/* ═══════════════════════════════════════════════════════════
   YKA TEKNİK — Premium Corporate Website
   Design Direction: Architectural Luxury / Editorial Dark
   ═══════════════════════════════════════════════════════════ */

/* ─── CSS VARIABLES ─────────────────────────────────────── */
:root {
  --bg:           #070709;
  --bg-2:         #0c0c0f;
  --bg-3:         #141418;
  --bg-4:         #1c1c22;
  --text:         #ede9e2;
  --text-mid:     #a8a29a;
  --text-muted:   #62605b;
  --accent:       #2952FF;
  --accent-2:     #5b7aff;
  --accent-gold:  #c4964a;
  --accent-gold-2:#e4b96a;
  --border:       rgba(237,233,226,0.07);
  --border-mid:   rgba(237,233,226,0.12);
  --border-light: rgba(237,233,226,0.18);
  --white:        #ffffff;

  --glow-accent:  rgba(41, 82, 255, 0.28);
  --glow-soft:    rgba(41, 82, 255, 0.12);
  --gradient-accent: linear-gradient(135deg, #1a3de0 0%, #5b7aff 100%);
  --gradient-gold:   linear-gradient(135deg, #c4964a 0%, #e4b96a 100%);
  --gradient-surface: linear-gradient(160deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0) 100%);

  --font-display: 'Cormorant Garamond', serif;
  --font-body:    'Barlow', sans-serif;
  --font-label:   'Barlow Condensed', sans-serif;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:   cubic-bezier(0.7, 0, 0.84, 0);
  --ease-circ: cubic-bezier(0.4, 0, 0.2, 1);

  --container: 1360px;
  --pad-x: clamp(1.5rem, 5vw, 5rem);

  --shadow-card:  0 1px 2px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.3);
  --shadow-glow:  0 0 60px var(--glow-soft), 0 8px 32px rgba(0,0,0,0.5);
  --shadow-hover: 0 8px 40px var(--glow-accent), 0 2px 8px rgba(0,0,0,0.4);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
select, input, textarea { font: inherit; }

/* ─── TYPOGRAPHY HELPERS ────────────────────────────────── */
.sec-eyebrow {
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sec-eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--gradient-accent);
  flex-shrink: 0;
}

.sec-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.5vw, 5.2rem);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
}

.sec-title em {
  font-style: italic;
  font-weight: 300;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-mid) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sec-title--sm { font-size: clamp(2rem, 3.8vw, 3.6rem); margin-bottom: 2rem; }

.sec-title--light { color: var(--white); }
.sec-title--light em {
  background: linear-gradient(135deg, #ffffff 0%, rgba(255,255,255,0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── BUTTONS ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.95rem 2.4rem;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-white {
  background: var(--white);
  color: var(--bg);
  box-shadow: 0 4px 20px rgba(255,255,255,0.1);
}

.btn-white::before { background: rgba(255,255,255,0.15); }
.btn-white:hover::before { opacity: 1; }
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255,255,255,0.15);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(8px);
}

.btn-ghost::before { background: rgba(255,255,255,0.06); }
.btn-ghost:hover::before { opacity: 1; }
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-mid);
}

.btn-outline-dark::before { background: rgba(255,255,255,0.04); }
.btn-outline-dark:hover::before { opacity: 1; }
.btn-outline-dark:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--white);
  border: none;
  box-shadow: 0 4px 20px var(--glow-soft);
}

.btn-accent::before {
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.12) 50%, transparent 100%);
  transform: translateX(-100%) skewX(-20deg);
  transition: transform 0.6s var(--ease-out), opacity 0s;
  opacity: 1;
}

.btn-accent:hover::before {
  transform: translateX(200%) skewX(-20deg);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

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


/* ─── SCROLL REVEAL ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.22s; }
.delay-3 { transition-delay: 0.34s; }
.delay-4 { transition-delay: 0.46s; }


/* ─── NAV RIGHT SIDE ─────────────────────────────────────── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--border-mid);
  padding: 0.38rem 0.8rem;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s;
  border-radius: 2px;
}

.lang-toggle:hover {
  border-color: var(--border-light);
  background: rgba(255,255,255,0.03);
}

.lang-opt {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.25s;
}

.lang-opt.active { color: var(--white); }

.lang-divider {
  font-size: 0.6rem;
  color: var(--border-mid);
  pointer-events: none;
}


/* ═══════════════════════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 var(--pad-x);
  height: 76px;
  transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(7, 7, 9, 0.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 var(--border), 0 8px 32px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-logo { margin-right: auto; }

