/*==========================
  GENEFTY - Main Styles
  Design system + composants
==========================*/
@import url('./design-system.css');

/*==========================
  RESET & BASE
==========================*/
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

:root {
  --header-height: 120px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg-page);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/*==========================
  CONTAINER
==========================*/
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-inline: var(--container-padding);
}

/*==========================
  SECTION
==========================*/
section {
  padding-block: var(--section-padding);
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.section-heading {
  text-align: center;
  margin-bottom: var(--space-12);
  max-width: 800px;
  margin-inline: auto;
}

.section-title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.section-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--space-4) auto 0;
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 600px;
  margin-inline: auto;
}

/*==========================
  HEADER
==========================*/
.site-header {
  position: sticky;
  top: 0;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  height: var(--header-height);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: 0;
  height: 100%;
}

.brand-logo {
  height: 90px;
  width: auto;
  transition: transform var(--transition-base);
}

.brand:hover .brand-logo {
  transform: scale(1.05);
}

.main-nav {
  display: flex;
  gap: var(--space-6);
  font-weight: var(--fw-medium);
  font-size: var(--fs-sm);
}

.main-nav a {
  position: relative;
  padding-block: var(--space-1);
  transition: color var(--transition-base);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.main-nav a:hover {
  color: var(--color-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* Menu mobile */
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: transparent;
  transition: background var(--transition-base);
}

.mobile-menu-toggle:hover {
  background: var(--bg-hover);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px auto;
  transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100dvh;
  background: rgba(11, 18, 32, 1);
  backdrop-filter: blur(10px);
  padding: var(--space-4);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-12px);
  transition: all var(--transition-base);
  z-index: var(--z-modal-backdrop);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: min(92vw, 430px);
  margin: 0 auto;
  height: auto;
  justify-content: center;
}

.mobile-nav a {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  font-weight: var(--fw-semibold);
  padding: var(--space-3);
  border-radius: var(--radius-xl);
  text-align: center;
  color: var(--text-inverse);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: all var(--transition-base);
}

.mobile-nav a:hover {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-inverse);
}

.mobile-nav .btn {
  width: 100%;
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: background var(--transition-base), transform var(--transition-base);
  z-index: 2;
}

.mobile-menu-close:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.05);
}

.mobile-menu-close i {
  color: #ffffff;
  opacity: 1;
}

/*==========================
  BUTTONS
==========================*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 1rem 2rem;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  min-height: 48px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.btn:hover::before {
  transform: translateX(0);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(37, 99, 235, 0.08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-icon {
  display: inline-flex;
  font-size: 1.25rem;
}

/* CTA pulse animation */
.btn-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/*==========================
  CARDS
==========================*/
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: var(--card-padding);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  z-index: var(--z-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-muted);
}

/*==========================
  BADGES
==========================*/
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.375rem 0.875rem;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge-trust {
  background: var(--color-trust-bg);
  color: var(--color-trust);
}

/*==========================
  LANG SWITCHER
==========================*/
.lang-switcher {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  display: flex;
  gap: var(--space-2);
  background: var(--bg-surface);
  padding: var(--space-1);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-fixed);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
}

.lang-switcher a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  opacity: 0.6;
  transition: all var(--transition-base);
}

.lang-switcher a:hover {
  opacity: 1;
  background: var(--bg-hover);
}

.lang-switcher a.active {
  opacity: 1;
  background: rgba(37, 99, 235, 0.1);
}

.lang-switcher img {
  width: 20px;
  height: 15px;
  object-fit: cover;
  border-radius: 2px;
}

/*==========================
  RESPONSIVE
==========================*/
@media (max-width: 1024px) {
  :root {
    --header-height: 96px;
  }

  .header-content {
    position: relative;
    justify-content: flex-start;
  }

  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: calc(var(--z-fixed) + 1);
  }

  .mobile-menu {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header-cta {
    display: none;
  }

  .lang-switcher {
    top: var(--space-2);
    right: var(--space-2);
    transform: none;
  }

  body.menu-open .lang-switcher {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-50%) scale(0.92);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 84px;
  }

  .brand-logo {
    height: 72px;
  }

  .section-title {
    font-size: var(--fs-3xl);
  }

  .section-subtitle {
    font-size: var(--fs-base);
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 76px;
  }

  .brand-logo {
    height: 62px;
  }

  .lang-switcher {
    top: var(--space-2);
    right: var(--space-2);
    transform: none;
  }

  .btn {
    width: 100%;
    max-width: 420px;
    white-space: normal;
    text-align: center;
    line-height: 1.25;
  }
}

/*==========================
  UTILITIES
==========================*/
.text-center {
  text-align: center;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Focus visible pour accessibilité */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}