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

html { scroll-behavior: smooth; }

body {
  font-family: 'Sarabun', sans-serif;
  color: #1a1a2e;
  background: #fff;
  font-size: 17px;
  line-height: 1.7;
}

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== COLORS ===== */
:root {
  --primary: #1565c0;
  --primary-dark: #0d47a1;
  --accent: #ff6f00;
  --accent2: #43a047;
  --light-bg: #f0f4ff;
  --dark: #1a1a2e;
  --gray: #6b7280;
  --border: #e5e7eb;
}

.highlight { color: var(--primary); }
.highlight-light { color: #ffd54f; }
.section-tag {
  display: inline-block;
  background: #e3f2fd;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.section-tag-light {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 13px 30px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  transition: all .25s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(21,101,192,.3); }

.btn-outline {
  display: inline-block;
  border: 2px solid #fff;
  color: #fff;
  padding: 11px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  transition: all .25s;
}
.btn-outline:hover { background: #fff; color: var(--primary); }

.btn-line {
  display: inline-block;
  background: #00b900;
  color: #fff;
  padding: 13px 30px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  transition: all .25s;
}
.btn-line:hover { background: #009900; transform: translateY(-2px); }

.btn-full { width: 100%; text-align: center; }
.btn-call {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 10px 22px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15px;
  transition: all .25s;
  white-space: nowrap;
}
.btn-call:hover { background: #e65100; transform: translateY(-1px); }

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.1); }

.nav-container {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

/* Logo */
.logo { flex-shrink: 0; }
.logo-svg {
  height: 60px;
  width: auto;
  display: block;
}
.hero-logo-img {
  width: 280px;
  height: 280px;
  filter: drop-shadow(0 12px 40px rgba(0,0,0,.25));
  animation: float 4s ease-in-out infinite;
}
.footer-logo-svg {
  width: 100px;
  height: 100px;
  margin-bottom: 12px;
  border-radius: 50%;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-weight: 600;
  font-size: 15px;
  color: var(--dark);
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: width .25s;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: .3s;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero-bg {
  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%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  position: relative;
}
.hero-text { color: #fff; }
.hero-tag {
  display: inline-block;
  background: rgba(255,255,255,.2);
  color: #ffd54f;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
}
.hero h1 {
  font-family: 'Kanit', sans-serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
}
.hero h1 .highlight { color: #ffd54f; }
.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,.85);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero Image Card */
.hero-image { display: flex; justify-content: center; }
.hero-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.circle-outer {
  width: 240px; height: 240px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,.3);
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.1);
  animation: float 4s ease-in-out infinite;
}
.circle-inner {
  width: 200px; height: 200px;
  border-radius: 50%;
  background: #fff;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.future-text {
  font-family: 'Kanit', sans-serif;
  font-weight: 900;
  font-size: 28px;
  color: var(--primary);
  letter-spacing: 2px;
}
.future-text span { color: #e74c3c; }
.future-text sup { font-size: 12px; }
.enhance-text { font-size: 11px; color: var(--gray); letter-spacing: 1px; }
.mascot { font-size: 36px; color: var(--primary); margin-top: 4px; }

.stat-badges { display: flex; gap: 14px; }
.badge {
  background: #fff;
  border-radius: 16px;
  padding: 12px 18px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  min-width: 80px;
}
.badge strong {
  display: block;
  font-family: 'Kanit', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}
.badge span { font-size: 11px; color: var(--gray); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.wave-bottom { position: absolute; bottom: -1px; left: 0; right: 0; line-height: 0; }
.wave-bottom svg { width: 100%; height: 80px; }

/* ===== STATS BAR ===== */
.stats-bar { background: var(--light-bg); padding: 40px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.stat-item i {
  font-size: 32px;
  color: var(--primary);
  flex-shrink: 0;
}
.stat-item strong {
  display: block;
  font-weight: 700;
  font-size: 16px;
  color: var(--dark);
}
.stat-item p { font-size: 13px; color: var(--gray); }

/* ===== ABOUT ===== */
.about { padding: 100px 0; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
}
.about-img-placeholder {
  background: linear-gradient(135deg, var(--primary), #42a5f5);
  border-radius: 24px;
  height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  gap: 12px;
}
.about-img-placeholder i { font-size: 80px; opacity: .8; }
.about-img-placeholder .sub { font-size: 14px; opacity: .8; font-weight: 400; }
.about-text h2 {
  font-family: 'Kanit', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}
.about-text p { color: var(--gray); margin-bottom: 16px; }
.about-list { margin: 24px 0 32px; display: flex; flex-direction: column; gap: 12px; }
.about-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--dark);
}
.about-list li i { color: var(--accent2); font-size: 18px; }

/* ===== COURSES ===== */
.courses { padding: 100px 0; background: #f8faff; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 {
  font-family: 'Kanit', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-desc { color: var(--gray); font-size: 16px; }

