/* ============================================================
   Design Square — Interior Designers, Mangalore
   Palette drawn from the studio logo: ink navy, porcelain,
   champagne metal. Display face: Marcellus (inscriptional,
   echoes the logo lettering). Body: Jost.
   Signature device: the hairline square, from the studio name.
   ============================================================ */

:root {
  --ink: #111c34;
  --ink-deep: #0b1428;
  --porcelain: #fbfaf7;
  --linen: #f2efe8;
  --champagne: #a58c5f;
  --silver: #c6c9ce;
  --stone: #6c675d;
  --line: #ddd8cc;
  --font-display: 'Marcellus', serif;
  --font-body: 'Jost', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--porcelain);
  -webkit-font-smoothing: antialiased;
}

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

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

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- type ---------- */

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--champagne);
}

.eyebrow::before {
  content: '';
  width: 9px;
  height: 9px;
  border: 1px solid var(--champagne);
  flex: none;
}

/* ---------- header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header .bar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #fff;
  transition: color 0.35s ease;
  white-space: nowrap;
}

.wordmark .sq { color: var(--champagne); }

.site-nav { display: flex; gap: 34px; }

.site-nav a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.site-nav a:hover, .site-nav a.active { color: #fff; border-color: var(--champagne); }

.site-header.solid { background: var(--porcelain); box-shadow: 0 1px 0 var(--line); }
.site-header.solid .wordmark { color: var(--ink); }
.site-header.solid .site-nav a { color: var(--stone); }
.site-header.solid .site-nav a:hover,
.site-header.solid .site-nav a.active { color: var(--ink); border-color: var(--champagne); }

/* dark pages (non-hero) start solid */
.site-header.on-light { background: var(--porcelain); box-shadow: 0 1px 0 var(--line); }
.site-header.on-light .wordmark { color: var(--ink); }
.site-header.on-light .site-nav a { color: var(--stone); }
.site-header.on-light .site-nav a:hover,
.site-header.on-light .site-nav a.active { color: var(--ink); border-color: var(--champagne); }

/* mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 70;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 1.5px;
  background: currentColor;
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
  color: #fff;
}
.site-header.solid .nav-toggle span,
.site-header.on-light .nav-toggle span { background: var(--ink); }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: 0;
    background: var(--ink-deep);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
  }
  .site-nav a { font-size: 1rem; color: rgba(255,255,255,0.9) !important; }
  body.nav-open .site-nav { opacity: 1; pointer-events: auto; }
  body.nav-open .nav-toggle span { background: #fff !important; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  body.nav-open { overflow: hidden; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.hero .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
  animation: heroDrift 14s ease-out forwards;
}

@keyframes heroDrift { to { transform: scale(1); } }

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(11, 20, 40, 0.55) 0%,
    rgba(11, 20, 40, 0.38) 45%,
    rgba(11, 20, 40, 0.72) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 120px 36px 90px;
  max-width: 760px;
}

/* the signature square frame */
.hero-frame {
  position: relative;
  padding: 56px 44px;
}
.hero-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  animation: frameIn 1.4s ease 0.3s both;
  pointer-events: none;
}
.hero-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translate(12px, 12px);
  border: 1px solid rgba(165, 140, 95, 0.55);
  animation: frameIn 1.4s ease 0.55s both;
  pointer-events: none;
}

@keyframes frameIn { from { opacity: 0; } to { opacity: 1; } }

.hero .eyebrow { color: var(--silver); justify-content: center; }
.hero .eyebrow::before { border-color: var(--champagne); }

.hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 22px 0 6px;
  animation: riseIn 1s ease 0.15s both;
}

.hero .tag {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.88);
  max-width: 480px;
  margin: 0 auto;
  animation: riseIn 1s ease 0.35s both;
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.hero-cta {
  margin-top: 36px;
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  animation: riseIn 1s ease 0.55s both;
}

.btn {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  padding: 15px 34px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.btn:hover { background: #fff; color: var(--ink); border-color: #fff; }

.btn.gold { border-color: var(--champagne); background: var(--champagne); color: #fff; }
.btn.gold:hover { background: transparent; color: #fff; border-color: var(--champagne); }

.btn.dark { border-color: var(--ink); color: var(--ink); }
.btn.dark:hover { background: var(--ink); color: #fff; }

.hero .scroll-hint {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 1px; height: 52px;
  background: linear-gradient(rgba(255,255,255,0.7), transparent);
}

/* ---------- sections ---------- */

section { padding: 100px 0; }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-top: 18px; }
.section-head p { margin-top: 16px; color: var(--stone); }

/* intro (home) */
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items: center;
}

.intro-grid .statement {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.3;
}

