/* ═══════════════════════════════════════════════
   IXONEONE — Architecture & Interior Design
   Brutalist + Industrial Design System
   ═══════════════════════════════════════════════ */

/* ── CSS Variables / Design Tokens ── */
:root {
  /* Colors */
  --color-bg-primary: #000000;
  --color-bg-secondary: #000000;
  --color-bg-card: #141414;
  --color-bg-elevated: #1c1c1c;
  --color-concrete: #2d2d2d;
  --color-concrete-light: #3d3d3d;

  --color-text-primary: #f5f0eb;
  --color-text-secondary: #8c8580;
  --color-text-muted: #5a5550;

  --color-accent: #c4956a;
  --color-accent-light: #d4a574;
  --color-accent-dark: #b07d56;
  --color-accent-glow: rgba(196, 149, 106, 0.15);

  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(196, 149, 106, 0.3);

  /* Typography Base */
  --font-heading-en: 'Outfit', sans-serif;
  --font-body-en: 'Inter', sans-serif;
  
  --font-heading-th: 'Prompt', sans-serif;
  --font-body-th: 'Prompt', sans-serif;
  
  --font-heading-jp: 'Zen Kaku Gothic New', sans-serif;
  --font-body-jp: 'Zen Kaku Gothic New', sans-serif;
  
  --font-heading-cn: 'Noto Sans SC', sans-serif;
  --font-body-cn: 'Noto Sans SC', sans-serif;

  /* Default Typography */
  --font-heading: var(--font-heading-en);
  --font-body: var(--font-body-en);
  --font-mono: 'Space Mono', monospace;
}

/* Language Specific Overrides */
html[lang="th"] {
  --font-heading: var(--font-heading-th);
  --font-body: var(--font-body-th);
}
html[lang="jp"] {
  --font-heading: var(--font-heading-jp);
  --font-body: var(--font-body-jp);
}
html[lang="cn"] {
  --font-heading: var(--font-heading-cn);
  --font-body: var(--font-body-cn);
}

:root {
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  --spacing-3xl: 10rem;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container-max: 1400px;
  --container-narrow: 900px;
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* ── Utility Classes ── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
}

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

.label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.label::before {
  content: '';
  display: inline-block;
  width: 30px;
  height: 1px;
  background: var(--color-accent);
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-top: var(--spacing-sm);
}

.section-heading span {
  color: var(--color-accent);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-top: var(--spacing-md);
  line-height: 1.8;
}

/* ── Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ══════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background var(--transition-smooth),
              box-shadow var(--transition-smooth),
              backdrop-filter var(--transition-smooth);
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 4rem);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
  flex-shrink: 0;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-text-primary);
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  line-height: 1;
}

.nav__logo::after {
  content: '®';
  font-size: 0.5em;
  position: absolute;
  top: 0;
  right: -14px;
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-smooth);
}

.nav__link:hover {
  color: var(--color-text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background: var(--color-accent);
  padding: 0.65rem 1.5rem;
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
}

/* Mobile Menu */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.nav__hamburger span {
  display: block;
  width: 28px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(5.3px);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-5.3px);
}

/* ══════════════════════════════════════
   HERO SECTION
   ══════════════════════════════════════ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

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

.hero__bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35) contrast(1.1);
  transform: scale(1.05);
  transition: transform 10s ease, opacity 1.5s ease-in-out;
  opacity: 0;
}

.hero__bg img.active {
  opacity: 1;
}

.hero:hover .hero__bg img {
  transform: scale(1);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.95) 0%,
    rgba(10, 10, 10, 0.4) 40%,
    rgba(10, 10, 10, 0.2) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(3rem, 8vh, 6rem);
  width: 100%;
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  opacity: 0;
  animation: fadeSlideUp 1s 0.5s forwards;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--color-text-primary);
  opacity: 0;
  animation: fadeSlideUp 1s 0.7s forwards;
}

.hero__title span {
  display: block;
  color: var(--color-accent);
  font-size: 0.35em;
  letter-spacing: 0.15em;
  font-weight: 400;
  margin-top: 0.5em;
  font-family: var(--font-mono);
}

