/**
 * Design Tokens - Parque Tecnológico UFRGS
 * Sistema de design baseado em Tactile Realism / Claymorphism
 * Referência: Meritum Core Design System
 */

/* ========================================
   CORES PRIMÁRIAS
   ======================================== */

:root {
  /* UFRGS Institucional */
  --color-ufrgs-blue: #004587;
  --color-ufrgs-blue-dark: #003366;
  --color-ufrgs-gold: #FFCC00;
  --color-ufrgs-gold-dark: #E6B800;
  
  /* Design System Principal */
  --color-trust-teal: #2A9D8F;
  --color-trust-teal-light: rgba(42, 157, 143, 0.1);
  --color-trust-teal-hover: #238377;
  --color-trust-teal-active: #1d6d63;
  
  --color-deep-indigo: #264653;
  --color-deep-slate: #1E293B;
  
  --color-amber-glow: #E9C46A;
  --color-amber-glow-light: rgba(233, 196, 106, 0.2);
  
  --color-risk-coral: #E76F51;
  --color-risk-coral-light: rgba(231, 111, 81, 0.1);
  --color-risk-coral-hover: #d95b3e;
  
  --color-canvas-white: #F8F9FA;
  --color-neutral-gray: #F1F5F9;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, var(--color-trust-teal) 0%, var(--color-deep-indigo) 100%);
  --gradient-ufrgs: linear-gradient(135deg, var(--color-ufrgs-blue) 0%, var(--color-ufrgs-blue-dark) 100%);
  --gradient-gold: linear-gradient(135deg, var(--color-ufrgs-gold) 0%, var(--color-amber-glow) 100%);
}

/* ========================================
   HIERARQUIA TIPOGRÁFICA
   ======================================== */

:root {
  /* Família */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  --font-family-heading: 'Inter', sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  
  /* Tamanhos */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  
  /* Pesos */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Altura de linha */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
}

/* ========================================
   ESPAÇAMENTO (Sistema 8px)
   ======================================== */

:root {
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 0.75rem;   /* 12px */
  --spacing-lg: 1rem;      /* 16px */
  --spacing-xl: 1.5rem;    /* 24px */
  --spacing-2xl: 2rem;     /* 32px */
  --spacing-3xl: 3rem;     /* 48px */
  --spacing-4xl: 4rem;     /* 64px */
}

/* ========================================
   BORDER RADIUS
   ======================================== */

:root {
  --border-radius-sm: 0.375rem;    /* 6px */
  --border-radius-md: 0.5rem;      /* 8px */
  --border-radius-lg: 0.75rem;     /* 12px */
  --border-radius-xl: 1rem;        /* 16px */
  --border-radius-2xl: 1.5rem;     /* 24px */
  --border-radius-full: 9999px;
}

/* ========================================
   SOMBRAS (Tactile Realism)
   ======================================== */

:root {
  /* Clay Shadows */
  --shadow-clay: 
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.04),
    0 4px 8px rgba(0, 0, 0, 0.04),
    0 8px 16px rgba(0, 0, 0, 0.04);
  
  --shadow-clay-hover:
    0 2px 4px rgba(0, 0, 0, 0.06),
    0 4px 8px rgba(0, 0, 0, 0.06),
    0 8px 16px rgba(0, 0, 0, 0.06),
    0 16px 32px rgba(0, 0, 0, 0.06);
  
  --shadow-clay-pressed:
    inset 0 2px 4px rgba(0, 0, 0, 0.08),
    inset 0 4px 8px rgba(0, 0, 0, 0.06);
  
  /* Glass Shadows */
  --shadow-glass:
    0 4px 6px rgba(0, 0, 0, 0.05),
    0 10px 15px rgba(0, 0, 0, 0.1),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

/* ========================================
   CORES SEMÂNTICAS
   ======================================== */

:root {
  /* Textos */
  --color-text-primary: #0F172A;
  --color-text-secondary: #64748B;
  --color-text-tertiary: #94A3B8;
  --color-text-inverse: #FFFFFF;
  
  /* Backgrounds */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F8FAFC;
  --color-bg-tertiary: #F1F5F9;
  
  /* Borders */
  --color-border-light: #E2E8F0;
  --color-border-medium: #CBD5E1;
  --color-border-dark: #94A3B8;
  
  /* Status */
  --color-success: #10B981;
  --color-success-light: rgba(16, 185, 129, 0.1);
  
  --color-warning: #F59E0B;
  --color-warning-light: rgba(245, 158, 11, 0.1);
  
  --color-error: #EF4444;
  --color-error-light: rgba(239, 68, 68, 0.1);
  
  --color-info: #3B82F6;
  --color-info-light: rgba(59, 130, 246, 0.1);
}

/* ========================================
   TRANSIÇÕES E ANIMAÇÕES
   ======================================== */

:root {
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Easing Curves */
  --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-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

:root {
  --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;
}

/* ========================================
   LARGURAS E ALTURAS
   ======================================== */

:root {
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 64px;
  --topbar-height: 64px;
  --container-max-width: 1280px;
}

/* ========================================
   BREAKPOINTS (Apenas referência)
   ======================================== */

:root {
  /* Use com @media queries */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* ========================================
   APLICAÇÃO GLOBAL
   ======================================== */

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }