/* ============================================
   NewTech Academy - Corporate B2B Website
   Brand: Dark Navy + Blue + Cyan gradient
============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --navy: #0a1628;
  --navy-mid: #0f2040;
  --navy-light: #162847;
  --blue: #0d6efd;
  --blue-light: #1a7fff;
  --cyan: #00c8ff;
  --cyan-dim: #00a8d4;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gradient-main: linear-gradient(135deg, #0d6efd, #00c8ff);
  --gradient-dark: linear-gradient(135deg, #0a1628, #0f2040);
  --gradient-card: linear-gradient(135deg, rgba(13,110,253,0.1), rgba(0,200,255,0.1));
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.18);
  --shadow-blue: 0 4px 20px rgba(13,110,253,0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50px;
  --transition: all 0.3s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* --- Typography --- */
h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
p { color: var(--gray-700); line-height: 1.75; }

/* --- Utility Classes --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 60px 0; }
.text-center { text-align: center; }
.text-cyan { color: var(--cyan); }
.text-blue { color: var(--blue); }
.text-white { color: var(--white); }
.text-muted { color: var(--gray-500); }
.font-light { color: rgba(255,255,255,0.75); }

/* --- Gradient Text --- */
.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Section Header --- */
.section-header { margin-bottom: 48px; }
.section-header h2 { color: var(--navy); margin-bottom: 16px; }
.section-header p { color: var(--gray-600); font-size: 1.05rem; max-width: 720px; }
.section-header.centered { text-align: center; }
.section-header.centered p { margin: 0 auto; }
.section-tag {
  display: inline-block;
  background: rgba(13,110,253,0.1);
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  border: 1px solid rgba(13,110,253,0.2);
}
.section-divider {
  width: 60px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin-top: 16px;
}
.section-divider.centered { margin: 16px auto 0; }

/* ============================================
   HEADER / NAVIGATION
============================================ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
#site-header.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.05);
  transition: var(--transition);
}
.site-logo:hover .logo-img { filter: brightness(1.2); }
/* Keep text logo as fallback if image fails */
.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--gradient-main);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: white;
  letter-spacing: -0.5px;
  display: none;
}
.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  display: none;
}
.logo-text span { color: var(--cyan); }

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}
.nav-links a.active { color: var(--cyan); }

/* CTA Button */
.btn-cta-header {
  background: var(--gradient-main);
  color: white !important;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow: var(--shadow-blue);
}
.btn-cta-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(13,110,253,0.5);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(10,22,40,0.98);
  backdrop-filter: blur(12px);
  padding: 20px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  color: rgba(255,255,255,0.85);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: var(--transition);
}
.mobile-nav a:hover { background: rgba(255,255,255,0.07); color: white; }
.mobile-nav .btn-cta-header { text-align: center; margin-top: 8px; }

/* ============================================
   BUTTONS
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(13,110,253,0.5);
  color: white;
}
.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
  color: white;
}
.btn-outline-blue {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}
.btn-outline-blue:hover {
  background: var(--blue);
  color: white;
}
.btn-sm {
  padding: 9px 20px;
  font-size: 0.85rem;
}
.btn-lg {
  padding: 15px 36px;
  font-size: 1rem;
}

/* ============================================
   HERO SECTIONS
============================================ */
.hero {
  background: var(--gradient-dark);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(13,110,253,0.15) 0%, transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,200,255,0.08) 0%, transparent 65%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-content { }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,200,255,0.12);
  color: var(--cyan);
  border: 1px solid rgba(0,200,255,0.25);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}
.hero h1 {
  color: white;
  margin-bottom: 20px;
}
.hero h1 .highlight { color: var(--cyan); }
.hero-lead {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
}
.hero-meta-item .num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
}
.hero-meta-item .label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  margin-top: 2px;
}

/* Course hero specific */
.course-hero .hero-meta-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}
.course-hero .hero-meta-item i {
  color: var(--cyan);
  font-size: 1.1rem;
}

/* ============================================
   CONTACT FORM (Hero)
============================================ */
.hero-form-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.hero-form-card h3 {
  color: white;
  font-size: 1.25rem;
  margin-bottom: 8px;
}
.hero-form-card p {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  margin-bottom: 24px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 6px;
}
.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: white;
  font-size: 0.92rem;
  font-family: var(--font);
  transition: var(--transition);
  outline: none;
}
.form-group input::placeholder { color: rgba(255,255,255,0.35); }
.form-group input:focus {
  border-color: var(--cyan);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(0,200,255,0.12);
}
.form-submit-btn {
  width: 100%;
  padding: 14px;
  background: var(--gradient-main);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  margin-top: 4px;
}
.form-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(13,110,253,0.5);
}
.form-privacy {
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-top: 12px;
}

/* Mid-page contact form (light bg) */
.contact-section {
  background: var(--gray-100);
  padding: 80px 0;
}
.contact-section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.contact-text h2 { color: var(--navy); margin-bottom: 16px; }
.contact-text p { color: var(--gray-600); margin-bottom: 24px; }
.contact-light-form {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-light-form .form-group label { color: var(--gray-700); }
.contact-light-form .form-group input {
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  color: var(--gray-800);
}
.contact-light-form .form-group input::placeholder { color: var(--gray-500); }
.contact-light-form .form-group input:focus {
  background: white;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(13,110,253,0.1);
}

