:root {
  --ink: #17201f;
  --muted: #68716d;
  --paper: #f3f0e9;
  --panel: #e5ece7;
  --accent: #dd573d;
  --line: rgba(23, 32, 31, 0.16);
  --mono: 'Courier New', monospace;
  --sans: 'Trebuchet MS', 'Malgun Gothic', sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.06em;
}

.brand span,
.contact-section h2 span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 28px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.nav-links a:hover,
.text-link:hover {
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: 1fr 0.62fr;
  min-height: 590px;
  align-items: center;
  gap: 40px;
  padding: 75px 0 84px;
}

.eyebrow,
.section-label,
.contact-type {
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 1px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin: 27px 0 25px;
  font-size: clamp(3.2rem, 8vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.085em;
  font-weight: 600;
}

h1 em {
  color: var(--accent);
  font-style: normal;
}

.intro {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 15px 19px;
  font-size: 0.82rem;
  font-weight: 700;
}

.button-primary {
  color: var(--paper);
  background: var(--ink);
}

.button-primary:hover {
  background: var(--accent);
}

.text-link {
  color: var(--muted);
  font-size: 0.82rem;
}

.text-link span {
  margin-left: 8px;
  color: var(--accent);
}

.hero-mark {
  position: relative;
  width: min(330px, 100%);
  aspect-ratio: 1;
  justify-self: end;
  border: 1px solid var(--line);
  background: var(--panel);
  transform: rotate(4deg);
}

.hero-mark::before,
.hero-mark::after {
  position: absolute;
  content: '';
  inset: 13%;
  border: 1px solid var(--line);
}

.hero-mark::after {
  inset: 25%;
  background: var(--accent);
  border: 0;
  opacity: 0.9;
}

.mark-line {
  position: absolute;
  z-index: 1;
  display: block;
  width: 145%;
  height: 1px;
  background: var(--ink);
  opacity: 0.65;
  transform: rotate(-44deg);
}

.line-one { top: 28%; left: -20%; }
.line-two { top: 69%; left: -22%; }

.mark-core {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 1rem;
  transform: translate(-50%, -50%) rotate(-4deg);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.info-panel {
  padding: 54px 0 58px;
}

.about-panel {
  padding-right: 13%;
  border-right: 1px solid var(--line);
}

.detail-panel {
  padding-left: 13%;
}

.info-panel h2 {
  margin: 24px 0 20px;
  font-size: clamp(1.8rem, 4vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.075em;
  font-weight: 500;
}

.info-panel h2 strong {
  font-weight: 700;
}

.info-panel p:last-child {
  max-width: 420px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.85;
}

.detail-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.7;
}

.detail-row:first-child { padding-top: 0; }
.detail-row:last-child { border-bottom: 0; }

.detail-label {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.talk-section {
  padding: 70px 0 0;
}

.talk-card {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding: 38px 40px;
  color: var(--paper);
  background: var(--ink);
  transition: background 180ms ease;
}

.talk-card:hover { background: #222d2b; }

.talk-meta {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.talk-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.07em;
  word-break: keep-all;
}

.talk-title em {
  color: var(--accent);
  font-style: normal;
}

.talk-desc {
  max-width: 640px;
  color: #b9c1bd;
  font-size: 0.9rem;
  line-height: 1.8;
  word-break: keep-all;
}

.talk-go {
  justify-self: start;
  margin-top: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.talk-go span {
  display: inline-block;
  margin-left: 6px;
  color: var(--accent);
  transition: transform 180ms ease;
}

.talk-card:hover .talk-go span { transform: translate(3px, -3px); }

.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 100px 0 110px;
}

.contact-section h2 {
  margin: 24px 0 0;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.085em;
  font-weight: 600;
}

.contact-links {
  align-self: end;
}

.contact-link {
  display: grid;
  grid-template-columns: 78px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.contact-link:first-child {
  border-top: 1px solid var(--line);
}

.contact-link:hover .arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

.arrow {
  transition: transform 180ms ease;
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 20px 0 30px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
}

@media (max-width: 700px) {
  .page-shell { width: min(100% - 32px, 560px); }
  .topbar { padding: 22px 0; }
  .nav-links { gap: 14px; font-size: 0.6rem; }
  .hero { display: block; min-height: auto; padding: 76px 0 82px; }
  h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .hero-mark { width: 190px; margin: 62px 8px 0 auto; }
  .info-grid,
  .contact-section { grid-template-columns: 1fr; }
  .about-panel { padding-right: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .detail-panel { padding-left: 0; }
  .contact-section { gap: 55px; padding: 78px 0 88px; }
  .talk-section { padding-top: 56px; }
  .talk-card { padding: 28px 22px; }
  footer { gap: 20px; line-height: 1.5; }
}