/* ===== AIHub - Premium AI Company Website ===== */
/* Apple-style font stack: SF Pro Display for headings, SF Pro Text for body */

:root {
  --bg-primary: #0A0E1A;
  --bg-secondary: #0F1629;
  --bg-card: rgba(15, 22, 41, 0.7);
  --bg-glass: rgba(255,255,255,0.04);
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255,255,255,0.7);
  --text-muted: rgba(255,255,255,0.45);
  --accent-blue: #00D4FF;
  --accent-violet: #7B2FFF;
  --accent-cyan: #00F0FF;
  --accent-green: #00E89D;
  --gradient-main: linear-gradient(135deg, #00D4FF 0%, #7B2FFF 100%);
  --gradient-card: linear-gradient(135deg, rgba(0,212,255,0.1) 0%, rgba(123,47,255,0.1) 100%);
  --border-subtle: rgba(255,255,255,0.08);
  --border-glow: rgba(0,212,255,0.3);
  --shadow-glow: 0 0 30px rgba(0,212,255,0.15);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; }

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== Animated Background Particles ===== */
.bg-particles {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.bg-particles .particle {
  position: absolute; border-radius: 50%; background: var(--accent-blue);
  opacity: 0.15; animation: floatParticle 20s infinite ease-in-out;
}
@keyframes floatParticle {
  0%, 100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-80px) translateX(40px); }
  50% { transform: translateY(-30px) translateX(-50px); }
  75% { transform: translateY(-100px) translateX(20px); }
}

/* ===== HEADER / NAV ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0;
  background: rgba(10,14,26,0.8);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}
.header.scrolled { padding: 10px 0; background: rgba(10,14,26,0.95); }
.header .container { display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 42px; width: 42px; border-radius: 10px; }
.logo-text { font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 700; font-size: 1.5rem; letter-spacing: -0.01em; }
.logo-text .ai { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition); position: relative;
}
.nav-links a:hover { color: var(--accent-blue); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--gradient-main); transition: var(--transition); border-radius: 2px;
}
.nav-links a:hover::after { width: 100%; }

.lang-switch {
  display: flex; align-items: center; gap: 4px;
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  border-radius: 30px; padding: 4px; cursor: pointer;
}
.lang-btn {
  padding: 6px 14px; border-radius: 20px; border: none;
  background: transparent; color: var(--text-secondary);
  font-size: 0.8rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
}
.lang-btn.active {
  background: var(--gradient-main); color: #fff;
}

.btn-cta {
  padding: 10px 24px; border-radius: 30px; border: none;
  background: var(--gradient-main); color: #fff;
  font-weight: 600; font-size: 0.9rem; cursor: pointer;
  transition: var(--transition); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  position: relative; overflow: hidden;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }

.btn-outline {
  padding: 10px 24px; border-radius: 30px;
  border: 1px solid var(--border-glow);
  background: transparent; color: var(--accent-blue);
  font-weight: 600; font-size: 0.9rem; cursor: pointer;
  transition: var(--transition); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
}
.btn-outline:hover { background: rgba(0,212,255,0.1); transform: translateY(-2px); }

.mobile-toggle { display: none; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; padding-top: 100px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover; opacity: 0.4;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,14,26,0.3) 0%, var(--bg-primary) 100%);
}
.hero .container { position: relative; z-index: 1; display: flex; align-items: center; gap: 60px; }
.hero-content { flex: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 30px;
  background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2);
  font-size: 0.85rem; color: var(--accent-blue); font-weight: 500;
  margin-bottom: 24px; animation: fadeInUp 0.6s ease;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 { font-size: 3.8rem; margin-bottom: 20px; animation: fadeInUp 0.6s ease 0.1s both; font-weight: 600; letter-spacing: -0.03em; }
.hero h1 .gradient { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.hero p { font-size: 1.15rem; color: var(--text-secondary); max-width: 540px; margin-bottom: 36px; animation: fadeInUp 0.6s ease 0.2s both; }
.hero-btns { display: flex; gap: 16px; animation: fadeInUp 0.6s ease 0.3s both; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== STATS BAR ===== */
.stats-bar {
  padding: 40px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative; z-index: 1;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 20px; }
.stat-number {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif; font-size: 2.8rem; font-weight: 700;
  background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 8px; letter-spacing: -0.02em;
}
.stat-label { font-size: 0.9rem; color: var(--text-secondary); }

