/* ==========================================================================
   WEBZLE (웹즐 · webzle.com) — WZ-ARCH-001 Architecture & Interior Stylesheet
   Architecture: Semantic BEM + CSS Custom Properties (Light / Dark Mode)
   ========================================================================== */

:root,
[data-theme="light"] {
  --bg-page: #f6f6f4;
  --bg-tint: #eeeeec;
  --bg-surface: #ffffff;
  --bg-elevated: #fafaf8;
  --bg-dark: #141518;
  --bg-dark-card: #1d1f24;
  --bg-glass: rgba(20, 21, 24, 0.78);
  --bg-glass-light: rgba(255, 255, 255, 0.88);

  --text-main: #18181b;
  --text-sub: #4d4d54;
  --text-muted: #767680;
  --text-invert: #ffffff;
  --text-invert-sub: rgba(255, 255, 255, 0.76);
  --text-invert-muted: rgba(255, 255, 255, 0.52);

  --accent-gold: #c89d54;
  --accent-gold-hover: #b2863d;
  --accent-gold-soft: rgba(200, 157, 84, 0.14);
  --accent-blue: #3b63fb;
  --accent-blue-soft: rgba(59, 99, 251, 0.12);

  --border-subtle: rgba(24, 24, 27, 0.09);
  --border-strong: rgba(24, 24, 27, 0.18);
  --border-invert: rgba(255, 255, 255, 0.14);

  --shadow-sm: 0 8px 24px rgba(15, 17, 21, 0.04);
  --shadow-card: 0 20px 48px rgba(15, 17, 21, 0.07);
  --shadow-elevated: 0 32px 72px rgba(15, 17, 21, 0.14);

  --radius-xs: 0.8rem;
  --radius-sm: 1.4rem;
  --radius-md: 2.0rem;
  --radius-lg: 2.8rem;
  --radius-xl: 3.6rem;
  --radius-pill: 999rem;

  --container-max: 136rem;
  --container-narrow: 112rem;
  --gutter: 2.8rem;

  --font-sans: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-display: "Plus Jakarta Sans", "Pretendard Variable", "Pretendard", sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --bg-page: #0c0d10;
  --bg-tint: #12141a;
  --bg-surface: #171a22;
  --bg-elevated: #1e222d;
  --bg-dark: #090a0d;
  --bg-dark-card: #151820;
  --bg-glass: rgba(12, 13, 16, 0.85);
  --bg-glass-light: rgba(23, 26, 34, 0.88);

  --text-main: #f4f5f7;
  --text-sub: #c2c5d0;
  --text-muted: #858998;
  --text-invert: #ffffff;
  --text-invert-sub: rgba(255, 255, 255, 0.78);
  --text-invert-muted: rgba(255, 255, 255, 0.52);

  --accent-gold: #d4ab62;
  --accent-gold-hover: #e0ba74;
  --accent-gold-soft: rgba(212, 171, 98, 0.16);

  --border-subtle: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.2);
  --border-invert: rgba(255, 255, 255, 0.14);

  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.32);
  --shadow-card: 0 20px 48px rgba(0, 0, 0, 0.45);
  --shadow-elevated: 0 32px 72px rgba(0, 0, 0, 0.65);
}

/* --------------------------------------------------------------------------
   1. Base & Architectural Blueprint Grid Utilities
   -------------------------------------------------------------------------- */
body {
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  line-height: 1.65;
  letter-spacing: -0.02em;
  word-break: keep-all;
  transition: background-color 0.35s ease, color 0.35s ease;
}

.skip-link {
  position: fixed;
  top: -10rem;
  left: 2rem;
  z-index: 9999;
  padding: 1.2rem 2rem;
  background: var(--accent-gold);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-xs);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 2rem;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  position: relative;
  padding: 12rem 0;
  overflow: hidden;
}

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

.section--dark {
  background-color: var(--bg-dark);
  color: var(--text-invert);
}

.section--blueprint {
  background-image:
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 6.4rem 6.4rem;
}

