:root {
  --about-bg: #090909;
  --about-surface: #111111;
  --about-surface-soft: #0d0d0d;
  --about-border: #262626;
  --about-border-hover: #4a7cff;
  --about-text: #ffffff;
  --about-muted: #bdbdbd;
  --about-subtle: #7e7e7e;
  --about-accent: #4a7cff;
  --about-container: 1120px;
  --about-radius: 18px;
}

html {
  scroll-behavior: smooth;
}

body.about-alif-page {
  background: var(--about-bg);
}

.about-page {
  width: 100%;
  min-height: 100vh;
  overflow: clip;
  background:
    radial-gradient(circle at 80% 8%, rgba(74, 124, 255, 0.08), transparent 28rem),
    var(--about-bg);
  color: var(--about-text);
  font-family: "Poppins", sans-serif;
  line-height: 1.8;
}

.about-page *,
.about-page *::before,
.about-page *::after {
  box-sizing: border-box;
}

.about-page button,
.about-page a {
  font: inherit;
}

.about-page h1,
.about-page h2,
.about-page h3,
.about-page p,
.about-page blockquote {
  color: inherit;
}

.about-container {
  width: min(var(--about-container), 92%);
  margin-inline: auto;
}

.about-section {
  padding: 96px 0;
  scroll-margin-top: 80px;
}

.about-section + .about-section {
  border-top: 1px solid #171717;
}

.about-label {
  color: var(--about-subtle);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.about-heading {
  max-width: 920px;
  margin: 12px 0 40px;
  color: var(--about-text);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.about-copy {
  margin: 0;
  color: var(--about-muted) !important;
}

/* Button */
.about-button {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 34px;
  padding: 0 25px;
  overflow: hidden;
  border: 1px solid #3158a9;
  border-radius: 999px;
  background: transparent;
  color: var(--about-text) !important;
  text-decoration: none !important;
  opacity: 1;
  box-shadow: none;
  transition:
    border-color 0.25s ease,
    transform 0.25s ease;
}

.about-button::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--about-accent);
  content: "";
  transform: translateX(-101%);
  transition: transform 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.about-button:hover,
.about-button:focus-visible {
  border-color: var(--about-accent);
  color: #ffffff !important;
  transform: translateY(-2px);
}

.about-button:hover::before,
.about-button:focus-visible::before {
  transform: translateX(0);
}

.about-button:focus-visible,
.about-work-step:focus-visible {
  outline: 2px solid #8caaff;
  outline-offset: 4px;
}

.about-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
  transition: transform 0.25s ease;
}

.about-button:hover svg {
  transform: translateX(4px);
}

/* Hero */
.about-hero {
  display: flex;
  min-height: 92vh;
  align-items: center;
  padding: 110px 0 80px;
}

.about-hero__content {
  max-width: 960px;
}

.about-hero__title {
  max-width: 1020px;
  margin: 18px 0 24px;
  color: var(--about-text);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.about-hero__description {
  max-width: 760px;
  margin: 0;
  color: var(--about-muted) !important;
  font-size: clamp(1rem, 1.5vw, 1.12rem);
}

/* Timeline */
.about-timeline {
  margin-left: 10px;
  padding-left: 36px;
  border-left: 2px solid #262626;
}

.about-timeline__item {
  position: relative;
  padding-bottom: 52px;
}

.about-timeline__item:last-child {
  padding-bottom: 0;
}

.about-timeline__item::before {
  position: absolute;
  top: 8px;
  left: -44px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-accent);
  box-shadow: 0 0 0 7px rgba(74, 124, 255, 0.1);
  content: "";
}

.about-timeline__year {
  margin-bottom: 8px;
  color: #7aa3ff;
  font-weight: 600;
}

/* Philosophy */
.about-quote {
  max-width: 1040px;
  margin: 0;
  color: var(--about-text);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.05em;
}

.about-quote-copy {
  max-width: 780px;
  margin-top: 24px;
}

/* Cards */
.about-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.about-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--about-border);
  border-radius: var(--about-radius);
  background: var(--about-surface);
  color: var(--about-text);
  transition:
    border-color 0.3s ease,
    transform 0.3s ease,
    background 0.3s ease;
}

.about-card:hover {
  border-color: var(--about-border-hover);
  background: #131313;
  transform: translateY(-6px);
}

