/* ═══════════════════════════════════════════════════════════════
   VIRTEXA SOLUTIONS — Premium Stylesheet
   Design System: 8px grid, 60-30-10 color rule, WCAG AA
   ═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Colors */
  --clr-dominant-a:  #1a1a1a;        /* 60% dominant dark */
  --clr-dominant-b:  #462b3d;        /* 60% dominant plum */
  --clr-secondary:   #fdf8f5;        /* 30% light cream */
  --clr-accent:      #c19a83;        /* 10% rose gold */
  --clr-accent-dim:  rgba(193,154,131,.18);
  --clr-accent-glow: rgba(193,154,131,.35);

  /* Text */
  --txt-primary:    #fdf8f5;
  --txt-secondary:  rgba(253,248,245,.72);
  --txt-muted:      rgba(253,248,245,.46);
  --txt-on-light:   #1a1a1a;
  --txt-plum:       #462b3d;

  /* Glass */
  --glass-bg:       rgba(26,26,26,.55);
  --glass-border:   rgba(253,248,245,.10);
  --glass-hover:    rgba(253,248,245,.06);

  /* Spacing (8px grid) */
  --sp-1:  8px;
  --sp-2:  16px;
  --sp-3:  24px;
  --sp-4:  32px;
  --sp-5:  40px;
  --sp-6:  48px;
  --sp-8:  64px;
  --sp-10: 80px;
  --sp-12: 96px;
  --sp-16: 128px;

  /* Typography scale */
  --fs-xs:   0.75rem;   /* 12px */
  --fs-sm:   0.875rem;  /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-lg:   1.125rem;  /* 18px */
  --fs-xl:   1.25rem;   /* 20px */
  --fs-2xl:  1.5rem;    /* 24px */
  --fs-3xl:  2rem;      /* 32px */
  --fs-4xl:  2.75rem;   /* 44px */
  --fs-5xl:  3.75rem;   /* 60px */
  --fs-6xl:  5rem;      /* 80px */

  /* Transitions */
  --t-fast:   150ms ease-out;
  --t-mid:    250ms ease-out;
  --t-std:    300ms ease-out;  /* max for interactions */
  --t-enter:  600ms ease-out;  /* entrance animations (non-blocking) */

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,.25);
  --shadow-md:  0 8px 24px rgba(0,0,0,.35);
  --shadow-lg:  0 20px 48px rgba(0,0,0,.45);
  --shadow-accent: 0 8px 32px rgba(193,154,131,.2);

  /* Border radius */
  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  40px;
  --radius-full:9999px;

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(var(--sp-3), 5vw, var(--sp-8));
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--clr-dominant-a);
  color: var(--txt-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* prefers-reduced-motion: disable all animations */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal-up { opacity: 1 !important; transform: none !important; }
}

/* ── Layout utilities ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-header {
  margin-bottom: var(--sp-8);
  max-width: 640px;
}

.section-tag {
  font-family: 'Outfit', sans-serif;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-2);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.section-tag--light {
  color: var(--clr-accent);
}

.section-headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl));
  font-weight: 600;
  line-height: 1.15;
  color: var(--txt-primary);
  letter-spacing: -0.01em;
}

.section-headline--light {
  color: var(--txt-primary);
}

.section-headline em {
  font-style: italic;
  color: var(--clr-accent);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: 'Outfit', sans-serif;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform var(--t-std), box-shadow var(--t-std), background var(--t-std), color var(--t-std);
  min-height: 48px; /* ≥44px tap target */
  will-change: transform;
}

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-dominant-a);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
  background: #d4ae97;
}
.btn--primary:active { transform: translateY(0); }

.btn--outline {
  border: 1.5px solid rgba(253,248,245,.35);
  color: var(--txt-primary);
}
.btn--outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

.btn--ghost {
  color: var(--txt-secondary);
  padding-left: 0;
}
.btn--ghost:hover {
  color: var(--clr-accent);
  transform: translateX(4px);
}
.btn--ghost:hover span { margin-left: 2px; }

