/*
Theme Name: Objectif Group
Theme URI: https://objectif-group.com
Author: Objectif Group
Description: Thème professionnel pour Objectif Group - Tech IT & Formation
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: objectif-group
*/

/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --primary:     #034764;
  --secondary:   #199edc;
  --white:       #ffffff;
  --light:       #f4f8fb;
  --gray:        #6b7c93;
  --dark:        #0a1628;
  --border:      #dde6ef;
  --font-heading: 'Sora', sans-serif;
  --font-body:    'Inter', sans-serif;
  --radius:      10px;
  --shadow:      0 4px 24px rgba(3,71,100,0.10);
  --shadow-lg:   0 12px 48px rgba(3,71,100,0.16);
  --transition:  0.28s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul { list-style: none; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--primary);
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p { margin-bottom: 1rem; }

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }
.text-center { text-align: center; }
.text-white { color: var(--white) !important; }

.badge {
  display: inline-block;
  background: rgba(25,158,220,0.12);
  color: var(--secondary);
  border: 1px solid rgba(25,158,220,0.25);
  border-radius: 100px;
  padding: 5px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header {
  margin-bottom: 56px;
}
.section-header p {
  max-width: 600px;
  color: var(--gray);
  font-size: 1.05rem;
  margin: 0 auto;
}
.section-header.text-center p { margin: 0 auto; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--secondary);
  color: var(--white);
}
.btn-primary:hover {
  background: #1186bf;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(25,158,220,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
}

/* ============================================================
   HEADER & NAV
   ============================================================ */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: all var(--transition);
}
#site-header.scrolled {
  background: var(--white);
  box-shadow: 0 2px 20px rgba(3,71,100,0.10);
}
#site-header.scrolled .nav-link { color: var(--primary); }
#site-header.scrolled .logo-text { color: var(--primary); }
#site-header.scrolled .logo-accent { color: var(--secondary); }
#site-header.scrolled .btn-nav {
  background: var(--secondary);
  color: var(--white);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 42px; height: 42px;
  background: var(--secondary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 24px; height: 24px; fill: white; }
.logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo-accent { color: var(--secondary); }

.site-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  border-radius: 6px;
  transition: all var(--transition);
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,0.12); }
.btn-nav {
  margin-left: 12px;
  padding: 10px 22px;
  background: var(--white);
  color: var(--primary);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  transition: all var(--transition);
}
.btn-nav:hover {
  background: var(--secondary);
  color: var(--white);
  transform: translateY(-1px);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: all var(--transition); }
#site-header.scrolled .nav-toggle span { background: var(--primary); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary) 0%, #05679a 55%, #0a8cc7 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-blob {
  position: absolute;
  right: -120px; top: -80px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(25,158,220,0.3) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-blob-2 {
  position: absolute;
  left: -80px; bottom: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.hero-badge .dot { width: 8px; height: 8px; background: #4eff91; border-radius: 50%; animation: pulse 2s infinite; }

@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.6; transform:scale(1.3); } }

.hero h1 {
  color: var(--white);
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
}
.hero h1 span { color: var(--secondary); position: relative; }
.hero-desc {
  color: rgba(255,255,255,0.78);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.stat-item {}
.stat-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  line-height: 1;
}
.stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
}
.hero-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 20px;
  padding: 28px;
  color: white;
}
.hero-card-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  font-weight: 600;
  margin-bottom: 12px;
}
.hero-card h4 { color: white; font-size: 1.1rem; margin-bottom: 8px; }
.hero-card p { color: rgba(255,255,255,0.7); font-size: 0.88rem; margin: 0; }
.hero-card-mini {
  position: absolute;
  bottom: -20px; right: -20px;
  background: var(--white);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
}
.mini-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.mini-text strong { display: block; font-size: 0.9rem; color: var(--primary); font-family: var(--font-heading); }
.mini-text span { font-size: 0.78rem; color: var(--gray); }

/* ============================================================
   SERVICES
   ============================================================ */
.services-section { background: var(--light); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(25,158,220,0.25);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(3,71,100,0.08), rgba(25,158,220,0.1));
}
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--primary); }
.service-card p { color: var(--gray); font-size: 0.92rem; margin: 0 0 20px; }
.service-link {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.service-link:hover { gap: 10px; color: var(--primary); }

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image-wrap {
  position: relative;
}
.about-image-bg {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}
.about-image-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M20 20.5V18H0v5h5v5H0v5h20v-9.5zm-2 4.5h-6v-4h6v4zm-6 4h-4v-4h4v4zm2-8h-2V14h2v7zm4 0h-2V10h2v11zm4 0h-2v-7h2v7z'/%3E%3C/g%3E%3C/svg%3E");
}
.about-float-card {
  position: absolute;
  bottom: -24px; right: -24px;
  background: var(--white);
  border-radius: 16px;
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.about-float-card .num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.about-float-card .lbl { font-size: 0.82rem; color: var(--gray); margin-top: 4px; }

