:root {
 --ink: #111827;
 --slate: #223140;
 --muted: #667485;
 --line: #dbe2ea;
 --paper: #ffffff;
 --mist: #f3f6f8;
 --navy: #0d2f4b;
 --navy-2: #164b73;
 --gold: #b88746;
 --gold-soft: #f0e3cf;
 --shadow: 0 24px 70px rgba(13, 47, 75, 0.13);
 --radius-xl: 30px;
 --radius-lg: 22px;
 --max-width: 1180px;
}

* {
box-sizing: border-box;
}

html {
scroll-behavior: smooth;
}

body {
margin: 0;
font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
color: var(--ink);
background:
radial-gradient(circle at 82% 0%, rgba(184, 135, 70, 0.12), transparent 32%),
linear-gradient(180deg, #fbfcfd 0%, var(--mist) 100%);
line-height: 1.62;
}

a {
color: var(--navy-2);
text-decoration: none;
}

a:hover {
text-decoration: underline;
}

.site-header {
position: sticky;
top: 0;
z-index: 100;
display: flex;
align-items: center;
justify-content: space-between;
gap: 28px;
padding: 18px clamp(20px, 4vw, 58px);
background: rgba(251, 252, 253, 0.88);
border-bottom: 1px solid rgba(219, 226, 234, 0.85);
backdrop-filter: blur(18px);
}

.brand {
display: flex;
align-items: center;
gap: 14px;
color: var(--ink);
text-decoration: none;
}

.brand-symbol {
width: 46px;
height: 46px;
display: grid;
place-items: center;
border-radius: 16px;
background: linear-gradient(135deg, var(--navy), var(--navy-2));
color: white;
font-weight: 850;
letter-spacing: -0.04em;
box-shadow: 0 10px 24px rgba(13, 47, 75, 0.22);
}

.brand-copy {
display: grid;
line-height: 1.18;
}

.brand-copy strong {
font-size: 1rem;
letter-spacing: -0.02em;
}

.brand-copy small {
color: var(--muted);
font-size: 0.78rem;
}

.nav {
display: flex;
align-items: center;
gap: 22px;
font-size: 0.94rem;
font-weight: 650;
}

.nav a,
.nav summary {
color: var(--slate);
cursor: pointer;
list-style: none;
}

.nav summary::-webkit-details-marker {
display: none;
}

.nav details {
position: relative;
}

.submenu {
position: absolute;
top: 34px;
right: 0;
min-width: 170px;
padding: 10px;
display: grid;
gap: 4px;
background: var(--paper);
border: 1px solid var(--line);
border-radius: 16px;
box-shadow: var(--shadow);
}

.submenu a {
padding: 9px 10px;
border-radius: 10px;
}

.submenu a:hover {
background: var(--mist);
text-decoration: none;
}

.menu-toggle,
.menu-button {
display: none;
}

.hero {
max-width: var(--max-width);
margin: 0 auto;
padding: clamp(72px, 9vw, 138px) clamp(20px, 4vw, 40px) clamp(58px, 8vw, 104px);
display: grid;
grid-template-columns: minmax(0, 1.26fr) minmax(320px, 0.74fr);
gap: clamp(34px, 6vw, 84px);
align-items: center;
}

.kicker {
margin: 0 0 14px;
color: var(--gold);
font-size: 0.76rem;
font-weight: 850;
letter-spacing: 0.14em;
text-transform: uppercase;
}

h1,
h2,
h3 {
margin-top: 0;
line-height: 1.12;
letter-spacing: -0.045em;
}

h1 {
margin-bottom: 26px;
font-size: clamp(2.55rem, 6.5vw, 5.6rem);
max-width: 940px;
}

h2 {
margin-bottom: 18px;
font-size: clamp(1.95rem, 3.7vw, 3.35rem);
}

h3 {
font-size: 1.28rem;
}

.lead {
max-width: 780px;
color: var(--muted);
font-size: clamp(1.08rem, 2vw, 1.38rem);
}

