/* ==========================================================================
   RATIO ARCHITECTS — Stylesheet
   Design system per PRD v1.0
   --------------------------------------------------------------------------
   Typography : Montserrat (headings) / Inter (body)
   Palette    : Near Black #1A1A1A | Off White #F8F7F4 | Light Grey #E5E5E5
                Mid Grey #888888 | Accent #C5A96A
   Principles : Clean · Considered · Editorial · Confident
   ========================================================================== */

/* ------------------------------------------------------------------ Tokens */
:root {
  --black:      #1A1A1A;
  --off-white:  #F8F7F4;
  --light-grey: #E5E5E5;
  --mid-grey:   #888888;
  --accent:     #C5A96A;
  --white:      #FFFFFF;

  --font-head: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Fluid proportional spacing scale */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;
  --space-2xl: 9rem;

  --maxw: 1440px;
  --gutter: clamp(1.25rem, 5vw, 5rem);

  --nav-h: 84px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.6s;

  --hair: 1px solid var(--light-grey);
}

/* ------------------------------------------------------------------ Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--off-white);
  line-height: 1.65;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.is-intro-active { overflow: hidden; }
body.menu-open { overflow: hidden; }

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

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

button { font-family: inherit; cursor: pointer; border: none; background: none; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

ul { list-style: none; }

::selection { background: var(--accent); color: var(--white); }

/* ------------------------------------------------------------ Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--black);
}

.display {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }

p { max-width: 64ch; }

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.6;
  color: var(--black);
}

.eyebrow {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mid-grey);
}

.muted { color: var(--mid-grey); }

/* --------------------------------------------------------------- Layout */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--space-2xl); }
.section--tight { padding-block: var(--space-xl); }

.hairline { border: 0; border-top: var(--hair); }

/* Reusable section heading block */
.section-head {
  display: grid;
  gap: var(--space-sm);
  max-width: 50ch;
  margin-bottom: var(--space-lg);
}

/* ----------------------------------------------------------------- Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border: 1px solid var(--black);
  color: var(--black);
  background: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--black); color: var(--off-white); }

.btn--accent { border-color: var(--accent); color: var(--off-white); }
.btn--accent:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.btn--solid { background: var(--black); color: var(--off-white); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.btn .arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* Text link with underline reveal */
.link {
  position: relative;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.link:hover::after { transform: scaleX(1); transform-origin: left; }
.link .arrow { transition: transform var(--dur) var(--ease); }
.link:hover .arrow { transform: translateX(4px); }

/* =========================================================== Navigation */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              backdrop-filter var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.nav__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: max-content;
  transition: opacity 0.35s var(--ease);
}
.nav__brand-mark {
  width: 38px;
  height: 38px;
  object-fit: contain;
}
.nav__actions { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); }

.nav__links { display: flex; align-items: center; gap: var(--space-md); }
.nav__link {
  position: relative;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-block: 0.4rem;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav__link[aria-current="page"] { color: var(--accent); }
.nav__social { display: flex; align-items: center; gap: 0.55rem; }
.nav__social-link {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(26,26,26,0.25);
  border-radius: 50%;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav__social-link img { width: 15px; height: 15px; }
.nav__social-link:hover { border-color: var(--accent); background: rgba(197,169,106,0.12); }

/* Transparent over hero, solid on scroll */
.nav--solid {
  background: rgba(248, 247, 244, 0.86);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--light-grey);
}
.nav--invert:not(.nav--solid) .nav__logo,
.nav--invert:not(.nav--solid) .nav__link { color: var(--off-white); }
.nav--invert:not(.nav--solid) .nav__burger { color: var(--off-white); }
.nav--invert:not(.nav--solid) .nav__social-link { border-color: rgba(248,247,244,0.42); }
.nav--invert:not(.nav--solid) .nav__social-link img { filter: invert(1); }
.nav.is-open {
  background: var(--off-white);
  border-bottom-color: var(--light-grey);
}
.nav.is-open .nav__logo,
.nav.is-open .nav__burger { color: var(--black) !important; }

