/* =============================================
   ARKU INTERIORS — Division Visual System v4
   Official Brand Palette (from brand guidelines):
     Night       #0C0B0B   — primary dark / text
     Dark Purple #331F29   — signature accent / only colored bg
     White       #FFFFFF   — primary light background
   ============================================= */

:root {
  /* ── ARKU INTERIORS OFFICIAL BRAND PALETTE ── */
  --int-bg:          #EFE7EE;    /* Light mauve blush — primary section background */
  --int-bg-2:        #E4D9E3;    /* Deeper purple tint — alternate section background */
  --int-bg-dark:     #331F29;    /* Dark Purple — the ONLY allowed colored accent bg */
  --int-bg-night:    #0C0B0B;    /* Night — hero background (darkest) */
  --int-bg-card:     #1A1412;    /* Warm lifted card for gallery items */
  --int-fg:          #0C0B0B;    /* Night — primary text on light sections */
  --int-fg-dim:      rgba(12, 11, 11, 0.60);
  --int-fg-muted:    rgba(12, 11, 11, 0.38);
  --int-fg-light:    #FFFFFF;    /* White — text on dark purple sections */
  --int-fg-light-dim: rgba(255, 255, 255, 0.68);
  --int-fg-hero:     #FFFFFF;    /* White — hero text on dark image */
  --int-fg-hero-dim: rgba(255, 255, 255, 0.70);
  --int-accent:      #331F29;    /* Dark Purple — links, accents, hover states */
  --int-accent-lt:   #4A2C3A;    /* Lifted dark purple on hover */
  --int-line:        rgba(51, 31, 41, 0.18);     /* hairlines on purple-tint sections */
  --int-line-dark:   rgba(255, 255, 255, 0.14);  /* hairlines on dark purple sections */
}

/* ── NAV (Interiors page) ─────────────────── */
/* Global cream nav-scrolled state applies — no override needed */

/* ── HERO ─────────────────────────────────── */
.int-hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--int-bg-night);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: clamp(6.5rem, 12vh, 9.5rem);
}

.int-hero__image { position: absolute; inset: 0; }

.int-hero__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.52) contrast(1.08);
  transform: scale(1.05);
  transition: transform 8s ease-out;
}

.int-hero__image.loaded img { transform: scale(1); }

.int-hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(12,11,11,0.60) 0%, transparent 25%),
    linear-gradient(to top, rgba(12,11,11,0.96) 0%, rgba(51,31,41,0.45) 50%, rgba(12,11,11,0.12) 100%);
  z-index: 1;
}

.int-hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  margin-top: auto;
  padding: var(--gutter);
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.int-hero__title {
  font-family: var(--f-display);
  font-size: var(--fs-3xl);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--int-fg-hero);
  margin-bottom: clamp(1.25rem, 2.5vw, 2rem);
}

.int-hero__sub {
  font-size: var(--fs-md);
  font-weight: 300;
  color: var(--int-fg-hero-dim);
  max-width: 42ch;
  line-height: 1.65;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.int-hero .btn {
  background: var(--int-bg-dark);
  color: var(--int-fg-light);
  border: 1px solid rgba(255, 255, 255, 0.30);
}
.int-hero .btn:hover {
  background: #FFFFFF;
  color: var(--int-bg-night);
}

.int-hero .btn-outline {
  background: transparent;
  color: var(--int-fg-hero);
  border-color: rgba(255, 255, 255, 0.35);
}
.int-hero .btn-outline:hover {
  border-color: var(--int-fg-hero);
  background: rgba(255, 255, 255, 0.08);
}

/* ── INT INTRO ────────────────────────────── */
.int-intro {
  background: var(--int-bg);   /* Light mauve blush */
  padding: var(--sp-2xl) var(--gutter);
}

.int-intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.int-intro__image {
  position: relative;
  height: clamp(340px, 45vw, 600px);
  overflow: hidden;
  border: 1px solid var(--int-line);
}

.int-intro__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.int-intro__title {
  font-family: var(--f-display);
  font-size: var(--fs-2xl);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.025em;
  color: var(--int-fg);        /* Night */
  margin-bottom: 1.25rem;
}

.int-intro__desc {
  font-size: var(--fs-md);
  color: var(--int-fg-dim);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

/* ── PROCESS PILLARS — DARK PURPLE SECTION ── */
/* Dark Purple is the ONLY allowed colored background per brand guidelines */
.int-pillars {
  background: var(--int-bg-dark);   /* Brand Dark Purple #331F29 */
  padding: var(--sp-2xl) var(--gutter);
  border-top: 1px solid var(--int-line-dark);
  border-bottom: 1px solid var(--int-line-dark);
}

.int-pillars__header { margin-bottom: clamp(2rem, 4vw, 3rem); }

.int-pillars__title {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  font-weight: 400;
  color: var(--int-fg-light);    /* White on dark purple */
  letter-spacing: -0.01em;
}