/* ============================================
   CARDS
============================================ */
/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.category-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transition: var(--transition);
}
.category-card:hover::before { transform: scaleX(1); }
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,110,253,0.2);
}
.category-card .card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  border: 1px solid rgba(13,110,253,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--blue);
}
.category-card h3 { color: var(--navy); margin-bottom: 12px; }
.category-card p { font-size: 0.92rem; margin-bottom: 24px; }
.category-card .card-link {
  color: var(--blue);
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.category-card .card-link:hover { gap: 10px; }

/* Course Cards */
.course-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.course-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
}
.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,110,253,0.25);
}
.course-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}
.course-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(0,200,255,0.1);
  color: var(--cyan-dim);
  border: 1px solid rgba(0,200,255,0.2);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.course-card h3 { color: var(--navy); margin-bottom: 10px; font-size: 1.15rem; }
.course-card p { font-size: 0.9rem; margin-bottom: 20px; }

/* Benefit Cards */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.benefit-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
}
.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.benefit-card .benefit-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.benefit-card h4 { color: var(--navy); margin-bottom: 8px; }
.benefit-card p { font-size: 0.88rem; }

/* Audience Items */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.audience-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: var(--transition);
}
.audience-item:hover {
  background: white;
  box-shadow: var(--shadow-sm);
  border-color: rgba(13,110,253,0.2);
}
.audience-icon {
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--gradient-card);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.audience-item span {
  font-weight: 500;
  color: var(--navy);
  font-size: 0.92rem;
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-card .feature-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}
.feature-card h4 { color: var(--navy); margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; }

/* Skill Cards */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.skill-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}
.skill-card:hover { background: white; box-shadow: var(--shadow-sm); }
.skill-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: white;
  flex-shrink: 0;
}
.skill-card h4 { color: var(--navy); margin-bottom: 4px; font-size: 0.95rem; }
.skill-card p { font-size: 0.84rem; }

/* ============================================
   CYBER COURSE CARDS
============================================ */
.level-section { margin-bottom: 56px; }
.level-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--gray-200);
}
.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}
.badge-beginner { background: #d1fae5; color: #065f46; }
.badge-intermediate { background: #fef3c7; color: #92400e; }
.badge-advanced { background: #fee2e2; color: #991b1b; }
.level-header h3 { color: var(--navy); font-size: 1.3rem; }

.cyber-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.cyber-card {
  display: flex;
  gap: 16px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}
.cyber-card:hover {
  border-color: rgba(13,110,253,0.2);
  box-shadow: var(--shadow-sm);
}
.cyber-num {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: white;
  flex-shrink: 0;
}
.cyber-info { flex: 1; }
.cyber-info h4 { color: var(--navy); margin-bottom: 6px; font-size: 0.95rem; }
.cyber-info p { font-size: 0.84rem; margin-bottom: 8px; }
.cyber-hours {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue);
  background: rgba(13,110,253,0.08);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

/* ============================================
   SYLLABUS ACCORDION
============================================ */
.syllabus-section { }
.accordion { border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--gray-200); }
.accordion-item:last-child { border-bottom: none; }
.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  background: white;
  transition: var(--transition);
  user-select: none;
}
.accordion-header:hover { background: var(--gray-100); }
.accordion-header.open { background: rgba(13,110,253,0.04); }
.accordion-header h4 {
  color: var(--navy);
  font-size: 0.95rem;
  flex: 1;
  padding-right: 12px;
}
.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--gray-600);
  font-size: 0.75rem;
}
.accordion-header.open .accordion-icon {
  background: var(--gradient-main);
  color: white;
  transform: rotate(45deg);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.accordion-body.open { max-height: 600px; }
.accordion-content {
  padding: 0 24px 24px;
  background: rgba(13,110,253,0.02);
}
.accordion-content ul {
  list-style: none;
  margin-top: 12px;
}
.accordion-content ul li {
  padding: 6px 0;
  font-size: 0.88rem;
  color: var(--gray-600);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.accordion-content ul li::before {
  content: '▸';
  color: var(--blue);
  flex-shrink: 0;
  margin-top: 1px;
}
.accordion-hours {
  font-size: 0.78rem;
  color: var(--blue);
  font-weight: 600;
  background: rgba(13,110,253,0.1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-right: 8px;
}