/* Burger */
.nav__burger {
  display: none;
  width: 36px; height: 36px;
  position: relative;
  color: var(--black);
}
.nav__burger span {
  position: absolute;
  left: 6px; right: 6px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity 0.3s var(--ease);
}
.nav__burger span:nth-child(1) { top: 13px; }
.nav__burger span:nth-child(2) { top: 22px; }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ====================================================== Mobile menu panel */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--off-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.7s var(--ease), opacity 0.35s ease,
              visibility 0s linear 0.7s;
  visibility: hidden;
}
.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transition-delay: 0s;
}
.mobile-menu a {
  font-family: var(--font-head);
  font-size: clamp(2rem, 9vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  padding-block: 0.6rem;
  border-bottom: var(--hair);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--black);
}
.mobile-menu a .idx { font-size: 0.8rem; color: var(--mid-grey); letter-spacing: 0.1em; }
.mobile-menu__social {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--space-md);
}
.mobile-menu__social a {
  width: 44px;
  height: 44px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--light-grey);
  border-radius: 50%;
}
.mobile-menu__social img { width: 18px; height: 18px; }

/* ======================================================== Opening logo */
.site-intro {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: var(--off-white);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.45s var(--ease), visibility 0.45s;
}
.site-intro__content {
  display: grid;
  justify-items: center;
  gap: 1.5rem;
}
.site-intro__mark {
  width: clamp(130px, 17vw, 220px);
  height: auto;
  transform-origin: center;
  transition: transform 0.9s var(--ease), opacity 0.55s var(--ease);
  will-change: transform, opacity;
}
.site-intro__tagline {
  font-family: var(--font-head);
  font-size: clamp(0.65rem, 1.1vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--black);
  opacity: 0;
  animation: introTagline 0.55s var(--ease) 0.25s forwards;
}
.site-intro.is-settling .site-intro__mark {
  transform: translate(var(--intro-x, 0), var(--intro-y, 0)) scale(var(--intro-scale, 0.2));
  opacity: 0.25;
}
.site-intro.is-settling .site-intro__tagline { opacity: 0; transition: opacity 0.25s ease; }
.site-intro.is-complete { opacity: 0; visibility: hidden; pointer-events: none; }
body.is-intro-active .nav__logo { opacity: 0; }
body.intro-complete .nav__logo { opacity: 1; }
@keyframes introTagline { to { opacity: 1; } }

/* =============================================================== Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: var(--off-white);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img,
.hero__media video { width: 100%; height: 100%; object-fit: cover; }
.hero__media img { filter: grayscale(1) contrast(1.06); }
.hero::after {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(26,26,26,0.45) 0%, rgba(26,26,26,0.08) 38%, rgba(26,26,26,0.80) 100%);
}
.hero__inner { padding-bottom: var(--space-xl); width: 100%; }
.hero__tagline {
  max-width: 16ch;
  margin-top: var(--space-sm);
  color: var(--off-white);
  text-transform: uppercase;
}
.hero__tagline .hero__tagline-accent {
  color: var(--accent);
  display: block;
}
.hero__tagline-line { display: block; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  align-items: center;
}
.hero__scroll {
  position: absolute;
  right: var(--gutter);
  bottom: var(--space-xl);
  writing-mode: vertical-rl;
  font-family: var(--font-head);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.8;
}
.hero__scroll::after {
  content: '';
  display: block;
  width: 1px; height: 48px;
  background: currentColor;
  margin: 10px auto 0;
  animation: scrollLine 2.2s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(0.3); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ====================================================== Intro / statement */
.statement {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 22ch;
}
.statement .accent { color: var(--accent); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.two-col--narrow { grid-template-columns: 0.85fr 1fr; }

/* ============================================== Featured / project grid */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md) var(--space-md);
}
.proj-grid--3 { grid-template-columns: repeat(3, 1fr); }

/* Card */
.card { display: block; }
.card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--light-grey);
}
.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.9s var(--ease);
}
.card:hover .card__media img { transform: scale(1.05); }
.card__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.5rem;
  background: linear-gradient(0deg, rgba(26,26,26,0.7), rgba(26,26,26,0));
  color: var(--off-white);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.card:hover .card__overlay { opacity: 1; transform: translateY(0); }
.card__overlay .name { font-family: var(--font-head); font-weight: 600; font-size: 1.1rem; }
.card__body {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 1rem;
  gap: 1rem;
}
.card__name { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; }
.card__meta { font-size: 0.85rem; color: var(--mid-grey); white-space: nowrap; }
.card__cat {
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.4rem;
}