.about-text .badge { margin-bottom: 20px; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--gray); margin-bottom: 20px; }

.about-features { margin: 28px 0; display: flex; flex-direction: column; gap: 14px; }
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.feat-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 0.9rem;
}
.feat-text strong { display: block; font-size: 0.95rem; color: var(--primary); margin-bottom: 2px; }
.feat-text span { font-size: 0.85rem; color: var(--gray); }

/* ============================================================
   FORMATIONS
   ============================================================ */
.formations-section { background: var(--primary); }
.formations-section .section-header h2 { color: var(--white); }
.formations-section .section-header p { color: rgba(255,255,255,0.65); }
.formations-section .badge {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.2);
}

.formations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.formation-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 28px 22px;
  color: white;
  transition: all var(--transition);
  cursor: pointer;
}
.formation-card:hover {
  background: rgba(255,255,255,0.13);
  border-color: var(--secondary);
  transform: translateY(-4px);
}
.formation-icon { font-size: 2rem; margin-bottom: 14px; }
.formation-card h4 { color: white; font-size: 1rem; margin-bottom: 8px; }
.formation-card p { color: rgba(255,255,255,0.6); font-size: 0.85rem; margin: 0 0 16px; }
.formation-level {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(25,158,220,0.25);
  color: var(--secondary);
  border: 1px solid rgba(25,158,220,0.3);
}
.formations-cta { text-align: center; }

/* ============================================================
   BLOG / ACTUALITÉS
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}
.blog-card {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  background: var(--white);
  transition: all var(--transition);
}
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.blog-thumb {
  height: 200px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.blog-cat {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--white);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.blog-body { padding: 24px; }
.blog-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 12px;
}
.blog-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.blog-card h3 a:hover { color: var(--secondary); }
.blog-card p { color: var(--gray); font-size: 0.88rem; margin: 0 0 16px; }
.read-more {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap var(--transition);
}
.read-more:hover { gap: 9px; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-section { background: var(--light); }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.testimonial-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.stars { color: #f59e0b; font-size: 1rem; margin-bottom: 16px; }
.testimonial-card blockquote {
  color: var(--dark);
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 20px;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 1rem;
  font-family: var(--font-heading);
}
.author-info strong { display: block; font-size: 0.9rem; color: var(--primary); }
.author-info span { font-size: 0.8rem; color: var(--gray); }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, var(--secondary), #0a8cc7);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='10'/%3E%3C/g%3E%3C/svg%3E");
}
.cta-band h2 { color: var(--white); margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,0.8); max-width: 540px; margin: 0 auto 32px; font-size: 1.05rem; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; position: relative; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 { margin-bottom: 16px; }
.contact-info p { color: var(--gray); margin-bottom: 32px; }
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.ci-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: white;
}
.ci-text strong { display: block; font-size: 0.88rem; color: var(--gray); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px; }
.ci-text span { color: var(--primary); font-weight: 500; }

.contact-form {
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--secondary); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { color: var(--white); font-size: 1.3rem; }
.footer-brand p { margin: 16px 0 24px; font-size: 0.88rem; line-height: 1.7; }
.footer-social { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.social-link:hover { background: var(--secondary); border-color: var(--secondary); color: white; }

.footer-col h5 { color: var(--white); font-size: 0.95rem; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.88rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--secondary); }

.footer-newsletter p { font-size: 0.88rem; margin-bottom: 16px; }
.newsletter-form { display: flex; gap: 0; }
.newsletter-form input {
  flex: 1;
  padding: 11px 16px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-right: none;
  border-radius: 8px 0 0 8px;
  color: white;
  font-size: 0.88rem;
  outline: none;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,0.35); }
.newsletter-form button {
  padding: 11px 18px;
  background: var(--secondary);
  border: none;
  border-radius: 0 8px 8px 0;
  color: white;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--transition);
}
.newsletter-form button:hover { background: #1186bf; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}
.footer-bottom a:hover { color: var(--secondary); }

/* ============================================================
   SCROLL TO TOP
   ============================================================ */
.scroll-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--secondary);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(25,158,220,0.4);
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--transition);
  z-index: 999;
}
.scroll-top.visible { opacity: 1; transform: translateY(0); }
.scroll-top:hover { background: var(--primary); transform: translateY(-2px); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .site-nav { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--primary); flex-direction: column; justify-content: center;
    align-items: center; gap: 12px; z-index: 999; }
  .site-nav.open { display: flex; }
  .nav-link { font-size: 1.1rem; color: white; }
  .btn-nav { background: var(--secondary); color: white; margin: 0; }
  .nav-toggle { display: flex; z-index: 1000; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}