.nav-logo img {
  height: 30px;
  width: auto;
  transition: opacity 0.3s, filter 0.3s;
}

.nav-logo:hover img { opacity: 0.85; filter: brightness(1.1); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-link {
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.62);
  padding: 0.5rem 0.9rem;
  transition: color 0.25s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0.9rem; right: 0.9rem;
  height: 1px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform 0.35s var(--ease-out);
  transform-origin: left;
}

.nav-link:hover { color: var(--white); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-cta {
  background: var(--gradient-accent);
  color: var(--white) !important;
  padding: 0.55rem 1.4rem;
  border-radius: 2px;
  box-shadow: 0 2px 12px var(--glow-soft);
  transition: box-shadow 0.3s, transform 0.3s;
}

.nav-cta::after { display: none; }
.nav-cta:hover {
  box-shadow: 0 4px 20px var(--glow-accent);
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.ham-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open .ham-line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open .ham-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open .ham-line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* ═══════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 640px;
  display: flex;
  align-items: flex-end;
  padding: 0 var(--pad-x) 8rem;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

/* Subtle vignette over canvas */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 25% 55%, rgba(41,82,255,0.07) 0%, transparent 55%),
              radial-gradient(ellipse at 80% 20%, rgba(196,150,74,0.04) 0%, transparent 50%),
              linear-gradient(to top, rgba(7,7,9,0.65) 0%, transparent 55%);
  z-index: 1;
  pointer-events: none;
}

.hero-body {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}

.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 9.5vw, 10rem);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 2.2rem;
  display: flex;
  flex-direction: column;
}

.hero-line { display: block; color: #ffffff; }

.hero-line--em {
  font-style: italic;
  background: linear-gradient(110deg, #ffffff 0%, #e4d5c0 60%, rgba(196,150,74,0.85) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(0.88rem, 1.35vw, 1.02rem);
  font-weight: 300;
  color: rgba(255,255,255,0.72);
  line-height: 1.85;
  margin-bottom: 3rem;
  max-width: 460px;
  letter-spacing: 0.01em;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  right: var(--pad-x);
  bottom: 3.5rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero-scroll span {
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.28);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.scroll-track {
  width: 1px;
  height: 56px;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}

.scroll-thumb {
  position: absolute;
  top: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2));
  animation: scrollThumb 2.4s var(--ease-out) infinite;
}

@keyframes scrollThumb {
  0%   { top: -40%; opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { top: 140%; opacity: 0; }
}

.hero-number {
  position: absolute;
  left: var(--pad-x);
  bottom: 3.5rem;
  z-index: 2;
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.25);
  text-transform: uppercase;
}


/* ═══════════════════════════════════════════════════════════
   STATS STRIP
   ═══════════════════════════════════════════════════════════ */
.stats-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.2rem var(--pad-x);
  position: relative;
  overflow: hidden;
}

.stats-strip::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 35%, var(--accent-2) 65%, transparent 100%);
  opacity: 0.5;
}

.stats-row {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.8rem 2rem;
}

.stat-val {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 5rem);
  font-weight: 300;
  background: linear-gradient(135deg, var(--white) 0%, var(--text-mid) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.025em;
}

.stat-val span {
  font-size: 0.6em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  vertical-align: super;
}

.stat-lbl {
  font-family: var(--font-label);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(168,162,154,0.7);
  margin-top: 0.7rem;
}

.stat-divider {
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, var(--border-mid), transparent);
  flex-shrink: 0;
}


/* ═══════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════ */
.about-sec {
  padding: clamp(4rem, 6vw, 7rem) var(--pad-x);
  background: var(--bg);
}

.about-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 7rem);
  align-items: center;
}

.about-img-frame {
  position: relative;
}

.about-img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,7,9,0.4) 0%, transparent 50%);
  pointer-events: none;
}

.about-img-frame img {
  width: 100%;
  height: clamp(420px, 55vw, 700px);
  object-fit: cover;
  display: block;
  transition: transform 0.8s var(--ease-out);
  filter: contrast(1.05) brightness(0.95);
}

.about-img-frame:hover img { transform: scale(1.02); }

.about-img-accent {
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100px;
  height: 100px;
  border-top: 1.5px solid var(--accent);
  border-left: 1.5px solid var(--accent);
  pointer-events: none;
  z-index: 2;
  opacity: 0.7;
}

