@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Nunito:wght@300;400;600;700&display=swap');

:root {
  --navy:    #0a1f44;
  --teal:    #00aecc;
  --cyan:    #00d4e8;
  --pink:    #e0106e;
  --orange:  #f07c10;
  --white:   #ffffff;
  --light-bg:#f0f8fc;
  --text:    #1a2a3a;
  --muted:   #5a7080;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

/* ── HEADER ── */
header {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  background: var(--navy);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 72px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.35);
}

.logo-area {
  display: flex; align-items: center; gap: 14px;
  text-decoration: none; flex-shrink: 0;
}
.logo-img-real {
  width: 56px; height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.logo-text .brand {
  font-family: 'Rajdhani', sans-serif;
  font-size: 20px; font-weight: 700; letter-spacing: 1px;
  background: linear-gradient(90deg, #e0106e 0%, #b44fdb 35%, #5b6ef5 65%, #00c6ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 8px rgba(224,16,110,0.3));
}
.logo-text .brand span {
  background: inherit;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-text .tagline {
  font-size: 10px; color: var(--teal);
  letter-spacing: 0.5px; text-transform: uppercase;
}

/* ── DESKTOP NAV ── */
nav { display: flex; align-items: center; gap: 4px; }
nav a {
  color: rgba(255,255,255,0.82);
  text-decoration: none;
  font-family: 'Rajdhani', sans-serif;
  font-size: 15px; font-weight: 600;
  padding: 8px 14px; border-radius: 6px;
  letter-spacing: 0.5px; transition: all 0.2s;
  position: relative; white-space: nowrap;
  min-height: 44px;
  display: flex;
  align-items: center;
}
nav a::after {
  content: '';
  position: absolute; bottom: 4px; left: 14px; right: 14px; height: 2px;
  background: var(--cyan); transform: scaleX(0); transition: transform 0.25s;
}
nav a:hover        { color: var(--cyan); background: rgba(0,212,232,0.08); }
nav a:hover::after { transform: scaleX(1); }
nav a.active       { color: var(--cyan); background: rgba(0,212,232,0.1); }

/* ── HAMBURGER BUTTON ── */
.hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 48px; height: 48px;
  background: rgba(255,255,255,0.08); border-radius: 8px;
  cursor: pointer; border: none; flex-shrink: 0;
  touch-action: manipulation;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: #fff; 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 NAV DRAWER ── */
.mobile-nav {
  display: none;
  position: fixed; top: 72px; left: 0; right: 0;
  background: var(--navy); z-index: 999;
  border-top: 1px solid rgba(0,212,232,0.2);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  opacity: 0; transform: translateY(-8px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.mobile-nav.open { opacity: 1; transform: translateY(0); pointer-events: all; }
.mobile-nav a {
  display: block; padding: 15px 24px;
  color: rgba(255,255,255,0.85); text-decoration: none;
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px; font-weight: 600; letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all 0.2s;
}
.mobile-nav a:hover, .mobile-nav a.active {
  color: var(--cyan); background: rgba(0,212,232,0.08); padding-left: 32px;
}

/* ── WHATSAPP FLOAT ── */
.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 60px; height: 60px; background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.5);
  animation: wapulse 2.5s infinite; transition: transform 0.2s;
}
.whatsapp-float:hover { transform: scale(1.12); }
.whatsapp-float svg  { width: 32px; height: 32px; fill: white; }
@keyframes wapulse {
  0%,100% { box-shadow: 0 4px 20px rgba(37,211,102,0.5); }
  50%      { box-shadow: 0 4px 36px rgba(37,211,102,0.85); }
}

/* ── SECTION COMMON ── */
section { min-height: 100vh; padding-top: 72px; }
.section-inner { max-width: 1200px; margin: 0 auto; padding: 80px 40px; }