/* Giant Background Watermark Text */
.watermark-text {
  position: absolute;
  left: 50%;
  bottom: -2rem;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: clamp(10rem, 18vw, 24rem);
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: rgba(24, 24, 27, 0.04);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 0;
}

[data-theme="dark"] .watermark-text,
.section--dark .watermark-text {
  color: rgba(255, 255, 255, 0.045);
}

/* --------------------------------------------------------------------------
   2. Typography & Section Headers (Antra Architectural Style)
   -------------------------------------------------------------------------- */
.section-head {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 28rem 1fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 6.4rem;
}

.section-head--center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.8rem;
  max-width: 78rem;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-main);
  width: fit-content;
}

.section--dark .section-tag {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-invert);
}

.section-tag::before {
  content: "";
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--accent-gold);
}

.section-title {
  font-size: clamp(3.2rem, 4.4vw, 5.4rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.section--dark .section-title {
  color: var(--text-invert);
}

.section-title em,
.hero__title em,
.page-hero__title em {
  font-style: normal;
  color: var(--accent-gold);
}

.section-desc {
  margin-top: 1.8rem;
  font-size: 1.7rem;
  color: var(--text-sub);
  max-width: 64rem;
  line-height: 1.7;
}

.section--dark .section-desc {
  color: var(--text-invert-sub);
}

/* --------------------------------------------------------------------------
   3. Buttons & Interactive Pills
   -------------------------------------------------------------------------- */
.btn-pill {
  display: inline-flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.8rem 0.8rem 0.8rem 2.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 1.5rem;
  font-weight: 700;
  transition: all 0.3s var(--ease-out);
}

.btn-pill__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.8rem;
  height: 3.8rem;
  border-radius: 50%;
  background: var(--accent-gold);
  color: #ffffff;
  transition: transform 0.3s var(--ease-out), background-color 0.3s ease;
}

.btn-pill__icon svg {
  width: 1.6rem;
  height: 1.6rem;
}

.btn-pill:hover {
  border-color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-pill:hover .btn-pill__icon {
  transform: rotate(45deg);
  background: var(--accent-gold-hover);
}

.btn-pill--dark {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.24);
  color: #ffffff;
  backdrop-filter: blur(10px);
}

.btn-pill--dark:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--accent-gold);
}

.btn-pill--gold {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: #ffffff;
  padding: 1.2rem 2.6rem;
}

.btn-pill--gold:hover {
  background: var(--accent-gold-hover);
  border-color: var(--accent-gold-hover);
}

/* --------------------------------------------------------------------------
   4. Site Header & Navigation (Official WEBZLE | 웹즐 Lockup)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.8rem 0;
  background: rgba(20, 21, 24, 0.72);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  transition: padding 0.3s ease, background-color 0.3s ease, transform 0.35s ease;
}

.site-header.is-scrolled {
  padding: 1.2rem 0;
  background: rgba(15, 16, 20, 0.94);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

.site-header__inner {
  max-width: 168rem;
  margin: 0 auto;
  padding: 0 3.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.4rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo img {
  height: 4.0rem;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.0rem 1.6rem;
  font-size: 1.5rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-pill);
  transition: color 0.25s ease, background-color 0.25s ease;
}

.main-nav__link:hover,
.main-nav__link.is-active,
.main-nav__link[aria-current="page"] {
  color: var(--accent-gold);
}

.main-nav__link svg {
  width: 1.3rem;
  height: 1.3rem;
  opacity: 0.7;
  transition: transform 0.25s ease;
}

.main-nav__item:hover > .main-nav__link svg {
  transform: rotate(180deg);
}

/* Dropdown Submenu */
.main-nav__dropdown {
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 0;
  min-width: 22rem;
  padding: 1.0rem;
  background: #181a20;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(1rem);
  transition: all 0.25s var(--ease-out);
}

.main-nav__item:hover .main-nav__dropdown,
.main-nav__item:focus-within .main-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__dropdown a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.0rem 1.4rem;
  font-size: 1.4rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  border-radius: var(--radius-xs);
  transition: background-color 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.main-nav__dropdown a:hover,
.main-nav__dropdown a[aria-current="page"] {
  background: rgba(200, 157, 84, 0.15);
  color: var(--accent-gold);
  padding-left: 1.8rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 1.0rem;
  color: #ffffff;
  padding-right: 0.8rem;
}