.hero__bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: var(--spacing-lg);
  opacity: 0;
  animation: fadeSlideUp 1s 0.9s forwards;
}

.hero__desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 400px;
  line-height: 1.8;
}

.hero__scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  animation: pulse 2s infinite;
}

.hero__scroll-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollLine 2s infinite;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ══════════════════════════════════════
   STATS BAR
   ══════════════════════════════════════ */
.stats {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  text-align: center;
}

.stats__item {
  position: relative;
}

.stats__item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

.stats__number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.stats__text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

/* ══════════════════════════════════════
   ABOUT SECTION
   ══════════════════════════════════════ */
.about {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.about__image-wrapper {
  position: relative;
  overflow: hidden;
}

.about__image-wrapper::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100px;
  height: 100px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
  z-index: 1;
  opacity: 0.5;
}

.about__image-wrapper::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  border-bottom: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
  z-index: 1;
  opacity: 0.5;
}

.about__image {
  width: 100%;
  height: 600px;
  object-fit: cover;
  filter: grayscale(20%) contrast(1.05);
  transition: all var(--transition-slow);
}

.about__image-wrapper:hover .about__image {
  filter: grayscale(0%) contrast(1.1);
  transform: scale(1.03);
}

.about__content {
  padding: var(--spacing-lg) 0;
}

.about__philosophy {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-primary);
  margin-top: var(--spacing-lg);
  padding-left: var(--spacing-md);
  border-left: 2px solid var(--color-accent);
}

.about__text {
  color: var(--color-text-secondary);
  margin-top: var(--spacing-md);
  line-height: 1.9;
}

.about__values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.about__value {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
}

.about__value:hover {
  border-color: var(--color-border-hover);
  background: var(--color-accent-glow);
}

.about__value-number {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

.about__value-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* ══════════════════════════════════════
   SERVICES SECTION
   ══════════════════════════════════════ */
.services {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  opacity: 0.3;
}

.services__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.services__header .section-desc {
  margin: var(--spacing-md) auto 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.service-card {
  background: var(--color-bg-card);
  padding: clamp(2rem, 3vw, 3rem);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  background: var(--color-bg-elevated);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-smooth);
}

.service-card:hover .service-card__icon {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.service-card__number {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-text-muted);
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-md);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.service-card__desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

.service-card__features {
  margin-top: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-card__feature {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-card__feature::before {
  content: '—';
  color: var(--color-accent);
}

/* ══════════════════════════════════════
   PROJECTS / PORTFOLIO SECTION
   ══════════════════════════════════════ */
.projects {
  padding: var(--spacing-3xl) 0;
}

.projects__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  gap: var(--spacing-md);
}

.projects__filters {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: none;
  border: 1px solid transparent;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.project-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 11;
  cursor: pointer;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(40%) brightness(0.7);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-card__image {
  filter: grayscale(0%) brightness(0.5);
  transform: scale(1.08);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.9) 0%,
    rgba(10, 10, 10, 0) 60%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  transition: all var(--transition-smooth);
}

.project-card__category {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  transform: translateY(10px);
  transition: transform var(--transition-smooth);
}

.project-card:hover .project-card__title {
  transform: translateY(0);
}

.project-card__info {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.75rem;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-smooth);
}

.project-card:hover .project-card__info {
  opacity: 1;
  transform: translateY(0);
}

.project-card__meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.project-card__arrow {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0;
  transform: translate(10px, -10px);
  transition: all var(--transition-smooth);
}

.project-card:hover .project-card__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.project-card__arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-text-primary);
  fill: none;
  stroke-width: 2;
}

/* ══════════════════════════════════════
   PROCESS SECTION
   ══════════════════════════════════════ */
.process {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
  position: relative;
}

.process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  opacity: 0.3;
}

.process__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.process__header .section-desc {
  margin: var(--spacing-md) auto 0;
}

.process__timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  top: 35px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--color-concrete);
}

.process-step {
  text-align: center;
  padding: 0 var(--spacing-md);
  position: relative;
}

.process-step__number {
  width: 70px;
  height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  border: 1px solid var(--color-concrete-light);
  background: var(--color-bg-secondary);
  position: relative;
  z-index: 1;
  transition: all var(--transition-smooth);
}