.section-header  { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  background: rgba(0,174,204,0.1); color: var(--teal);
  font-size: 12px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; padding: 6px 16px; border-radius: 20px;
  margin-bottom: 12px; border: 1px solid rgba(0,174,204,0.25);
}
.section-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(24px, 5vw, 46px); font-weight: 700;
  color: var(--navy); line-height: 1.15;
}
.section-title span { color: var(--teal); }
.section-divider {
  width: 60px; height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--cyan));
  border-radius: 2px; margin: 16px auto 0;
}

/* ── COURSE CARDS ── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.course-card {
  background: #fff; border-radius: 14px;
  border: 1px solid #e2eef5; padding: 28px;
  transition: all 0.28s; position: relative; overflow: hidden;
}
.course-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s;
}
.course-card:hover { transform: translateY(-5px); box-shadow: 0 12px 36px rgba(0,174,204,0.15); border-color: var(--teal); }
.course-card:hover::before { transform: scaleX(1); }
.course-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(0,174,204,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 18px;
}
.course-card h3 { font-family: 'Rajdhani', sans-serif; font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.course-card p  { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 16px; }
.course-tags    { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: rgba(0,174,204,0.08); color: var(--teal);
  font-size: 11px; font-weight: 700; padding: 4px 10px;
  border-radius: 20px; letter-spacing: 0.5px; border: 1px solid rgba(0,174,204,0.2);
}

/* ── PLACEMENT BANNER ── */
.placement-banner {
  background: linear-gradient(135deg, var(--navy), #0d3460);
  border-radius: 16px; padding: 40px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap; margin-top: 48px;
}
.pb-left h2 { font-family: 'Rajdhani', sans-serif; font-size: clamp(22px,4vw,32px); font-weight: 700; color: var(--cyan); }
.pb-left p  { color: rgba(255,255,255,0.72); font-size: 15px; margin-top: 6px; }
.pb-badges  { display: flex; gap: 16px; flex-wrap: wrap; }
.pb-badge {
  background: rgba(0,212,232,0.12); border: 1px solid rgba(0,212,232,0.3);
  border-radius: 10px; padding: 12px 20px; text-align: center;
}
.pb-badge strong { display: block; font-family: 'Rajdhani', sans-serif; font-size: 28px; font-weight: 700; color: var(--cyan); }
.pb-badge span   { font-size: 12px; color: rgba(255,255,255,0.65); text-transform: uppercase; }

/* ── PDF PLACEHOLDER ── */
.pdf-section-box {
  background: #f7fcff; border: 2px dashed rgba(0,174,204,0.35);
  border-radius: 14px; padding: 40px; text-align: center; margin-top: 36px;
}
.pdf-section-box h3 { font-family: 'Rajdhani', sans-serif; font-size: 22px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.pdf-section-box p  { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.pdf-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; margin-top: 20px; }
.pdf-card {
  background: #fff; border: 1px solid #ddeef5; border-radius: 10px;
  padding: 20px 16px; text-align: center; font-size: 13px; color: var(--muted);
  cursor: pointer; transition: all 0.2s;
}
.pdf-card:hover    { border-color: var(--teal); color: var(--navy); box-shadow: 0 4px 14px rgba(0,174,204,0.12); }
.pdf-card .pdf-icon{ font-size: 32px; margin-bottom: 8px; }
.pdf-card strong   { display: block; color: var(--navy); font-size: 14px; margin-bottom: 4px; }
.pdf-placeholder   { background: #e8f5fb; border-radius: 10px; padding: 20px; color: var(--teal); font-weight: 600; font-size: 13px; }

/* ── FOOTER ── */
footer {
  background: #060f20; padding: 24px 40px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
footer p    { color: rgba(255,255,255,0.4); font-size: 13px; }
footer a    { color: var(--teal); text-decoration: none; font-size: 13px; }
footer a:hover { color: var(--cyan); }

/* ── SCROLL ANIMATION ── */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.55s ease, transform 0.55s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
══════════════════════════════════════════════ */

