/* ============================================================
   ABOUT + CONTACT — shared page extras
   ============================================================ */

/* ============== ABOUT ============== */
.a-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
  padding-top: clamp(10px, 2vh, 30px);
}
.a-hero .page-hero { padding-bottom: 0; }

.a-hero-visual {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid oklch(0.75 0.07 var(--gold-h) / 0.3);
  box-shadow:
    0 50px 90px -34px rgba(0, 0, 0, 0.95),
    0 0 calc(54px * var(--glow)) oklch(0.7 0.1 var(--gold-h) / 0.14),
    inset 0 1px 0 oklch(0.9 0.06 var(--gold-h) / 0.2);
  transform: perspective(1500px) rotateY(-5deg);
  transition: transform 0.6s cubic-bezier(.2,.8,.2,1);
}
.a-hero-visual:hover { transform: perspective(1500px) rotateY(0deg) translateY(-4px); }
.a-hero-visual img { width: 100%; display: block; aspect-ratio: 16 / 10.4; object-fit: cover; }
.a-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, oklch(0.95 0.04 var(--gold-h) / 0.07), transparent 38%);
  pointer-events: none;
}

/* operator card: photo slot + bio */
.operator {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(26px, 3.4vw, 48px);
  border-radius: var(--radius-card);
}
.operator .photo-frame {
  position: relative;
  border-radius: 18px;
  padding: 10px;
  border: 1px solid transparent;
  background:
    var(--metal-face) padding-box,
    var(--metal-edge) border-box;
  box-shadow: var(--shadow-card), inset 0 1px 0 oklch(0.92 0.06 var(--gold-h) / 0.2);
}
.operator .operator-photo {
  display: block;
  width: 100%;
  height: 340px;
  object-fit: cover;
  object-position: 50% 42%;
  border-radius: 12px;
}
.operator .ph-caption {
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 12px 0 4px;
}
.operator h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.06;
  color: var(--text);
  margin-bottom: 16px;
  text-wrap: balance;
}
.operator .op-bio { font-size: 15.5px; line-height: 1.7; color: var(--text-dim); max-width: 560px; }
.operator .op-bio + .op-bio { margin-top: 14px; }
.operator .op-stats { display: flex; gap: clamp(20px, 3vw, 44px); flex-wrap: wrap; margin-top: 26px; }
.op-stat .os-val {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  color: var(--gold-bright);
  line-height: 1;
  text-shadow: 0 0 calc(18px * var(--glow)) oklch(0.8 0.12 var(--gold-h) / 0.45);
}
.op-stat .os-lab { font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); margin-top: 7px; }

/* principles */
.principles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  perspective: 1600px;
}
.principle {
  padding: 26px 22px 24px;
  border-radius: var(--radius-card);
  transform-style: preserve-3d;
  transform: rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transition: transform 0.55s cubic-bezier(.2,.8,.2,1), box-shadow 0.4s ease;
}
.principle:hover {
  box-shadow:
    var(--shadow-card),
    0 0 calc(34px * var(--glow)) oklch(0.7 0.1 var(--gold-h) / 0.24),
    inset 0 1px 0 oklch(0.92 0.06 var(--gold-h) / 0.26);
}
.principle .pr-num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--gold-soft);
  margin-bottom: 38px;
}
.principle h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 9px;
}
.principle p { font-size: 13.5px; line-height: 1.55; color: var(--text-dim); }

/* lab note */
.lab-note {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(30px, 4vw, 52px);
  border-radius: var(--radius-card);
}
.lab-note .ln-label { font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 16px; }
.lab-note blockquote {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.4;
  color: var(--text);
  text-wrap: balance;
}
.lab-note blockquote .accent {
  background: linear-gradient(115deg, var(--gold-bright), var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============== CONTACT ============== */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(20px, 2.6vw, 32px);
  align-items: start;
  margin-top: clamp(10px, 2vh, 26px);
}

.c-form { padding: clamp(26px, 3.2vw, 42px); border-radius: var(--radius-card); }
.c-form .cf-label { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 22px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.f-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.f-field label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-faint); }
.f-field input,
.f-field select,
.f-field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid oklch(0.7 0.06 var(--gold-h) / 0.22);
  background: oklch(0.1 0.01 var(--gold-h) / 0.6);
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.f-field select { appearance: none; cursor: pointer; }
.f-field textarea { resize: vertical; min-height: 120px; }
.f-field input:focus,
.f-field select:focus,
.f-field textarea:focus {
  border-color: oklch(0.85 0.09 var(--gold-h) / 0.7);
  box-shadow: 0 0 calc(20px * var(--glow)) oklch(0.78 0.09 var(--gold-h) / 0.2);
}
.f-field select option { background: #14110b; color: var(--text); }
.c-form .form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 8px; flex-wrap: wrap; }
.c-form .form-note { font-size: 12.5px; color: var(--text-faint); }

.c-side { display: flex; flex-direction: column; gap: 18px; }
.book-card {
  position: relative;
  padding: clamp(26px, 3vw, 36px);
  border-radius: var(--radius-card);
  overflow: hidden;
  background:
    linear-gradient(180deg, oklch(0.12 0.012 var(--gold-h) / 0.5), oklch(0.09 0.01 var(--gold-h) / 0.85)),
    url("../assets/bg-cta.jpg") center / cover no-repeat;
  border: 1px solid transparent;
  box-shadow: var(--shadow-card), inset 0 1px 0 oklch(0.9 0.06 var(--gold-h) / 0.16);
}
.book-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--metal-edge);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.book-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  color: var(--text);
  margin-bottom: 10px;
}
.book-card p { font-size: 14px; line-height: 1.6; color: var(--text-dim); margin-bottom: 22px; }
.book-card .cal-slot {
  border: 1px dashed oklch(0.75 0.08 var(--gold-h) / 0.4);
  border-radius: 14px;
  padding: 22px;
  text-align: center;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 20px;
  background: repeating-linear-gradient(135deg, oklch(0.5 0.04 var(--gold-h) / 0.04) 0 10px, transparent 10px 20px);
}

.direct-card { padding: 24px 26px; border-radius: var(--radius-card); }
.direct-card .dc-label { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 16px; }
.direct-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  text-decoration: none;
  border-bottom: 1px solid oklch(0.7 0.06 var(--gold-h) / 0.12);
  transition: translate 0.3s ease;
}
.direct-row:last-child { border-bottom: none; }
.direct-row:hover { translate: 4px 0; }
.direct-row .di {
  width: 40px; height: 40px;
  flex: none;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  border: 1px solid oklch(0.78 0.08 var(--gold-h) / 0.35);
  background: oklch(0.78 0.09 var(--gold-h) / 0.06);
}
.direct-row .di svg { width: 18px; height: 18px; }
.direct-row .dt { font-size: 14.5px; font-weight: 600; color: var(--text-soft); }
.direct-row .ds { font-size: 12px; color: var(--text-faint); margin-top: 2px; }
.direct-row:hover .dt { color: var(--gold-bright); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .a-hero { grid-template-columns: 1fr; gap: 18px; }
  .a-hero-visual { transform: none; order: -1; }
  .operator { grid-template-columns: 1fr; gap: 24px; }
  .operator .photo-frame { max-width: 320px; margin: 0 auto; }
  .principles { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 560px) {
  .principles { grid-template-columns: 1fr; }
}