/* ============================================
   YDS - Your Design Services
   Production Stylesheet · Mobile First
   ============================================ */

/* ---------- CSS Custom Properties (Reference: Deep Black + Purple/Cyan) ---------- */
:root {
  /* Primary palette */
  --color-bg: #000000;
  --color-bg-elevated: #0a0a0a;
  --color-bg-card: #111111;
  --color-surface: #1a1a1a;
  --color-text: #f5f5f5;
  --color-text-muted: #a3a3a3;
  --color-border: #262626;
  /* Gradient accents (reference exact) */
  --color-purple: #A855F7;
  --color-cyan: #06B6D4;
  --color-accent: #06B6D4;
  --color-accent-hover: #22d3ee;
  --gradient-primary: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
  --gradient-text: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
  --color-success: #22c55e;
  --color-error: #ef4444;
  --glass-bg: rgba(0, 0, 0, 0.85);
  --glass-border: rgba(255, 255, 255, 0.06);

  /* Typography – Inter / Plus Jakarta Sans, 0.05em headings */
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --letter-spacing-heading: 0.05em;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-hero: clamp(2rem, 5vw, 3.5rem);
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Component density (reference card padding & radius) */
  --card-padding: 1.5rem;
  --card-radius: 12px;
  --section-glow: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(168, 85, 247, 0.12) 0%, transparent 50%);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --section-padding: clamp(3rem, 8vw, 6rem);

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.5rem;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --reveal-delay-step: 0.08s;
}

/* Gradient text utility (reference headline style) */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section atmospheric glow */
.section-glow {
  position: relative;
}
.section-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--section-glow);
  pointer-events: none;
  z-index: 0;
}
.section-glow > .container { position: relative; z-index: 1; }

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Hide bubble cursor on touch devices */
@media (hover: none) {
  .bubble-cursor { display: none !important; }
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---------- Bubble cursor ---------- */
.bubble-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  pointer-events: none;
  overflow: hidden;
}
.bubble-cursor .bubble {
  position: absolute;
  border-radius: 50%;
  background: rgba(88, 166, 255, 0.35);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

/* ---------- Sticky glassmorphism header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background: rgba(13, 17, 23, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-md);
}

.header__whatsapp {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(37, 211, 102, 0.15);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.4);
  border-radius: 8px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.header__whatsapp:hover {
  background: rgba(37, 211, 102, 0.25);
  color: #fff;
  border-color: #25d366;
}
.header__whatsapp img {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .header__whatsapp span { display: none; }
}

.nav {
  position: relative;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}
.nav__link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
  transition: color 0.25s ease;
}
.nav__link:hover,
.nav__link:focus,
.nav__link.active {
  color: var(--color-text);
}
.nav__link--cta.active { color: var(--color-accent); }
.nav__active-slide {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
  transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1), width 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
  pointer-events: none;
}
.nav__active-slide.hidden { opacity: 0; }
@media (max-width: 768px) {
  .nav__active-slide { display: none; }
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}
.logo:hover { opacity: 0.9; }
.logo__icon {
  width: 65%;
  height: auto;
  flex-shrink: 0;
  color: var(--color-cyan);
}
.logo__text {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25em;
  font-size: var(--font-size-base);
}
.logo__brand {
  font-size: var(--font-size-xl);
}
.logo__tagline {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-muted);
}
@media (max-width: 480px) {
  .logo__tagline { display: none; }
}

.nav__link--cta:hover {
  color: var(--color-accent-hover);
}

.header__cta { flex-shrink: 0; }
@media (max-width: 900px) {
  .header__whatsapp-label { display: none; }
}