.intro-grid .statement em {
  font-style: normal;
  color: var(--champagne);
}

.intro-copy p { color: var(--stone); margin-bottom: 20px; }

.text-link {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--champagne);
  padding-bottom: 4px;
  transition: color 0.25s;
}
.text-link:hover { color: var(--champagne); }

@media (max-width: 860px) {
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- featured work (home) ---------- */

.alt-band { background: var(--linen); }

.feature {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 90px;
}
.feature:last-child { margin-bottom: 0; }
.feature:nth-child(even) .feature-img { order: 2; }

.feature-img { position: relative; }
.feature-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
/* offset hairline square — the signature, again */
.feature-img::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translate(16px, 16px);
  border: 1px solid var(--champagne);
  pointer-events: none;
  z-index: -1;
}

.feature-body h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin: 14px 0 12px; }
.feature-body p { color: var(--stone); margin-bottom: 24px; }
.feature-body .meta {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--champagne);
  font-weight: 500;
}

@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; gap: 28px; margin-bottom: 70px; }
  .feature:nth-child(even) .feature-img { order: 0; }
}

/* ---------- scope band (navy) ---------- */

.scope-band { background: var(--ink-deep); color: #fff; }
.scope-band .section-head h2 { color: #fff; }
.scope-band .section-head p { color: var(--silver); }

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.scope-cell {
  background: var(--ink-deep);
  padding: 44px 36px;
}

.scope-cell h3 {
  font-size: 1.35rem;
  margin-bottom: 14px;
  color: #fff;
}

.scope-cell p { color: var(--silver); font-size: 0.98rem; }

@media (max-width: 860px) {
  .scope-grid { grid-template-columns: 1fr; }
}

/* ---------- contact band ---------- */

.contact-band { text-align: center; }
.contact-band h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin: 18px 0 14px; }
.contact-band p { color: var(--stone); max-width: 520px; margin: 0 auto 34px; }
.contact-band .hero-cta { animation: none; margin-top: 0; }

/* ---------- projects page ---------- */

.page-head {
  padding: 170px 0 70px;
}
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-top: 18px; }
.page-head p { color: var(--stone); max-width: 560px; margin-top: 16px; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 10px 22px;
  background: none;
  border: 1px solid var(--line);
  color: var(--stone);
  cursor: pointer;
  transition: all 0.25s;
}

.filter-btn:hover { border-color: var(--champagne); color: var(--ink); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px 32px;
  padding-bottom: 110px;
}

.project-card { cursor: pointer; }
.project-card.hidden { display: none; }

.card-img { position: relative; overflow: hidden; }
.card-img img, .card-img video {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.project-card:hover .card-img img,
.project-card:hover .card-img video { transform: scale(1.045); }

.card-img::after {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.0);
  transition: border-color 0.4s ease;
  pointer-events: none;
}
.project-card:hover .card-img::after { border-color: rgba(255, 255, 255, 0.75); }

.card-count {
  position: absolute;
  right: 12px; bottom: 12px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: #fff;
  background: rgba(11, 20, 40, 0.65);
  padding: 5px 12px;
  backdrop-filter: blur(4px);
}

.project-card h3 { font-size: 1.25rem; margin: 18px 0 4px; }
.project-card .meta {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--champagne);
  font-weight: 500;
}

@media (max-width: 960px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .projects-grid { grid-template-columns: 1fr; } }

/* ---------- lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(8, 13, 27, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 40px 20px;
}
.lightbox.open { display: flex; }

.lb-stage {
  max-width: min(1000px, 92vw);
  max-height: 74vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lb-stage img, .lb-stage video {
  max-width: 100%;
  max-height: 74vh;
  object-fit: contain;
}

.lb-caption {
  color: #fff;
  text-align: center;
  margin-top: 24px;
}
.lb-caption .lb-title { font-family: var(--font-display); font-size: 1.3rem; }
.lb-caption .lb-meta {
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--champagne);
  margin-top: 6px;
  font-weight: 500;
}
.lb-caption .lb-index { color: var(--silver); font-size: 0.8rem; margin-top: 6px; }

.lb-btn {
  position: absolute;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  width: 52px; height: 52px;
  font-size: 1.15rem;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lb-btn:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }

.lb-close { top: 26px; right: 26px; }
.lb-prev { left: 26px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 26px; top: 50%; transform: translateY(-50%); }

@media (max-width: 700px) {
  .lb-prev { left: 10px; } .lb-next { right: 10px; }
  .lb-btn { width: 44px; height: 44px; }
}

/* ---------- about page ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: start;
}

.about-grid .portrait { position: relative; }
.about-grid .portrait img { width: 100%; object-fit: cover; }
.about-grid .portrait::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translate(16px, 16px);
  border: 1px solid var(--champagne);
  z-index: -1;
}

