/**
 * about-us.css — Cerebrum City About Us Page
 * Theme: cerebrum
 */

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BACKGROUND OVERRIDE */
html, body { background: #f0f4ff !important; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TOKENS */
:root {
  --au-bg:              #f0f4ff;
  --au-text:            #0d1117;
  --au-muted:           #4a5568;
  --au-hint:            #94a3b8;
  --au-accent:          #1a56db;
  --au-violet:          #6d28d9;
  --au-grad:            linear-gradient(135deg, #1a56db 0%, #6d28d9 100%);
  --au-glass-bg:        rgba(255,255,255,0.55);
  --au-glass-bg-strong: rgba(255,255,255,0.78);
  --au-glass-border:    rgba(255,255,255,0.65);
  --au-glass-shadow:    0 8px 32px rgba(26,86,219,.10), 0 1.5px 6px rgba(0,0,0,.06);
  --au-glass-shadow-lg: 0 20px 60px rgba(26,86,219,.13), 0 4px 16px rgba(0,0,0,.08);
  --au-r-sm:  10px;
  --au-r-md:  16px;
  --au-r-lg:  22px;
  --au-r-xl:  28px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SHARED */
#au-page { font-family: 'Barlow', sans-serif; color: var(--au-text); overflow-x: hidden; }
#au-page .container { max-width: 1160px; margin: 0 auto; padding: 0 40px; }

#au-page .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--au-accent); margin-bottom: 14px;
}
#au-page .section-label::before {
  content: ''; display: block; width: 16px; height: 2px;
  background: var(--au-grad); border-radius: 1px;
}
#au-page .section-heading {
  font-family: 'Poppins', sans-serif; font-size: clamp(26px, 4vw, 42px);
  font-weight: 800; line-height: 1.12; color: var(--au-text); margin: 0 0 16px;
}
#au-page .section-heading em {
  font-style: italic;
  background: var(--au-grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
#au-page .section-sub { font-size: 16.5px; line-height: 1.78; color: var(--au-muted); max-width: 660px; margin: 0 0 44px; }

/* Buttons */
#au-page .btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--au-grad); color: #fff;
  font-family: 'Barlow', sans-serif; font-size: 15px; font-weight: 700;
  padding: 14px 30px; border-radius: var(--au-r-sm); border: none; cursor: pointer;
  box-shadow: 0 4px 18px rgba(26,86,219,.35); transition: opacity .2s, transform .15s;
}
#au-page .btn-primary:hover { opacity: .88; transform: translateY(-1px); }
#au-page .btn-light {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.10); color: #fff;
  font-family: 'Barlow', sans-serif; font-size: 15px; font-weight: 700;
  padding: 14px 28px; border-radius: var(--au-r-sm);
  border: 1.5px solid rgba(255,255,255,.22);
  backdrop-filter: blur(12px); transition: all .2s; cursor: pointer; white-space: nowrap;
}
#au-page .btn-light:hover { background: rgba(255,255,255,.18); }
#au-page .btn-ghost-white {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: rgba(255,255,255,.75);
  font-family: 'Barlow', sans-serif; font-size: 15px; font-weight: 700;
  padding: 13px 28px; border-radius: var(--au-r-sm);
  border: 1.5px solid rgba(255,255,255,.18); transition: all .2s; cursor: pointer;
}
#au-page .btn-ghost-white:hover { background: rgba(255,255,255,.08); }
#au-page .cta-group { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ HERO */
#au-page .au-hero {
  position: relative; min-height: 92vh;
  display: flex; align-items: center;
  overflow: hidden; background: #0a0f1e;
  padding-top: 80px; /* clear sticky nav */
}
#au-page .au-hero__photo {
  position: absolute; inset: 0; z-index: 0;
  background: center center / cover no-repeat;
  filter: brightness(150%) contrast(90%);
}
#au-page .au-hero__photo::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(
    90deg,
    rgba(5,9,26,.72) 0%,
    rgba(5,9,26,.45) 45%,
    rgba(5,9,26,.10) 75%,
    rgba(5,9,26,.02) 100%
  );
}
/* Glass card */
#au-page .au-hero__card {
  margin-bottom: 100px;
  position: relative; z-index: 4;
  margin-left: clamp(40px, 10vw, 200px);
  width: clamp(280px, 36vw, 460px);
  background: rgb(5 9 26 / 35%);
  backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px);
  border: none; border-radius: 24px;
  padding: clamp(24px, 3vw, 44px);