/* Floating social bar */
.floating-socials {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-left: 1px solid var(--glass-border);
  border-radius: 12px 0 0 12px;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
}
.floating-socials__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.floating-socials__link img {
  width: 20px;
  height: 20px;
  display: block;
  filter: brightness(0) invert(0.85);
}
.floating-socials__link:hover {
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.3);
  transform: scale(1.05);
}
.floating-socials__link:hover img {
  filter: brightness(0) saturate(100%) invert(73%) sepia(52%) saturate(800%) hue-rotate(142deg);
}
@media (max-width: 768px) {
  .floating-socials {
    top: auto;
    bottom: var(--space-xl);
    left: 0;
    right: 0;
    transform: none;
    flex-direction: row;
    justify-content: center;
    border-left: none;
    border-top: 1px solid var(--glass-border);
    border-radius: 12px 12px 0 0;
  }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-sm);
}

.nav-toggle__bar {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ---------- Buttons: liquid fill + magnetic ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: 10px;
  overflow: hidden;
  transition: color 0.35s ease, border-color 0.35s ease, transform 0.25s ease;
  z-index: 1;
}

.btn--primary {
  background: var(--gradient-primary);
  color: #fff;
  border: none;
}
.btn--primary:hover { color: #fff; opacity: 0.95; }
.btn__arrow { margin-left: var(--space-xs); font-size: 0.9em; }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--secondary:hover { background: var(--color-bg-card); border-color: var(--color-text-muted); }

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-text-muted);
}
.btn--outline:hover { border-color: var(--color-text); color: var(--color-text); }

/* Liquid fill effect */
.btn--liquid::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}
.btn--liquid:hover::before,
.btn--primary:not(.btn--liquid):hover { background: var(--color-accent-hover); }
.btn--liquid:hover::before { transform: scaleX(1); transform-origin: left; }

.btn--full { width: 100%; }

/* Magnetic: slight movement applied via JS */
.btn--magnetic { will-change: transform; }

/* ---------- Hero with video background ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

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

.hero__video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.9) 100%);
  pointer-events: none;
}
.hero__stats {
  display: flex;
  gap: var(--space-2xl);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
}
.stat-inline { text-align: center; }
.stat-inline__num {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-inline__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-4xl);
}

.hero__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-heading);
  margin-bottom: var(--space-lg);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: var(--line-height-relaxed);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--transition-fast);
  z-index: 1;
}

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

.hero__scroll-icon {
  width: 24px;
  height: 24px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: scroll-bounce 2s ease-in-out infinite;
}

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

/* GSAP handles .gsap-reveal; initial state to avoid FOUC */
.gsap-reveal {
  opacity: 0;
  transform: translateY(28px);
}

/* ---------- STATS ---------- */
.stats {
  padding: var(--section-padding) 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  text-align: center;
}

.stat-card {
  padding: var(--space-xl);
  transition: transform 0.3s ease;
}
.stat-card:hover {
  transform: scale(1.02);
}

.stat-card__number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.stat-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.stat-card:hover .stat-card__number { opacity: 0.95; }

/* ---------- Section header (shared) ---------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-header__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section-header__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
  letter-spacing: var(--letter-spacing-heading);
}

.section-header__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ---------- EXPERTISE ---------- */
.expertise {
  padding: var(--section-padding) 0;
}

.expertise__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.expertise-card {
  padding: var(--card-padding);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.expertise-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
}
.expertise-card__icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}
.icon-neon {
  filter: brightness(0) saturate(100%) invert(73%) sepia(52%) saturate(800%) hue-rotate(142deg);
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.expertise-card:hover .expertise-card__icon img {
  transform: scale(1.08);
}
.expertise-card__icon img {
  transition: transform 0.35s ease;
}
.expertise-card__link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-cyan);
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}
.expertise-card__link:hover {
  color: var(--color-purple);
  transform: translateX(4px);
}

.expertise-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
}

.expertise-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ---------- ABOUT ---------- */
.about {
  padding: var(--section-padding) 0;
  background: var(--color-bg-elevated);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about__visual {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
}

