:root {
  --primary-dark: #00225d;
  --primary-blue: #003087;
  --text-gray: #556070;
  --border-light: #e0e6ed;
  --bg-light: #f9fbfd;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  color: var(--primary-dark);
  overflow-x: hidden;
}

/* ===== HEADER ===== */
header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(15, 35, 72, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

.container {
  width: 1200px;
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 26px;
  color: #0b2f6b;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

nav li {
  padding-bottom: 6px;
  cursor: default;
}

nav li a {
  text-decoration: none;
  color: #1f335b;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

nav li a:hover {
  color: #0b2f6b;
}

nav li.active a {
  color: #0b2f6b;
  font-weight: 600;
  border-bottom: 3px solid #0b2f6b;
  padding-bottom: 6px;
}

.mentor-btn {
  background: #0b2f6b;
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  font-family: 'Poppins', sans-serif;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 6px 18px rgba(13, 38, 87, 0.2);
  cursor: pointer;
  text-decoration: none;
}

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid #0b2f6b;
  border-radius: 8px;
  cursor: pointer;
  padding: 6px;
  z-index: 1000;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #0b2f6b;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.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-mentor-btn { display: none; }

/* ===== HERO SECTION ===== */
.hero {
  display: flex;
  min-height: calc(100vh - 100px);
  position: relative;
}

.hero-content {
  flex: 1;
  padding: 60px 80px;
  max-width: 600px;
  z-index: 2;
}

.contact-tag {
  color: var(--primary-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.blue-dash {
  width: 25px;
  height: 3px;
  background: var(--primary-blue);
  margin-bottom: 30px;
}

h1 {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-desc {
  color: var(--text-gray);
  line-height: 1.6;
  margin-bottom: 40px;
  font-size: 16px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  margin-bottom: 15px;
  background: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.icon-circle {
  width: 44px;
  height: 44px;
  background: var(--primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  flex-shrink: 0;
}

.info-text span {
  display: block;
  font-size: 12px;
  color: var(--text-gray);
  margin-bottom: 4px;
}

.info-text strong {
  font-size: 16px;
  color: var(--primary-blue);
}

.service-cards {
  display: flex;
  gap: 15px;
  margin-top: 40px;
}

.service-card {
  flex: 1;
  padding: 20px;
  border-radius: 10px;
  display: flex;
  gap: 15px;
  text-decoration: none;
  transition: transform 0.2s;
}

.service-card:hover { transform: translateY(-2px); }

.service-card.dark {
  background: var(--primary-dark);
  color: white;
}

.service-card.light {
  background: white;
  border: 1px solid var(--primary-blue);
  color: var(--primary-dark);
}

.service-card .icon { font-size: 28px; }
.service-card h3 { font-size: 14px; margin-bottom: 8px; }
.service-card p { font-size: 11px; opacity: 0.8; line-height: 1.4; }

.hero-image {
  flex: 1.2;
  position: relative;
  background-image: linear-gradient(to right, white, transparent 0%), url('img/CONTACT.png');
  background-size:100% 100% ;
  background-position: center;
  background-repeat: no-repeat;
}

/* ===== FLOATING WHATSAPP ===== */
.float-chat-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 9999;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s ease;
}

.float-chat-btn:hover { transform: scale(1.08); }
.float-chat-btn i { font-size: 28px; color: #fff; }

.chat-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11, 47, 107, 0.35);
  backdrop-filter: blur(3px);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.chat-overlay.open { display: flex; }

.chat-popup {
  background: #fff;
  border-radius: 18px;
  padding: 36px 32px;
  width: 100%;
  max-width: 420px;
  position: relative;
  animation: popupIn 0.3s ease;
}

@keyframes popupIn {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.chat-popup h3 { margin: 0 0 6px; font-size: 20px; color: #0b2f6b; font-weight: 700; }
.chat-popup p  { margin: 0 0 22px; font-size: 13px; color: #51627b; }

.chat-close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: transparent;
  border: none;
  font-size: 24px;
  color: #7b8ca8;
  cursor: pointer;
  line-height: 1;
}

.chat-close:hover { color: #0b2f6b; }

.chat-field { margin-bottom: 16px; }

.chat-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #0b2f6b;
  margin-bottom: 6px;
}

.chat-field input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #d6deea;
  border-radius: 10px;
  font-size: 14px;
  font-family: 'Poppins', sans-serif;
  color: #3b4b64;
  outline: none;
  transition: border 0.2s;
}

.chat-field input:focus { border-color: #0b2f6b; }

.chat-submit {
  width: 100%;
  margin-top: 8px;
  padding: 13px;
  background: #25d366;
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.2s;
}

.chat-submit:hover { background: #1ebe5d; }
.chat-submit i { font-size: 18px; }

/* ===== FOOTER ===== */
.footer {
  background: #0f2a5c;
  color: white;
  padding: 60px 20px 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-col h3 { margin-bottom: 15px; font-size: 20px; }
.footer-col h4 { margin-bottom: 15px; font-size: 16px; }
.footer-col p  { margin-bottom: 8px; opacity: 0.85; font-size: 14px; }

.footer-col a {
  display: block;
  text-decoration: none;
  color: white;
  opacity: 0.8;
  margin-bottom: 8px;
  font-size: 14px;
}

.footer-col a:hover { opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.2);
  margin-top: 40px;
  padding-top: 15px;
  text-align: center;
  font-size: 13px;
  opacity: 0.7;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .container { width: 100%; padding: 0 20px; }
  .hero { flex-direction: column; }
  .hero-content { padding: 40px; max-width: 100%; }
  .hero-image { height: 300px; }
  h1 { font-size: 40px; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .desktop-only { display: none !important; }

  nav ul#nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(11, 47, 107, 0.12);
    padding: 16px 0;
    z-index: 999;
    gap: 0;
  }

  nav ul#nav-menu.open { display: flex; }

  nav ul#nav-menu li {
    padding: 12px 24px;
    border-bottom: 1px solid #eef1f8;
    font-size: 15px;
    font-weight: 500;
    color: #0b2f6b;
    list-style: none;
  }

  nav li.active {
    border-left: 4px solid #0b2f6b;
    padding-left: 20px;
    background: #f0f5fc;
    border-bottom: 1px solid #eef1f8 !important;
  }

  nav li.active a {
    border-bottom: none;
  }

  .mobile-mentor-btn {
    display: block !important;
    padding: 16px 24px !important;
  }

  .mobile-mentor-btn .mentor-btn {
    width: 100%;
    justify-content: center;
  }

  .hero-content { padding: 30px 20px; }
  h1 { font-size: 32px; }
  .hero-image { display: none; }

  .service-cards { flex-direction: column; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }

  .chat-popup { margin: 0 16px; padding: 28px 20px; }
}

@media (max-width: 480px) {
  h1 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; }
}