.hero-actions {
display: flex;
flex-wrap: wrap;
gap: 14px;
margin-top: 34px;
}

.button {
display: inline-flex;
align-items: center;
justify-content: center;
min-height: 50px;
padding: 14px 22px;
border-radius: 999px;
font-weight: 780;
text-decoration: none;
}

.button:hover {
text-decoration: none;
}

.button-primary {
background: var(--navy);
color: white;
box-shadow: 0 16px 30px rgba(13, 47, 75, 0.18);
}

.button-primary:hover {
background: #09253c;
}

.button-secondary {
background: rgba(255, 255, 255, 0.78);
color: var(--slate);
border: 1px solid var(--line);
}

.signature-card {
padding: 34px;
border-radius: var(--radius-xl);
background:
  linear-gradient(155deg, rgba(255,255,255,0.12), transparent 38%),
  linear-gradient(145deg, var(--navy), #123b5c 55%, #0a2439);
color: white;
box-shadow: var(--shadow);
overflow: hidden;
position: relative;
}

.signature-card::after {
content: "";
position: absolute;
width: 220px;
height: 220px;
right: -80px;
bottom: -80px;
border-radius: 50%;
background: rgba(184, 135, 70, 0.26);
}

.card-label {
color: var(--gold-soft);
margin: 0 0 12px;
text-transform: uppercase;
font-size: 0.75rem;
letter-spacing: 0.16em;
font-weight: 850;
}

.signature-card h2 {
font-size: clamp(1.65rem, 3vw, 2.35rem);
}

.signature-card p {
color: rgba(255,255,255,0.78);
}

.metric-row {
position: relative;
z-index: 1;
margin-top: 28px;
display: grid;
gap: 12px;
}

.metric-row div {
padding: 16px 0;
border-top: 1px solid rgba(255,255,255,0.18);
display: flex;
align-items: baseline;
gap: 14px;
}

.metric-row strong {
color: var(--gold-soft);
font-size: 1.15rem;
}

.metric-row span {
color: white;
font-weight: 740;
}

.section {
max-width: var(--max-width);
margin: 0 auto;
padding: clamp(56px, 7vw, 94px) clamp(20px, 4vw, 40px);
}

.split {
display: grid;
grid-template-columns: 0.88fr 1.12fr;
gap: clamp(30px, 5vw, 70px);
border-top: 1px solid var(--line);
}

.rich-text {
color: var(--muted);
font-size: 1.06rem;
}

.section-heading {
max-width: 820px;
margin-bottom: 36px;
}

.section-heading p {
color: var(--muted);
}

.service-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 18px;
}

.service-card {
min-height: auto;
padding: 28px;
border: 1px solid var(--line);
border-radius: var(--radius-lg);
background: rgba(255,255,255,0.76);
box-shadow: 0 10px 34px rgba(13, 47, 75, 0.06);
}

.service-card span {
display: inline-grid;
place-items: center;
width: 42px;
height: 42px;
margin-bottom: 20px;
border-radius: 14px;
background: var(--mist);
color: var(--navy);
font-weight: 850;
}

.service-card h3 {
margin-bottom: 12px;
}

.service-card p {
color: var(--muted);
}

.service-card ul {
margin: 18px 0 0;
padding-left: 19px;
}

.service-card li + li {
margin-top: 7px;
}

.service-card.highlight {
background:
  linear-gradient(155deg, rgba(184, 135, 70, 0.15), transparent 42%),
  var(--paper);
border-color: rgba(184, 135, 70, 0.36);
}

.audience-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 14px;
}

.audience-grid div {
padding: 20px;
border-radius: 18px;
background: var(--paper);
border: 1px solid var(--line);
color: var(--slate);
font-weight: 780;
}

.method-panel {
padding: clamp(32px, 5vw, 58px);
border-radius: var(--radius-xl);
background: var(--navy);
color: white;
box-shadow: var(--shadow);
}

