/* ==========================================================================
   Base, variables, typography
   ========================================================================== */

:root {
  --color-bg: #f6f3ee;
  --color-bg-soft: #f0eae1;
  --color-surface: #ffffff;
  --color-border-subtle: rgba(18, 24, 38, 0.08);
  --color-text: #181818;
  --color-text-soft: #555555;
  --color-accent: #0b2745;
  --color-accent-soft: #1f3f63;
  --color-gold: #b08c4b;
  --color-link: #0b2745;
  --color-link-hover: #1f3f63;
  --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.04);

  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Playfair Display", "Georgia", serif;

  --max-width: 1120px;
  --radius-sm: 4px;
  --radius-md: 8px;

  --header-height: 72px;

  --transition-fast: 160ms ease-out;
  --transition-med: 240ms ease-out;
}

/* Reset-ish */

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

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  display: block;
}

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

a:hover,
a:focus-visible {
  color: var(--color-link-hover);
}

button {
  font-family: inherit;
}

/* Containers & layout */

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ==========================================================================
   Global elements
   ========================================================================== */

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
  z-index: 999;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background-color: rgba(246, 243, 238, 0.9);
  border-bottom: 1px solid rgba(18, 24, 38, 0.04);
  transition: background-color var(--transition-med), box-shadow var(--transition-med),
    border-color var(--transition-med);
}

.site-header.scrolled {
  background-color: rgba(246, 243, 238, 0.97);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06);
  border-color: transparent;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

/* Logo */

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: inherit;
}

.logo-mark {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  border: 1px solid rgba(11, 39, 69, 0.18);
  color: var(--color-accent);
}

.logo-text {
  font-size: 0.78rem;
  opacity: 0.8;
}
.logo-mark,
.hero-title,
.footer-brand {
  font-variant-numeric: lining-nums;
}

/* Navigation */

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  font-size: 0.86rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  padding-bottom: 0.15rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-accent);
  border-color: rgba(176, 140, 75, 0.55);
}

/* Header CTA button */

.nav-cta {
  font-size: 0.8rem;
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 0.4rem;
  cursor: pointer;
}

.nav-toggle-line {
  width: 20px;
  height: 1.6px;
  background-color: var(--color-text);
  display: block;
  border-radius: 999px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle-line + .nav-toggle-line {
  margin-top: 4px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent-soft);
  transform: translateY(-0.5px);
  box-shadow: 0 8px 18px rgba(11, 39, 69, 0.18);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-accent);
  border-color: rgba(11, 39, 69, 0.4);
}

.btn-outline:hover {
  background-color: rgba(11, 39, 69, 0.03);
  border-color: rgba(11, 39, 69, 0.7);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: rgba(24, 24, 24, 0.16);
}

.btn-ghost:hover {
  background-color: rgba(24, 24, 24, 0.03);
  border-color: rgba(24, 24, 24, 0.3);
}

/* Sections */

.section {
  padding-block: 4.5rem;
}

.section-muted {
  background-color: var(--color-bg-soft);
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header-centered {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
  margin-bottom: 0.4rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  letter-spacing: 0.02em;
  margin: 0;
}

.section-intro {
  max-width: 620px;
  margin-top: 0.9rem;
  color: var(--color-text-soft);
}

/* Hero */

.hero {
  position: relative;
  padding-block: 5rem 4rem;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(176, 140, 75, 0.13), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(11, 39, 69, 0.16), transparent 55%);
  opacity: 0.45;
  pointer-events: none;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 16% 5%;
  border-radius: 30px;
  border: 1px solid rgba(11, 39, 69, 0.16);
  border-top-color: transparent;
  border-right-color: transparent;
  opacity: 0.5;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 26% 15%;
  border-radius: 28px;
  border: 1px solid rgba(176, 140, 75, 0.25);
  border-bottom-color: transparent;
  border-left-color: transparent;
  opacity: 0.6;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: flex-start;
}

.hero-main {
  max-width: 640px;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 2.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  max-width: 32rem;
  color: var(--color-text-soft);
  margin: 0 0 1rem;
}

.hero-body {
  color: var(--color-text-soft);
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

/* Hero meta */

.hero-meta {
  padding: 1.3rem 1.5rem 1.5rem;
  border-radius: 16px;
  background-color: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(11, 39, 69, 0.06);
}

.meta-block {
  border-bottom: 1px solid rgba(11, 39, 69, 0.08);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.meta-title {
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0 0 0.35rem;
}

.meta-text {
  margin: 0;
  font-size: 0.94rem;
  color: var(--color-text-soft);
}

.meta-list {
  margin: 0;
  padding: 0;
}

.meta-item {
  display: grid;
  grid-template-columns: minmax(0, 5.5rem) minmax(0, 1fr);
  column-gap: 1.25rem;
  padding-block: 0.45rem;
  font-size: 0.88rem;
}