.btn--full { width: 100%; justify-content: center; }

/* ── Reveal Animations ──────────────────────────────────────── */
.reveal-up {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--t-enter), transform var(--t-enter);
  will-change: opacity, transform;
}
.reveal-ready .reveal-up {
  opacity: 0;
  transform: translateY(20px);
}
.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

/* ═══════════════════════════════════════════ NAVIGATION ═══ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--t-std), backdrop-filter var(--t-std), box-shadow var(--t-std);
}

.nav.scrolled {
  background: rgba(26,26,26,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--glass-border);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--sp-3) var(--container-pad);
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}

.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 1px;
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--txt-primary);
  flex-shrink: 0;
}

.nav__logo-mark {
  color: var(--clr-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-left: auto;
}

.nav__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--txt-secondary);
  transition: color var(--t-mid);
  padding: var(--sp-1) 0;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--clr-accent);
  transition: width var(--t-std);
}

.nav__link:hover { color: var(--txt-primary); }
.nav__link:hover::after { width: 100%; }

.nav__cta { margin-left: var(--sp-2); }

/* Burger — hidden on desktop */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--sp-1);
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--txt-primary);
  border-radius: 2px;
  transition: transform var(--t-std), opacity var(--t-std);
}

.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,26,26,.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  justify-content: center;
  align-items: center;
  z-index: 99;
}

.nav__mobile ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
}

.nav__mobile-link {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-3xl);
  color: var(--txt-secondary);
  transition: color var(--t-mid);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav__mobile-link:hover { color: var(--txt-primary); }
.nav__mobile-cta { color: var(--clr-accent) !important; }

/* ════════════════════════════════════════════════ HERO ═══ */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--sp-16) var(--container-pad) var(--sp-12);
}

/* Animated orb background */
.orb-field {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  will-change: transform;
}

.orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(70,43,61,.9) 0%, transparent 70%);
  top: -100px;
  left: -100px;
  animation: orbFloat1 18s ease-in-out infinite;
}

.orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(193,154,131,.35) 0%, transparent 70%);
  bottom: -80px;
  right: -80px;
  animation: orbFloat2 22s ease-in-out infinite;
}

.orb--3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(70,43,61,.6) 0%, transparent 70%);
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  animation: orbFloat3 15s ease-in-out infinite;
}

.orb--4 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(193,154,131,.2) 0%, transparent 70%);
  top: 20%;
  right: 30%;
  animation: orbFloat4 20s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(60px, 40px) scale(1.08); }
  66%       { transform: translate(-30px, 70px) scale(0.95); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40%       { transform: translate(-50px, -60px) scale(1.1); }
  70%       { transform: translate(30px, -30px) scale(0.92); }
}
@keyframes orbFloat3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50%       { transform: translate(-55%, -45%) scale(1.15); }
}
@keyframes orbFloat4 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(-40px, 30px); }
}

/* Noise texture overlay */
.noise {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* Grid overlay */
.grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(253,248,245,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(253,248,245,.03) 1px, transparent 1px);
  background-size: 64px 64px;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  text-align: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent-glow);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}

.dot {
  width: 6px;
  height: 6px;
  background: var(--clr-accent);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(0.8); }
}

.hero__headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-4xl), 7vw, var(--fs-6xl));
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--txt-primary);
  margin-bottom: var(--sp-4);
}

.hero__headline em {
  font-style: italic;
  background: linear-gradient(135deg, var(--clr-accent) 0%, #e8c4a8 50%, var(--clr-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}

.hero__sub {
  font-size: clamp(var(--fs-base), 2vw, var(--fs-lg));
  color: var(--txt-secondary);
  max-width: 580px;
  margin: 0 auto var(--sp-6);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: var(--sp-5);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--txt-muted);
  z-index: 2;
  animation: scrollBob 2.5s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  order: -1;
}

@keyframes scrollBob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ═══════════════════════════════════════════════ ABOUT ═══ */
.about {
  padding: var(--sp-16) 0;
  position: relative;
  background: linear-gradient(
    180deg,
    var(--clr-dominant-a) 0%,
    #211520 50%,
    var(--clr-dominant-a) 100%
  );
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--sp-12) var(--sp-10);
  align-items: start;
}

