/* ============================================
   PLAGPREVENT V2 — LAYOUT V3
   Navigation, Sections, Hero, Grids — WHITE NACRÉ
   ============================================ */

/* ─── Announcement Banner ─── */
.announce-bar {
  background: linear-gradient(90deg, #0e4b5c, #0d7490);
  color: #fff;
  font-size: var(--fz-xs);
  position: relative;
  z-index: calc(var(--z-nav) + 1);
  overflow: hidden;
}

.announce-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-6);
  text-align: center;
  flex-wrap: wrap;
}

.announce-bar__inner p {
  margin: 0;
}

.announce-bar__link {
  color: #67e8f9;
  text-decoration: none;
  font-weight: var(--fw-semi);
  white-space: nowrap;
}
.announce-bar__link:hover { text-decoration: underline; }

.announce-bar__close {
  background: none;
  border: none;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 2px 6px;
  margin-left: var(--space-2);
  transition: color 0.2s;
}
.announce-bar__close:hover { color: #fff; }

.announce-bar.is-hidden { display: none; }

/* ─── Nav ─── */
.nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  background: transparent;
  transition: background 0.4s, box-shadow 0.4s, transform 0.4s var(--ease-out);
}

.nav.is-scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: 0 1px 0 var(--glass-border), var(--shadow-md);
  border-bottom: var(--border-glass);
}

.nav.is-hidden {
  transform: translateY(-100%);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fz-xl);
}

.nav__logo img {
  height: 40px;
  width: auto;
}

.nav__logo-text {
  background: var(--g-hero-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--fz-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-normal);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--g-hero);
  transition: width 0.3s var(--ease-out);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--text-primary);
}
.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

/* Dropdown container */
.nav__dropdown {
  position: relative;
}

.nav__link--dd {
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav__link--dd .chev {
  width: 14px;
  height: 14px;
  transition: transform 0.25s;
}

.nav__dd-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 220px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3) 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 200;
}

.nav__dropdown:hover .nav__dd-panel,
.nav__dropdown:focus-within .nav__dd-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown:hover .nav__link--dd .chev {
  transform: rotate(180deg);
}

.nav__dd-item {
  display: block;
  padding: var(--space-2) var(--space-5);
  font-size: var(--fz-sm);
  color: var(--fg-secondary);
  text-decoration: none;
  font-weight: var(--fw-medium);
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0;
  text-transform: none;
}

.nav__dd-item:hover {
  background: var(--bg-surface);
  color: var(--fg-primary);
}

/* ─── Méga-menu (Produits) & dropdowns enrichis ─── */
.nav__dd-panel--mega {
  left: 0;
  transform: translateY(-8px);
  width: min(720px, calc(100vw - 2rem));
  padding: var(--space-5) var(--space-6);
}
.nav__dropdown:hover .nav__dd-panel--mega,
.nav__dropdown:focus-within .nav__dd-panel--mega {
  transform: translateY(0);
}
[dir="rtl"] .nav__dd-panel--mega { left: auto; right: 0; }

.nav__mega {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4) var(--space-6);
}
.nav__mega-col { display: flex; flex-direction: column; gap: 2px; }
.nav__mega-col--accent {
  padding-left: var(--space-5);
  border-left: 1px solid var(--glass-border);
}
[dir="rtl"] .nav__mega-col--accent {
  padding-left: 0; padding-right: var(--space-5);
  border-left: none; border-right: 1px solid var(--glass-border);
}
.nav__mega-head {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--cyan-600);
  font-weight: var(--fw-semi);
  margin-bottom: var(--space-2);
}
.nav__mega-item {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.15s;
}
.nav__mega-item:hover { background: var(--bg-surface); }
.nav__mega-title {
  display: block;
  font-size: var(--fz-sm);
  font-weight: var(--fw-semi);
  color: var(--fg-primary);
  letter-spacing: 0;
  text-transform: none;
}
.nav__mega-desc {
  display: block;
  font-size: var(--fz-xs);
  color: var(--fg-muted);
  margin-top: 1px;
  line-height: 1.35;
}
/* Dropdown enrichi (Solutions) — titre + description en une colonne */
.nav__dd-panel--rich { min-width: 320px; padding: var(--space-3); }

