/* ============================================
   DESIGN TOKENS — Ja Face Painting
   Source de vérité absolue. Aucun hex ailleurs.
   Direction : "Confetti"
   ============================================ */

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

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

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

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

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

ul,
ol {
  list-style: none;
}

/* --- Custom Properties --- */
:root {
  /* Palette — Confetti */
  --color-bg:          #FFF9F2;
  --color-surface:     #FFF2E8;
  --color-text:        #2D2B3F;
  --color-text-muted:  rgba(45, 43, 63, 0.55);
  --color-accent:      #E8527A;
  --color-accent-hover:#D4436A;
  --color-violet:      #7C5CE0;
  --color-violet-hover:#6A4ACC;
  --color-emeraude:    #2EB89E;
  --color-emeraude-hover:#259A84;
  --color-soleil:      #F5A623;
  --color-soleil-hover:#E0951A;
  --color-border:      rgba(45, 43, 63, 0.1);

  /* Typographie */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --fs-hero:     clamp(2.5rem, 5vw + 1rem, 4.5rem);
  --fs-h2:       clamp(2rem, 3.5vw + 0.5rem, 3.5rem);
  --fs-h3:       clamp(1.5rem, 2vw + 0.5rem, 2rem);
  --fs-service:  clamp(2rem, 5vw + 0.5rem, 6rem);
  --fs-body:     clamp(1rem, 0.5vw + 0.875rem, 1.125rem);
  --fs-small:    clamp(0.8125rem, 0.3vw + 0.75rem, 0.875rem);
  --fs-label:    0.75rem;

  --lh-heading:  1.1;
  --lh-body:     1.65;

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

  /* Espacement */
  --space-xs:    0.5rem;
  --space-sm:    1rem;
  --space-md:    1.5rem;
  --space-lg:    2.5rem;
  --space-xl:    4rem;
  --space-2xl:   6rem;
  --space-3xl:   8rem;
  --space-section: clamp(4rem, 8vw, 8rem);

  /* Layout */
  --container-max:   1280px;
  --container-pad:   clamp(1.25rem, 4vw, 2.5rem);

  /* Borders & Radius */
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-pill:  999px;

  /* Transitions */
  --ease-out:    cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.42, 0, 0.58, 1);
  --duration-fast:   200ms;
  --duration-normal: 400ms;
  --duration-slow:   800ms;

  /* Z-index */
  --z-header:  100;
  --z-overlay: 200;
  --z-modal:   300;
}

/* --- Base Styles --- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-heading);
  color: var(--color-text);
  font-optical-sizing: auto;
}

h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
  max-width: 65ch;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* --- Section --- */
.section {
  padding-block: var(--space-section);
}

.section--surface {
  background-color: var(--color-surface);
}

/* --- Links & CTA --- */
a:hover,
a:focus-visible {
  color: var(--color-accent);
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: #fff;
  background-color: var(--color-accent);
  border-radius: var(--radius-pill);
  transition: background-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.cta:hover,
.cta:focus-visible {
  background-color: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-2px);
}

.cta--outline {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.cta--outline:hover,
.cta--outline:focus-visible {
  background-color: var(--color-accent);
  color: #fff;
}

/* --- Form --- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-field label {
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.form-field input,
.form-field textarea {
  padding: var(--space-sm);
  font-size: var(--fs-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

/* --- Focus Visible --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* --- GSAP Initial States --- */
.gsap-float-in {
  opacity: 0;
  transform: translateY(30px);
}

.gsap-cascade {
  opacity: 0;
  transform: translateY(40px);
}

.gsap-cascade-left {
  opacity: 0;
  transform: translateX(-40px);
}

.gsap-cascade-right {
  opacity: 0;
  transform: translateX(40px);
}

.gsap-paint-wipe {
  clip-path: inset(0 100% 0 0);
}

.gsap-scale-in {
  opacity: 0;
  transform: scale(1.05);
}

.gsap-pop-in {
  opacity: 0;
  transform: scale(0.85);
}

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

  .gsap-float-in,
  .gsap-cascade,
  .gsap-cascade-left,
  .gsap-cascade-right,
  .gsap-scale-in,
  .gsap-pop-in {
    opacity: 1;
    transform: none;
  }

  .gsap-paint-wipe {
    clip-path: none;
  }

  .confetti-container {
    display: none;
  }
}

/* --- Utilities --- */
.text-accent   { color: var(--color-accent); }
.text-violet   { color: var(--color-violet); }
.text-emeraude { color: var(--color-emeraude); }
.text-soleil   { color: var(--color-soleil); }
.text-muted    { color: var(--color-text-muted); }

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