/* ==========================================================================
   About Us page — modern redesign (about-modern.css)
   Matches the design language of portfolio-modern.css / contact-modern.css
   ========================================================================== */

.about {
  --ab-ink: #0a0a0a;
  --ab-muted: #3d3d3d;
  --ab-accent: #0f766e;
  --ab-accent-2: #14b8a6;
  --ab-border: #e7eaf3;
  --ab-radius: 20px;
}

/* ------------------------------ Hero ------------------------------------- */
.ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-radius: 0 0 clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 3vw, 2.5rem);
  background:
    radial-gradient(700px 340px at 12% -10%, rgba(15, 118, 110, 0.14), transparent 60%),
    radial-gradient(640px 320px at 92% 8%, rgba(20, 184, 166, 0.12), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f8f9fd 100%);
  border-bottom: 1px solid var(--ab-border);
}
.ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 24, 40, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 24, 40, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}
.ab-hero .container {
  position: relative;
  z-index: 1;
}
.ab-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(15, 118, 110, 0.25);
  background: rgba(15, 118, 110, 0.08);
  color: var(--ab-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ab-eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ab-accent), var(--ab-accent-2));
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.15);
}
.ab-hero h1 {
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--ab-ink);
  margin: 1rem 0 0;
  max-width: 22ch;
}
.ab-hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--ab-accent), var(--ab-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ab-lead {
  color: var(--ab-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 52ch;
  margin: 1.1rem 0 0;
}
.ab-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}
.ab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.ab-btn-primary {
  background: linear-gradient(135deg, var(--ab-accent), var(--ab-accent-2));
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(15, 118, 110, 0.55);
}
.ab-btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -8px rgba(15, 118, 110, 0.65);
}
.ab-btn-ghost {
  border: 1px solid var(--ab-border);
  background: #fff;
  color: var(--ab-ink);
}
.ab-btn-ghost:hover {
  color: var(--ab-accent);
  border-color: rgba(15, 118, 110, 0.35);
  transform: translateY(-2px);
}

/* Hero badge stack */
.ab-badge-stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.ab-stat {
  position: relative;
  padding: 1.25rem 1.35rem;
  border-radius: var(--ab-radius);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--ab-border);
  backdrop-filter: blur(6px);
  box-shadow: 0 10px 26px -14px rgba(16, 24, 40, 0.18);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  overflow: hidden;
}
.ab-stat::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--ab-accent), var(--ab-accent-2));
  opacity: 0;
  transition: opacity 0.22s ease;
}
.ab-stat:hover {
  transform: translateY(-5px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 22px 44px -18px rgba(16, 24, 40, 0.28);
}
.ab-stat:hover::after {
  opacity: 1;
}
.ab-stat strong {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--ab-accent), var(--ab-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ab-stat span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ab-muted);
}

/* ------------------------------ Section head ----------------------------- */
.ab-section {
  padding: clamp(2.75rem, 6vw, 4.5rem) 0;
}
.ab-head {
  max-width: 640px;
  margin-bottom: 2.25rem;
}
.ab-head .eyebrow {
  color: var(--ab-accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0;
}
.ab-head h2 {
  font-size: clamp(1.55rem, 3.2vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ab-ink);
  margin: 0.5rem 0 0;
}
.ab-head p {
  color: var(--ab-muted);
  margin: 0.7rem 0 0;
}

/* ------------------------------ Mission / Vision ------------------------- */
.ab-mv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}
.ab-mv {
  position: relative;
  padding: 1.8rem;
  border-radius: var(--ab-radius);
  background: #fff;
  border: 1px solid var(--ab-border);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.ab-mv:hover {
  transform: translateY(-5px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 24px 48px -20px rgba(16, 24, 40, 0.22);
}
.ab-mv::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.1), transparent 70%);
}
.ab-mv-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--ab-accent), var(--ab-accent-2));
  box-shadow: 0 10px 22px -8px rgba(15, 118, 110, 0.55);
  margin-bottom: 1.1rem;
}
.ab-mv--vision .ab-mv-icon {
  background: linear-gradient(135deg, var(--ab-accent-2), var(--ab-accent));
  box-shadow: 0 10px 22px -8px rgba(20, 184, 166, 0.55);
}
.ab-mv h3 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ab-ink);
  margin: 0 0 0.6rem;
}
.ab-mv p {
  color: var(--ab-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}
.ab-mv-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.45rem;
}
.ab-mv-list li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ab-muted);
  font-size: 0.88rem;
  font-weight: 600;
}
.ab-mv-list i {
  color: var(--ab-accent);
  font-size: 0.85rem;
}