.about__divider {
  width: 48px;
  height: 2px;
  background: var(--clr-accent);
  margin-top: var(--sp-4);
  border-radius: 2px;
}

.about__lead {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-lg), 2vw, var(--fs-2xl));
  line-height: 1.5;
  color: var(--txt-primary);
  margin-bottom: var(--sp-4);
  font-style: italic;
}

.about__body {
  font-size: var(--fs-base);
  color: var(--txt-secondary);
  line-height: 1.75;
  margin-bottom: var(--sp-3);
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
  margin-top: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--glass-border);
}

.stat__num {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--txt-primary);
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

.stat__suffix {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  color: var(--clr-accent);
}

.stat__label {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

/* ════════════════════════════════════════════ SERVICES ═══ */
.services {
  padding: var(--sp-16) 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

/* Service Card */
.service-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: border-color var(--t-std), box-shadow var(--t-std);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Glow border — animated gradient on hover */
.service-card__glow {
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-dominant-b), var(--clr-accent));
  background-size: 300% 300%;
  opacity: 0;
  transition: opacity var(--t-std);
  z-index: 0;
  pointer-events: none;
}

.service-card:hover .service-card__glow {
  opacity: 1;
  animation: glowSpin 2.5s linear infinite;
}

@keyframes glowSpin {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.service-card__inner {
  position: relative;
  z-index: 1;
  background: #1e1219;
  margin: 1px;
  border-radius: calc(var(--radius-md) - 1px);
  padding: var(--sp-5);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transition: background var(--t-std), transform var(--t-std);
}

.service-card:hover .service-card__inner {
  background: #251621;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  background: var(--clr-accent-dim);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background var(--t-std), color var(--t-std);
}

.service-card:hover .service-card__icon {
  background: rgba(193,154,131,.28);
}

.service-card__title {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--txt-primary);
  line-height: 1.3;
}

.service-card__desc {
  font-size: var(--fs-sm);
  color: var(--txt-secondary);
  line-height: 1.7;
  flex: 1;
}

/* Hidden content reveal on hover */
.service-card__reveal {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--t-std), opacity var(--t-std);
}

.service-card:hover .service-card__reveal {
  max-height: 200px;
  opacity: 1;
}

.service-card__features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: var(--sp-2);
  border-top: 1px solid var(--glass-border);
}

.service-card__features li {
  font-size: var(--fs-xs);
  color: var(--clr-accent);
  letter-spacing: 0.03em;
  padding-left: 14px;
  position: relative;
}

.service-card__features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  opacity: 0.6;
}

.service-card__cta {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--clr-accent);
  opacity: 0;
  margin-top: auto;
  transition: opacity var(--t-std);
}

.service-card:hover .service-card__cta { opacity: 1; }

/* CTA card */
.service-card--cta {
  background: linear-gradient(135deg, var(--clr-dominant-b) 0%, #2e1d28 100%);
  border: 1px solid rgba(193,154,131,.25);
}

.service-card--cta:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
}

.service-card__inner--cta {
  background: transparent;
  margin: 0;
  justify-content: center;
  text-align: center;
}

.service-card--cta:hover .service-card__inner { background: transparent; }

.service-card__title--cta {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--txt-primary);
  margin-bottom: var(--sp-2);
  line-height: 1.3;
}

.service-card__desc--cta {
  font-size: var(--fs-sm);
  color: var(--txt-secondary);
  margin-bottom: var(--sp-4);
}

/* ════════════════════════════════════════ OS SHOWCASE ═══ */
.os-showcase {
  padding: var(--sp-16) 0;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--clr-dominant-a) 0%, #1c1118 50%, var(--clr-dominant-a) 100%);
}

.os-showcase__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb--showcase-1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(70,43,61,.7) 0%, transparent 70%);
  bottom: -200px;
  left: -200px;
  animation: orbFloat1 20s ease-in-out infinite;
}