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.course-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
  transition: all .3s;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,.12);
  border-color: transparent;
}
.course-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
}
.course-icon i { font-size: 28px; }
.course-card h3 {
  font-family: 'Kanit', sans-serif;
  font-size: 20px;
  font-weight: 700;
}
.course-card p { color: var(--gray); font-size: 14px; flex: 1; }
.course-card ul { display: flex; flex-direction: column; gap: 6px; }
.course-card ul li {
  font-size: 13px;
  color: var(--gray);
  padding-left: 16px;
  position: relative;
}
.course-card ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}
.course-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  margin-top: 8px;
  transition: gap .2s;
}
.course-link:hover { gap: 12px; }

/* ===== WHY ===== */
.why {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, #0d47a1, #1565c0);
  overflow: hidden;
}
.why-bg {
  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'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.why .section-header { position: relative; }
.why .section-header h2 { color: #fff; }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.why-card {
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  padding: 32px 28px;
  color: #fff;
  transition: all .3s;
}
.why-card:hover {
  background: rgba(255,255,255,.18);
  transform: translateY(-6px);
}
.why-icon {
  width: 56px; height: 56px;
  background: rgba(255,255,255,.2);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.why-card h3 {
  font-family: 'Kanit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.why-card p { color: rgba(255,255,255,.8); font-size: 14px; }

/* ===== TESTIMONIALS ===== */
.testimonials { padding: 100px 0; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform .3s;
}
.testimonial-card:hover { transform: translateY(-6px); }
.stars { color: #f59e0b; font-size: 16px; display: flex; gap: 3px; }
.testimonial-card p { color: var(--gray); font-size: 15px; flex: 1; font-style: italic; }
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--light-bg);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 15px; color: var(--dark); }
.testimonial-author span { font-size: 12px; color: var(--gray); }

/* ===== CONTACT ===== */
.contact { padding: 100px 0; background: var(--light-bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: flex-start;
}
.contact-info h2 {
  font-family: 'Kanit', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}
.contact-info > p { color: var(--gray); margin-bottom: 32px; }
.contact-details { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-item i {
  font-size: 20px;
  color: var(--primary);
  margin-top: 3px;
  width: 22px;
  flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 14px; margin-bottom: 2px; }
.contact-item a, .contact-item span { color: var(--gray); font-size: 15px; }
.contact-item a:hover { color: var(--primary); }
.social-buttons { display: flex; gap: 14px; }

.contact-form-wrap {
  background: #fff;
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 8px 40px rgba(0,0,0,.08);
}
.contact-form h3 {
  font-family: 'Kanit', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--dark);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  color: var(--dark);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  font-family: 'Sarabun', sans-serif;
  font-size: 15px;
  color: var(--dark);
  background: #fff;
  transition: border-color .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(21,101,192,.1); }
.form-group textarea { resize: vertical; }

/* ===== FOOTER ===== */
.footer { background: #0d1b3e; color: rgba(255,255,255,.8); padding: 80px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 60px;
}
.footer-logo {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}
.logo-future-footer {
  font-family: 'Kanit', sans-serif;
  font-weight: 900;
  font-size: 26px;
  color: #fff;
  letter-spacing: 3px;
}
.logo-sub-footer { font-size: 11px; color: rgba(255,255,255,.5); letter-spacing: 1px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 24px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 16px;
  transition: background .2s;
}
.footer-social a:hover { background: var(--primary); }
.footer-links h4, .footer-contact h4 {
  font-family: 'Kanit', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 0; }
.footer-links a {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  padding: 6px 0;
  transition: color .2s;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { font-size: 14px; margin-bottom: 10px; display: flex; gap: 10px; align-items: flex-start; }
.footer-contact i { color: var(--primary); margin-top: 3px; font-size: 14px; flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,.7); }
.footer-contact a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ===== FLOATING CALL ===== */
.float-call {
  display: none;
  position: fixed;
  bottom: 28px; right: 28px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #ff6f00;
  color: #fff;
  font-size: 24px;
  align-items: center; justify-content: center;
  box-shadow: 0 8px 28px rgba(255,111,0,.4);
  z-index: 900;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 28px rgba(255,111,0,.4); }
  50% { box-shadow: 0 8px 40px rgba(255,111,0,.7); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 20px; gap: 0; box-shadow: 0 8px 20px rgba(0,0,0,.1); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .hamburger { display: flex; }
  .btn-call { display: none; }

  .hero-content { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-buttons { justify-content: center; }
  .hero-image { order: -1; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img-placeholder { height: 280px; }

  .courses-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr; }

  .float-call { display: flex; }
  .stat-badges { flex-wrap: wrap; justify-content: center; }
  .social-buttons { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 60px; }
  .contact-form-wrap { padding: 28px 20px; }
}