:root {

  --c-primary:        #5b294f;
  --c-primary-dark:   #47203f;
  --c-primary-deeper: #2d1729;
  --c-primary-light:  #734064;
  --c-accent:         #b97945;

  --c-dark:       #180d15;
  --c-dark-soft:  #2c1d29;
  --c-dark-green: #263b2b;
  --c-white:      #ffffff;
  --c-off-white:  #fffaf4;
  --c-border:     #e3d2db;

  --c-text:       #1b0d18;
  --c-text-muted: #6b4f66;
  --c-text-light: #9e7d99;

  --g-hero:    linear-gradient(135deg, #1b0d18 0%, #263b2b 100%);
  --g-primary: linear-gradient(135deg, #5b294f 0%, #9f6b42 100%);
  --g-card:    linear-gradient(145deg, #ffffff 0%, #f7efe8 100%);

  --f-primary:   'Playfair Display', Georgia, serif;
  --f-secondary: 'Inter', Arial, sans-serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.25rem;
  --fs-2xl:  1.5rem;
  --fs-3xl:  1.875rem;
  --fs-4xl:  2.25rem;
  --fs-hero: clamp(2.25rem, 3.7vw, 3.35rem);

  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  1.5rem;
  --sp-lg:  2rem;
  --sp-xl:  3rem;
  --sp-2xl: 5rem;
  --sp-3xl: 8rem;

  --r-sm:   0.375rem;
  --r-md:   0.75rem;
  --r-lg:   1.25rem;
  --r-xl:   2rem;
  --r-full: 9999px;

  --sh-sm:     0 1px 4px rgba(27, 13, 24, 0.06);
  --sh-md:     0 4px 14px rgba(27, 13, 24, 0.07);
  --sh-lg:     0 6px 18px rgba(27, 13, 24, 0.07);
  --sh-card:   0 4px 14px rgba(27, 13, 24, 0.05);
  --sh-accent: none;

  --t-fast: 0.15s ease;
  --t-base: 0.25s ease;
  --t-slow: 1.2s cubic-bezier(0.22, 0.8, 0.24, 1);

  --z-nav: 50;

  --container:  1180px;
  --section-py: clamp(64px, 7vw, 96px);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--f-secondary);
  font-size: var(--fs-base);
  color: var(--c-text);
  background: var(--c-off-white);
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input,
textarea {
  font: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(18px, 5vw, 56px);
}

section {
  padding-block: var(--section-py);
}

.section-header {
  max-width: 760px;
  margin: 0 auto var(--sp-2xl);
  text-align: center;
}

.section-kicker {
  display: inline-block;
  margin-bottom: 16px;
  color: #e3b879;
  font-weight: 900;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-header .section-kicker {
  color: var(--c-accent);
}

h1, h2, h3 {
  font-family: var(--f-primary);
  line-height: 1.04;
}

h1 {
  font-size: var(--fs-hero);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.75rem, 2.5vw, 2.4rem);
  letter-spacing: 0;
}

h3 {
  font-size: 1.35rem;
}

.section-header h2 {
  color: var(--c-dark);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  min-height: 46px;
  padding: 0 22px;
  background: var(--g-primary);
  color: var(--c-white);
  font-family: var(--f-secondary);
  font-size: var(--fs-base);
  font-weight: 800;
  border-radius: var(--r-full);
  box-shadow: var(--sh-accent);
  transition: transform var(--t-slow), box-shadow var(--t-slow);
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: var(--c-primary-light);
  color: var(--c-white);
  box-shadow: 0 5px 14px rgba(91, 41, 79, 0.12);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  min-height: 46px;
  padding: 0 22px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--c-white);
  font-family: var(--f-secondary);
  font-size: var(--fs-base);
  font-weight: 800;
  border-radius: var(--r-full);
  border: 1px solid rgba(255, 255, 255, 0.32);
  transition: transform var(--t-slow), background var(--t-slow), border-color var(--t-slow);
  white-space: nowrap;
}

.btn-secondary:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.58);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Copyright RZU Informatique */