/* ============================================================
   STMF — GESTION LOCATIVE | global.css
   Design tokens, reset, typography
   © 2026 STMF — Architecture: Andry / Dev
   ============================================================ */

/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ─── Design Tokens ─── */
:root {
  /* Palette STMF - Charte graphique */
  --c-bg:          #ffffff;
  --c-bg-2:        #EEF1F4;
  --c-bg-3:        #f8f9fa;
  --c-primary:     #0B2346;
  --c-primary-light: #1769C2;
  --c-primary-dim: rgba(11, 35, 70, 0.14);
  --c-primary-glow: rgba(23, 105, 194, 0.28);
  --c-white:       #ffffff;
  --c-text:        rgba(11, 35, 70, 0.92);
  --c-text-sec:    rgba(11, 35, 70, 0.70);
  --c-text-muted:  #7B858F;

  /* Legacy aliases for compatibility */
  --c-red:         #0B2346;
  --c-red-light:   #1769C2;
  --c-red-dim:     rgba(11, 35, 70, 0.14);
  --c-red-glow:    rgba(23, 105, 194, 0.28);

  /* Glass system - Light mode */
  --g-bg:          rgba(11, 35, 70, 0.04);
  --g-bg-hover:    rgba(11, 35, 70, 0.08);
  --g-bg-strong:   rgba(11, 35, 70, 0.10);
  --g-border:      rgba(11, 35, 70, 0.10);
  --g-border-h:    rgba(11, 35, 70, 0.18);
  --g-border-red:  rgba(23, 105, 194, 0.40);
  --g-blur:        blur(28px) saturate(160%);
  --g-blur-sm:     blur(16px) saturate(140%);
  --g-shadow:      0 8px 32px rgba(11, 35, 70, 0.12), inset 0 1px 0 rgba(255,255,255,0.9);
  --g-shadow-h:    0 20px 56px rgba(11, 35, 70, 0.18), inset 0 1px 0 rgba(255,255,255,0.95);
  --g-shadow-red:  0 0 40px rgba(23, 105, 194, 0.15);

  /* Typography */
  --ff-display:    'Space Grotesk', -apple-system, sans-serif;
  --ff-body:       'Inter', -apple-system, sans-serif;

  /* Scale */
  --ts-xs:   0.75rem;   /* 12px */
  --ts-sm:   0.875rem;  /* 14px */
  --ts-base: 1rem;      /* 16px */
  --ts-lg:   1.125rem;  /* 18px */
  --ts-xl:   1.25rem;   /* 20px */
  --ts-2xl:  1.5rem;    /* 24px */
  --ts-3xl:  1.875rem;  /* 30px */
  --ts-4xl:  clamp(2rem, 3.5vw, 2.5rem);
  --ts-5xl:  clamp(2.5rem, 4.5vw, 3.5rem);
  --ts-hero: clamp(2.75rem, 5.5vw, 4.5rem);

  /* Radius */
  --r-sm:   8px;
  --r-md:   14px;
  --r-lg:   22px;
  --r-xl:   32px;
  --r-pill: 9999px;

  /* Spacing */
  --sp-section: clamp(5rem, 9vw, 8rem);
  --sp-nav:     160px; /* navbar height compensation - logo plus grand */

  /* Transitions */
  --t-fast:   0.18s ease;
  --t-base:   0.30s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow:   0.55s cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --max-w: 1200px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  font-size: var(--ts-base);
  line-height: 1.65;
  color: var(--c-text);
  background-color: var(--c-bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Animated background ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 15% 30%,  rgba(23, 105, 194, 0.06)  0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 70%,  rgba(11, 35, 70, 0.04)   0%, transparent 60%),
    radial-gradient(ellipse 80% 40% at 50% 100%, rgba(238, 241, 244, 0.8) 0%, transparent 70%);
}

/* ─── Global layout wrapper ─── */
.site-wrap {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-display);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--c-primary);
}

h1 { font-size: var(--ts-hero); }
h2 { font-size: var(--ts-5xl); }
h3 { font-size: var(--ts-3xl); }
h4 { font-size: var(--ts-2xl); }
h5 { font-size: var(--ts-xl);  }
h6 { font-size: var(--ts-lg);  }

p {
  color: var(--c-text-sec);
  line-height: 1.70;
}

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

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

ul, ol { list-style: none; }

button, input, textarea, select {
  font-family: var(--ff-body);
  font-size: var(--ts-base);
}

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

/* ─── Utilities ─── */
.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(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Text utilities */
.text-red     { color: var(--c-red); }
.text-muted   { color: var(--c-text-muted); }
.text-center  { text-align: center; }
.font-display { font-family: var(--ff-display); }

/* SVG filter for liquid glass distortion (progressive enhancement) */
.svg-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

/* ─── Focus / Accessibility ─── */
:focus-visible {
  outline: 2px solid var(--c-primary-light);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ─── Selection ─── */
::selection {
  background: var(--c-primary-dim);
  color: var(--c-primary);
}

/* ─── Scrollbar (Webkit) ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: rgba(23, 105, 194, 0.4); border-radius: var(--r-pill); }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary-light); }

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