/* ===== SECTION COMMON ===== */
section { position: relative; z-index: 1; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
  background: rgba(123,47,255,0.15); color: var(--accent-violet);
  border: 1px solid rgba(123,47,255,0.25); margin-bottom: 16px;
  text-transform: uppercase; letter-spacing: 1px;
}
.section-header h2 { font-size: 2.6rem; margin-bottom: 16px; font-weight: 600; letter-spacing: -0.025em; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; }

/* ===== SERVICES ===== */
.services { padding: 100px 0; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}
.service-card-img { width: 100%; height: 200px; overflow: hidden; }
.service-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.service-card:hover .service-card-img img { transform: scale(1.05); }
.service-card-body { padding: 28px; }
.service-icon {
  width: 50px; height: 50px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-card); border: 1px solid var(--border-glow);
  margin-bottom: 16px; color: var(--accent-blue);
}
.service-card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.service-card p { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 18px; }
.service-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent-blue); font-weight: 600; font-size: 0.9rem;
  transition: var(--transition);
}
.service-link:hover { gap: 10px; }

/* ===== AI EFFICIENCY ===== */
.efficiency { padding: 100px 0; }
.efficiency-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.efficiency-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 36px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.efficiency-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-main); opacity: 0; transition: var(--transition);
}
.efficiency-card:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.efficiency-card:hover::before { opacity: 1; }
.eff-icon { margin-bottom: 16px; display: flex; align-items: center; }
.eff-thumb { width: 100%; height: 120px; border-radius: 10px; overflow: hidden; margin-bottom: 16px; }
.eff-thumb img { width: 100%; height: 100%; object-fit: cover; }
.eff-stat {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif; font-size: 2rem; font-weight: 700;
  background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.efficiency-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.efficiency-card p { font-size: 0.88rem; color: var(--text-secondary); }

/* ===== TEAM / ABOUT ===== */
.about { padding: 100px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-subtle); }
.about-img img { width: 100%; }
.about-content h2 { font-size: 2.4rem; margin-bottom: 20px; }
.about-content p { color: var(--text-secondary); margin-bottom: 20px; font-size: 1rem; }
.about-features { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.about-feature {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 18px; border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
}
.about-feature .icon { font-size: 1.3rem; }
.about-feature span { font-size: 0.92rem; font-weight: 500; }

/* ===== COURSES ===== */
.courses { padding: 100px 0; background: var(--bg-secondary); }
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.course-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 32px;
  transition: var(--transition);
}
.course-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.course-emoji { font-size: 2.5rem; margin-bottom: 16px; }
.course-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.course-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; }
.course-meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text-muted); }

/* ===== AI TOOLS ===== */
.tools { padding: 100px 0; }
.tools-scroll { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 20px; scroll-snap-type: x mandatory; }
.tools-scroll::-webkit-scrollbar { height: 4px; }
.tools-scroll::-webkit-scrollbar-track { background: var(--bg-secondary); border-radius: 4px; }
.tools-scroll::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 4px; }
.tool-card {
  min-width: 260px; scroll-snap-align: start;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition); flex-shrink: 0;
}
.tool-card:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.tool-icon { font-size: 2rem; margin-bottom: 14px; }
.tool-card h4 { font-size: 1rem; margin-bottom: 8px; }
.tool-card p { font-size: 0.85rem; color: var(--text-secondary); }

/* ===== PARTNERS ===== */
.partners { padding: 100px 0; background: var(--bg-secondary); }
.partners-map { margin-bottom: 50px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-subtle); }
.partners-map img { width: 100%; }
.awards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 50px; }
.award-card {
  text-align: center; padding: 28px 20px;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); transition: var(--transition);
}
.award-card:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.award-icon { margin-bottom: 12px; display: flex; align-items: center; justify-content: center; }
.award-photo { width: 100%; height: 140px; border-radius: 10px; overflow: hidden; margin-bottom: 14px; }
.award-photo img { width: 100%; height: 100%; object-fit: cover; }
.award-card h4 { font-size: 0.95rem; margin-bottom: 6px; }
.award-card p { font-size: 0.8rem; color: var(--text-muted); }

