/* ═══════════════════════════════════════════════════════════════ */
/* STYLES PARTAGÉS - SKOLIO                                        */
/* ═══════════════════════════════════════════════════════════════ */

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

:root {
  --blue:      #1E73BE;
  --blue-d:    #155a96;
  --blue-l:    #e8f2fb;
  --green:     #3BB273;
  --green-d:   #2d8f5c;
  --green-l:   #eaf7f0;
  --orange:    #E67E22;
  --purple:    #9B59B6;
  --dark:      #1a1a1a;
  --mid:       #6b7280;
  --light:     #f5f7fa;
  --white:     #FFFFFF;
  --shadow:    0 8px 32px rgba(30,115,190,.12);
  --shadow-lg: 0 16px 48px rgba(30,115,190,.16);
  --radius:    16px;
  --font:      'Sora', sans-serif;
  --body:      'DM Sans', sans-serif;
  --trans:     .3s cubic-bezier(.4, 0, .2, 1);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── TYPOGRAPHY ───────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 { font-family: var(--font); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }
p { line-height: 1.75; }

a { text-decoration: none; color: inherit; transition: color var(--trans); }
img { max-width: 100%; display: block; }

/* ── UTILITIES ─────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { padding: 100px 24px; }

.badge {
  display: inline-block;
  background: var(--blue-l);
  color: var(--blue);
  font-family: var(--font);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
}
.badge.green { background: var(--green-l); color: var(--green-d); }
.badge.orange { background: #fef3e5; color: var(--orange); }

/* ── NAVBAR ───────────────────────────────────────────────────── */
#navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, .98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e8edf3;
  padding: 0 24px;
  transition: all var(--trans);
}
#navbar.scrolled { box-shadow: 0 4px 20px rgba(30, 115, 190, .1); }

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--blue);
  text-decoration: none;
}
.nav-logo .dot { 
  color: var(--green);
  margin-left: -6px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--blue), var(--green));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
}
.nav-links a {
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 500;
  color: var(--mid);
  padding: 10px 16px;
  border-radius: 10px;
  transition: all var(--trans);
}
.nav-links a:hover {
  background: var(--blue-l);
  color: var(--blue);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav {
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: white;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all var(--trans);
  box-shadow: 0 4px 16px rgba(30, 115, 190, .25);
}
.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(30, 115, 190, .35);
}

.btn-nav-desktop {
  display: block;
}

.btn-nav-mobile {
  display: none;
  width: 100%;
  text-align: left;
  padding: 12px 0;
  background: none;
  color: var(--dark);
  box-shadow: none;
}

/* ── BURGER MENU ──────────────────────────────────────────────── */
.burger-menu {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
}

.burger-menu span {
  width: 24px;
  height: 2.5px;
  background: var(--dark);
  border-radius: 2px;
  transition: all .3s ease;
  display: block;
}

.burger-menu.active span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

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

.burger-menu.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* ── BUTTONS ──────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: white;
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all var(--trans);
  box-shadow: 0 6px 20px rgba(30, 115, 190, .3);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(30, 115, 190, .4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: var(--blue);
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 12px;
  border: 2px solid var(--blue-l);
  cursor: pointer;
  transition: all var(--trans);
}
.btn-secondary:hover {
  border-color: var(--blue);
  background: var(--blue-l);
  transform: translateY(-2px);
}

/* ── ANIMATIONS ───────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── FOOTER ───────────────────────────────────────────────────── */
footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
  padding: 60px 24px 30px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand .logo-text {
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 14px;
}
.footer-brand .logo-text span { color: var(--green); }

.footer-brand p { font-size: .88rem; line-height: 1.7; max-width: 300px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  transition: all var(--trans);
  border: none;
  cursor: pointer;
  color: white;
}
.social-btn:hover { background: var(--blue); transform: translateY(-2px); }

.footer-col h4 {
  font-family: var(--font);
  font-size: .85rem;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
  font-size: .85rem;
  color: rgba(255, 255, 255, .65);
  transition: color var(--trans);
}
.footer-col ul li a:hover { color: var(--green); }

.footer-contact { font-size: .85rem; }
.footer-contact p { margin-bottom: 12px; }

.footer-bottom {
  max-width: 1200px;
  margin: 30px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: .8rem;
}

.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: .8rem; color: rgba(255, 255, 255, .5); }
.footer-links a:hover { color: var(--green); }

/* ── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .container { max-width: 100%; }
  section { padding: 80px 20px; }
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 70px 24px; }
  .nav-inner { height: auto; padding: 12px 0; }
  .nav-links { gap: 12px; }
  h3 { font-size: 1.2rem; }
}

@media (max-width: 768px) {
  h1 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
  h2 { font-size: clamp(1.4rem, 3.5vw, 2rem); }
  h3 { font-size: 1.1rem; }
  p { font-size: .9rem; }
  section { padding: 60px 16px; }
  .container { padding: 0 16px; }
  .btn-nav { padding: 10px 16px; font-size: .85rem; }
}

@media (max-width: 680px) {
  .nav-links { 
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    gap: 0;
    list-style: none;
    padding: 16px 24px;
    border-bottom: 1px solid #e8edf3;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
    z-index: 800;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
  }

  .nav-links li:last-child {
    border-bottom: none;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
  }

  .btn-nav-desktop {
    display: none;
  }

  .btn-nav-mobile {
    display: block !important;
    background: linear-gradient(135deg, var(--blue), var(--green)) !important;
    color: white !important;
    border-radius: 8px;
    padding: 12px 20px !important;
    box-shadow: 0 2px 8px rgba(30, 115, 190, .2) !important;
  }

  .burger-menu { display: flex; }
  
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 50px 16px; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1rem; }
  .badge { font-size: .7rem; padding: 6px 14px; }
  .btn-primary, .btn-secondary { padding: 10px 16px; font-size: .85rem; }
  .nav-logo { font-size: 1.3rem; }
  .logo-icon { width: 36px; height: 36px; font-size: 1.2rem; }
  .dot { display: none; }
}