.header-phone__icon {
  width: 3.8rem;
  height: 3.8rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
}

.header-phone__icon svg {
  width: 1.7rem;
  height: 1.7rem;
}

.header-phone__meta {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.header-phone__label {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.6);
}

.header-phone__num {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
}

.icon-btn {
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

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

.icon-btn svg {
  width: 1.9rem;
  height: 1.9rem;
}

:root:not([data-theme="dark"]) .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

.mobile-menu-btn {
  display: none;
}

/* Mobile & Offcanvas Drawer */
.offcanvas {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(8, 9, 12, 0.72);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s var(--ease-out);
}

.offcanvas.is-open {
  opacity: 1;
  visibility: visible;
}

.offcanvas__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(42rem, 90vw);
  height: 100%;
  background: #141518;
  color: #ffffff;
  padding: 3.2rem 2.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease-out);
}

.offcanvas.is-open .offcanvas__panel {
  transform: translateX(0);
}

.offcanvas__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 2.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.offcanvas__nav {
  margin: 2.8rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.offcanvas__nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.4rem;
  font-size: 1.7rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  color: rgba(255, 255, 255, 0.88);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.offcanvas__nav a:hover,
.offcanvas__nav a[aria-current="page"] {
  background: rgba(200, 157, 84, 0.16);
  color: var(--accent-gold);
}

.offcanvas__nav a svg {
  width: 1.8rem;
  height: 1.8rem;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.offcanvas__nav a:hover svg {
  transform: translate(3px, -3px);
}

.offcanvas__info {
  padding-top: 2.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  gap: 1.0rem;
}

/* --------------------------------------------------------------------------
   5. Main Hero Section (Index) & Inner Page Hero Banner
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 92rem;
  padding: 18rem 0 11rem;
  display: flex;
  align-items: center;
  background-color: #111215;
  color: #ffffff;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.58) contrast(1.04);
  transform: scale(1.02);
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(14, 15, 19, 0.85) 0%,
    rgba(14, 15, 19, 0.52) 55%,
    rgba(14, 15, 19, 0.35) 100%
  );
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 34rem;
  gap: 4.8rem;
  align-items: end;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 1.0rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2.6rem;
}

.hero__eyebrow::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--accent-gold);
}

.hero__title {
  font-size: clamp(4.2rem, 6.2vw, 8.2rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.035em;
  margin-bottom: 2.8rem;
}

.hero__lead {
  font-size: 1.85rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 60rem;
  line-height: 1.7;
  margin-bottom: 4.0rem;
}

.hero__stat-card {
  background: rgba(20, 21, 26, 0.76);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  padding: 3.2rem;
}

.hero__stat-num {
  font-family: var(--font-display);
  font-size: 5.4rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent-gold);
  margin-bottom: 1.0rem;
}

.hero__stat-label {
  font-size: 1.6rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 1.2rem;
}

.hero__stat-desc {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.55;
}

.hero__specs {
  margin-top: 7.2rem;
  padding-top: 3.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
}

.hero__spec-item {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.hero__spec-num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-gold);
  padding: 0.5rem 1.0rem;
  border-radius: var(--radius-pill);
  background: rgba(200, 157, 84, 0.18);
}

.hero__spec-title {
  font-size: 1.55rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

/* Inner Page Hero Banner */
.page-hero {
  position: relative;
  padding: 18rem 0 10rem;
  background-color: #141518;
  color: #ffffff;
  text-align: center;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.42);
}

.page-hero__inner {
  position: relative;
  z-index: 2;
}

.page-hero__title {
  font-size: clamp(3.8rem, 5.2vw, 6.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.6rem;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 1.0rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.breadcrumb a:hover {
  color: #ffffff;
}

.breadcrumb__current {
  color: var(--accent-gold);
}

/* --------------------------------------------------------------------------
   6. 4-Card Architectural Service Grid
   -------------------------------------------------------------------------- */
.service-cards {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.4rem;
}