/* ------------------------------ Values ----------------------------------- */
.ab-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
}
.ab-value {
  position: relative;
  padding: 1.6rem 1.5rem;
  border-radius: var(--ab-radius);
  background: #fff;
  border: 1px solid var(--ab-border);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.ab-value:hover {
  transform: translateY(-6px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 24px 48px -20px rgba(16, 24, 40, 0.22);
}
.ab-value-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 1.35rem;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.1), rgba(20, 184, 166, 0.1));
  border: 1px solid rgba(15, 118, 110, 0.15);
  margin-bottom: 1rem;
  transition: transform 0.25s ease;
}
.ab-value:hover .ab-value-icon {
  transform: scale(1.1) rotate(-4deg);
}
.ab-value h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ab-ink);
  margin: 0 0 0.45rem;
}
.ab-value p {
  color: var(--ab-muted);
  font-size: 0.88rem;
  line-height: 1.65;
  margin: 0;
}
.ab-value-num {
  position: absolute;
  top: 1.1rem;
  right: 1.25rem;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(16, 24, 40, 0.05);
  user-select: none;
}

/* ------------------------------ Timeline --------------------------------- */
.ab-timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 2.25rem;
}
.ab-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--ab-accent), var(--ab-accent-2), transparent);
  border-radius: 2px;
}
.ab-milestone {
  position: relative;
  padding: 0 0 1.9rem;
}
.ab-milestone:last-child {
  padding-bottom: 0;
}
.ab-milestone::before {
  content: "";
  position: absolute;
  left: -2.25rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--ab-accent);
  box-shadow: 0 0 0 5px rgba(15, 118, 110, 0.12);
}
.ab-milestone-year {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--ab-accent);
  background: rgba(15, 118, 110, 0.08);
  border: 1px solid rgba(15, 118, 110, 0.2);
  margin-bottom: 0.55rem;
}
.ab-milestone h3 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ab-ink);
  margin: 0 0 0.35rem;
}
.ab-milestone p {
  color: var(--ab-muted);
  font-size: 0.9rem;
  margin: 0;
  max-width: 58ch;
}

/* ------------------------------ Team ------------------------------------- */
.ab-team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.ab-member {
  padding: 1.75rem 1.4rem;
  border-radius: var(--ab-radius);
  background: #fff;
  border: 1px solid var(--ab-border);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  text-align: center;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.ab-member:hover {
  transform: translateY(-6px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 24px 48px -20px rgba(16, 24, 40, 0.22);
}
.ab-avatar {
  width: 74px;
  height: 74px;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 800;
  font-size: 1.35rem;
  color: #fff;
  background: linear-gradient(135deg, var(--ab-accent), var(--ab-accent-2));
  box-shadow: 0 12px 26px -10px rgba(15, 118, 110, 0.6);
  transition: transform 0.25s ease;
}
.ab-member:hover .ab-avatar {
  transform: scale(1.08);
}
.ab-member h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ab-ink);
  margin: 0 0 0.2rem;
}
.ab-member-role {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ab-accent);
  margin-bottom: 0.55rem;
}
.ab-member p {
  color: var(--ab-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0;
}

/* ------------------------------ CTA -------------------------------------- */
.ab-cta {
  position: relative;
  overflow: hidden;
  border-radius: clamp(1.25rem, 2.5vw, 1.75rem);
  padding: clamp(2rem, 4.5vw, 3rem);
  background:
    radial-gradient(500px 260px at 85% -20%, rgba(94, 234, 212, 0.3), transparent 60%),
    linear-gradient(135deg, #115e59, #0f766e 55%, #134e4a);
  color: #fff;
  box-shadow: 0 30px 60px -25px rgba(15, 118, 110, 0.55);
}
.ab-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at 80% 0%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 80% 0%, #000 10%, transparent 70%);
  pointer-events: none;
}
.ab-cta-body {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.ab-cta h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.4rem 0 0.4rem;
}
.ab-cta .eyebrow {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0;
}
.ab-cta p {
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  max-width: 52ch;
}
.ab-btn-light {
  padding: 0.8rem 1.7rem;
  border-radius: 12px;
  background: #fff;
  color: var(--ab-accent);
  font-weight: 800;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 14px 30px -10px rgba(0, 0, 0, 0.35);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.ab-btn-light:hover {
  color: var(--ab-accent);
  transform: translateY(-2px);
  box-shadow: 0 20px 38px -10px rgba(0, 0, 0, 0.4);
}