.process-step:hover .process-step__number {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
  transform: scale(1.1);
}

.process-step__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: var(--spacing-md);
}

.process-step__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
  line-height: 1.7;
}

/* ══════════════════════════════════════
   CONTACT SECTION
   ══════════════════════════════════════ */
.contact {
  padding: var(--spacing-3xl) 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
}

.contact__info {
  padding: var(--spacing-lg) 0;
}

.contact__tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-top: var(--spacing-md);
}

.contact__tagline span {
  color: var(--color-accent);
}

.contact__details {
  margin-top: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact__detail {
  display: flex;
  gap: var(--spacing-md);
}

.contact__detail-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.contact__detail-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.contact__detail-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact__detail-value {
  font-size: 1rem;
  color: var(--color-text-primary);
  margin-top: 0.25rem;
}

.contact__detail-value a {
  transition: color var(--transition-fast);
}

.contact__detail-value a:hover {
  color: var(--color-accent);
}

/* Contact Form */
.contact__form {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  padding: clamp(2rem, 3vw, 3rem);
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  transition: border-color var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--color-accent);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-muted);
}

.form__textarea {
  resize: vertical;
  min-height: 140px;
}

.form__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238c8580' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form__submit {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background: var(--color-accent);
  border: none;
  padding: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: var(--spacing-sm);
}

.form__submit:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(196, 149, 106, 0.2);
}

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.footer__brand-desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
  line-height: 1.7;
  max-width: 350px;
}

.footer__social {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--spacing-md);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
}

.footer__social-link svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-text-secondary);
  fill: none;
  stroke-width: 1.5;
  transition: stroke var(--transition-fast);
}

.footer__social-link:hover svg {
  stroke: var(--color-accent);
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.footer__col-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__col-link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__col-link:hover {
  color: var(--color-text-primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
}

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.footer__bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer__bottom-link {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
  color: var(--color-text-primary);
}

/* ══════════════════════════════════════
   MOBILE OVERLAY
   ══════════════════════════════════════ */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__link {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .process__timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }

  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats__grid {
    grid-template-columns: 1fr 1fr;
  }

    .stats__item::after {
    display: none;
  }

  .filter-btn {
    font-size: 0.6rem;
    padding: 0.4rem 0.7rem;
  }
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-concrete);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dark);
}

/* ── Selection ── */
::selection {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

/* ══════════════════════════════════════
   LANGUAGE SELECTOR
   ══════════════════════════════════════ */
.lang-selector {
  margin: 0;
  display: flex;
  align-items: center;
}
.lang-select {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-text-secondary);
  border-radius: 4px;
  padding: 0 0.5rem;
  height: 32px;
  box-sizing: border-box;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.lang-select:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}
.lang-select option {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .nav__inner { padding: 0 1rem; }
  .nav__logo { font-size: 1.25rem; }
  .nav__right { gap: 0.5rem; }
}


/* ══════════════════════════════════════
   HEADER & NAV HORIZONTAL ALIGNMENT FIX
   ══════════════════════════════════════ */
.nav__inner {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: space-between !important;
  width: 100% !important;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 4rem);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-text-primary);
  position: relative;
  white-space: nowrap;
  flex-shrink: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  line-height: 1 !important;
}

.nav__right {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 0.75rem !important;
  z-index: 1001;
  flex-shrink: 0 !important;
}

.lang-selector {
  margin: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  flex-shrink: 0 !important;
}

.lang-select {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-text-secondary);
  border-radius: 4px;
  padding: 0 0.5rem;
  height: 32px !important;
  box-sizing: border-box;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  outline: none;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all var(--transition-fast);
}

.lang-select:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

.lang-select option {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

.nav__hamburger {
  display: none;
  flex-direction: column !important;
  justify-content: center !important;
  gap: 6px !important;
  cursor: pointer;
  padding: 0 !important;
  height: 32px !important;
  width: 28px !important;
  box-sizing: border-box;
  z-index: 1001;
  flex-shrink: 0 !important;
}

