/* ===============================
   DESIGN SYSTEM - VARIABLES
   Plataforma Educativa Premium
   Paleta Cálida (#fff0d9)
   =============================== */

:root {
  /* 🎨 Paleta Principal — Cálidos + Neutrales */
  --color-primary: #d4914a;
  --color-primary-light: #e8a96a;
  --color-primary-lighter: #f0c896;
  --color-primary-dark: #b87a3a;
  --color-primary-rgb: 212, 145, 74;

  --color-accent: #c67b3e;
  --color-accent-light: #d4914a;
  --color-accent-rgb: 198, 123, 62;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-danger-light: #fca5a5;
  --color-danger-bg: #fef2f2;

  /* 🌊 Fondos */
  --color-background: #fff9f0;
  --color-background-alt: #fff0d9;
  --color-surface: #ffffff;
  --color-surface-hover: #fffaf3;

  /* 📝 Texto */
  --color-text-primary: #3d2e1f;
  --color-text-secondary: #6b5744;
  --color-text-muted: #a08b73;
  --color-text-inverse: #ffffff;

  /* 🔲 Bordes */
  --color-border: #e8ddd0;
  --color-border-hover: #d4c4b0;

  /* 🌈 Gradientes */
  --gradient-hero: linear-gradient(
    135deg,
    #5a3825 0%,
    #8b5e3c 40%,
    #c67b3e 80%,
    #d4914a 100%
  );
  --gradient-hero-overlay: linear-gradient(
    180deg,
    rgba(93, 62, 38, 0.6) 0%,
    rgba(198, 123, 62, 0.3) 100%
  );
  --gradient-card: linear-gradient(135deg, #ffffff 0%, #fffaf3 100%);
  --gradient-accent: linear-gradient(135deg, #c67b3e 0%, #d4914a 100%);
  --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);

  /* 🔠 Tipografía */
  --font-family-base:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-hero: clamp(2.5rem, 5vw, 4.5rem);

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

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

  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.05em;
  --letter-spacing-wider: 0.1em;

  /* 📏 Espaciado */
  --spacing-2xs: 0.25rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --spacing-5xl: 8rem;

  /* 📐 Bordes */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* 🧩 Sombras */
  --shadow-xs: 0 1px 2px rgba(61, 46, 31, 0.04);
  --shadow-sm:
    0 1px 3px rgba(61, 46, 31, 0.06), 0 1px 2px rgba(61, 46, 31, 0.04);
  --shadow-md:
    0 4px 6px -1px rgba(61, 46, 31, 0.07), 0 2px 4px -2px rgba(61, 46, 31, 0.05);
  --shadow-lg:
    0 10px 15px -3px rgba(61, 46, 31, 0.08),
    0 4px 6px -4px rgba(61, 46, 31, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(61, 46, 31, 0.08),
    0 8px 10px -6px rgba(61, 46, 31, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(61, 46, 31, 0.15);
  --shadow-primary: 0 10px 30px -5px rgba(var(--color-primary-rgb), 0.3);
  --shadow-card-hover: 0 20px 40px -10px rgba(var(--color-primary-rgb), 0.15);

  /* 🪟 Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(232, 221, 208, 0.5);
  --glass-blur: blur(20px);

  /* 🎬 Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* 🎯 Easing premium */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in-back: cubic-bezier(0.36, 0, 0.66, -0.56);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);

  /* 📐 Layout */
  --max-width: 1200px;
  --max-width-sm: 640px;
  --max-width-md: 768px;
  --max-width-lg: 1024px;

  /* 🖥️ Breakpoints */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;

  /* 📏 Sidebar */
  --sidebar-width-collapsed: 64px;
  --sidebar-width-expanded: 260px;
  --navbar-height: 0px;
}