  box-shadow: 0 32px 80px rgba(0,0,0,.32), 0 8px 24px rgba(0,0,0,.20);
}
/* Gradient border via pseudo-element */
#au-page .au-hero__card::before {
  content: ''; position: absolute; inset: 0;
  border-radius: 26px; padding: 2px;
  background: linear-gradient(
    135deg,
    rgb(255 255 255 / 43%) 0%,
    rgba(255,255,255,.15) 30%,
    rgb(163 159 148 / 35%) 60%,
    rgb(4 45 137 / 56%) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none; z-index: 0;
}
#au-page .au-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgb(135 168 241 / 8%); color: #fff;
  font-size: 12px; font-weight: 700; padding: 6px 14px;
  border-radius: 100px; border: 1px solid rgb(255 255 255 / 18%);
  margin-bottom: 18px;
}
#au-page .au-eyebrow-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #fff;
  animation: au-pulse-dot 2s ease-in-out infinite;
}
@keyframes au-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .4; transform: scale(.8); }
}
#au-page .au-hero__headline {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 800; line-height: 1.08; color: #fff; margin: 0;
}
#au-page .au-hero__headline em {
  font-style: italic; display: block;
  background: var(--au-grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
#au-page .au-hero__rule {
  width: 44px; height: 3px; background: var(--au-grad);
  border-radius: 2px; margin: 20px 0 22px;
}
#au-page .au-hero__sub {
  font-size: 15px; line-height: 1.75; color: #fff; margin: 18px 0 26px;
}
#au-page .au-ms-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 16px; border-radius: 10px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(8px);
}
#au-page .au-ms-badge__title {
  font-family: 'Poppins', sans-serif; font-size: 11px; font-weight: 800;
  color: #fff; letter-spacing: .02em; line-height: 1.2;
}
#au-page .au-ms-badge__sub {
  font-size: 10px; color: rgba(255,255,255,.6); font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; margin-top: 1px;
}
/* Bottom badges bar */
#au-page .au-hero__badges {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 4;
  background: rgb(142 142 142 / 38%);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,.55);
  box-shadow: 0 -2px 20px rgba(0,0,0,.08);
}
#au-page .au-hero__badges-inner {
  max-width: 1060px; margin: 0 auto; padding: 0 40px;
  display: flex; align-items: stretch;
}
#au-page .au-h-badge {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 48px 18px 0;
}
#au-page .au-h-badge:first-child { padding-left: 0; }
#au-page .au-h-badge-icon {
  width: 38px; height: 38px; border-radius: var(--au-r-sm); flex-shrink: 0;
  background: linear-gradient(135deg, rgba(26,86,219,.10), rgba(109,40,217,.12));
  border: 1px solid rgba(26,86,219,.14);
  display: flex; align-items: center; justify-content: center; font-size: 17px;
}
#au-page .au-h-badge strong {
  display: block; font-size: 13px; font-weight: 700;
  color: var(--au-text); margin-bottom: 1px;
}
#au-page .au-h-badge span {
  font-size: 12px; color: #fff; line-height: 1.4; display: block;
}
#au-page .au-h-badge-divider {
  width: 1px; background: rgba(26,86,219,.1);
  margin: 12px 48px 12px 0; flex-shrink: 0;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ MISSION */
#au-page .au-mission { padding: 108px 0; background: var(--au-bg); }
#au-page .au-mission__grid { max-width: 780px; }
#au-page .au-mission__copy {
  font-size: 16.5px; line-height: 1.82; color: var(--au-muted); margin-bottom: 18px;
}
#au-page .au-mission__copy strong { color: var(--au-text); font-weight: 700; }
#au-page .au-partner-badges {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; margin-bottom: 6px;
}
#au-page .au-pbadge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; padding: 7px 14px;
  border-radius: 8px; white-space: nowrap;
}
#au-page .au-pbadge--blue {
  background: rgba(26,86,219,.07); color: var(--au-accent);
  border: 1px solid rgba(26,86,219,.16);
}
#au-page .au-pbadge--violet {
  background: rgba(109,40,217,.07); color: var(--au-violet);
  border: 1px solid rgba(109,40,217,.16);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CLIENT MARQUEE */
#au-page .au-logos-strip {
