/* ============================================
   ANALYZAR — DESIGN TOKENS
   Dark editorial premium · Ref: Linear, Stripe, Lusion
   ============================================ */

:root {
  /* Cores base — preto profundo com matiz azulado */
  --color-bg-base: #07090d;
  --color-bg-elevated: #0c0f15;
  --color-bg-surface: #11151d;
  --color-bg-surface-hover: #161b25;
  --color-bg-overlay: rgba(7, 9, 13, 0.85);

  /* Azul corporativo Analyzar — mais profundo, premium */
  --color-brand-primary: #2563ff;
  --color-brand-primary-bright: #4d7dff;
  --color-brand-primary-dim: #1e4dd9;
  --color-brand-glow: rgba(37, 99, 255, 0.45);
  --color-brand-glow-soft: rgba(37, 99, 255, 0.12);

  /* Cinzas — escala fina */
  --color-gray-100: #f4f6fa;
  --color-gray-200: #d8dde5;
  --color-gray-300: #a8b0c0;
  --color-gray-400: #707788;
  --color-gray-500: #4a5061;
  --color-gray-600: #2e3340;
  --color-gray-700: #1f2330;
  --color-gray-800: #161924;
  --color-gray-900: #0c0e15;

  /* Texto — todos passam WCAG AA (4.5:1) sobre o fundo base */
  --color-text-primary: #f0f3f8;     /* 17.91:1 — AAA */
  --color-text-secondary: #a8b0c0;   /* 9.14:1 — AAA */
  --color-text-tertiary: #828a9f;    /* 5.77:1 — AA */
  --color-text-muted: #4a5061;       /* uso decorativo apenas */

  /* Acentos funcionais */
  --color-accent-success: #34d399;
  --color-accent-warning: #fbbf24;
  --color-accent-danger: #f87171;

  /* Bordas */
  --color-border-subtle: rgba(255, 255, 255, 0.06);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-strong: rgba(255, 255, 255, 0.18);
  --color-border-brand: rgba(37, 99, 255, 0.35);

  /* Tipografia */
  --font-display: 'Fraunces', 'GT Sectra', 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Escala tipográfica fluida */
  --fs-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --fs-sm: clamp(0.875rem, 0.84rem + 0.18vw, 0.9375rem);
  --fs-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --fs-lg: clamp(1.125rem, 1.07rem + 0.27vw, 1.25rem);
  --fs-xl: clamp(1.25rem, 1.18rem + 0.36vw, 1.5rem);
  --fs-2xl: clamp(1.5rem, 1.39rem + 0.55vw, 1.875rem);
  --fs-3xl: clamp(1.875rem, 1.7rem + 0.88vw, 2.5rem);
  --fs-4xl: clamp(2.25rem, 1.96rem + 1.45vw, 3.5rem);
  --fs-5xl: clamp(2.75rem, 2.27rem + 2.41vw, 4.75rem);
  --fs-6xl: clamp(3.5rem, 2.66rem + 4.18vw, 7rem);
  --fs-display: clamp(3rem, 2rem + 5vw, 8rem);

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

  /* Line height */
  --lh-tight: 1.05;
  --lh-snug: 1.2;
  --lh-normal: 1.45;
  --lh-relaxed: 1.6;
  --lh-loose: 1.8;

  /* Letter spacing */
  --ls-tighter: -0.04em;
  --ls-tight: -0.02em;
  --ls-normal: -0.01em;
  --ls-wide: 0.02em;
  --ls-wider: 0.08em;
  --ls-widest: 0.18em;

  /* Espaçamento */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-40: 10rem;
  --space-48: 12rem;

  /* Layout — wider que o padrão pra usar telas grandes */
  --container-narrow: 720px;
  --container-base: 1340px;
  --container-wide: 1640px;
  --container-xwide: 1820px;

  /* Bordas arredondadas */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Sombras — sutis, com tom azul */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 24px 80px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 60px rgba(37, 99, 255, 0.25);
  --shadow-glow-strong: 0 0 100px rgba(37, 99, 255, 0.4);

  /* Transições */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-anticipate: cubic-bezier(0.6, -0.05, 0.01, 0.99);

  --dur-instant: 100ms;
  --dur-fast: 200ms;
  --dur-base: 320ms;
  --dur-slow: 600ms;
  --dur-slower: 900ms;
  --dur-cinematic: 1200ms;

  /* Z-index */
  --z-base: 1;
  --z-elevated: 10;
  --z-sticky: 100;
  --z-overlay: 1000;
  --z-modal: 2000;
  --z-cursor: 9999;
}

/* ============================================
   RESET & BASE
   ============================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  background-image:
    radial-gradient(ellipse at top left, rgba(37, 99, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(37, 99, 255, 0.05) 0%, transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  /* Scroll nativo garantido — nunca alterar overflow do body em estado normal */
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background-color: var(--color-brand-primary);
  color: white;
}

/* Scrollbar premium */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--color-gray-700);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-base);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-600);
}

/* Focus visível e premium */
:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Utilitários */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--container-base);
  margin: 0 auto;
  padding-left: clamp(1.25rem, 4vw, 2.5rem);
  padding-right: clamp(1.25rem, 4vw, 2.5rem);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.container-wide {
  max-width: var(--container-wide);
}

.container-xwide {
  max-width: var(--container-xwide);
}