/* Login link */
.nav__link--login {
  font-family: var(--font-body);
  font-size: var(--fz-sm);
  font-weight: var(--fw-medium);
  color: var(--fg-secondary);
  text-decoration: none;
  transition: color var(--duration-normal);
}
.nav__link--login:hover { color: var(--fg-primary); }

/* Mobile menu sections */
.nav__mobile-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

.nav__mobile-section strong {
  font-size: var(--fz-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-bottom: var(--space-1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ─── Language Switcher ─── */
.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(15,23,42,0.03);
  border: 1px solid rgba(15,23,42,0.08);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-3);
  color: var(--text-secondary);
  font-size: var(--fz-sm);
  cursor: none;
  transition: all var(--duration-normal);
  font-family: var(--font-body);
}

.lang-switcher__btn:hover {
  background: rgba(15,23,42,0.06);
  color: var(--text-primary);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-elevated);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s var(--ease-out);
  box-shadow: var(--shadow-lg);
  z-index: 10;
}

.lang-switcher.is-open .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: none;
  font-size: var(--fz-sm);
  transition: all var(--duration-fast);
  font-family: var(--font-body);
}

.lang-switcher__option:hover {
  background: rgba(6, 182, 212, 0.06);
  color: var(--text-primary);
}

.lang-switcher__option.is-active {
  color: var(--cyan-500);
  background: rgba(6, 182, 212, 0.05);
}

/* ─── Nav Toggle (Mobile) ─── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ─── Mobile Menu ─── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(30px);
  z-index: var(--z-overlay);
  padding: var(--space-8) var(--space-6);
  flex-direction: column;
  gap: var(--space-5);
}
.mobile-menu.is-open {
  display: flex;
}
.mobile-menu a {
  font-size: var(--fz-xl);
  color: var(--text-primary);
  font-weight: var(--fw-semi);
}

/* ─── Sections — BRIGHTER ALTERNATING ─── */
.section {
  position: relative;
  z-index: var(--z-content);
  padding: var(--section-padding) 0;
  overflow: hidden;
}

/* Alternating section backgrounds for depth */
.section:nth-child(even) {
  background: var(--bg-section-alt);
}

/* Section glow accent at top */
.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(15,23,42,0.06), rgba(15,23,42,0.06), transparent);
  opacity: 1;
}

/* Ambient glow behind sections */
.section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(6,182,212,0.02) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.section__header {
  margin-bottom: var(--space-9);
}

.section__header h2 {
  margin-top: var(--space-5);
  max-width: 20ch;
}

.section__header .section__desc {
  margin-top: var(--space-5);
}

/* ─── Hero Section ─── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: var(--z-content);
  background: transparent;
}

.hero::before {
  display: none; /* No top line on hero */
}

.hero__content {
  text-align: center;
  max-width: 900px;
  padding: var(--space-6);
  position: relative;
  z-index: 2;
}

/* ─── Hero Tagline ─── */
.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--fz-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--cyan-500);
  margin-bottom: var(--space-3);
}

.hero__content h1 {
  margin-top: var(--space-2);
  margin-bottom: var(--space-6);
  text-shadow: none;
}

.hero__content h1 .accent {
  color: var(--cyan-500);
  text-shadow: none;
}

.hero__sub {
  font-size: var(--fz-lg) !important;
  color: var(--text-secondary) !important;
  max-width: 60ch;
  margin: 0 auto var(--space-8);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-9);
}

.hero__trust {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fz-sm);
  color: var(--text-secondary);
  background: rgba(15,23,42,0.02);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(15,23,42,0.06);
}

.hero__trust-item .icon {
  font-size: var(--fz-lg);
}

/* ─── Scroll Indicator ─── */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-muted);
  font-size: var(--fz-sm);
  letter-spacing: var(--tracking-wide);
}

.scroll-indicator__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--cyan-400), transparent);
  animation: scan-sweep 2s ease infinite;
}

/* ─── KPI Strip ─── */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-9) 0;
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
  position: relative;
  z-index: var(--z-content);
  background: var(--bg-soft);
}