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

.about__content .section-header__title {
  text-align: left;
}

.about__content .section-header__subtitle {
  text-align: left;
}

.about__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.about__features--grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
@media (max-width: 600px) {
  .about__features--grid { grid-template-columns: 1fr; }
}
.about__feature {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: var(--space-md);
  padding-left: var(--space-lg);
  border-left: 3px solid var(--color-cyan);
  line-height: var(--line-height-relaxed);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-sm);
  align-items: start;
}
.about__feature-icon {
  grid-row: 1 / 3;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__feature-icon img {
  width: 24px;
  height: 24px;
  filter: brightness(0) saturate(100%) invert(73%) sepia(52%) saturate(800%) hue-rotate(142deg);
}
.about__feature strong {
  color: var(--color-text);
}
.about__feature span { display: block; margin-top: 2px; }

/* ---------- WORK (Portfolio) ---------- */
.work {
  padding: var(--section-padding) 0;
}

.work__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-3xl);
}

.work__filter {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.work__filter:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.work__filter.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.work__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.work-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease, border-color 0.3s ease;
}

.work-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  border-color: rgba(88, 166, 255, 0.3);
}

.work-card.hidden {
  display: none;
}

.work-card__link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.work-card__link:hover { color: inherit; }

.work-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.work-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.work-card:hover .work-card__image img {
  transform: scale(1.05);
}

.work-card__content {
  padding: var(--space-lg);
}

.work-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-xs);
}

.work-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.work-card__tags {
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
}

/* ---------- CONTACT ---------- */
.contact {
  padding: var(--section-padding) 0;
  background: var(--color-bg-elevated);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.contact__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-purple);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.contact__info .section-header__title,
.contact__title {
  text-align: left;
}
.contact__intro {
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}
.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}
.contact__detail-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--card-radius);
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.2);
}
.contact__detail-icon img {
  width: 20px;
  height: 20px;
  filter: brightness(0) saturate(100%) invert(58%) sepia(90%) saturate(500%) hue-rotate(230deg);
}
.contact__detail h4 {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.contact__detail a,
.contact__detail p {
  font-size: var(--font-size-base);
  color: var(--color-text);
}

/* ---------- Contact form (dark theme, screenshot match) ---------- */
.contact-form {
  background: var(--color-bg-card);
  padding: var(--space-2xl);
  border-radius: var(--card-radius);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-lg);
}
.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--color-error);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Custom select with arrow (screenshot) */
.form-group--select {
  position: relative;
}
.form-select {
  appearance: none;
  padding-right: 2.5rem;
  cursor: pointer;
}
.form-select-arrow {
  position: absolute;
  right: var(--space-lg);
  top: 2.4rem;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--color-text-muted);
  pointer-events: none;
}
.form-select option {
  background: var(--color-bg-card);
  color: var(--color-text);
}
.form-select option:checked,
.form-select option:hover {
  background: #2563EB;
  color: #fff;
}

/* Gradient Send Message button */
.btn--gradient {
  background: var(--gradient-primary);
  color: #fff;
  border: none;
}
.btn--gradient:hover { opacity: 0.95; color: #fff; }

.form-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  min-height: 1.25em;
}

.form-note {
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  min-height: 1.25em;
}

.form-note.success {
  color: var(--color-success);
}

.form-note.error {
  color: var(--color-error);
}

/* ---------- Contact map ---------- */
.contact__map-wrap {
  margin-top: var(--space-4xl);
  width: 100%;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}
.contact__map-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
  text-align: center;
}
.contact__map-inner {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--color-border);
}
.contact__map-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Full footer (reference match) ---------- */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
}
@media (min-width: 992px) {
  .footer__top {
    grid-template-columns: 1.2fr 2fr;
    align-items: start;
  }
}

.footer__brand { max-width: 280px; }
.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  letter-spacing: var(--letter-spacing-heading);
  margin-bottom: var(--space-md);
}
.footer__logo:hover { color: var(--color-text); opacity: 0.9; }
.footer__logo img { width: 32px; height: 32px; flex-shrink: 0; }
.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.footer__socials {
  display: flex;
  gap: var(--space-md);
}
.footer__socials a {
  color: var(--color-text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer__socials a:hover { color: var(--color-cyan); transform: scale(1.1); }
.footer__socials img { width: 20px; height: 20px; display: block; }