.orb--showcase-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(193,154,131,.2) 0%, transparent 70%);
  top: -100px;
  right: 10%;
  animation: orbFloat4 16s ease-in-out infinite;
}

.os-showcase__header {
  max-width: 640px;
  margin: 0 auto var(--sp-10);
  text-align: center;
}

.os-showcase__sub {
  font-size: var(--fs-base);
  color: var(--txt-secondary);
  line-height: 1.7;
  margin-top: var(--sp-3);
}

/* OS Window mockup */
.os-showcase__interface { position: relative; z-index: 1; }

.os-window {
  background: rgba(20,13,18,.9);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(193,154,131,.08), inset 0 1px 0 rgba(253,248,245,.05);
  max-width: 880px;
  margin: 0 auto;
}

.os-window__bar {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-2) var(--sp-3);
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--glass-border);
}

.os-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.os-dot--red    { background: #ff5f57; }
.os-dot--yellow { background: #febc2e; }
.os-dot--green  { background: #28c840; }

.os-window__title {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
  letter-spacing: 0.04em;
  margin: 0 auto;
}

.os-window__content { padding: var(--sp-3); }

.os-tabs {
  display: flex;
  gap: var(--sp-1);
  margin-bottom: var(--sp-3);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius-sm);
  padding: 4px;
  flex-wrap: wrap;
}

.os-tab {
  padding: 8px 18px;
  border-radius: calc(var(--radius-sm) - 2px);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--txt-muted);
  transition: background var(--t-std), color var(--t-std);
  min-height: 44px;
  min-width: 44px;
}

.os-tab:hover { color: var(--txt-secondary); }

.os-tab.active {
  background: var(--clr-accent-dim);
  color: var(--clr-accent);
}

.os-panels { min-height: 160px; }

.os-panel {
  display: none;
  animation: panelFade 250ms ease-out;
}

.os-panel.active { display: block; }

@keyframes panelFade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.os-panel__metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.os-metric {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
}

.os-metric__label {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}

.os-metric__val {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-2xl);
  font-weight: 600;
  color: var(--txt-primary);
  display: block;
  margin-bottom: var(--sp-2);
}

.os-metric__bar {
  height: 3px;
  background: rgba(255,255,255,.08);
  border-radius: 2px;
  overflow: hidden;
}

.os-metric__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), #e8c4a8);
  border-radius: 2px;
  transition: width 800ms ease-out;
}

.os-panel__insight {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(193,154,131,.08);
  border: 1px solid rgba(193,154,131,.2);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
}

.os-insight__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-accent);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}

.os-insight__text {
  font-size: var(--fs-sm);
  color: var(--txt-secondary);
}

/* ══════════════════════════════════════ CASE STUDIES ═══ */
.case-studies {
  padding: var(--sp-16) 0;
}

.case-studies .section-header {
  padding: 0 var(--container-pad);
}

.case-studies__scroll-wrapper {
  position: relative;
  margin-top: var(--sp-8);
}

.case-studies__track {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-3) var(--container-pad) var(--sp-6);
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--clr-accent-glow) transparent;
}

.case-studies__track::-webkit-scrollbar {
  height: 4px;
}

.case-studies__track::-webkit-scrollbar-track {
  background: transparent;
}

.case-studies__track::-webkit-scrollbar-thumb {
  background: var(--clr-accent-glow);
  border-radius: 2px;
}

/* Case card */
.case-card {
  flex: 0 0 min(420px, 85vw);
  scroll-snap-align: start;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--t-std), box-shadow var(--t-std), border-color var(--t-std);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(193,154,131,.3);
}

.case-card__img-wrap {
  overflow: hidden;
  height: 220px;
}

.case-card__img {
  width: 100%;
  height: 100%;
  transition: transform var(--t-std);
}