.service-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.6rem 3.0rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 32rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s ease, border-color 0.35s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: var(--accent-gold);
}

.service-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.6rem;
  margin-bottom: 3.6rem;
}

.service-card__title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
}

.service-card__icon {
  width: 5.2rem;
  height: 5.2rem;
  border-radius: 1.4rem;
  background: var(--accent-gold-soft);
  color: var(--accent-gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-card__icon svg {
  width: 2.6rem;
  height: 2.6rem;
}

.service-card__desc {
  font-size: 1.5rem;
  color: var(--text-sub);
  line-height: 1.68;
  margin-bottom: 2.4rem;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.service-card__link svg {
  width: 1.8rem;
  height: 1.8rem;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.service-card:hover .service-card__link svg,
.service-card__link:hover svg {
  transform: translate(3px, -3px);
}

/* --------------------------------------------------------------------------
   7. Dark Split Showcase (About / Philosophy Banner)
   -------------------------------------------------------------------------- */
.split-showcase {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5.6rem;
  align-items: center;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem 2.4rem;
  margin: 3.2rem 0;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 1.0rem;
  font-size: 1.55rem;
  font-weight: 600;
}

.check-item__badge {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--accent-gold);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.check-item__badge svg {
  width: 1.3rem;
  height: 1.3rem;
}

.split-showcase__media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.split-showcase__media img {
  width: 100%;
  height: 54rem;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   8. Interactive Services Split List (01~05 Hover/Click Preview)
   -------------------------------------------------------------------------- */
.service-interactive {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5.2rem;
  align-items: center;
}

.service-preview {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 16 / 12;
}

.service-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.service-preview__caption {
  position: absolute;
  left: 2.8rem;
  bottom: 2.8rem;
  right: 2.8rem;
  max-width: 42rem;
  padding: 2.2rem 2.6rem;
  border-radius: var(--radius-md);
  background: rgba(20, 21, 24, 0.78);
  backdrop-filter: blur(14px);
  color: #ffffff;
  font-size: 1.5rem;
  line-height: 1.6;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.service-list {
  display: flex;
  flex-direction: column;
}

.service-list__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.0rem;
  padding: 2.4rem 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.25s ease;
}

.service-list__left {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.service-list__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-muted);
}

.service-list__title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-main);
  transition: color 0.25s ease, transform 0.25s ease;
}

.service-list__arrow {
  width: 4.2rem;
  height: 4.2rem;
  border-radius: 50%;
  background: var(--bg-tint);
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.service-list__arrow svg {
  width: 1.6rem;
  height: 1.6rem;
}

.service-list__item:hover .service-list__title,
.service-list__item.is-active .service-list__title {
  color: var(--accent-gold);
  transform: translateX(6px);
}

.service-list__item:hover .service-list__arrow,
.service-list__item.is-active .service-list__arrow {
  background: var(--accent-gold);
  color: #ffffff;
  transform: rotate(45deg);
}

/* --------------------------------------------------------------------------
   9. Counter Strip & 3D Isometric Floorplan Centerpiece
   -------------------------------------------------------------------------- */
.counter-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3.2rem;
  margin-bottom: 6.4rem;
}

.counter-card {
  padding-bottom: 2.4rem;
  border-bottom: 1px solid var(--border-strong);
}

.counter-card__num {
  font-family: var(--font-display);
  font-size: clamp(4.2rem, 4.8vw, 6.0rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--text-main);
  margin-bottom: 1.2rem;
}

.counter-card__num span {
  color: var(--accent-gold);
}

.counter-card__title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

.counter-card__desc {
  font-size: 1.45rem;
  color: var(--text-muted);
}

.isometric-stage {
  position: relative;
  z-index: 2;
  max-width: 108rem;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.isometric-stage img {
  width: 100%;
  height: auto;
  display: block;
}

/* --------------------------------------------------------------------------
   10. 4-Step Process Cards (HOW WE WORK)
   -------------------------------------------------------------------------- */
.process-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.4rem;
}