/* ============================================
   CTA / TIBERIU SECTION
============================================ */
.tiberiu-section {
  background: var(--gray-100);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.tiberiu-section::before {
  content: '';
  position: absolute;
  right: -15%;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(13,110,253,0.06) 0%, transparent 65%);
}
.tiberiu-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.tiberiu-text h2 { color: var(--navy); margin-bottom: 16px; }
.tiberiu-text p { color: var(--gray-600); margin-bottom: 28px; }
.tiberiu-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.tiberiu-profile {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.tiberiu-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
  border: 3px solid rgba(0,200,255,0.3);
}
.tiberiu-name { font-size: 1.1rem; font-weight: 700; color: var(--navy); }
.tiberiu-title { font-size: 0.82rem; color: var(--gray-500); margin-top: 2px; }
.tiberiu-bio {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 24px;
}
.tiberiu-contacts { display: flex; flex-direction: column; gap: 10px; }
.tiberiu-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-700);
  font-size: 0.9rem;
}
.tiberiu-contact-item i {
  color: var(--blue);
  width: 18px;
  text-align: center;
}
.tiberiu-contact-item a {
  color: var(--blue);
  font-weight: 500;
}
.tiberiu-contact-item a:hover { text-decoration: underline; }

/* ============================================
   SECTIONS - GENERAL
============================================ */
.bg-white { background: white; }
.bg-light { background: var(--gray-100); }
.bg-navy { background: var(--navy); }
.bg-navy-mid { background: var(--navy-mid); }

/* Advisory / Companies placeholder */
.placeholder-section {
  background: var(--gray-100);
  padding: 60px 0;
  text-align: center;
}
.placeholder-section .section-header h2 { color: var(--navy); }
.placeholder-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}
.placeholder-logo {
  width: 140px;
  height: 60px;
  background: var(--gray-200);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 0.78rem;
  font-weight: 500;
}
.advisory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.advisory-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}
.advisory-avatar {
  width: 70px;
  height: 70px;
  background: var(--gradient-card);
  border-radius: 50%;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--blue);
}
.advisory-card h4 { color: var(--navy); font-size: 0.95rem; margin-bottom: 4px; }
.advisory-card p { font-size: 0.8rem; color: var(--gray-500); }

/* ============================================
   FOOTER
============================================ */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo-text { margin-bottom: 14px; display: block; }
.footer-brand p { font-size: 0.86rem; line-height: 1.7; max-width: 260px; }
.footer-col h5 {
  color: white;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  font-size: 0.86rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
  cursor: pointer;
}
.footer-col ul li a:hover { color: var(--cyan); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.82rem; }
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}
.footer-bottom-links a:hover { color: var(--cyan); }
.powered-by {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}
.powered-by span { color: var(--cyan); font-weight: 600; }

/* ============================================
   ICON BENEFIT SECTIONS
   Dark version (AI page) + Light version (Data page)
============================================ */

/* --- DARK version (AI page) --- */
.icon-benefits-dark {
  background: #0d1e35;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.icon-benefits-dark::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 60% 50%, rgba(13,110,253,0.12) 0%, transparent 65%);
  pointer-events: none;
}
.icon-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
  position: relative;
  z-index: 1;
}
.icon-benefit-item {
  text-align: center;
  padding: 12px;
}
.icon-benefit-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-benefit-icon svg {
  width: 64px;
  height: 64px;
}
.icon-benefit-item h4 {
  color: var(--cyan);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.35;
}
.icon-benefit-item p {
  color: rgba(255,255,255,0.7);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* --- LIGHT version (Data Analysis page) --- */
.icon-benefits-light {
  background: white;
  padding: 80px 0;
}
.icon-benefits-grid-light {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
}
.icon-benefit-item-light {
  text-align: center;
  padding: 12px;
}
.icon-benefit-icon-light {
  width: 72px;
  height: 72px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-benefit-icon-light svg {
  width: 64px;
  height: 64px;
}
.icon-benefit-item-light h4 {
  color: var(--navy);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.35;
}
.icon-benefit-item-light p {
  color: var(--gray-600);
  font-size: 0.86rem;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .icon-benefits-grid,
  .icon-benefits-grid-light { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .icon-benefits-grid,
  .icon-benefits-grid-light { grid-template-columns: 1fr; gap: 28px; }
}
.page-section {
  display: none;
  animation: fadeInPage 0.4s ease;
}
.page-section.active { display: block; }
@keyframes fadeInPage {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   TOAST / NOTIFICATION
============================================ */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: white;
  border-radius: var(--radius-md);
  padding: 16px 24px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
  border-left: 4px solid var(--blue);
  min-width: 280px;
  max-width: 380px;
  color: var(--gray-800);
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast i { color: var(--blue); font-size: 1.2rem; flex-shrink: 0; }

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr 380px; gap: 40px; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-grid .footer-col:last-child { grid-column: 1 / -1; }
  .advisory-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-form-card { max-width: 500px; margin: 0 auto; }
  .category-grid { grid-template-columns: 1fr; }
  .course-grid { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .skill-grid { grid-template-columns: 1fr; }
  .tiberiu-inner { grid-template-columns: 1fr; }
  .tiberiu-text { order: 2; }
  .tiberiu-card { order: 1; }
  .contact-section-inner { grid-template-columns: 1fr; }
  .cyber-grid { grid-template-columns: 1fr; }
  .advisory-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .btn-cta-header { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 110px 0 60px; }
  .section-pad { padding: 60px 0; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .benefit-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .advisory-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-form-card { padding: 24px; }
  .advisory-grid { grid-template-columns: 1fr 1fr; }
}