.about-copy h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 14px 0 20px; }
.about-copy p { color: var(--stone); margin-bottom: 18px; }

.founders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
}

.founder {
  border-top: 1px solid var(--champagne);
  padding-top: 20px;
}
.founder h3 { font-size: 1.2rem; margin-bottom: 6px; }
.founder p { font-size: 0.9rem; color: var(--stone); margin-bottom: 10px; }
.founder a {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--champagne);
  font-weight: 500;
}
.founder a:hover { color: var(--ink); }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .founders { grid-template-columns: 1fr; }
}

/* how we work */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step { border-top: 1px solid var(--line); padding-top: 24px; }
.step .step-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--champagne);
}
.step h3 { font-size: 1.3rem; margin: 12px 0 10px; }
.step p { color: var(--stone); font-size: 0.98rem; }

@media (max-width: 860px) { .steps-grid { grid-template-columns: 1fr; } }

/* ---------- contact page ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  padding-bottom: 110px;
}

.contact-list { list-style: none; }
.contact-list li {
  border-top: 1px solid var(--line);
  padding: 26px 0;
}
.contact-list .label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--champagne);
  display: block;
  margin-bottom: 8px;
}
.contact-list a.big {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  transition: color 0.25s;
  overflow-wrap: anywhere;
}
.contact-list a.big:hover { color: var(--champagne); }
.contact-list p { color: var(--stone); font-size: 0.95rem; margin-top: 6px; }

.contact-side { position: relative; }
.contact-side img { width: 100%; height: 100%; object-fit: cover; }
.contact-side::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translate(16px, 16px);
  border: 1px solid var(--champagne);
  z-index: -1;
}

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--ink-deep);
  color: var(--silver);
  padding: 70px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-grid .flogo {
  width: 110px;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-grid .fmark {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 14px;
}
.footer-grid .fmark .sq { color: var(--champagne); }

.footer-grid p { font-size: 0.92rem; max-width: 320px; }

.footer-grid h4 {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--champagne);
  margin-bottom: 16px;
}

.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid ul a { font-size: 0.95rem; color: var(--silver); transition: color 0.25s; }
.footer-grid ul a:hover { color: #fff; }

.footer-base {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: rgba(198, 201, 206, 0.65);
}

@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 34px; } }

/* ---------- loading screen ----------
   From the Claude Design handoff (variant 1A "Drawn Monogram"):
   monogram strokes draw in, wordmark tracks in, hairline progress
   fills, overlay wipes up. Colors/timing/easing per handoff. */

html.ds-loading { overflow: hidden; }
html.ds-no-loader .ds-loader { display: none; }

.ds-loader {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: #0e1c36;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
}

.ds-loader .ds-line {
  stroke: #c9ced9;
  stroke-width: 1.5;
  stroke-dasharray: 76;
  stroke-dashoffset: 76;
  animation: dsDraw 0.6s ease-out 0.05s forwards;
}
.ds-loader .ds-arc {
  stroke: #c9ced9;
  stroke-width: 1.5;
  stroke-dasharray: 140;
  stroke-dashoffset: 140;
  animation: dsDraw 0.7s ease-out 0.25s forwards;
}
.ds-loader .ds-square {
  stroke: #8b93a6;
  stroke-width: 1.5;
  stroke-dasharray: 176;
  stroke-dashoffset: 176;
  animation: dsDraw 0.7s ease-out 0.5s forwards;
}

.ds-loader-word {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: dsTrackIn 0.7s ease-out 0.55s forwards;
}
.ds-loader-name { font-family: 'Cinzel', serif; font-size: 26px; color: #e8eaf0; }
.ds-loader-name span { color: #8b93a6; }
.ds-loader-tag { font-family: 'Cinzel', serif; font-size: 11px; letter-spacing: 0.42em; color: #6f7a92; }

.ds-loader-track {
  width: 180px;
  height: 1px;
  background: rgba(139, 147, 166, 0.25);
  overflow: hidden;
}
.ds-loader-bar {
  width: 100%;
  height: 100%;
  background: #c9ced9;
  transform: scaleX(0);
  transform-origin: left;
  animation: dsProgress 1.45s cubic-bezier(0.4, 0, 0.2, 1) 0.1s forwards;
}

.ds-loader.ds-exit {
  animation: dsWipeUp 0.7s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}

@keyframes dsDraw { to { stroke-dashoffset: 0; } }
@keyframes dsTrackIn {
  from { opacity: 0; letter-spacing: 0.55em; }
  to { opacity: 1; letter-spacing: 0.18em; }
}
@keyframes dsProgress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes dsWipeUp { to { transform: translateY(-101%); } }

/* ---------- reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in { opacity: 1; transform: none; }

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

/* visible keyboard focus */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--champagne);
  outline-offset: 3px;
}