/* Featured layout — alternating large/small editorial rhythm */
.featured-list { display: grid; gap: var(--space-xl); }
.featured-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}
.featured-item:nth-child(even) .featured-item__text { order: 2; }
.featured-item__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--light-grey);
}
.featured-item__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease);
}
.featured-item:hover .featured-item__media img { transform: scale(1.04); }
.featured-item__index {
  font-family: var(--font-head);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--mid-grey);
}
.featured-item h3 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin-block: 0.6rem 1rem; }

/* =============================================== Filter tabs (portfolio) */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  border-bottom: var(--hair);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-lg);
}
.filter {
  position: relative;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mid-grey);
  padding-bottom: 0.4rem;
  transition: color var(--dur) var(--ease);
  min-height: 44px;
}
.filter::after {
  content: '';
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%; height: 1.5px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.filter:hover { color: var(--black); }
.filter.is-active { color: var(--black); }
.filter.is-active::after { transform: scaleX(1); }
.filter .count { font-size: 0.6rem; vertical-align: super; color: var(--accent); margin-left: 2px; }

/* Grid items animate when filtered */
.proj-grid .card {
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.proj-grid .card.is-hidden {
  display: none;
}

/* ===================================================== Project detail */
.detail-hero {
  position: relative;
  height: 90vh;
  min-height: 520px;
  overflow: hidden;
  background: var(--light-grey);
}
.detail-hero img { width: 100%; height: 100%; object-fit: cover; }
.detail-hero__cap {
  position: absolute;
  left: var(--gutter);
  bottom: var(--space-lg);
  color: var(--off-white);
  text-shadow: 0 1px 30px rgba(0,0,0,0.4);
  z-index: 2;
}
.detail-hero__cap h1 { color: var(--off-white); }
.detail-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(26,26,26,0.55), rgba(26,26,26,0) 45%);
  z-index: 1;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: var(--hair);
}
.detail-meta dt {
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 0.5rem;
}
.detail-meta dd { font-family: var(--font-head); font-weight: 500; font-size: 1.05rem; }

.narrative { max-width: 60ch; }
.narrative p + p { margin-top: 1.25rem; }

.gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-sm);
}
.gallery img {
  width: 100%;
  background: var(--light-grey);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.gallery .g-wide { grid-column: span 12; aspect-ratio: 16 / 7; }
.gallery .g-half { grid-column: span 6; }
.gallery .g-third { grid-column: span 4; }

.detail-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: var(--hair);
}
.detail-nav a { font-family: var(--font-head); font-weight: 500; }
.detail-nav .dir { font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mid-grey); display: block; margin-bottom: 0.4rem; }

/* ===================================================== About / founders */
.founder {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.founder__photo { aspect-ratio: 3 / 4; background: var(--light-grey); overflow: hidden; }
.founder__photo img { width: 100%; height: 100%; object-fit: cover; }

.founders-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 4rem);
}
.founder-card__photo {
  aspect-ratio: 4 / 5;
  background: var(--light-grey);
  overflow: hidden;
}
.founder-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter var(--dur) var(--ease), transform 0.8s var(--ease);
}
.founder-card:first-child .founder-card__photo img { object-position: 50% 28%; }
.founder-card:last-child .founder-card__photo img { object-position: 50% 38%; }
.founder-card:hover .founder-card__photo img { filter: grayscale(0); transform: scale(1.015); }
.founder-card__details {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  padding-top: 1.25rem;
  border-top: 2px solid var(--black);
  margin-top: 1rem;
}
.founder-card__details h3 { font-size: clamp(1.25rem, 2.4vw, 2rem); }
.founder-card__label {
  color: var(--mid-grey);
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.team__photo { aspect-ratio: 1 / 1; background: var(--light-grey); overflow: hidden; margin-bottom: 1rem; }
.team__photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); transition: filter var(--dur) var(--ease); }
.team-member:hover .team__photo img { filter: grayscale(0); }
.team__name { font-family: var(--font-head); font-weight: 600; }
.team__role { color: var(--mid-grey); font-size: 0.9rem; }

.timeline { display: grid; gap: 0; }
.timeline__row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-md);
  padding-block: var(--space-md);
  border-top: var(--hair);
}
.timeline__row:last-child { border-bottom: var(--hair); }
.timeline__year { font-family: var(--font-head); font-weight: 600; font-size: 1.4rem; color: var(--accent); }
.timeline__body h4 { margin-bottom: 0.4rem; }