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}
@media (min-width: 768px) {
  .footer__cols { grid-template-columns: repeat(4, 1fr); }
}
.footer__col h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-heading);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: var(--space-sm); }
.footer__col a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.footer__col a:hover { color: var(--color-cyan); }
.footer__contact p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}
.footer__contact a { color: var(--color-cyan); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}
.footer__copy {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.footer__legal {
  display: flex;
  gap: var(--space-xl);
}
.footer__legal a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.footer__legal a:hover { color: var(--color-text); }

/* ---------- Careers page ---------- */
.careers-page { padding-top: var(--header-height); }
.careers-hero {
  padding: var(--section-padding) 0;
  text-align: center;
}
.careers-hero__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
  margin-bottom: var(--space-md);
}
.careers-hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}
.careers-open { padding: var(--section-padding) 0; }
.careers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}
.careers-card {
  padding: var(--card-padding);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.careers-card:hover {
  border-color: rgba(168, 85, 247, 0.4);
  transform: translateY(-2px);
}
.careers-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.careers-card__icon img { width: 28px; height: 28px; }
.careers-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-xs);
  letter-spacing: var(--letter-spacing-heading);
}
.careers-card__meta {
  font-size: var(--font-size-xs);
  color: var(--color-cyan);
  margin-bottom: var(--space-sm);
}
.careers-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-relaxed);
}
.btn--small {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-xs);
}
.careers-apply { padding: var(--section-padding) 0; }
.careers-apply__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4xl);
  align-items: start;
}
@media (min-width: 768px) {
  .careers-apply__inner { grid-template-columns: 1fr 1.2fr; }
}
.careers-apply__text {
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin-top: var(--space-md);
}

/* ---------- Service detail page ---------- */
.service-detail-page { padding-top: var(--header-height); min-height: 100vh; }
.service-detail { padding: var(--section-padding) 0; }
.service-detail__back {
  display: inline-block;
  margin-bottom: var(--space-xl);
  color: var(--color-cyan);
  font-size: var(--font-size-sm);
  transition: color 0.2s ease, transform 0.2s ease;
}
.service-detail__back:hover { color: var(--color-purple); transform: translateX(-4px); }
.service-detail__header { margin-bottom: var(--space-2xl); }
.service-detail__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
  margin-bottom: var(--space-md);
}
.service-detail__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}
.service-detail__body {
  margin-bottom: var(--space-2xl);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ---------- Success toast ---------- */
.toast {
  position: fixed;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-success);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease, visibility 0.3s ease;
  z-index: 10000;
}
.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}
.toast__icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-success);
  color: #fff;
  border-radius: 50%;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}
.toast__message {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

/* ---------- Portfolio detail page ---------- */
.detail-page { padding-top: var(--header-height); min-height: 100vh; }
.detail { padding: var(--section-padding) 0; }
.detail__back {
  display: inline-block;
  margin-bottom: var(--space-xl);
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.detail__back:hover { color: var(--color-accent-hover); transform: translateX(-4px); }
.detail__header { margin-bottom: var(--space-2xl); }
.detail__title { font-size: var(--font-size-3xl); margin-bottom: var(--space-sm); }
.detail__meta { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.detail__hero {
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: var(--space-2xl);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
}
.detail__hero img { width: 100%; height: auto; object-fit: cover; display: block; }
.detail__content { max-width: 720px; }
.detail__desc { font-size: var(--font-size-lg); color: var(--color-text-muted); margin-bottom: var(--space-lg); line-height: var(--line-height-relaxed); }
.detail__body { margin-bottom: var(--space-2xl); line-height: var(--line-height-relaxed); }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .about__inner,
  .contact__inner {
    grid-template-columns: 1fr;
  }

  .about__visual {
    order: -1;
    max-height: 400px;
  }

  .about__content .section-header__title,
  .about__content .section-header__subtitle {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-xl);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .nav-toggle {
    display: flex;
  }

  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }

  .stats__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

  .work__filters {
    gap: var(--space-xs);
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .section-header__title {
    font-size: var(--font-size-2xl);
  }

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