/* Tablet (≤900px) */
@media (max-width: 900px) {
  header         { padding: 0 20px; }
  nav a          { padding: 6px 10px; font-size: 14px; min-height: 44px; }
  .section-inner { padding: 60px 24px; }
}

/* Mobile (≤768px) */
@media (max-width: 768px) {
  * { -webkit-touch-callout: none; }
  
  nav            { display: none; }
  .hamburger     { display: flex; }
  .mobile-nav    { display: block; top: 64px; }

  header         { padding: 0 12px; height: 60px; }
  section        { padding-top: 60px; }

  .logo-img-real      { width: 44px; height: 44px; }
  .logo-text .brand   { font-size: 14px; letter-spacing: 0; }
  .logo-text .tagline { font-size: 7px; display: block; }

  .section-inner  { padding: 40px 16px; }
  .section-header { margin-bottom: 32px; }
  
  h1 { font-size: clamp(24px, 6vw, 40px) !important; }
  h2 { font-size: clamp(22px, 5vw, 32px) !important; }
  h3 { font-size: clamp(18px, 4vw, 24px) !important; }
  p { font-size: clamp(14px, 3vw, 16px); line-height: 1.6; }
  
  a, button { min-height: 48px; min-width: 48px; display: inline-flex; align-items: center; justify-content: center; }

  .courses-grid   { grid-template-columns: 1fr; }
  .pdf-grid       { grid-template-columns: repeat(2, 1fr); }

  .placement-banner { padding: 24px 16px; flex-direction: column; align-items: flex-start; }
  .pb-badges        { width: 100%; justify-content: flex-start; }

  footer            { padding: 20px 16px; flex-direction: column; align-items: flex-start; font-size: 13px; }
  footer a { font-size: 13px; }

  .whatsapp-float   { bottom: 16px; right: 16px; width: 56px; height: 56px; }
  .whatsapp-float svg { width: 28px; height: 28px; }

  /* Better button spacing on mobile */
  .btn-primary, .btn-secondary {
    padding: 14px 24px !important;
    font-size: 14px;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    border-radius: 8px;
  }

  /* Form elements */
  input, textarea, select {
    font-size: 16px !important;
    padding: 12px 14px;
    min-height: 48px;
  }

  /* Touch-friendly spacing */
  .contact-detail { margin: 16px 0; }
  .info-row { margin: 20px 0; }
}

/* Small Mobile (≤480px) */
@media (max-width: 480px) {
  body { font-size: 14px; }
  
  header { padding: 0 8px; height: 56px; }
  .logo-img-real    { width: 36px; height: 36px; }
  .logo-text .brand { font-size: 12px; }
  
  .section-inner { padding: 32px 12px; }
  
  h1 { font-size: clamp(20px, 6vw, 32px) !important; }
  h2 { font-size: clamp(18px, 5vw, 28px) !important; }
  h3 { font-size: clamp(16px, 4vw, 22px) !important; }
  p { font-size: 14px; line-height: 1.6; }
  
  .pdf-grid         { grid-template-columns: 1fr; }
  .pb-badges        { flex-direction: column; }
  .pb-badge         { width: 100%; }
  .course-card      { padding: 20px; }
  .pdf-section-box  { padding: 20px 12px; }
  
  /* Ensure buttons are full width on very small screens when needed */
  .btn-primary, .btn-secondary {
    padding: 12px 18px !important;
    font-size: 13px;
    min-height: 48px;
  }
  
  /* Stack forms vertically */
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
  
  /* Better list spacing */
  li { margin: 8px 0; }
  ul { margin: 16px 0; padding-left: 20px; }
}

/* Extra small devices (≤360px) */
@media (max-width: 360px) {
  .section-inner { padding: 24px 8px; }
  h1 { font-size: clamp(18px, 5vw, 28px) !important; }
  h2 { font-size: clamp(16px, 4vw, 24px) !important; }
  p { font-size: 13px; }
}