.kpi {
  text-align: center;
  padding: var(--space-5);
}

.kpi__value {
  font-family: var(--font-display);
  font-size: var(--fz-4xl);
  font-weight: var(--fw-bold);
  background: var(--g-hero-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.kpi__label {
  font-size: var(--fz-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ─── Grid layouts ─── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* ─── Pipeline ─── */
.pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
  margin-top: var(--space-8);
}

/* Connector line behind pipeline */
.pipeline::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-500), var(--emerald-500));
  opacity: 0.3;
  z-index: 0;
}

.pipeline__step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: #FFFFFF;
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
}

.pipeline__step:hover {
  border-color: rgba(6, 182, 212, 0.2);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pipeline__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--g-hero);
  color: #FFFFFF;
  font-weight: var(--fw-bold);
  font-size: var(--fz-lg);
  margin-bottom: var(--space-4);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.pipeline__step h4 {
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.pipeline__step p {
  font-size: var(--fz-sm);
  color: var(--text-secondary);
}

/* ─── Sources Section ─── */
.source-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: #FFFFFF;
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
  box-shadow: var(--shadow-sm);
}

.source-card:hover {
  border-color: rgba(6, 182, 212, 0.15);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.source-card__icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.source-card__label {
  font-weight: var(--fw-semi);
  color: var(--text-primary);
}

.source-card__count {
  font-size: var(--fz-sm);
  color: var(--text-muted);
}

/* ─── CTA Section ─── */
.section--cta {
  background: var(--bg-soft) !important;
  text-align: center;
  position: relative;
}

.section--cta::after {
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(6,182,212,0.03) 0%, transparent 60%);
}

.cta__form {
  max-width: 480px;
  margin: var(--space-8) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cta__form input {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: #FFFFFF;
  border: 1px solid rgba(15,23,42,0.1);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--fz-base);
  font-family: var(--font-body);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.cta__form input:focus {
  border-color: var(--cyan-500);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
  outline: none;
}

.cta__form input::placeholder {
  color: var(--text-muted);
}

/* ─── Footer ─── */
.footer {
  background: var(--bg-void);
  border-top: var(--border-subtle);
  padding: var(--space-10) 0 var(--space-8);
  position: relative;
  z-index: var(--z-content);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-8);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-size: var(--fz-xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-4);
}

.footer__brand-logo img {
  height: 32px;
  width: auto;
}

.footer__brand p {
  color: var(--text-muted);
  font-size: var(--fz-sm);
  max-width: 40ch;
}

.footer__col h4 {
  font-size: var(--fz-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

.footer__col a {
  display: block;
  color: var(--text-secondary);
  font-size: var(--fz-sm);
  padding: var(--space-1) 0;
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--cyan-500); }

.footer__bottom {
  border-top: var(--border-subtle);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  text-align: center;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.footer__bottom p {
  font-size: var(--fz-xs);
  color: var(--text-muted);
  margin: 0 auto;
}

/* Footer legal bar */
.footer__legal {
  display: flex;
  justify-content: center;
  gap: var(--space-5);
  padding-top: var(--space-5);
  margin-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.footer__legal a {
  font-size: var(--fz-xs);
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.footer__legal a:hover { color: var(--cyan-500); }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pipeline { grid-template-columns: repeat(2, 1fr); }
  .pipeline::before { display: none; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav__links, .nav__actions .btn, .nav__link--login { display: none; }
  .nav-toggle { display: flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr; }
  .kpi-strip { grid-template-columns: repeat(2, 1fr); }

  .hero__content h1 { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .hero__sub { font-size: var(--fz-base) !important; }
  .hero__actions { flex-direction: column; align-items: center; }

  .footer__inner { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer__bottom { text-align: center; }
  .footer__legal { flex-direction: column; align-items: center; gap: var(--space-2); }

  .announce-bar__inner { font-size: 0.7rem; }
}

@media (max-width: 480px) {
  .kpi-strip { grid-template-columns: 1fr; }
  .hero__trust { flex-direction: column; align-items: center; }
}

/* ─── RTL ─── */
[dir="rtl"] {
  .eyebrow::before { margin-left: var(--space-3); margin-right: 0; }
  .nav__links { flex-direction: row-reverse; }
  .footer__inner { direction: rtl; }
}