/* ===== TESTIMONIALS ===== */
.testimonials { padding: 100px 0; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.testimonial-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 32px;
  transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--border-glow); }
.testimonial-stars { color: #FFD700; margin-bottom: 16px; font-size: 1rem; }
.testimonial-card blockquote { font-size: 0.95rem; color: var(--text-secondary); font-style: italic; margin-bottom: 20px; line-height: 1.7; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--gradient-main); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem;
}
.testimonial-info h4 { font-size: 0.9rem; }
.testimonial-info p { font-size: 0.8rem; color: var(--text-muted); }

/* ===== CTA SECTION ===== */
.cta-section {
  padding: 100px 0; text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}
.cta-box {
  max-width: 800px; margin: 0 auto; padding: 60px;
  background: var(--gradient-card); border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg); position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; inset: -2px;
  background: var(--gradient-main); border-radius: var(--radius-lg);
  z-index: -1; opacity: 0.15;
}
.cta-box h2 { font-size: 2.4rem; margin-bottom: 16px; }
.cta-box p { color: var(--text-secondary); margin-bottom: 32px; font-size: 1.05rem; }
.cta-btns { display: flex; justify-content: center; gap: 16px; }

/* ===== FOOTER ===== */
.footer {
  padding: 60px 0 30px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 16px; max-width: 300px; }
.footer-col h4 {
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--text-muted); margin-bottom: 20px;
}
.footer-col a { display: block; color: var(--text-secondary); font-size: 0.9rem; padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--accent-blue); padding-left: 6px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; transition: var(--transition);
}
.footer-social a:hover { background: var(--gradient-main); border-color: transparent; }
.footer-bottom {
  padding-top: 30px; border-top: 1px solid var(--border-subtle);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--text-muted);
}

/* ===== SCROLL REVEAL ===== */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== PRICING ===== */
.pricing { padding: 100px 0; background: var(--bg-secondary); }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.pricing-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 36px 28px;
  transition: var(--transition); display: flex; flex-direction: column;
  position: relative;
}
.pricing-card:hover { border-color: var(--border-glow); transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.pricing-card.featured {
  border-color: var(--accent-blue);
  background: linear-gradient(180deg, rgba(0,212,255,0.08) 0%, var(--bg-card) 100%);
}
.pricing-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gradient-main); color: #fff; padding: 4px 16px;
  border-radius: 20px; font-size: 0.75rem; font-weight: 700; white-space: nowrap;
}
.pricing-header { text-align: center; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border-subtle); }
.pricing-header h3 { font-size: 1.3rem; margin-bottom: 12px; }
.pricing-price { display: flex; align-items: baseline; justify-content: center; gap: 4px; }
.price-amount {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif; font-size: 2.8rem; font-weight: 700; letter-spacing: -0.02em;
  background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.price-period { font-size: 0.9rem; color: var(--text-muted); }
.pricing-for { font-size: 0.85rem; color: var(--text-secondary); margin-top: 8px; }
.pricing-features { flex: 1; margin-bottom: 24px; }
.pricing-features li {
  padding: 8px 0; font-size: 0.88rem; color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.pricing-btn { width: 100%; text-align: center; display: block; }

/* ===== CONTACT ===== */
.contact-section { padding: 100px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition);
}
.contact-card:hover { border-color: var(--border-glow); }
.contact-icon { margin-bottom: 12px; display: flex; align-items: center; justify-content: center; }
.contact-card h4 { font-size: 1.1rem; margin-bottom: 12px; }
.contact-link {
  display: block; color: var(--accent-blue); font-size: 0.95rem;
  padding: 4px 0; transition: var(--transition);
}
.contact-link:hover { color: var(--accent-cyan); }
.contact-form-wrap {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 36px;
}
.contact-form-wrap h3 { font-size: 1.4rem; margin-bottom: 24px; }
.contact-form-wrap form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form-wrap input,
.contact-form-wrap select,
.contact-form-wrap textarea {
  width: 100%; padding: 14px 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle); background: rgba(255,255,255,0.04);
  color: var(--text-primary); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif; font-size: 0.9rem;
  transition: var(--transition); outline: none;
}
.contact-form-wrap input:focus,
.contact-form-wrap select:focus,
.contact-form-wrap textarea:focus { border-color: var(--accent-blue); }
.contact-form-wrap select { appearance: auto; }
.contact-form-wrap select option { background: var(--bg-secondary); color: var(--text-primary); }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: var(--bg-secondary); border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg); padding: 40px;
  max-width: 520px; width: 100%; max-height: 90vh; overflow-y: auto;
  position: relative; animation: fadeInUp 0.3s ease;
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; color: var(--text-muted);
  font-size: 1.3rem; cursor: pointer; transition: var(--transition);
}
.modal-close:hover { color: white; }
.modal-box h2 { font-size: 1.6rem; margin-bottom: 8px; }
.modal-box > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 24px; }
.modal-box form { display: flex; flex-direction: column; gap: 14px; }
.modal-box input,
.modal-box select,
.modal-box textarea {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle); background: rgba(255,255,255,0.04);
  color: var(--text-primary); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif; font-size: 0.9rem;
  transition: var(--transition); outline: none;
}
.modal-box input:focus,
.modal-box select:focus,
.modal-box textarea:focus { border-color: var(--accent-blue); }
.modal-box select { appearance: auto; }
.modal-box select option { background: var(--bg-secondary); color: var(--text-primary); }
.modal-contact {
  margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border-subtle);
  text-align: center;
}
.modal-contact p { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 10px; }
.modal-contact a {
  display: block; color: var(--accent-blue); font-size: 0.9rem;
  padding: 4px 0; transition: var(--transition);
}
.modal-contact a:hover { color: var(--accent-cyan); }