/* Cara kerja */
.about-work-layout {
  display: grid;
  gap: 24px;
}

.about-work-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.about-work-step {
  position: relative;
  min-height: 156px;
  padding: 22px 18px;
  border: 1px solid var(--about-border);
  border-radius: 16px;
  background: var(--about-surface);
  color: var(--about-text);
  text-align: left;
  cursor: pointer;
  box-shadow: none;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

.about-work-step:hover {
  border-color: #365eaf;
  transform: translateY(-4px);
}

.about-work-step[aria-selected="true"] {
  border-color: var(--about-accent);
  background:
    linear-gradient(180deg, rgba(74, 124, 255, 0.15), rgba(74, 124, 255, 0.04)),
    var(--about-surface);
}

.about-work-step__number {
  display: block;
  margin-bottom: 22px;
  color: #7aa3ff;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.about-work-step__title {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.45;
}

.about-work-step__arrow {
  position: absolute;
  right: 16px;
  bottom: 14px;
  color: #7e7e7e;
  font-size: 1.1rem;
  transition:
    color 0.2s ease,
    transform 0.2s ease;
}

.about-work-step[aria-selected="true"] .about-work-step__arrow {
  color: #8caaff;
  transform: translateX(3px);
}

.about-work-detail-wrap {
  position: relative;
  min-height: 245px;
  padding: 32px;
  border: 1px solid #2b2b2b;
  border-radius: 20px;
  background:
    radial-gradient(circle at 95% 15%, rgba(74, 124, 255, 0.12), transparent 18rem),
    var(--about-surface-soft);
}

.about-work-detail {
  display: none;
  animation: about-detail-in 0.35s ease both;
}

.about-work-detail.is-active {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 42px;
}

.about-work-detail__label {
  color: #7aa3ff;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.about-work-detail h3 {
  margin: 9px 0 0;
  color: var(--about-text);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.035em;
}

.about-work-detail p {
  margin: 0;
  color: var(--about-muted) !important;
}

.about-work-detail ul {
  display: grid;
  gap: 9px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.about-work-detail li {
  position: relative;
  padding-left: 22px;
  color: #d0d0d0;
  font-size: 0.92rem;
}

.about-work-detail li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--about-accent);
  content: "";
}

@keyframes about-detail-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* Expertise */
.about-expertise-card {
  display: flex;
  min-height: 96px;
  align-items: center;
  font-weight: 600;
}

/* Tools */
.about-tools-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
}

.about-tool-card {
  display: grid;
  min-height: 60px;
  place-items: center;
  padding: 14px 18px;
  border: 1px solid #292929;
  border-radius: 14px;
  background: #111111;
  color: var(--about-text);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

.about-tool-card:hover {
  border-color: var(--about-accent);
  background: #141414;
  transform: translateY(-4px);
}

/* CTA bawah */
.about-footer {
  padding: 100px 0;
  border-top: 1px solid #1d1d1d;
  text-align: center;
}

.about-footer__inner {
  max-width: 920px;
  margin-inline: auto;
}

.about-footer__title {
  margin: 0;
  color: var(--about-text);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.045em;
}

.about-footer__copy {
  max-width: 760px;
  margin: 28px auto 0;
  color: var(--about-muted) !important;
}

.about-footer .about-button {
  min-width: 215px;
  margin-top: 34px;
}

/* Reveal */
.about-reveal {
  opacity: 0;
  transform: translateY(38px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

.about-reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1000px) {
  .about-work-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-tools-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .about-section {
    padding: 76px 0;
  }

  .about-hero {
    min-height: auto;
    padding: 105px 0 74px;
  }

  .about-work-steps {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding: 2px 2px 10px;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
  }

  .about-work-step {
    min-width: min(76vw, 260px);
    scroll-snap-align: start;
  }

  .about-work-detail.is-active {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .about-work-detail-wrap {
    min-height: 330px;
    padding: 26px 22px;
  }

  .about-tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .about-container {
    width: min(var(--about-container), calc(100% - 32px));
  }

  .about-hero__title {
    font-size: clamp(2.35rem, 13vw, 3.3rem);
  }

  .about-heading {
    margin-bottom: 30px;
  }

  .about-card-grid,
  .about-tools-grid {
    grid-template-columns: 1fr;
  }

  .about-footer {
    padding: 82px 0;
  }

  .about-footer .about-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .about-page *,
  .about-page *::before,
  .about-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .about-reveal {
    opacity: 1;
    transform: none;
  }
}