/* ------------------------------ Stagger animation ------------------------ */
.stagger-children > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger-children.stagger-started > * {
  opacity: 1;
  transform: translateY(0);
}
.stagger-children.stagger-started > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.stagger-started > *:nth-child(2) { transition-delay: 70ms; }
.stagger-children.stagger-started > *:nth-child(3) { transition-delay: 140ms; }
.stagger-children.stagger-started > *:nth-child(4) { transition-delay: 210ms; }
.stagger-children.stagger-started > *:nth-child(5) { transition-delay: 280ms; }
.stagger-children.stagger-started > *:nth-child(6) { transition-delay: 350ms; }

/* ------------------------------ Banded sections -------------------------- */
.ab-values-band,
.ab-team-band {
  background: linear-gradient(180deg, #f8f9fd, #f4f6fb);
  border-top: 1px solid var(--ab-border);
  border-bottom: 1px solid var(--ab-border);
}

/* NOTE: dark theme is controlled solely by [data-bs-theme="dark"] (the site
   toggle). OS-level @media (prefers-color-scheme: dark) blocks were removed:
   they duplicated the data-bs-theme rules and leaked light text onto light
   backgrounds when the OS was dark but the site was set to light. */

/* ------------------------------ Responsive ------------------------------- */
@media (max-width: 767.98px) {
  .about .ab-mv-grid {
    grid-template-columns: 1fr;
  }
  .about .ab-badge-stack {
    gap: 0.75rem;
  }
  .about .ab-timeline {
    padding-left: 1.9rem;
  }
  .about .ab-milestone::before {
    left: -1.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .about .ab-stat,
  .about .ab-mv,
  .about .ab-value,
  .about .ab-member,
  .about .ab-btn,
  .about .stagger-children > * {
    transition: none !important;
    transform: none !important;
  }
}

/* ------------------------------ Dark mode --------------------------------- */
[data-bs-theme="dark"] .about {
  --ab-ink: #ffffff;
  --ab-muted: #c9c9c9;
  --ab-border: rgba(255, 255, 255, 0.14);
  --ab-accent: #5eead4;
  --ab-accent-2: #2dd4bf;
}

[data-bs-theme="dark"] .ab-hero {
  background:
    radial-gradient(700px 340px at 12% -10%, rgba(94, 234, 212, 0.18), transparent 60%),
    radial-gradient(640px 320px at 92% 8%, rgba(20, 184, 166, 0.14), transparent 60%),
    linear-gradient(180deg, #111111 0%, #0a0a0a 100%);
  border-bottom-color: var(--ab-border);
}

[data-bs-theme="dark"] .ab-mv,
[data-bs-theme="dark"] .ab-value,
[data-bs-theme="dark"] .ab-member,
[data-bs-theme="dark"] .ab-stat {
  background: #141414;
  border-color: var(--ab-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

[data-bs-theme="dark"] .ab-mv::before,
[data-bs-theme="dark"] .ab-value::before,
[data-bs-theme="dark"] .ab-value-num {
  background: #0a0a0a;
}

[data-bs-theme="dark"] .ab-milestone::before {
  background: #0a0a0a;
}

[data-bs-theme="dark"] .about ~ .site-footer,
[data-bs-theme="dark"] .about ~ .app-footer {
  background: #0a0a0a;
  border-top-color: var(--ab-border);
  color: var(--ab-muted);
}

[data-bs-theme="dark"] .about ~ .site-footer a,
[data-bs-theme="dark"] .about ~ .app-footer a {
  color: var(--ab-muted);
}

[data-bs-theme="dark"] .about ~ .site-footer a:hover,
[data-bs-theme="dark"] .about ~ .app-footer a:hover {
  color: var(--ab-ink);
}

[data-bs-theme="dark"] .about ~ .site-footer .brand-copy,
[data-bs-theme="dark"] .about ~ .site-footer .footer-copy,
[data-bs-theme="dark"] .about ~ .site-footer .contact-info,
[data-bs-theme="dark"] .about ~ .site-footer small,
[data-bs-theme="dark"] .about ~ .app-footer small {
  color: var(--ab-muted);
}

[data-bs-theme="dark"] .about ~ .site-footer .btn-outline-secondary {
  --bs-btn-color: var(--ab-muted);
  --bs-btn-border-color: var(--ab-border);
  --bs-btn-hover-bg: #141414;
  --bs-btn-hover-color: var(--ab-ink);
}