/* ============================================
   FX GROUP — Site Vitrine Institutionnel
   Design: Family Office / Private Equity
   Sobriété, stabilité, crédibilité
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&display=swap');

/* --- Variables --- */
:root {
  --color-red: #C4272E;
  --color-red-light: #E52421;
  --color-grey-logo: #6D6E71;
  --color-anthracite: #1a1a2e;
  --color-dark: #2c2c2c;
  --color-text: #4a4a4a;
  --color-text-light: #7a7a7a;
  --color-white: #ffffff;
  --color-bg-light: #f8f8f8;
  --color-bg-warm: #fafafa;
  --color-footer: #1a1a1a;
  --color-border: #e8e8e8;
  --color-border-light: #f0f0f0;

  --font-main: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-width: 1100px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  line-height: 1.8;
  background: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

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

ul { list-style: none; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--color-anthracite);
  text-align: center;
  margin-bottom: 16px;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-red);
  margin: 18px auto 0;
}

.section-intro {
  font-size: 0.95rem;
  color: var(--color-text-light);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 50px;
  line-height: 1.8;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 24px 0;
  transition: all var(--transition);
  background: transparent;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 14px 0;
  box-shadow: 0 1px 0 var(--color-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  height: 44px;
  transition: height var(--transition);
}

.header.scrolled .header-logo {
  height: 36px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 8px 14px;
  color: var(--color-anthracite);
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-red);
}

.nav-separator {
  color: var(--color-border);
  font-weight: 300;
  user-select: none;
  font-size: 0.8rem;
}

/* Burger */
.burger-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  z-index: 1001;
}

.burger-menu span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-anthracite);
  transition: all var(--transition);
}

.burger-menu.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger-menu.active span:nth-child(2) {
  opacity: 0;
}
.burger-menu.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.active {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-anthracite);
  padding: 10px;
}

.mobile-menu a:hover {
  color: var(--color-red);
}

/* ============================================
   HERO — Clean, no image, institutional
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: var(--color-white);
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, var(--color-border), transparent);
}

.hero-logo {
  height: 120px;
  margin-bottom: 50px;
}

.hero-tagline {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 6px;
  color: var(--color-red);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--color-anthracite);
  letter-spacing: 2px;
  line-height: 1.4;
  margin-bottom: 28px;
  max-width: 700px;
}

.hero-title strong {
  font-weight: 600;
}

.hero-subtitle {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-text-light);
  max-width: 560px;
  line-height: 1.9;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.3;
}

.hero-scroll svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-text-light);
  stroke-width: 2;
  fill: none;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  padding: 100px 0;
  background: var(--color-bg-light);
}

.about-content {
  max-width: 750px;
  margin: 0 auto;
}

.about-content p {
  margin-bottom: 20px;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text);
  text-align: justify;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* ============================================
   SERVICES — 3 Key Blocks
   ============================================ */
.services {
  padding: 100px 0;
  background: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border-light);
  margin-top: 10px;
}

.service-card {
  background: var(--color-white);
  padding: 48px 36px;
  text-align: center;
  transition: background var(--transition);
}

.service-card:hover {
  background: var(--color-bg-warm);
}

.service-number {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--color-red);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.service-card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-anthracite);
  margin-bottom: 20px;
  line-height: 1.5;
}

.service-card p {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--color-text-light);
}

/* ============================================
   KAFEX GESTION — Partner Block
   ============================================ */
.kafex {
  padding: 80px 0;
  background: var(--color-bg-light);
}

.kafex-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.kafex-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.kafex-inner h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-anthracite);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.kafex-divider {
  width: 40px;
  height: 2px;
  background: var(--color-red);
  margin: 0 auto 28px;
}

.kafex-inner p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 14px;
}

.kafex-cta {
  display: inline-block;
  margin-top: 24px;
  padding: 12px 32px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-anthracite);
  border: 1.5px solid var(--color-anthracite);
  transition: all var(--transition);
}

.kafex-cta:hover {
  background: var(--color-anthracite);
  color: var(--color-white);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  padding: 100px 0;
  background: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-anthracite);
  margin-bottom: 8px;
}

.contact-info h3::after {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background: var(--color-red);
  margin-top: 14px;
  margin-bottom: 28px;
}

.contact-detail {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.contact-detail-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-detail-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-grey-logo);
  stroke-width: 1.5;
  fill: none;
}

.contact-detail p {
  font-size: 0.92rem;
  color: var(--color-text);
  line-height: 1.7;
}

.contact-detail a {
  color: var(--color-anthracite);
  font-weight: 500;
}

.contact-detail a:hover {
  color: var(--color-red);
}

/* Form */
.contact-form {
  border: 1px solid var(--color-border-light);
  padding: 40px;
}

.contact-form h3 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-anthracite);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  color: var(--color-dark);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-anthracite);
}

.form-group textarea {
  height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-submit {
  display: block;
  width: 100%;
  padding: 14px;
  background: var(--color-anthracite);
  color: var(--color-white);
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  border: 1.5px solid var(--color-anthracite);
  cursor: pointer;
  transition: all var(--transition);
}

.form-submit:hover {
  background: transparent;
  color: var(--color-anthracite);
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success.show {
  display: block;
}

.form-success svg {
  width: 40px;
  height: 40px;
  stroke: #4a9e6e;
  stroke-width: 1.5;
  fill: none;
  margin: 0 auto 14px;
}

.form-success p {
  font-size: 0.95rem;
  color: var(--color-text);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-footer);
  padding: 50px 0 0;
  color: rgba(255, 255, 255, 0.55);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand img {
  height: 40px;
  filter: brightness(0) invert(1);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.82rem;
  line-height: 1.8;
}

.footer h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-white);
  margin-bottom: 18px;
}

.footer-links a {
  display: block;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  padding: 4px 0;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer-contact-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
  font-size: 0.82rem;
}

.footer-contact-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 3px;
  stroke: rgba(255, 255, 255, 0.4);
  stroke-width: 1.5;
  fill: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   SCROLL ANIMATIONS (subtle only)
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================
   LEGAL PAGE
   ============================================ */
.legal-page {
  padding: 140px 0 80px;
  min-height: 100vh;
}

.legal-page .container {
  max-width: 750px;
}

.legal-page h1 {
  font-size: 1.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-anthracite);
  margin-bottom: 40px;
  text-align: center;
}

.legal-page h1::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-red);
  margin: 16px auto 0;
}

.legal-page h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-anthracite);
  margin: 36px 0 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.legal-page p {
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 10px;
}

.legal-page ul {
  margin: 10px 0 10px 24px;
  list-style: disc;
}

.legal-page li {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 4px;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 40px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-light);
}

.legal-back:hover {
  color: var(--color-anthracite);
}

.legal-back svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: 0;
    background: transparent;
  }

  .service-card {
    border-bottom: 1px solid var(--color-border-light);
  }

  .service-card:last-child {
    border-bottom: none;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .burger-menu {
    display: flex;
  }

  .hero {
    padding: 100px 24px 60px;
    min-height: auto;
  }

  .hero-logo {
    height: 80px;
    margin-bottom: 36px;
  }

  .hero-title {
    font-size: 1.5rem;
    letter-spacing: 1px;
  }

  .hero-tagline {
    font-size: 0.7rem;
    letter-spacing: 4px;
  }

  .hero::after {
    height: 50px;
  }

  .about,
  .services,
  .contact {
    padding: 70px 0;
  }

  .section-title {
    font-size: 1.2rem;
    letter-spacing: 3px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}