.method-panel h2 {
max-width: 760px;
}

.method-grid {
margin-top: 34px;
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 18px;
}

.method-grid div {
padding-top: 20px;
border-top: 1px solid rgba(255,255,255,0.2);
}

.method-grid h3 {
letter-spacing: -0.03em;
}

.method-grid p {
color:rgba(255, 255, 255, 0.72);
}

.profile {
display: grid;
grid-template-columns: minmax(240px, 0.45fr) 1fr;
gap: clamp(30px, 5vw, 70px);
align-items: center;
}

.profile p {
color: var(--muted);
}

.portrait {
width: 100%;
min-height: 460px;
border-radius: var(--radius-xl);
border: 1px solid var(--line);
object-fit: cover;
display: block;
}

.visual-language {
display: grid;
grid-template-columns: 0.7fr 1.3fr;
gap: 34px;
border-top: 1px solid var(--line);
}

.design-notes {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 14px;
}

.design-notes div {
padding: 22px;
border-radius: 18px;
background: var(--paper);
border: 1px solid var(--line);
}

.design-notes strong,
.design-notes span {
display: block;
}

.design-notes span {
margin-top: 8px;
color: var(--muted);
}

.contact {
display: grid;
grid-template-columns: 1fr 0.72fr;
gap: 34px;
align-items: start;
}

.contact p {
color: var(--muted);
}

.contact-card {
padding: 32px;
border-radius: var(--radius-lg);
background: var(--paper);
border: 1px solid var(--line);
box-shadow: var(--shadow);
}

.social-links {
display: flex;
gap: 14px;
}

.social-links a {
font-weight: 800;
}

.legal {
max-width: 900px;
margin: 0 auto;
padding: 46px clamp(20px, 4vw, 40px);
border-top: 1px solid var(--line);
font-size: 0.95rem;
}

.legal h2 {
font-size: 2rem;
}

.notice {
padding: 16px 18px;
border-left: 4px solid var(--gold);
border-radius: 12px;
background: var(--gold-soft);
color: #4b3720;
}

.footer {
padding: 28px clamp(20px, 4vw, 58px);
border-top: 1px solid var(--line);
display: flex;
justify-content: space-between;
gap: 22px;
color: var(--muted);
}

@media (max-width: 980px) {
.menu-button {
width: 44px;
height: 44px;
display: grid;
place-items: center;
cursor: pointer;
}

.menu-button span,
.menu-button span::before,
.menu-button span::after {
content: "";
display: block;
width: 24px;
height: 2px;
background: var(--ink);
transition: 0.2s ease;
}

.menu-button span::before {
transform: translateY(-8px);
}

.menu-button span::after {
transform: translateY(6px);
}

.nav {
display: none;
position: absolute;
top: 82px;
left: 20px;
right: 20px;
flex-direction: column;
align-items: stretch;
gap: 12px;
padding: 18px;
border: 1px solid var(--line);
border-radius: 20px;
background: var(--paper);
box-shadow: var(--shadow);
}

.menu-toggle:checked ~ .nav {
display: flex;
}

.submenu {
position: static;
margin-top: 8px;
box-shadow: none;
}

.hero,
.split,
.profile,
.visual-language,
.contact {
grid-template-columns: 1fr;
}

.service-grid {
grid-template-columns: repeat(2, 1fr);
}

.method-grid {
grid-template-columns: repeat(2, 1fr);
}

.audience-grid,
.design-notes {
grid-template-columns: repeat(2, 1fr);
}

}

@media (max-width: 640px) {
.brand-copy small {
display: none;
}

h1 {
font-size: clamp(2.25rem, 13vw, 3.3rem);
}

.service-grid,
.method-grid,
.audience-grid,
.design-notes {
grid-template-columns: 1fr;
}

.hero-actions,
.social-links,
.footer {
display: grid;
}

.button {
width: 100%;
}

.signature-card,
.method-panel,
.contact-card {
padding: 26px;
}
}