.process-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.0rem 2.0rem 3.6rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.process-card__img {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  margin-bottom: 2.4rem;
}

.process-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.process-card__title {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 1.0rem;
  color: var(--text-main);
}

.process-card__title span {
  color: var(--accent-gold);
  margin-right: 0.4rem;
}

.process-card__desc {
  font-size: 1.45rem;
  color: var(--text-sub);
  line-height: 1.65;
  position: relative;
  z-index: 2;
}

.process-card__watermark {
  position: absolute;
  right: 1.6rem;
  bottom: -1.2rem;
  font-family: var(--font-display);
  font-size: 7.6rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(24, 24, 27, 0.05);
  pointer-events: none;
}

[data-theme="dark"] .process-card__watermark {
  color: rgba(255, 255, 255, 0.05);
}

/* --------------------------------------------------------------------------
   11. Portfolio Grid & Filter Tabs
   -------------------------------------------------------------------------- */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1.0rem;
  margin-bottom: 4.4rem;
}

.filter-tab {
  padding: 1.0rem 2.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-sub);
  transition: all 0.25s ease;
}

.filter-tab:hover,
.filter-tab.is-active {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: #ffffff;
}

.portfolio-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.6rem 2.8rem;
}

.portfolio-card {
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--ease-out);
}

.portfolio-card.is-hidden {
  display: none;
}

.portfolio-card:hover {
  transform: translateY(-6px);
}

.portfolio-card__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 4.6;
  margin-bottom: 2.0rem;
  box-shadow: var(--shadow-sm);
}

.portfolio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease-out);
}

.portfolio-card:hover .portfolio-card__media img {
  transform: scale(1.05);
}

.portfolio-card__badges {
  position: absolute;
  top: 1.8rem;
  left: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  z-index: 2;
}

.portfolio-card__badge {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-pill);
  background: rgba(20, 21, 24, 0.58);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.portfolio-card__title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.6rem;
  transition: color 0.2s ease;
}

.portfolio-card:hover .portfolio-card__title {
  color: var(--accent-gold);
}

.portfolio-card__meta {
  font-size: 1.45rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   12. Team Cards (Staggered 3-Column & Interactive List)
   -------------------------------------------------------------------------- */
.team-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.2rem;
  align-items: start;
}

.team-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-card);
  display: block;
}

.team-grid .team-card:nth-child(3n + 2) {
  margin-top: 4.4rem;
}

.team-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.team-card:hover img {
  transform: scale(1.04);
}

.team-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(12, 13, 16, 0.88) 0%,
    rgba(12, 13, 16, 0.22) 48%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.8rem;
  color: #ffffff;
}

.team-card__name {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.team-card__role {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

/* --------------------------------------------------------------------------
   13. Testimonials, Video Banner & Blog Cards
   -------------------------------------------------------------------------- */
.testimonial-box {
  position: relative;
  z-index: 2;
  max-width: 96rem;
  margin: 0 auto;
  text-align: center;
  padding: 5.6rem 4.8rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.testimonial-box__icon {
  width: 5.2rem;
  height: 5.2rem;
  margin: 0 auto 2.4rem;
  border-radius: 50%;
  background: var(--accent-gold-soft);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-box__quote {
  font-size: clamp(2.0rem, 2.6vw, 2.8rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--text-main);
  margin-bottom: 3.2rem;
}

.testimonial-box__author {
  display: inline-flex;
  align-items: center;
  gap: 1.4rem;
  text-align: left;
}

.testimonial-box__avatar {
  width: 5.4rem;
  height: 5.4rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-gold);
}

.testimonial-box__name {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
}

.testimonial-box__role {
  font-size: 1.35rem;
  color: var(--text-muted);
}

.video-cta {
  position: relative;
  min-height: 54rem;
  display: flex;
  align-items: flex-end;
  padding: 6.4rem 0;
  color: #ffffff;
  overflow: hidden;
}

.video-cta__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.video-cta__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.52);
}

