/* Infinix Tech Cloud — Learning Platform Landing
   Simple, classic layout. ITC sky-blue + gold palette.
   Photo 3 = subtle page watermark. Photo 1 = bold hero image. */

:root {
  --blue:        #4FA3DD;
  --blue-dark:   #2E86C1;
  --blue-deep:   #1F6FA8;
  --blue-soft:   rgba(79, 163, 221, 0.12);

  --gold:        #D4A017;
  --gold-dark:   #A8800E;
  --gold-soft:   rgba(212, 160, 23, 0.14);
  --gold-light:  #F4D97A;

  --ink:         #0F2642;
  --ink-2:       #23344F;
  --ink-soft:    #4A5B75;
  --ink-mute:    #7B8AA3;

  --bg:          #F8FAFD;
  --card:        #FFFFFF;
  --line:        #E1E8F1;
  --line-soft:   #EEF3F9;

  --shadow-sm:   0 2px 10px rgba(46, 134, 193, 0.06);
  --shadow:      0 8px 24px rgba(46, 134, 193, 0.10);
  --shadow-lg:   0 20px 44px rgba(46, 134, 193, 0.18);
  --shadow-gold: 0 8px 22px rgba(212, 160, 23, 0.22);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

/* ---------- PAGE WATERMARK (Photo 3) ---------- */
.page-bg {
  position: fixed;
  inset: 0;
  background: url('photo%203.png') center center / cover no-repeat;
  opacity: 0.06;
  filter: grayscale(25%);
  z-index: 0;
  pointer-events: none;
}

/* Keep content above watermark */
.topbar, main, .foot { position: relative; z-index: 1; }

/* ---------- TOP BAR ---------- */
.topbar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
}

.brand { display: inline-flex; align-items: center; }

.brand-logo {
  height: 78px;
  width: auto;
  mix-blend-mode: multiply;
}

.topbar-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-dark);
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  transition: all 180ms ease;
  white-space: nowrap;
}
.topbar-link:hover {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

/* ---------- HERO ---------- */
.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 28px 72px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-text { max-width: 580px; }

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(30px, 4.6vw, 50px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 18px;
}

.accent-blue { color: var(--blue-dark); }
.accent-gold { color: var(--gold-dark); }

.lead {
  color: var(--ink-soft);
  font-size: clamp(15px, 1.5vw, 17px);
  margin-bottom: 28px;
}

.trust {
  display: flex;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.trust > div {
  display: flex;
  flex-direction: column;
  padding: 0 16px;
  border-right: 1px solid var(--line);
  flex: 1;
}
.trust > div:first-child { padding-left: 0; }
.trust > div:last-child { border-right: none; padding-right: 0; }

.trust strong {
  font-size: 13.5px;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 2px;
  white-space: nowrap;
}
.trust span {
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.3;
}

/* Hero image — bold, straight, no tilt, no badges */
.hero-image {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 4 / 5;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  justify-self: end;
  border: 6px solid #fff;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- PORTALS + SIDEBAR GRID ---------- */
.main-grid {
  max-width: 1180px;
  margin: 0 auto 80px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: start;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line-soft);
}

/* Portal cards — classic horizontal layout */
.portals-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.card {
  display: block;
  padding: 24px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.card-gold { border-left-color: var(--gold); }

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.card-inner {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.card-ring {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 3px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 22px;
  background: #fff;
}
.card-ring-blue { color: var(--blue); }
.card-ring-gold { color: var(--gold); }
.card-ring span { line-height: 1; }

.card-body { flex: 1; min-width: 0; }

.card-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 8px;
}
.tag-blue { background: var(--blue-soft); color: var(--blue-deep); }
.tag-gold { background: var(--gold-soft); color: var(--gold-dark); }

.card h3 {
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 6px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.card p {
  color: var(--ink-soft);
  font-size: 14.5px;
}

.card-cta {
  display: inline-block;
  padding: 11px 20px;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  transition: background 200ms ease;
}
.cta-blue { background: var(--blue); }
.cta-gold { background: var(--gold); }
.card:hover .cta-blue { background: var(--blue-dark); }
.card:hover .cta-gold { background: var(--gold-dark); }

/* Course sidebar */
.courses-sidebar {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 24px 20px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 24px;
}

.course-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.course-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.course-list li:last-child { border-bottom: none; padding-bottom: 0; }

.course-dot {
  flex-shrink: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-top: 7px;
}
.dot-blue { background: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.dot-gold { background: var(--gold); box-shadow: 0 0 0 3px var(--gold-soft); }

.course-list div { flex: 1; }

.course-list strong {
  display: block;
  font-size: 14px;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 2px;
}

.course-list span {
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.4;
}

.sidebar-cta {
  display: inline-block;
  padding: 10px 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-dark);
  background: var(--blue-soft);
  border-radius: 8px;
  transition: background 180ms ease, color 180ms ease;
}
.sidebar-cta:hover {
  background: var(--blue);
  color: #fff;
}

/* ---------- CTA BANNER ---------- */
.cta-banner {
  max-width: 1180px;
  margin: 0 auto 64px;
  padding: 0 28px;
}

.cta-banner-inner {
  background: linear-gradient(120deg, var(--blue-deep) 0%, var(--blue-dark) 55%, var(--gold-dark) 120%);
  color: #fff;
  padding: 36px 44px;
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}

.cta-banner h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.015em;
  margin-bottom: 4px;
}
.cta-banner p {
  font-size: 15px;
  opacity: 0.92;
}

.btn-gold {
  display: inline-block;
  padding: 13px 24px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  color: var(--ink);
  font-weight: 700;
  font-size: 14.5px;
  border-radius: 10px;
  white-space: nowrap;
  box-shadow: var(--shadow-gold);
  transition: transform 200ms ease;
}
.btn-gold:hover { transform: translateY(-2px); }

/* ---------- FOOTER ---------- */
.foot {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(6px);
}
.foot-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.foot-mark { height: 32px; width: 32px; }
.foot p { color: var(--ink-mute); font-size: 13px; margin-right: auto; margin-left: 4px; }
.foot-links { display: flex; gap: 18px; }
.foot-links a { color: var(--ink-soft); font-size: 14px; }
.foot-links a:hover { color: var(--blue-dark); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 28px 24px 56px;
  }
  .hero-image { justify-self: center; max-width: 440px; }

  .main-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .courses-sidebar { position: static; }
}

@media (max-width: 720px) {
  .topbar { padding: 14px 18px; }
  .brand-logo { height: 56px; }
  .topbar-link { font-size: 13px; padding: 7px 12px; }

  .hero { padding: 20px 18px 44px; gap: 30px; }
  .hero h1 { font-size: clamp(26px, 7vw, 36px); }

  .trust { flex-direction: column; align-items: stretch; gap: 10px; padding: 14px 18px; }
  .trust > div {
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 8px 0;
  }
  .trust > div:last-child { border-bottom: none; }
  .trust > div:first-child { padding-top: 0; }

  .hero-image { max-width: 100%; border-width: 4px; }

  .main-grid { padding: 0 18px; margin-bottom: 56px; }
  .card { padding: 20px; }
  .card-inner { gap: 14px; margin-bottom: 16px; }
  .card-ring { width: 46px; height: 46px; font-size: 18px; }
  .card h3 { font-size: 18px; }

  .cta-banner { padding: 0 18px; margin-bottom: 48px; }
  .cta-banner-inner { flex-direction: column; align-items: flex-start; padding: 28px; }

  .foot-inner { flex-direction: column; align-items: flex-start; padding: 20px 18px; }
  .foot p { margin: 4px 0; }
}