/* ===== WIDE MODAL (Trial & Demo) ===== */
.modal-wide { max-width: 820px; }
.modal-dual { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.modal-left h2 { font-size: 1.5rem; margin-bottom: 10px; }
.modal-left > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 20px; }
.modal-right h3 { font-size: 1.2rem; margin-bottom: 18px; }
.modal-right form { display: flex; flex-direction: column; gap: 12px; }
.modal-right input,
.modal-right select {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle); background: rgba(255,255,255,0.04);
  color: var(--text-primary); font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif; font-size: 0.9rem;
  outline: none; transition: var(--transition);
}
.modal-right input:focus, .modal-right select:focus { border-color: var(--accent-blue); }
.modal-right select { appearance: auto; }
.modal-right select option { background: var(--bg-secondary); color: var(--text-primary); }
.trial-features { margin-bottom: 16px; }
.trial-features li {
  padding: 6px 0; font-size: 0.88rem; color: var(--text-secondary);
}
.trial-note {
  font-size: 0.8rem; color: var(--accent-green);
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: rgba(0,232,157,0.08); border: 1px solid rgba(0,232,157,0.15);
}

/* Demo Modal */
.demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 24px 0; }
.demo-card {
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: 24px; position: relative;
  transition: var(--transition);
}
.demo-card:hover { border-color: var(--border-glow); }
.demo-step {
  position: absolute; top: 12px; right: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif; font-size: 2rem; font-weight: 700;
  background: var(--gradient-main); letter-spacing: -0.02em; -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  opacity: 0.3;
}
.demo-icon { font-size: 2rem; margin-bottom: 10px; }
.demo-card h4 { font-size: 1rem; margin-bottom: 8px; }
.demo-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }
.demo-cta {
  text-align: center; padding-top: 20px; border-top: 1px solid var(--border-subtle);
}
.demo-cta > p { color: var(--text-secondary); margin-bottom: 14px; font-size: 0.95rem; }
.demo-cta-btns { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

@media (max-width: 768px) {
  .modal-dual { grid-template-columns: 1fr; gap: 20px; }
  .demo-grid { grid-template-columns: 1fr; }
  .modal-wide { max-width: 100%; }
}

/* ===== FOOTER CONTACT INFO ===== */
.footer-contact-info { margin-top: 16px; display: flex; flex-direction: column; gap: 6px; }
.footer-contact-info a {
  color: var(--text-secondary); font-size: 0.85rem;
  transition: var(--transition); display: block;
}
.footer-contact-info a:hover { color: var(--accent-blue); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.8rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid, .testimonial-grid, .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .awards-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: rgba(10,14,26,0.98);
    padding: 24px; gap: 20px; border-bottom: 1px solid var(--border-subtle);
  }
  .hero .container { flex-direction: column; text-align: center; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { margin: 0 auto 36px; }
  .hero-btns { justify-content: center; flex-wrap: wrap; }
  .services-grid, .efficiency-grid, .testimonial-grid, .courses-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .awards-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 24px; }
  .section-header h2 { font-size: 2rem; }
  .modal-box { padding: 28px 20px; }
}