.video-cta__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3.2rem;
}

.video-cta__play {
  width: 8.8rem;
  height: 8.8rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.38);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3.2rem;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.video-cta__play:hover {
  transform: scale(1.08);
  background: var(--accent-gold);
  border-color: var(--accent-gold);
}

.blog-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.6rem 2.8rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
}

.blog-card__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 11;
  margin-bottom: 2.0rem;
  box-shadow: var(--shadow-sm);
}

.blog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.blog-card:hover .blog-card__media img {
  transform: scale(1.05);
}

.blog-card__cat {
  position: absolute;
  top: 1.6rem;
  left: 1.6rem;
  padding: 0.5rem 1.3rem;
  border-radius: var(--radius-pill);
  background: var(--accent-gold);
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
}

.blog-card__meta {
  font-size: 1.35rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.blog-card__meta strong {
  color: var(--accent-gold);
}

.blog-card__title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.38;
  color: var(--text-main);
  margin-bottom: 1.0rem;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card__title {
  color: var(--accent-gold);
}

.blog-card__excerpt {
  font-size: 1.5rem;
  color: var(--text-sub);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   14. Pricing, FAQ Accordion, Details Pages & Contact Form
   -------------------------------------------------------------------------- */
.pricing-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2.8rem;
  align-items: stretch;
}

.pricing-promo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 4.0rem 3.2rem;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 52rem;
}

.pricing-promo__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.pricing-promo__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.48);
}

.pricing-promo__content {
  position: relative;
  z-index: 2;
}

.pricing-promo__title {
  font-size: 3.0rem;
  font-weight: 800;
  line-height: 1.3;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 4.0rem 3.4rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-card--featured {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-card);
}

.pricing-card__name {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 1.0rem;
}

.pricing-card__desc {
  font-size: 1.45rem;
  color: var(--text-sub);
  margin-bottom: 2.4rem;
}

.pricing-card__price {
  font-family: var(--font-display);
  font-size: 4.8rem;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1;
  padding-bottom: 2.4rem;
  margin-bottom: 2.4rem;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-card__price small {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
  margin-left: 0.4rem;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
  margin-bottom: 3.2rem;
}

/* FAQ Accordion */
.faq-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 4.8rem;
  align-items: start;
}

.faq-list {
  border-top: 1px solid var(--border-strong);
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-item__btn {
  width: 100%;
  padding: 2.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.0rem;
  text-align: left;
  font-size: 2.0rem;
  font-weight: 800;
  color: var(--text-main);
  transition: color 0.2s ease;
}

.faq-item__left {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.faq-item__num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-muted);
}

.faq-item.is-open .faq-item__btn {
  color: var(--accent-gold);
}

.faq-item__body {
  display: none;
  padding: 0 0 2.4rem 3.6rem;
  font-size: 1.6rem;
  color: var(--text-sub);
  line-height: 1.75;
}

.faq-item.is-open .faq-item__body {
  display: block;
}

/* Details Sidebar & Content Layout */
.details-layout {
  display: grid;
  grid-template-columns: 34rem 1fr;
  gap: 4.8rem;
  align-items: start;
}

.sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.8rem;
  margin-bottom: 2.8rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-card__title {
  font-size: 2.0rem;
  font-weight: 800;
  margin-bottom: 1.8rem;
}

.sidebar-menu {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.sidebar-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.3rem 1.6rem;
  border-radius: var(--radius-xs);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.is-active {
  background: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
}

.sidebar-menu a svg {
  width: 1.8rem;
  height: 1.8rem;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.sidebar-menu a:hover svg {
  transform: translate(3px, -3px);
}

.sidebar-help {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 4.0rem 2.8rem;
  text-align: center;
  color: #ffffff;
}

.sidebar-help__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sidebar-help__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.36);
}

.sidebar-help__content {
  position: relative;
  z-index: 2;
}

/* Project Metadata Strip & Area Spec Boxes */
.project-meta-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2.0rem;
  padding: 2.8rem 0;
  margin-bottom: 3.6rem;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.project-meta-item span {
  display: block;
  font-size: 1.3rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.project-meta-item strong {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
}

.area-spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 4.0rem 0;
  box-shadow: var(--shadow-sm);
}