.int-pillars__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid var(--int-line-dark);
}

.int-pillar {
  border-right: 1px solid var(--int-line-dark);
  padding: clamp(2rem, 3.5vw, 3.25rem) clamp(1rem, 1.5vw, 1.75rem);
  box-sizing: border-box;
}

.int-pillar:first-child { padding-left: 0; }
.int-pillar:last-child { border-right: none; padding-right: 0; }

.int-pillar__num {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.38);    /* Muted white — subtle on dark purple */
  letter-spacing: 0.13em;
  font-weight: 500;
  margin-bottom: 1rem;
}

.int-pillar__title {
  font-family: var(--f-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  color: var(--int-fg-light);    /* White */
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
  line-height: 1.15;
}

.int-pillar__desc {
  font-size: var(--fs-xs);
  color: var(--int-fg-light-dim);
  line-height: 1.65;
}

/* ── INT PROCESS STEPS ─────────────────────── */
.int-process {
  background: var(--int-bg-2);   /* Warm near-white */
  padding: var(--sp-xl) var(--gutter);
}

.int-process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(2rem, 4vw, 4rem);
  border-top: 1px solid var(--int-line);
}

.int-process__step {
  padding: clamp(2rem, 3.5vw, 3.25rem) clamp(1rem, 1.5vw, 2rem);
  border-right: 1px solid var(--int-line);
  position: relative;
  box-sizing: border-box;
}

.int-process__step:first-child { padding-left: 0; }
.int-process__step:last-child { border-right: none; padding-right: 0; }

.int-process__number {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: #6B3D5A;    /* Lifted plum — reads clearly on deeper purple-tint bg */
  letter-spacing: 0.12em;
  font-weight: 500;
  margin-bottom: 1.1rem;
}

.int-process__step-title {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  font-weight: 400;
  color: var(--int-fg);        /* Night */
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.int-process__desc {
  font-size: var(--fs-sm);
  color: var(--int-fg-dim);
  line-height: 1.65;
}

.int-process__arrow {
  position: absolute;
  right: -10px; top: 50%;
  transform: translateY(-50%);
  color: rgba(12, 11, 11, 0.25);
  font-size: 1.1rem;
  z-index: 2;
  background: var(--int-bg-2);
  padding: 0.2rem;
  line-height: 1;
}

.int-process__step:last-child .int-process__arrow { display: none; }

/* ── BESPOKE FURNITURE — DARK PURPLE SECTION ── */
.int-furniture {
  background: var(--int-bg-dark);   /* Brand Dark Purple */
  padding: var(--sp-2xl) var(--gutter);
  border-top: 1px solid var(--int-line-dark);
  border-bottom: 1px solid var(--int-line-dark);
}

.int-furniture__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.int-furniture__images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: clamp(200px, 28vw, 300px) clamp(160px, 20vw, 220px);
  gap: 5px;
}

.int-furniture__img { overflow: hidden; border: 1px solid var(--int-line-dark); }
.int-furniture__img:first-child { grid-column: 1 / -1; }

.int-furniture__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.int-furniture__img:hover img { transform: scale(1.04); }

.int-furniture__title {
  font-family: var(--f-display);
  font-size: var(--fs-2xl);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.025em;
  color: var(--int-fg-light);    /* White on dark purple */
  margin-bottom: 1.25rem;
}

.int-furniture__desc {
  font-size: var(--fs-md);
  color: var(--int-fg-light-dim);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

/* ── GALLERY GRID ─────────────────────────── */
.int-projects {
  background: var(--int-bg);   /* Light mauve blush */
}

.int-projects__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: clamp(2rem, 4vw, 3rem) var(--gutter);
  border-bottom: 1px solid var(--int-line);
}

.int-projects__title {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  font-weight: 400;
  color: var(--int-fg);        /* Night */
}

.int-gallery__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;   /* 2-col: left large, right 2 stacked */
  grid-template-rows: 1fr 1fr;
  gap: 3px;
  background: var(--int-bg-night);   /* Dark gap between photos — not mauve */
  height: clamp(480px, 62vw, 760px);
}

.int-gallery__item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  height: 100%;                      /* Fill grid row completely */
  min-height: clamp(180px, 25vw, 360px);
  background: var(--int-bg-card);   /* Dark warm card base for photos */
}

.int-gallery__item:first-child { grid-row: 1 / 3; }

.int-gallery__img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.int-gallery__item:hover .int-gallery__img,
.int-gallery__item:focus-visible .int-gallery__img { transform: scale(1.04); }

/* Dark gradient overlay on gallery photos — fine because photos need contrast */
.int-gallery__info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(12,11,11,0.92) 0%, rgba(12,11,11,0.3) 70%, transparent 100%);
  transform: translateY(4px);
  opacity: 0.85;
  transition: opacity var(--dur-med), transform var(--dur-med);
}

.int-gallery__item:hover .int-gallery__info,
.int-gallery__item:focus-visible .int-gallery__info { opacity: 1; transform: translateY(0); }

