/* ==========================================================================
   DatomIQ - Design System Variables
   Sistema de design com tema espacial/estelar
   ========================================================================== */

:root {
   /* ========================================
     CORES - Paleta Espacial
     ======================================== */

   /* Cores principais */
   --deep-space: #020024;
   /* Background principal - Espaço profundo */
   --nebula-purple: #4B3B8B;
   /* Gradientes, botões, highlights */
   --stardust-grey: #C5CBD3;
   /* Textos secundários - claro para máximo contraste */
   --starlight-white: #FFFFFF;
   /* Títulos e texto principal */

   /* Variações com transparência para glassmorphism */
   --deep-space-90: rgba(2, 0, 36, 0.9);
   --deep-space-80: rgba(2, 0, 36, 0.8);
   --deep-space-70: rgba(2, 0, 36, 0.7);
   --deep-space-50: rgba(2, 0, 36, 0.5);

   --nebula-purple-80: rgba(75, 59, 139, 0.8);
   --nebula-purple-60: rgba(75, 59, 139, 0.6);
   --nebula-purple-40: rgba(75, 59, 139, 0.4);
   --nebula-purple-20: rgba(75, 59, 139, 0.2);

   --starlight-white-90: rgba(255, 255, 255, 0.9);
   --starlight-white-80: rgba(255, 255, 255, 0.8);
   --starlight-white-60: rgba(255, 255, 255, 0.6);
   --starlight-white-40: rgba(255, 255, 255, 0.4);
   --starlight-white-20: rgba(255, 255, 255, 0.2);
   --starlight-white-10: rgba(255, 255, 255, 0.1);
   --starlight-white-05: rgba(255, 255, 255, 0.05);

   /* Cores de estado */
   --success-green: #4ADE80;
   --error-red: #F87171;
   --warning-yellow: #FBBF24;

   /* ========================================
     TIPOGRAFIA
     ======================================== */

   /* Famílias de fonte */
   --font-heading: 'Prompt', sans-serif;
   /* Títulos e botões */
   --font-body: 'Montserrat', sans-serif;
   /* Corpo do texto */

   /* Tamanhos fluidos com clamp() - Mobile first */
   --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
   /* 12px - 14px */
   --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
   /* 14px - 16px */
   --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
   /* 16px - 18px */
   --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
   /* 18px - 20px */
   --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
   /* 20px - 24px */
   --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
   /* 24px - 32px */
   --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
   /* 30px - 40px */
   --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
   /* 36px - 48px */
   --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 4rem);
   /* 48px - 64px */

   /* Pesos de fonte */
   --font-light: 300;
   --font-regular: 400;
   --font-medium: 500;
   --font-semibold: 600;
   --font-bold: 700;

   /* Line heights */
   --leading-tight: 1.2;
   --leading-snug: 1.375;
   --leading-normal: 1.5;
   --leading-relaxed: 1.625;
   --leading-loose: 2;

   /* Letter spacing */
   --tracking-tighter: -0.05em;
   --tracking-tight: -0.025em;
   --tracking-normal: 0;
   --tracking-wide: 0.025em;
   --tracking-wider: 0.05em;
   --tracking-widest: 0.1em;

   /* ========================================
     ESPACAMENTO
     ======================================== */

   --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 */

   /* Padding de seção responsivo */
   --section-padding-y: clamp(4rem, 8vw, 8rem);
   --section-padding-x: clamp(1rem, 5vw, 2rem);

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

   --container-max: 1200px;
   --container-narrow: 800px;
   --container-wide: 1400px;

   /* ========================================
     BORDAS E RADIUS
     ======================================== */

   --radius-sm: 0.25rem;
   /* 4px */
   --radius-md: 0.5rem;
   /* 8px */
   --radius-lg: 1rem;
   /* 16px */
   --radius-xl: 1.5rem;
   /* 24px */
   --radius-2xl: 2rem;
   /* 32px */
   --radius-full: 9999px;
   /* Círculo */

   /* Bordas para glassmorphism */
   --border-glass: 1px solid var(--starlight-white-20);
   --border-glass-light: 1px solid var(--starlight-white-10);
   --border-glass-strong: 1px solid var(--starlight-white-40);

   /* ========================================
     SOMBRAS
     ======================================== */

   --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
   --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
   --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
   --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.25);
   --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.3);

   /* Sombras com cor (glow effect) */
   --shadow-glow-purple: 0 0 30px var(--nebula-purple-40);
   --shadow-glow-white: 0 0 20px var(--starlight-white-20);

   /* ========================================
     GLASSMORPHISM
     ======================================== */

   --glass-blur: blur(16px);
   --glass-blur-strong: blur(24px);
   --glass-blur-light: blur(8px);

   --glass-bg: var(--starlight-white-05);
   --glass-bg-dark: var(--deep-space-70);
   --glass-bg-light: var(--starlight-white-10);

   /* ========================================
     TRANSICOES E ANIMACOES
     ======================================== */

   --transition-fast: 150ms ease;
   --transition-base: 250ms ease;
   --transition-slow: 350ms ease;
   --transition-slower: 500ms ease;

   /* Easing functions */
   --ease-in-out-cubic: cubic-bezier(0.65, 0, 0.35, 1);
   --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
   --ease-in-expo: cubic-bezier(0.95, 0.05, 0.795, 0.035);

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

   --z-base: 1;
   --z-dropdown: 100;
   --z-sticky: 200;
   --z-fixed: 300;
   --z-modal-backdrop: 400;
   --z-modal: 500;
   --z-popover: 600;
   --z-tooltip: 700;

   /* ========================================
     GRADIENTES
     ======================================== */

   /* Gradiente principal do background */
   --gradient-space: linear-gradient(180deg,
         var(--deep-space) 0%,
         #0a0a2e 50%,
         var(--deep-space) 100%);

   /* Gradiente de nebulosa */
   --gradient-nebula: radial-gradient(ellipse at 50% 50%,
         var(--nebula-purple-40) 0%,
         transparent 70%);

   /* Gradiente para botões */
   --gradient-button: linear-gradient(135deg,
         var(--nebula-purple) 0%,
         #6B5BA8 100%);

   /* Gradiente para hover */
   --gradient-button-hover: linear-gradient(135deg,
         #5B4B9B 0%,
         #7B6BB8 100%);
}

/* ========================================
   MEDIA QUERIES - Breakpoints Reference
   ========================================

   Mobile:  < 768px  (default - mobile first)
   Tablet:  >= 768px
   Desktop: >= 1024px
   Large:   >= 1280px

   ======================================== */