.area-spec-cell {
  padding: 3.6rem 2.4rem;
  text-align: center;
  border-right: 1px solid var(--border-subtle);
}

.area-spec-cell:last-child {
  border-right: none;
}

.area-spec-cell strong {
  display: block;
  font-family: var(--font-display);
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

.area-spec-cell span {
  font-size: 1.45rem;
  color: var(--text-muted);
}

/* Progress Bars (Services & Team Details) */
.skill-bars {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  margin-top: 2.8rem;
}

.skill-bar__head {
  display: flex;
  justify-content: space-between;
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.skill-bar__track {
  height: 0.6rem;
  background: var(--border-strong);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.skill-bar__fill {
  height: 100%;
  background: var(--accent-gold);
  border-radius: var(--radius-pill);
}

/* Contact Form & Newsletter */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5.6rem;
  align-items: start;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.0rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1.5rem 2.0rem;
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-size: 1.5rem;
  color: var(--text-main);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-textarea {
  border-radius: var(--radius-md);
  min-height: 15rem;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-soft);
}

.newsletter-form {
  max-width: 52rem;
  margin: 3.2rem auto 0;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 1.0rem;
}

.newsletter-form input {
  flex: 1;
  font-size: 1.6rem;
  padding: 0.8rem 0;
  color: var(--text-main);
}

.newsletter-form input:focus {
  outline: none;
}

/* --------------------------------------------------------------------------
   15. Architectural Dark Footer (Official WEBZLE | 웹즐 Lockup + Watermark)
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  background-color: #111215;
  color: #ffffff;
  padding: 9.6rem 0 4.8rem;
  overflow: hidden;
}

.site-footer__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 4.8rem;
  padding-bottom: 6.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__brand p {
  margin-top: 2.0rem;
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  max-width: 32rem;
}

.site-footer__heading {
  font-size: 1.6rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 2.0rem;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.site-footer__links a {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease, transform 0.2s ease;
}

.site-footer__links a:hover {
  color: var(--accent-gold);
}

.site-footer__contact-phone {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  color: #ffffff;
  display: block;
  margin-bottom: 0.8rem;
}

.site-footer__contact-email {
  font-family: var(--font-display);
  font-size: 2.0rem;
  font-weight: 700;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 2.4rem;
}

.site-footer__socials {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer__socials a:hover {
  color: var(--accent-gold);
}

.site-footer__bottom {
  position: relative;
  z-index: 2;
  padding-top: 3.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.56);
}

.site-footer__watermark {
  position: relative;
  z-index: 1;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(8rem, 19vw, 25rem);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.06);
  margin-top: 2.4rem;
  user-select: none;
  pointer-events: none;
}

/* Back to Top Floating Button */
.back-to-top {
  position: fixed;
  right: 2.8rem;
  bottom: 2.8rem;
  z-index: 900;
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 50%;
  background: var(--accent-gold);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(1rem);
  transition: all 0.3s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   16. Responsive Breakpoints (1200px / 992px / 768px / 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .main-nav,
  .header-phone {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .service-cards,
  .process-grid,
  .counter-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-layout {
    grid-template-columns: 1fr;
  }
  .project-meta-strip {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .section {
    padding: 8.8rem 0;
  }
  .section-head,
  .hero__grid,
  .split-showcase,
  .service-interactive,
  .faq-layout,
  .details-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3.6rem;
  }
  .portfolio-grid,
  .blog-grid,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid .team-card:nth-child(3n + 2) {
    margin-top: 0;
  }
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .area-spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 2.0rem;
  }
  .site-header__inner {
    padding: 0 2.0rem;
  }
  .header-actions .btn-pill {
    display: none;
  }
  .hero {
    min-height: auto;
    padding: 14rem 0 8rem;
  }
  .hero__specs,
  .service-cards,
  .process-grid,
  .counter-grid,
  .portfolio-grid,
  .blog-grid,
  .team-grid,
  .check-grid,
  .form-grid,
  .project-meta-strip,
  .about-collage,
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
  .video-cta__inner,
  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.6rem;
  }
}