.int-gallery__name {
  font-family: var(--f-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  color: #FFFFFF;
  line-height: 1.1;
}

.int-gallery__meta {
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.1em;
  font-weight: 500;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

/* ── CTA — DARK PURPLE SECTION ── */
.int-cta {
  background: var(--int-bg-dark);   /* Brand Dark Purple */
  padding: var(--sp-2xl) var(--gutter);
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--int-line-dark);
}

.int-cta__title {
  font-family: var(--f-display);
  font-size: var(--fs-2xl);
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--int-fg-light);    /* White on dark purple */
  margin-bottom: 0.75rem;
}

.int-cta__sub {
  font-size: var(--fs-md);
  color: var(--int-fg-light-dim);
  margin-bottom: 2.25rem;
}

.int-cta__buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── FOOTER (Interiors page) ──────────────── */
/* Global dark ink footer applies — no override needed */

/* ══ RESPONSIVE ═══════════════════════════════ */
@media (max-width: 1200px) {
  .int-gallery__grid {
    grid-template-columns: 1fr 1fr;
  }
  .int-gallery__item:first-child { grid-row: 1 / 3; }
}

@media (max-width: 1100px) {
  .int-pillars__grid { grid-template-columns: repeat(3, 1fr); }
  .int-pillar {
    border-right: 1px solid var(--int-line-dark);
    border-bottom: 1px solid var(--int-line-dark);
    padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1rem, 1.5vw, 1.5rem);
  }
  .int-pillar:nth-child(3n+1) { padding-left: 0; }
  .int-pillar:nth-child(3n) { border-right: none; padding-right: 0; }
  .int-pillar:nth-last-child(-n+3) { border-bottom: none; }
}

@media (max-width: 1024px) {
  .int-intro__grid { grid-template-columns: 1fr; }
  .int-furniture__grid { grid-template-columns: 1fr; }
  .int-process__steps { grid-template-columns: repeat(2, 1fr); }
  .int-process__step { border-bottom: 1px solid var(--int-line); }
  .int-process__step:nth-child(2) { border-right: none; }
  .int-process__arrow { display: none; }
}

@media (max-width: 900px) {
  /* Tablet portrait: pillars 2-col */
  .int-pillars__grid { grid-template-columns: repeat(2, 1fr); }
  .int-pillar { border-right: 1px solid var(--int-line-dark); border-bottom: 1px solid var(--int-line-dark); padding: 1.75rem 1.25rem; }
  .int-pillar:nth-child(2n) { border-right: none; }
  .int-pillar:nth-last-child(-n+2) { border-bottom: none; }
  /* Gallery: stay 2-col on tablet portrait */
  .int-gallery__grid { grid-template-columns: 1fr 1fr; }
  /* Intro + furniture: 1-col */
  .int-intro__grid { grid-template-columns: 1fr; }
  .int-furniture__grid { grid-template-columns: 1fr; }
  /* Process: 2-col on tablet */
  .int-process__steps { grid-template-columns: repeat(2, 1fr); }
  .int-process__arrow { display: none; }
  /* Hero CTA stacks */
  .int-hero__ctas { flex-wrap: wrap; gap: 0.75rem; }
}

@media (max-width: 768px) {
  .int-hero__title { font-size: clamp(2rem, 10vw, 3.5rem); }
  .int-hero__sub { font-size: var(--fs-base); max-width: 100%; }

  .int-gallery__grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    height: auto;
  }

  .int-gallery__item { height: clamp(240px, 60vw, 340px); }
  .int-gallery__item:first-child { height: clamp(300px, 70vw, 440px); grid-row: auto; }
  .int-gallery__info { opacity: 1; transform: none; }

  .int-process__steps { grid-template-columns: 1fr; }
  .int-process__step:nth-child(2) { border-right: none; }
  .int-process__step { border-right: none; }
}

@media (max-width: 480px) {
  .int-hero__sub { display: none; }
  /* Pillars: 2-col on small phones */
  .int-pillars__grid { grid-template-columns: repeat(2, 1fr); }
  .int-pillar { border-right: 1px solid var(--int-line-dark); border-bottom: 1px solid var(--int-line-dark); padding: 1.25rem 1rem; }
  .int-pillar:nth-child(2n) { border-right: none; }
  .int-pillar:nth-last-child(-n+2) { border-bottom: none; }
  /* Hero CTA buttons stack */
  .int-hero__ctas { flex-direction: column; align-items: flex-start; }
  .int-hero__ctas .btn { width: 100%; justify-content: center; }
}

@media (max-width: 375px) {
  .int-hero__title { font-size: clamp(1.8rem, 11vw, 2.5rem); }
  /* Gallery items shorter on tiny screens */
  .int-gallery__item { height: 220px; }
  .int-gallery__item:first-child { height: 260px; }
  /* Furniture section stack  */
  .int-furniture__grid { grid-template-columns: 1fr; }
}