.creds {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}
.cred { padding-top: var(--space-sm); border-top: 2px solid var(--black); }
.cred__num { font-family: var(--font-head); font-weight: 600; font-size: clamp(2.2rem, 4vw, 3rem); }
.cred__label { color: var(--mid-grey); font-size: 0.9rem; }

/* ===================================================== Services */
.service-row {
  display: grid;
  grid-template-columns: 80px 0.7fr 1.3fr;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: var(--hair);
  align-items: start;
  transition: background var(--dur) var(--ease), padding-inline var(--dur) var(--ease);
}
.service-row:last-child { border-bottom: var(--hair); }
.service-row:hover { background: var(--white); }
.service-row__num { font-family: var(--font-head); font-weight: 600; color: var(--mid-grey); font-size: 0.95rem; padding-top: 0.5rem; }
.service-row h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); }
.service-row__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }
.tag {
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-grey);
  border: var(--hair);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
}

/* ===================================================== Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}
.field { margin-bottom: var(--space-md); }
.field label {
  display: block;
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 0.6rem;
}
.field input,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--black);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--light-grey);
  padding: 0.7rem 0;
  transition: border-color var(--dur) var(--ease);
}
.field input:focus,
.field textarea:focus { outline: none; border-bottom-color: var(--black); }
.field textarea { resize: vertical; min-height: 120px; }
.field.has-error input,
.field.has-error textarea { border-bottom-color: #C0392B; }
.field__error {
  display: none;
  color: #C0392B;
  font-size: 0.8rem;
  margin-top: 0.4rem;
}
.field.has-error .field__error { display: block; }

.form-status {
  margin-top: var(--space-sm);
  font-size: 0.92rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-success { color: #1E7A46; }
.form-status.is-error { color: #C0392B; }

.contact-info dl { display: grid; gap: var(--space-md); }
.contact-info dt {
  font-family: var(--font-head);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 0.4rem;
}
.contact-info dd { font-size: 1.05rem; }
.contact-info a:hover { color: var(--accent); }
.contact-link {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.contact-link img { width: 19px; height: 19px; margin-top: 0.2rem; flex: 0 0 auto; }
.contact-phone-list { display: grid; gap: 0.3rem; }

.map-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 7;
  border: var(--hair);
  margin-top: var(--space-xl);
  filter: grayscale(1) contrast(1.05);
  transition: filter var(--dur) var(--ease);
}
.map-embed:hover { filter: grayscale(0); }
.map-embed iframe { width: 100%; height: 100%; border: 0; }
.map-embed__link {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.8rem 1rem;
  background: var(--off-white);
  border: 1px solid rgba(26,26,26,0.2);
  box-shadow: 0 10px 30px rgba(26,26,26,0.16);
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.map-embed__link img { width: 17px; height: 17px; }
.map-embed__link:hover { color: var(--accent); }

.socials { display: flex; gap: var(--space-md); margin-top: var(--space-md); }
.socials a { font-family: var(--font-head); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}
.social-link img { width: 18px; height: 18px; }

/* ===================================================== Page header (inner) */
.page-head {
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-lg);
}
.page-head .display { margin-top: var(--space-sm); }

/* ===================================================== CTA band */
.cta-band {
  background: var(--black);
  color: var(--off-white);
  text-align: center;
}
.cta-band h2 { color: var(--off-white); max-width: 20ch; margin-inline: auto; }
.cta-band .display { color: var(--off-white); }

/* ===================================================== Footer */
.footer {
  background: var(--black);
  color: var(--off-white);
  padding-block: var(--space-xl) var(--space-lg);
}
.footer a:hover { color: var(--accent); }
.footer__top {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr 1.15fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(248,247,244,0.15);
}
.footer__brand-lockup {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.footer__brand-mark { width: 54px; height: 54px; object-fit: contain; }
.footer__brand-name {
  font-family: var(--font-head);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--off-white);
}
.footer__col h4 { color: var(--off-white); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mid-grey); margin-bottom: var(--space-sm); }
.footer__col a { display: block; padding-block: 0.35rem; font-size: 0.95rem; }
.footer__address { line-height: 1.65; }
.footer__socials { display: flex; gap: 0.65rem; margin-top: 0.8rem; }
.footer__socials a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(248,247,244,0.22);
  border-radius: 50%;
}
.footer__socials img { width: 17px; height: 17px; filter: invert(1); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  font-size: 0.82rem;
  color: var(--mid-grey);
}