@media (max-width: 768px) {
  .nav__links { display: none !important; }
  .nav__hamburger { display: flex !important; }
  .nav__inner { padding: 0 1rem !important; }
  .nav__logo { font-size: 1.2rem !important; }
  .nav__right { gap: 0.5rem !important; }
}


/* ══════════════════════════════════════
   PURE BLACK BACKGROUND & SUB-TOPIC CARDS
   ══════════════════════════════════════ */
body, 
.nav, 
.hero, 
.stats, 
.about, 
.services, 
.projects, 
.process, 
.contact, 
.footer {
  background-color: #000000 !important;
}

.nav.scrolled {
  background: rgba(0, 0, 0, 0.95) !important;
}

/* Sub-topic cards / text boxes */
.service-card,
.about__value,
.process-step,
.contact__form,
.expertise-block {
  background-color: #141414 !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.process-step {
  padding: var(--spacing-lg) var(--spacing-md) !important;
  border-radius: 4px;
}

.form__input,
.form__textarea,
.form__select {
  background-color: #000000 !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  color: var(--color-text-primary) !important;
}


/* ══════════════════════════════════════
   SERVICES 4-IN-A-ROW GRID ALIGNMENT
   ══════════════════════════════════════ */
.services__grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: var(--spacing-md) !important;
}

@media (max-width: 992px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 576px) {
  .services__grid {
    grid-template-columns: 1fr !important;
  }
}


/* ══════════════════════════════════════
   EXPERTISE BLOCK (NO BOX, CENTERED)
   ══════════════════════════════════════ */
.expertise-block {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  text-align: center !important;
  margin: var(--spacing-2xl) auto 0 auto !important;
  padding: var(--spacing-lg) 0 !important;
  width: 100% !important;
}

.expertise-title {
  text-align: center !important;
  margin: 0 auto var(--spacing-md) auto !important;
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.expertise-list {
  text-align: center !important;
  margin: 0 auto !important;
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  color: var(--color-text-secondary);
  line-height: 2.2;
  letter-spacing: 0.15em;
  font-weight: 300;
}


/* ══════════════════════════════════════
   PROCESS / RESOURCE TEAM APPROACH MOBILE (SINGLE COLUMN CENTERED)
   ══════════════════════════════════════ */
@media (max-width: 768px) {
  .process__timeline {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-xl) !important;
    align-items: center !important;
    justify-items: center !important;
  }

  .process__timeline::before {
    display: none !important;
  }

  .process-step {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    width: 100% !important;
    max-width: 420px !important;
    margin: 0 auto !important;
  }

  .process-step__number {
    margin: 0 auto var(--spacing-sm) auto !important;
  }

  .process-step__title {
    text-align: center !important;
    margin: 0 auto !important;
  }

  .process-step__desc {
    text-align: center !important;
    margin: var(--spacing-sm) auto 0 auto !important;
    max-width: 90% !important;
  }
}


/* ══════════════════════════════════════
   CONTACT SECTION MOBILE (STACKED UNDER EMAIL)
   ══════════════════════════════════════ */
@media (max-width: 992px) {
  .contact__grid {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-xl) !important;
  }

  .contact__form {
    width: 100 !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .form__row {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-sm) !important;
  }
}


/* ══════════════════════════════════════
   PROJECTS FILTERS (CENTERED & TOUCH SLIDABLE MOBILE)
   ══════════════════════════════════════ */
.projects__header {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  text-align: center !important;
  margin-bottom: var(--spacing-2xl) !important;
}

.projects__filters {
  display: flex !important;
  flex-wrap: wrap !important;
  justify-content: center !important;
  gap: 0.75rem !important;
  margin-top: var(--spacing-lg) !important;
  width: 100% !important;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(196, 149, 106, 0.1);
}

@media (max-width: 768px) {
  .projects__header {
    align-items: center !important;
    text-align: center !important;
  }

  .projects__filters {
    display: flex !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scroll-snap-type: x mandatory;
    padding: 0.5rem 1rem !important;
    margin-top: var(--spacing-md) !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
    scrollbar-width: none;
  }

  .projects__filters::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    scroll-snap-align: center;
    font-size: 0.7rem !important;
    padding: 0.4rem 0.8rem !important;
  }
}