 90, 251, 0.25);
}

/* ===== MODO ESCURO ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: var(--color-gray-900);
    --color-bg-secondary: var(--color-gray-800);
    --color-text-primary: var(--color-gray-100);
    --color-text-secondary: var(--color-gray-300);
    --color-text-muted: var(--color-gray-400);
    --color-text-inverted: var(--color-gray-900);
  }
}

/* ===== UTILITÁRIOS DE ACESSIBILIDADE ===== */

/* Foco visível */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Redução de movimento */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Alto contraste */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0000FF;
    --color-secondary: #0066CC;
    --color-text-primary: #000000;
    --color-bg-primary: #FFFFFF;
  }
}