/* ===================================================== Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ===================================================== Responsive */
@media (max-width: 980px) {
  :root { --nav-h: 72px; }
  .two-col, .two-col--narrow,
  .featured-item,
  .founder,
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .featured-item:nth-child(even) .featured-item__text { order: 0; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .service-row { grid-template-columns: 50px 1fr; }
  .service-row__desc { grid-column: 2; }
  .nav__social { display: none; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .mobile-menu { padding-top: calc(var(--nav-h) + var(--space-md)); }
}

@media (max-width: 640px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4.5rem;
    --space-2xl: 6rem;
  }
  .nav__logo span { font-size: 0.78rem; }
  .nav__brand-mark { width: 34px; height: 34px; }
  .nav__actions { gap: 0; }
  .nav__inner { padding-inline: 1.25rem; }
  .mobile-menu { justify-content: flex-start; overflow-y: auto; }
  .mobile-menu nav { margin-top: auto; margin-bottom: auto; width: 100%; }
  .mobile-menu a { font-size: clamp(1.85rem, 9vw, 2.5rem); padding-block: 0.75rem; }
  .mobile-menu__social { margin-top: 1.5rem; padding-bottom: 1rem; }
  .proj-grid, .proj-grid--3 { grid-template-columns: 1fr; gap: var(--space-md); }
  .team-grid { grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
  .founders-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .founder-card__details { grid-template-columns: 1fr; gap: 0.5rem; }
  .gallery .g-half, .gallery .g-third { grid-column: span 12; }
  .timeline__row { grid-template-columns: 1fr; gap: 0.5rem; }
  .detail-meta { grid-template-columns: 1fr 1fr; }
  .section { padding-block: var(--space-xl); }
  .footer__top { grid-template-columns: 1fr; }
  .hero__scroll { display: none; }
  .hero__inner { padding-bottom: clamp(3rem, 9vh, 4.5rem); }
  .hero__tagline {
    width: 100%;
    max-width: none;
    font-size: clamp(2.05rem, 9.2vw, 2.4rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
  }
  .hero__meta {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.2rem;
    margin-top: 2rem;
  }
  .hero__meta .btn { width: 100%; justify-content: center; }
  .hero .eyebrow { max-width: 30ch; line-height: 1.8; }
  .page-head {
    padding-top: calc(var(--nav-h) + 3rem);
    padding-bottom: 2.75rem;
  }
  .page-head .lead { margin-top: 1.5rem !important; }
  .filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 1.5rem;
    margin-right: calc(var(--gutter) * -1);
    padding-right: var(--gutter);
    padding-bottom: 0.75rem;
    scrollbar-width: none;
    overscroll-behavior-inline: contain;
  }
  .filters::-webkit-scrollbar { display: none; }
  .filter { flex: 0 0 auto; }
  .service-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding-block: 2.5rem;
  }
  .service-row__num { padding-top: 0; font-size: 0.78rem; }
  .service-row__desc { grid-column: 1; }
  .service-row__tags { margin-top: 1rem; }
  .detail-hero {
    height: 68svh;
    min-height: 520px;
  }
  .detail-hero__cap { bottom: 2.5rem; }
  .gallery .g-wide { aspect-ratio: 4 / 3; }
  .detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 2rem 1rem;
  }
  .detail-nav .link {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
  }
  .detail-nav a:first-child { grid-column: 1; grid-row: 2; }
  .detail-nav a:last-child { grid-column: 2; grid-row: 2; }
  .contact-info {
    margin-top: 1rem;
    padding-top: 2.5rem;
    border-top: var(--hair);
  }
  .socials { flex-wrap: wrap; gap: 1rem 1.5rem; }
  .site-intro__mark { width: 132px; }
  .site-intro__tagline { max-width: 26ch; text-align: center; line-height: 1.8; }
  .map-embed { aspect-ratio: 4 / 3; }
  .map-embed__link { left: 1rem; right: auto; }
  .footer__brand-lockup { align-items: flex-start; }
  .footer__brand-mark { width: 46px; height: 46px; }
  .footer__brand-name { font-size: 1.1rem; }
  .footer__col a { overflow-wrap: anywhere; }
}

@media (max-width: 380px) {
  .hero__tagline { font-size: 1.95rem; }
  .detail-meta { grid-template-columns: 1fr; }
  .footer__brand-name { font-size: 1rem; }
}