  background: #ffffff;
  padding: 1.3rem 0;
  border-top:    1px solid rgba(0,0,0,.05);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
#au-page .au-logos__label {
  text-align: center;
  font-family: 'Poppins', sans-serif;
  font-size: .72rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--au-hint); margin-bottom: 1.5rem;
}
#au-page .au-continuous-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image:         linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}
#au-page .au-marquee-track {
  display: flex; align-items: center;
  gap: 2.5rem; width: max-content;
  animation: au-logo-scroll 120s linear infinite;
}
#au-page .au-marquee-track:hover { animation-play-state: paused; }
@keyframes au-logo-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-33.333%); }
}
#au-page .au-marquee-item {
  flex-shrink: 0; display: flex; align-items: center;
}
#au-page .au-marquee-item img {
  height: 32px; width: auto; display: block;
  filter: grayscale(1) opacity(.55);
  transition: filter .3s;
}
#au-page .au-marquee-item img:hover { filter: grayscale(0) opacity(1); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TEAM SECTION */
#au-page .au-team {
  padding: 96px 0 108px;
  background: linear-gradient(180deg, var(--au-bg) 0%, rgba(228,238,255,.65) 100%);
}
#au-page .au-team__inner {
  display: grid; grid-template-columns: 1.08fr 1fr; gap: 64px; align-items: center;
}
#au-page .au-team__img-wrap { position: relative; }
#au-page .au-team__img-frame {
  border-radius: var(--au-r-xl); overflow: hidden;
  box-shadow: 0 32px 80px rgba(26,86,219,.18), 0 8px 24px rgba(0,0,0,.10);
}
#au-page .au-team__img-frame img {
  width: 100%; height: 650px; object-fit: cover; display: block;
  filter: saturate(.88) brightness(.96) hue-rotate(5deg);
  transition: filter .4s;
}
#au-page .au-team__img-placeholder {
  width: 100%; height: 650px;
  background: linear-gradient(135deg, #dce8ff 0%, #c8d9ff 100%);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
}
#au-page .au-team__img-placeholder svg { opacity: .4; }
#au-page .au-team__img-placeholder p {
  font-size: 13px; color: var(--au-muted); font-weight: 600; opacity: .6;
}
#au-page .au-team__text { padding-top: 8px; }
#au-page .au-values { display: flex; flex-direction: column; gap: 14px; margin: 0 0 36px; }
#au-page .au-value-item {
  display: flex; align-items: flex-start; gap: 14px; padding: 17px 18px;
  border-radius: 14px; background: var(--au-glass-bg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--au-glass-border); transition: box-shadow .2s;
}
#au-page .au-value-item:hover { box-shadow: var(--au-glass-shadow); }
#au-page .au-value-icon {
  width: 36px; height: 36px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(26,86,219,.10), rgba(109,40,217,.14));
  border: 1px solid rgba(26,86,219,.14);
}
#au-page .au-value-item h5 {
  font-family: 'Poppins', sans-serif; font-size: 14px; font-weight: 700;
  color: var(--au-text); margin-bottom: 4px;
}
#au-page .au-value-item p { font-size: 13px; color: var(--au-muted); line-height: 1.58; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TIMELINE */
#au-page .au-timeline-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--au-bg) 0%, rgba(228,238,255,.55) 100%);
}
#au-page .au-tl-layout {
  margin-top: 48px; max-width: 780px;
}
#au-page .au-timeline { position: relative; padding-left: 36px; }
#au-page .au-timeline::before {
  content: ''; position: absolute; left: 0; top: 10px; bottom: 10px; width: 2px;
  background: linear-gradient(180deg, rgba(26,86,219,.15) 0%, rgba(109,40,217,.35) 50%, rgba(26,86,219,.1) 100%);
  border-radius: 2px;
}
#au-page .au-tl-item { position: relative; padding: 0 0 44px 44px; }
#au-page .au-tl-item:last-child { padding-bottom: 0; }
#au-page .au-tl-dot {
  position: absolute; left: -8px; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--au-grad);
  box-shadow: 0 0 0 5px rgba(26,86,219,.12);
}
#au-page .au-tl-year {
  font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--au-accent); margin-bottom: 6px;
}
#au-page .au-tl-title {