.case-card:hover .case-card__img { transform: scale(1.05); }

/* Unique gradient backgrounds per case study */
.case-card__img--meridian {
  background: linear-gradient(135deg, #1a1230 0%, #2d1b45 40%, #462b3d 70%, #c19a83 100%);
}
.case-card__img--nova {
  background: linear-gradient(135deg, #0d1f2d 0%, #1a3a4a 40%, #2a5563 70%, #c19a83 100%);
}
.case-card__img--axiom {
  background: linear-gradient(135deg, #0f1f18 0%, #1a3d2e 40%, #2d5c42 70%, #c19a83 100%);
}
.case-card__img--crux {
  background: linear-gradient(135deg, #1f1a0d 0%, #3d3010 40%, #5c4a1a 70%, #c19a83 100%);
}
.case-card__img--lumen {
  background: linear-gradient(135deg, #1a0d1f 0%, #2e1035 40%, #462b3d 70%, #e8c4a8 100%);
}

/* Add data visualization graphic to each card bg */
.case-card__img::after {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 70% 30%, rgba(253,248,245,.06) 0%, transparent 50%),
    linear-gradient(rgba(253,248,245,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(253,248,245,.03) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
}

.case-card__body {
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.case-card__tag {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
}

.case-card__title {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--txt-primary);
  line-height: 1.3;
}

.case-card__desc {
  font-size: var(--fs-sm);
  color: var(--txt-secondary);
  line-height: 1.7;
}

.case-card__metrics {
  display: flex;
  gap: var(--sp-4);
  padding-top: var(--sp-2);
  border-top: 1px solid var(--glass-border);
  margin-top: var(--sp-1);
}

.case-metric__num {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--txt-primary);
  display: block;
  line-height: 1;
}

.case-metric__label {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
  display: block;
  margin-top: 4px;
}

/* Controls */
.cs-controls {
  display: flex;
  gap: var(--sp-2);
  justify-content: flex-end;
  padding: 0 var(--container-pad);
  margin-top: var(--sp-3);
}

.cs-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid var(--glass-border);
  color: var(--txt-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--t-std), color var(--t-std), background var(--t-std);
}

.cs-btn:hover:not(:disabled) {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: var(--clr-accent-dim);
}

.cs-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ════════════════════════════════════════════ PROCESS ═══ */
.process {
  padding: var(--sp-16) 0;
  background: linear-gradient(180deg, var(--clr-dominant-a) 0%, #1c1118 50%, var(--clr-dominant-a) 100%);
}

.process__grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: process-counter;
  max-width: 800px;
  position: relative;
}

.process__grid::before {
  content: '';
  position: absolute;
  left: 36px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--clr-accent-glow), transparent);
}

.process-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--sp-4);
  padding: var(--sp-6) 0;
  position: relative;
}

.process-step:not(:last-child) {
  border-bottom: 1px solid var(--glass-border);
}

.process-step__num {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-accent);
  opacity: 0.5;
  line-height: 1;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent-glow);
  border-radius: 50%;
  flex-shrink: 0;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  transition: opacity var(--t-std), background var(--t-std);
  position: relative;
  z-index: 1;
}

.process-step.is-visible .process-step__num {
  opacity: 1;
  background: rgba(193,154,131,.25);
}

.process-step__title {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--txt-primary);
  margin-bottom: var(--sp-2);
  line-height: 1.3;
}

.process-step__desc {
  font-size: var(--fs-base);
  color: var(--txt-secondary);
  line-height: 1.75;
}

/* ════════════════════════════════════ TESTIMONIALS ═══ */
.testimonials {
  padding: var(--sp-16) 0;
}

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

.testimonials__track {
  display: flex;
  gap: var(--sp-4);
  transition: transform var(--t-std);
}

.testimonial-card {
  flex: 0 0 100%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-card__quote {
  font-family: 'Playfair Display', serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--clr-accent);
  opacity: 0.3;
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-6);
}

.testimonial-card__text {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-lg), 2vw, var(--fs-2xl));
  font-style: italic;
  line-height: 1.65;
  color: var(--txt-primary);
  margin-bottom: var(--sp-6);
  position: relative;
  z-index: 1;
}

.testimonial-card__footer {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-dominant-b), var(--clr-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--txt-primary);
  flex-shrink: 0;
}