.meta-item dt {
  font-weight: 500;
  color: var(--color-text-soft);
}

.meta-item dd {
  margin: 0;
}

/* Cards, grids */

.cards {
  display: grid;
  gap: 1.75rem;
}

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card {
  background-color: var(--color-surface);
  border-radius: 14px;
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--color-border-subtle);
}

.card-title {
  font-size: 1.02rem;
  margin: 0 0 0.6rem;
}

.card-text {
  margin: 0;
  font-size: 0.96rem;
  color: var(--color-text-soft);
}

/* Approach */

.approach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: flex-start;
}

.approach-text p {
  color: var(--color-text-soft);
  max-width: 38rem;
}

.approach-text p + p {
  margin-top: 0.7rem;
}

.approach-diagram {
  position: relative;
  padding: 1.4rem 1.5rem 1.5rem;
  border-radius: 16px;
  background-color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(11, 39, 69, 0.09);
}

.approach-diagram::before {
  content: "";
  position: absolute;
  inset: 14px 14px auto auto;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(11, 39, 69, 0.18);
  border-bottom-color: transparent;
  border-left-color: transparent;
  opacity: 0.7;
}

.diagram-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-soft);
  margin-bottom: 0.7rem;
}

.diagram-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.diagram-step + .diagram-step {
  border-top: 1px solid rgba(11, 39, 69, 0.08);
  margin-top: 0.8rem;
  padding-top: 0.8rem;
}

.diagram-step h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
}

.diagram-step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

/* Value section */

.value-layout {
  display: flex;
  flex-wrap: wrap;
}

.value-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.98rem;
  color: var(--color-text-soft);
}

.value-list li + li {
  margin-top: 0.4rem;
}

/* Activity */

.section-muted .card {
  background-color: rgba(255, 255, 255, 0.94);
}

/* Philosophy */

.philosophy {
  background-color: #fbf8f2;
}

.philosophy-body {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  color: var(--color-text-soft);
}

.philosophy-body p + p {
  margin-top: 0.5rem;
}

/* Contact */

.section-contact {
  border-top: 1px solid rgba(11, 39, 69, 0.06);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: flex-start;
}

.contact-locations {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  font-size: 0.96rem;
  color: var(--color-text-soft);
}

.contact-locations li + li {
  margin-top: 0.35rem;
}

.contact-locations .label {
  display: inline-block;
  min-width: 5.3rem;
  font-weight: 500;
  color: var(--color-text);
}

.contact-details {
  padding: 1.6rem 1.6rem 1.8rem;
  border-radius: 16px;
  border: 1px solid rgba(11, 39, 69, 0.1);
  background-color: rgba(255, 255, 255, 0.92);
}

.contact-line {
  margin: 0 0 0.6rem;
  font-size: 0.96rem;
  color: var(--color-text-soft);
}

.contact-email {
  margin: 0 0 1.4rem;
  font-size: 1rem;
}

.contact-email a {
  font-weight: 500;
  color: var(--color-accent);
}

.contact-email a:hover {
  color: var(--color-accent-soft);
}

.contact-btn {
  width: auto;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(18, 24, 38, 0.08);
  padding-block: 1.8rem 1.5rem;
  background-color: #f4efe7;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.footer-brand {
  font-weight: 500;
}

.footer-tagline {
  margin-left: 0.6rem;
  color: var(--color-text-soft);
}

.footer-contact a {
  color: var(--color-accent);
}

.footer-contact a:hover {
  color: var(--color-accent-soft);
}

.footer-legal {
  margin-top: 0.8rem;
  font-size: 0.78rem;
  color: var(--color-text-soft);
}

/* Scroll reveal */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 480ms ease-out, transform 480ms ease-out;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Utility */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Section scroll offset for sticky header */

section {
  scroll-margin-top: calc(var(--header-height) + 14px);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.1fr);
    gap: 2.4rem;
  }

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .approach-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: 64px;
  }

  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: rgba(246, 243, 238, 0.98);
    border-bottom: 1px solid rgba(18, 24, 38, 0.06);
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1.5rem 1.1rem;
    gap: 0.9rem;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: max-height 200ms ease-out, opacity 200ms ease-out, transform 200ms ease-out;
  }

  body.nav-open .main-nav {
    max-height: 320px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }

  .nav-cta {
    margin-top: 0.4rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  /* Hamburger animation */
  body.nav-open .nav-toggle-line:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
  }

  body.nav-open .nav-toggle-line:nth-child(2) {
    opacity: 0;
  }

  body.nav-open .nav-toggle-line:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  .hero {
    padding-block: 4rem 3.25rem;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-meta {
    max-width: 380px;
  }

  .cards,
  .columns-3,
  .cards-4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .section {
    padding-block: 3.5rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .site-footer {
    padding-block: 1.6rem 1.4rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .container {
    padding-inline: 1.2rem;
  }
}