/* ============================================================
   abthero01 — /about01 hero
   Palette: #864ffe purple / #83e7ee cyan / #c6f56f lime / #13171e ink
   Breakpoints: 640 / 768 / 1024 / 1280
   ============================================================ */

section.abthero01 {
  --abt-purple: #864ffe;
  --abt-purple-ink: #6c33e8;
  --abt-cyan: #83e7ee;
  --abt-lime: #c6f56f;
  --abt-ink: #13171e;
  --abt-fg: #f7f6fb;
  --abt-muted: rgba(247, 246, 251, 0.68);
  --abt-line: rgba(255, 255, 255, 0.14);
  padding: 7rem var(--page-pad) var(--section-y);
  background:
    radial-gradient(56rem 30rem at 86% 2%, rgba(134, 79, 254, 0.42), transparent 62%),
    radial-gradient(42rem 26rem at 2% 96%, rgba(131, 231, 238, 0.16), transparent 66%),
    var(--abt-ink);
  color: var(--abt-fg);
  overflow: hidden;
}

.abthero01 .abthero01__inner {
  display: grid;
  gap: var(--space-6);
  align-items: center;
  max-width: var(--content-max);
  margin-inline: auto;
}

.abthero01 .abthero01__copy {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
}

.abthero01 .abthero01__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  margin: 0 0 var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(134, 79, 254, 0.2);
  border: 1px solid rgba(131, 231, 238, 0.42);
  border-radius: var(--radius-pill);
  color: var(--abt-cyan);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.7;
}

.abthero01 .abthero01__badge::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--radius-pill);
  background: var(--abt-lime);
  box-shadow: 0 0 0 3px rgba(198, 245, 111, 0.18);
}

.abthero01 .abthero01__title {
  margin: 0;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.abthero01 .abthero01__title em {
  font-style: normal;
  color: var(--abt-cyan);
}

.abthero01 .abthero01__lead {
  max-width: 40rem;
  margin: 0;
  color: var(--abt-muted);
  font-size: 1.0625rem;
  line-height: var(--lh-body);
}

.abthero01 .abthero01__lead--soft {
  font-size: 0.9375rem;
  color: rgba(247, 246, 251, 0.55);
}

.abthero01 .abthero01__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-2) 0 0;
}

.abthero01 .abthero01__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: var(--btn-pad);
  background: linear-gradient(135deg, #8f5bff 0%, #6c33e8 100%);
  color: #ffffff;
  border-radius: var(--btn-radius);
  font-weight: 500;
  box-shadow: 0 10px 26px rgba(110, 52, 232, 0.35);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.abthero01 .abthero01__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(110, 52, 232, 0.48);
}

.abthero01 .abthero01__btn--ghost {
  background: transparent;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  color: var(--abt-fg);
}

.abthero01 .abthero01__btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(131, 231, 238, 0.6);
}

.abthero01 .abthero01__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--abt-muted);
}

.abthero01 .abthero01__facts li {
  position: relative;
  padding-left: 1.125rem;
  line-height: 1.6;
}

.abthero01 .abthero01__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: var(--radius-pill);
  background: var(--abt-cyan);
}

.abthero01 .abthero01__facts li:nth-child(2)::before {
  background: var(--abt-lime);
}

.abthero01 .abthero01__facts li:nth-child(3)::before {
  background: var(--abt-purple);
}

/* ---------- work equation panel ---------- */

.abthero01 .abthero01__panel {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
  padding: var(--space-4);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035));
  border: 1px solid var(--abt-line);
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(6, 8, 14, 0.45);
}

.abthero01 .abthero01__stage {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(10, 13, 19, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
}

.abthero01 .abthero01__stage--next {
  background: linear-gradient(160deg, rgba(134, 79, 254, 0.22), rgba(10, 13, 19, 0.6));
  border-color: rgba(131, 231, 238, 0.28);
}

.abthero01 .abthero01__stage-label {
  margin: 0;
  color: var(--abt-cyan);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.6;
}

.abthero01 .abthero01__stage--next .abthero01__stage-label {
  color: var(--abt-lime);
}

.abthero01 .abthero01__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.abthero01 .abthero01__sum li {
  position: relative;
  padding: 0.375rem var(--space-3);
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  color: #ffffff;
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: nowrap;
}

.abthero01 .abthero01__sum li + li::before {
  content: "+";
  position: absolute;
  left: calc(-1 * var(--space-3));
  top: 50%;
  width: var(--space-3);
  transform: translateY(-50%);
  color: rgba(247, 246, 251, 0.5);
  font-size: 0.8125rem;
  text-align: center;
}

.abthero01 .abthero01__sum--old li {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(247, 246, 251, 0.72);
}

.abthero01 .abthero01__tag--ai {
  background: rgba(134, 79, 254, 0.3);
  color: #e4d9ff;
  font-weight: 500;
}

.abthero01 .abthero01__tag--sys {
  background: rgba(131, 231, 238, 0.2);
  color: #d5f8fb;
  font-weight: 500;
}

.abthero01 .abthero01__stage-note {
  margin: 0;
  color: var(--abt-muted);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.abthero01 .abthero01__arrow {
  margin: 0;
  color: var(--abt-cyan);
  font-size: 1.125rem;
  line-height: 1;
  text-align: center;
}

/* ---------- 640+ ---------- */

@media (min-width: 640px) {
  .abthero01 .abthero01__title {
    font-size: 2.25rem;
  }
}

/* ---------- 768+ ---------- */

@media (min-width: 768px) {
  .abthero01 .abthero01__title {
    font-size: 2.5rem;
  }

  .abthero01 .abthero01__panel {
    padding: var(--space-5);
  }
}

/* ---------- 1024+ ---------- */

@media (min-width: 1024px) {
  section.abthero01 {
    padding: 8.5rem var(--page-pad) var(--section-y);
  }

  .abthero01 .abthero01__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: var(--space-6);
  }

  .abthero01 .abthero01__title {
    font-size: 3.25rem;
  }
}

/* ---------- 1280+ ---------- */

@media (min-width: 1280px) {
  .abthero01 .abthero01__inner {
    gap: 4.5rem;
  }

  .abthero01 .abthero01__title {
    font-size: 3.5rem;
  }
}