  font-family: 'Poppins', sans-serif; font-size: 18px; font-weight: 700;
  color: var(--au-text); margin-bottom: 8px;
}
#au-page .au-tl-desc { font-size: 14.5px; line-height: 1.72; color: var(--au-muted); }
#au-page .au-tl-badge {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 12px; font-size: 11.5px; font-weight: 700;
  padding: 4px 13px; border-radius: 100px;
  background: rgba(26,86,219,.08); color: var(--au-accent);
  border: 1px solid rgba(26,86,219,.16);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ FINAL CTA */
#au-page .au-cta {
  padding: 120px 0; text-align: center;
  background: linear-gradient(135deg, #0d1b4b 0%, #1a0a3d 100%);
  position: relative; overflow: hidden;
}
#au-page .au-cta::before {
  content: ''; position: absolute; inset: -20%; pointer-events: none;
  background:
    radial-gradient(ellipse 55% 45% at 80% 50%, rgba(109,40,217,.28) 0%, transparent 55%),
    radial-gradient(ellipse 40% 60% at 10% 30%, rgba(26,86,219,.22) 0%, transparent 55%),
    radial-gradient(ellipse 40% 40% at 50% 80%, rgba(8,145,178,.12) 0%, transparent 50%);
}
#au-page .au-cta::after {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(circle 1.2px at 1px 1px, rgba(255,255,255,.18) 100%, transparent 0);
  background-size: 28px 28px;
}
#au-page .au-cta__inner { position: relative; z-index: 1; }
#au-page .au-cta .section-label {
  justify-content: center; color: rgba(167,139,250,.9);
}
#au-page .au-cta .section-label::before {
  background: linear-gradient(90deg, #a78bfa, #60a5fa);
}
#au-page .au-cta .section-heading {
  color: #fff; text-align: center; max-width: 620px; margin: 0 auto 16px;
}
#au-page .au-cta .section-heading em {
  background: linear-gradient(135deg, #a78bfa, #60a5fa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
#au-page .au-cta .section-sub {
  color: rgba(255,255,255,.62); text-align: center; margin: 0 auto 48px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SCROLL REVEAL */
[data-au-reveal] {
  opacity: 0;
  transition:
    opacity  .65s cubic-bezier(.22, 1, .36, 1),
    transform .65s cubic-bezier(.22, 1, .36, 1);
  will-change: opacity, transform;
}
[data-au-reveal="up"]    { transform: translateY(28px); }
[data-au-reveal="left"]  { transform: translateX(-28px); }
[data-au-reveal="right"] { transform: translateX(28px); }
[data-au-reveal="fade"]  { transform: none; }
[data-au-reveal].au-revealed {
  opacity: 1 !important;
  transform: none !important;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ OFFICE VIDEO */
#au-page .au-video { padding: 88px 0 24px; }
#au-page .au-video__head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
#au-page .au-video__head .section-label { justify-content: center; }
#au-page .au-video__head .section-sub { margin: 0 auto; }

#au-page .au-video__frame {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  border-radius: var(--au-r-xl);
  padding: 10px;
  background: var(--au-glass-bg-strong);
  border: 1px solid var(--au-glass-border);
  box-shadow: var(--au-glass-shadow-lg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  overflow: hidden;
}
#au-page .au-video__el {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: calc(var(--au-r-xl) - 10px);
  background: #0b1220;
}
#au-page .au-video__glow {
  position: absolute;
  inset: -40% 10% auto 10%;
  height: 60%;
  z-index: -1;
  background: radial-gradient(60% 60% at 50% 0%, rgba(26,86,219,.28), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RESPONSIVE */
@media (max-width: 900px) {
  #au-page .au-hero__card    { margin-left: 32px; width: clamp(280px, 80vw, 460px); }
  #au-page .au-team__inner   { grid-template-columns: 1fr; }
  #au-page .au-team__img-frame img { height: 380px; }
  #au-page .au-video { padding: 60px 0 16px; }
}
@media (max-width: 640px) {
  #au-page .au-hero__card        { margin: 0 20px; width: calc(100% - 40px); }
  #au-page .au-hero__badges-inner { flex-direction: column; gap: 0; }
  #au-page .au-h-badge           { padding: 14px 0; }
  #au-page .au-h-badge-divider   { display: none; }
  #au-page .container            { padding: 0 24px; }
}