.testimonial-card__name {
  font-weight: 600;
  font-style: normal;
  display: block;
  color: var(--txt-primary);
  font-size: var(--fs-base);
}

.testimonial-card__role {
  font-size: var(--fs-sm);
  color: var(--txt-muted);
}

.testimonials__dots {
  display: flex;
  justify-content: center;
  gap: var(--sp-1);
  margin-top: var(--sp-5);
}

.t-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--glass-border);
  transition: background var(--t-std), transform var(--t-std), width var(--t-std);
  min-width: 8px;
  min-height: 8px;
}

.t-dot:hover { background: var(--txt-muted); }

.t-dot.active {
  background: var(--clr-accent);
  width: 24px;
  border-radius: 4px;
}

/* ══════════════════════════════════════════ CONTACT ═══ */
.contact {
  padding: var(--sp-16) 0;
  position: relative;
  overflow: hidden;
  background: #150e13;
}

.contact__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb--contact-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(70,43,61,.8) 0%, transparent 65%);
  top: -150px;
  right: -100px;
  animation: orbFloat2 18s ease-in-out infinite;
}

.orb--contact-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(193,154,131,.15) 0%, transparent 65%);
  bottom: -100px;
  left: -50px;
  animation: orbFloat3 22s ease-in-out infinite;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--sp-12) var(--sp-10);
  align-items: start;
  position: relative;
  z-index: 1;
}

.contact__sub {
  font-size: var(--fs-base);
  color: var(--txt-secondary);
  line-height: 1.75;
  margin-top: var(--sp-4);
  max-width: 420px;
}

.contact__info {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
  flex-wrap: wrap;
}

.contact__link {
  color: var(--clr-accent);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: color var(--t-mid);
}

.contact__link:hover { color: #d4ae97; text-decoration: underline; }

.contact__sep {
  color: var(--txt-muted);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: var(--sp-6);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--txt-muted);
}

.form-input {
  background: rgba(255,255,255,.05);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: 'Outfit', sans-serif;
  font-size: var(--fs-base);
  color: var(--txt-primary);
  transition: border-color var(--t-std), background var(--t-std);
  min-height: 48px; /* tap target */
  width: 100%;
}

.form-input::placeholder { color: var(--txt-muted); }

.form-input:focus {
  outline: none;
  border-color: var(--clr-accent);
  background: rgba(193,154,131,.06);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-disclaimer {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
  text-align: center;
}

/* ════════════════════════════════════════════ FOOTER ═══ */
.footer {
  background: #0f0b0e;
  border-top: 1px solid var(--glass-border);
  padding: var(--sp-10) 0 var(--sp-6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-8);
  align-items: start;
}

.footer__logo {
  margin-bottom: var(--sp-3);
  font-size: var(--fs-xl);
}

.footer__tagline {
  font-size: var(--fs-sm);
  color: var(--txt-muted);
  line-height: 1.6;
  max-width: 260px;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.footer__nav-heading {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--txt-muted);
  margin-bottom: var(--sp-3);
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.footer__link {
  font-size: var(--fs-sm);
  color: var(--txt-secondary);
  transition: color var(--t-mid);
}

.footer__link:hover { color: var(--clr-accent); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.footer__copy {
  font-size: var(--fs-xs);
  color: var(--txt-muted);
}

.footer__legal {
  display: flex;
  gap: var(--sp-4);
}

/* ════════════════════════════════════ BACK TO TOP ═══ */
.back-to-top {
  position: fixed;
  bottom: var(--sp-5);
  right: var(--sp-5);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  color: var(--txt-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform var(--t-std), border-color var(--t-std), color var(--t-std);
  z-index: 90;
}

.back-to-top:hover {
  transform: translateY(-3px);
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ══════════════════════════════════════ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }
  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }
}

@media (max-width: 768px) {
  /* Nav: show burger, hide desktop links */
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }

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

  .os-panel__metric-row {
    grid-template-columns: 1fr;
    gap: var(--sp-2);
  }

  .os-tabs {
    overflow-x: auto;
    scrollbar-width: none;
  }
  .os-tabs::-webkit-scrollbar { display: none; }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }

  .footer__nav {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-4);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .testimonial-card { padding: var(--sp-6); }

  .contact-form { padding: var(--sp-4); }

  .process__grid::before { display: none; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { text-align: center; justify-content: center; }

  .about__stats {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }

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

  .contact__info { flex-direction: column; align-items: flex-start; }
  .contact__sep { display: none; }
}

/* ══════════════════════════════════ TILT (3D card) ═══ */
/* Applied by JS for GPU-only transforms */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

/* Blog */
.nav__link--active,
.nav__link[aria-current="page"] {
  color: var(--txt-primary);
}

.nav__link--active::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

.blog-page {
  background:
    radial-gradient(circle at 78% 12%, rgba(193,154,131,.12), transparent 30%),
    radial-gradient(circle at 12% 28%, rgba(70,43,61,.55), transparent 38%),
    var(--clr-dominant-a);
}

.blog-page main {
  display: block;
}

.blog-hero {
  position: relative;
  overflow: hidden;
  min-height: 78vh;
  display: flex;
  align-items: center;
  padding: calc(var(--sp-16) + var(--sp-3)) 0 var(--sp-10);
}

.blog-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: var(--sp-8);
  align-items: end;
  width: 100%;
}

.blog-hero__content {
  max-width: 820px;
}

.blog-hero__headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-4xl), 6vw, var(--fs-6xl));
  font-weight: 600;
  line-height: 1.04;
  color: var(--txt-primary);
}

.blog-hero__headline em {
  color: var(--clr-accent);
  font-style: italic;
}

.blog-hero__sub {
  max-width: 700px;
  margin-top: var(--sp-4);
  color: var(--txt-secondary);
  font-size: clamp(var(--fs-base), 1.5vw, var(--fs-xl));
}

.blog-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.blog-hero__panel {
  border: 1px solid var(--glass-border);
  background: rgba(253,248,245,.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-sm);
  padding: var(--sp-4);
  box-shadow: var(--shadow-md);
  max-width: 420px;
  justify-self: end;
}

.blog-hero__panel-label {
  color: var(--txt-muted);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.blog-topic-list {
  display: grid;
  gap: var(--sp-2);
}

.blog-topic-list li {
  color: var(--txt-secondary);
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--glass-border);
}

.blog-topic-list li:last-child {
  border-bottom: 0;
}

.blog-featured,
.blog-library,
.blog-seo-system {
  padding: var(--sp-10) 0;
}

.featured-post {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: var(--sp-8);
  padding: var(--sp-6);
  border: 1px solid rgba(193,154,131,.22);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(70,43,61,.68), rgba(26,26,26,.82));
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.featured-post__meta {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  color: var(--txt-muted);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.featured-post__content h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl));
  line-height: 1.12;
  margin-bottom: var(--sp-3);
}

.featured-post__content p {
  color: var(--txt-secondary);
  max-width: 760px;
}

.featured-post__link {
  display: inline-flex;
  margin-top: var(--sp-4);
  color: var(--clr-accent);
  font-weight: 700;
}

.blog-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
}

.blog-filter {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 8px 18px;
  color: var(--txt-secondary);
  font-size: var(--fs-sm);
  transition: border-color var(--t-mid), color var(--t-mid), background var(--t-mid);
}

.blog-filter:hover,
.blog-filter--active {
  border-color: var(--clr-accent);
  color: var(--txt-primary);
  background: rgba(193,154,131,.08);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
}

.blog-card {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  padding: var(--sp-4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(253,248,245,.045);
  transition: transform var(--t-std), border-color var(--t-std), background var(--t-std);
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(193,154,131,.42);
  background: rgba(253,248,245,.07);
}

.blog-card__eyebrow {
  color: var(--clr-accent);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.blog-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: var(--fs-2xl);
  line-height: 1.2;
  margin-bottom: var(--sp-3);
}

.blog-card p {
  color: var(--txt-secondary);
  font-size: var(--fs-sm);
}

.blog-card__meta {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-top: auto;
  padding-top: var(--sp-4);
  color: var(--txt-muted);
  font-size: var(--fs-xs);
}

.blog-card--cta {
  justify-content: space-between;
  background: rgba(193,154,131,.1);
  border-color: rgba(193,154,131,.32);
}

.blog-card--cta .btn {
  margin-top: var(--sp-4);
  justify-content: center;
}

.blog-seo-system {
  background: rgba(253,248,245,.035);
  border-top: 1px solid var(--glass-border);
}

.blog-seo-system__grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: var(--sp-8);
}

.blog-seo-system__copy {
  display: grid;
  gap: var(--sp-3);
  color: var(--txt-secondary);
  font-size: var(--fs-lg);
}

.article-hero {
  position: relative;
  overflow: hidden;
  padding: var(--sp-16) 0 var(--sp-8);
}

.article-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 980px;
}

.article-back {
  display: inline-flex;
  margin-bottom: var(--sp-5);
  color: var(--txt-muted);
  font-size: var(--fs-sm);
  font-weight: 700;
  transition: color var(--t-mid);
}

.article-back:hover {
  color: var(--clr-accent);
}

.article-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-4xl), 6vw, var(--fs-6xl));
  line-height: 1.04;
  font-weight: 600;
  color: var(--txt-primary);
}

.article-dek {
  margin-top: var(--sp-4);
  color: var(--txt-secondary);
  font-size: clamp(var(--fs-lg), 1.8vw, var(--fs-2xl));
  line-height: 1.55;
  max-width: 820px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  color: var(--txt-muted);
  font-size: var(--fs-sm);
}

.article-meta span:not(:last-child)::after {
  content: "/";
  margin-left: var(--sp-2);
  color: rgba(253,248,245,.24);
}

.article-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 780px);
  gap: var(--sp-8);
  align-items: start;
  padding-bottom: var(--sp-12);
}

.article-toc {
  position: sticky;
  top: 104px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(253,248,245,.045);
  padding: var(--sp-3);
}

.article-toc p {
  color: var(--txt-muted);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.article-toc a {
  display: block;
  padding: 10px 0;
  color: var(--txt-secondary);
  font-size: var(--fs-sm);
  border-top: 1px solid var(--glass-border);
  transition: color var(--t-mid);
}

.article-toc a:hover {
  color: var(--clr-accent);
}

.article-content {
  color: var(--txt-secondary);
  font-size: var(--fs-lg);
  line-height: 1.75;
}

.article-content p,
.article-content ul,
.article-content ol {
  margin-bottom: var(--sp-3);
}

.article-content h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(var(--fs-3xl), 3vw, var(--fs-4xl));
  line-height: 1.18;
  color: var(--txt-primary);
  margin: var(--sp-8) 0 var(--sp-3);
  scroll-margin-top: 96px;
}

.article-content h3 {
  color: var(--txt-primary);
  font-size: var(--fs-xl);
  line-height: 1.35;
  margin: var(--sp-5) 0 var(--sp-2);
}

.article-content ul,
.article-content ol {
  display: grid;
  gap: var(--sp-1);
  padding-left: 1.25rem;
}

.article-content li {
  padding-left: .25rem;
}

.article-content strong {
  color: var(--txt-primary);
}

.article-cta {
  margin: var(--sp-8) 0;
  padding: var(--sp-5);
  border: 1px solid rgba(193,154,131,.32);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(70,43,61,.52), rgba(193,154,131,.1));
}

.article-cta h2 {
  margin-top: 0;
}

.article-cta .btn {
  margin-top: var(--sp-2);
}

@media (max-width: 1024px) {
  .blog-hero__grid,
  .blog-seo-system__grid {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-toc {
    position: static;
  }
}

@media (max-width: 768px) {
  .blog-hero {
    min-height: auto;
    padding-top: var(--sp-12);
  }

  .featured-post {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
    padding: var(--sp-4);
  }

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

@media (max-width: 480px) {
  .blog-hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .blog-hero__actions .btn {
    justify-content: center;
  }

  .blog-card__meta {
    flex-direction: column;
  }
}