.about-img-tag {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.2rem 1.6rem;
  background: rgba(7,7,9,0.82);
  backdrop-filter: blur(12px);
  font-family: var(--font-label);
  font-size: 0.63rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mid);
  z-index: 2;
  border-top: 1px solid var(--border);
  border-left: 2px solid var(--accent);
}

.about-text-col { padding: 2rem 0; }

.about-body p {
  font-size: 0.96rem;
  color: var(--text-mid);
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.about-pillars {
  margin: 2.5rem 0 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.about-pillars li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}

.about-pillars li:first-child { border-top: 1px solid var(--border); }

.pillar-dot {
  width: 4px;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--glow-accent);
}


/* ═══════════════════════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════════════════════ */
.services-sec {
  padding: clamp(4rem, 6vw, 7rem) var(--pad-x);
  background: var(--bg-2);
}

.services-header {
  max-width: var(--container);
  margin: 0 auto 3.5rem;
}

.services-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.svc-card {
  background: var(--bg-2);
  padding: 3.5rem 2.8rem 3rem;
  position: relative;
  overflow: hidden;
  transition: background 0.4s ease;
}

.svc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.55s var(--ease-out);
}

.svc-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-surface);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.svc-card:hover { background: var(--bg-3); box-shadow: inset 0 0 60px rgba(41,82,255,0.03); }
.svc-card:hover::before { transform: scaleX(1); }
.svc-card:hover::after { opacity: 1; }

.svc-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 2.2rem;
}

.svc-num {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 300;
  color: rgba(255,255,255,0.22);
  line-height: 1;
  letter-spacing: -0.02em;
  transition: color 0.4s;
}

.svc-card:hover .svc-num {
  background: linear-gradient(135deg, rgba(41,82,255,0.18) 0%, rgba(91,122,255,0.12) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.svc-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: rgba(41, 82, 255, 0.08);
  border: 1px solid rgba(41, 82, 255, 0.15);
  border-radius: 2px;
  transition: transform 0.4s var(--ease-out), background 0.4s, box-shadow 0.4s;
  flex-shrink: 0;
}

.svc-card:hover .svc-icon {
  background: rgba(41, 82, 255, 0.14);
  box-shadow: 0 0 24px rgba(41, 82, 255, 0.2);
  transform: scale(1.08) rotate(-4deg);
}

.svc-title {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2vw, 1.9rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 1.2rem;
  transition: color 0.35s;
}

.svc-card:hover .svc-title { color: var(--white); }

.svc-desc {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.svc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 2rem;
}

.svc-tags span {
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--border);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.svc-card:hover .svc-tags span {
  border-color: rgba(41,82,255,0.28);
  color: var(--accent-2);
  background: rgba(41,82,255,0.05);
}

.svc-line {
  height: 1px;
  background: var(--border);
  margin-top: auto;
}


/* ═══════════════════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════════════════ */
.projects-sec {
  padding: clamp(4rem, 6vw, 7rem) var(--pad-x);
  background: var(--bg);
}

.projects-head {
  max-width: var(--container);
  margin: 0 auto 2.5rem;
  display: flex;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
}

.filter-btns {
  display: flex;
  gap: 0.4rem;
}

.flt-btn {
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.55rem 1.2rem;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.flt-btn:hover { color: var(--text); border-color: var(--border-mid); }

.flt-btn.active {
  background: var(--gradient-accent);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px var(--glow-soft);
}

.projects-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.proj-card {
  background: var(--bg);
  overflow: hidden;
  cursor: pointer;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

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

.proj-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.proj-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out), filter 0.6s ease;
  filter: brightness(0.9) contrast(1.05);
}

.proj-img--placeholder {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.proj-brand-text {
  font-family: var(--font-label);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.08);
  text-transform: uppercase;
  transition: color 0.4s;
}

.proj-hover {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(4,4,8,0.75) 0%, rgba(17,39,172,0.82) 60%, rgba(41,82,255,0.78) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity 0.45s ease;
  backdrop-filter: blur(2px);
}

.proj-hover-label {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  transform: translateY(16px);
  transition: transform 0.4s var(--ease-out);
}

.proj-card:hover .proj-img img { transform: scale(1.08); filter: brightness(0.85) contrast(1.05); }
.proj-card:hover .proj-img .proj-brand-text { color: rgba(255,255,255,0.18); }
.proj-card:hover .proj-hover { opacity: 1; }
.proj-card:hover .proj-hover-label { transform: translateY(0); }

.proj-meta {
  padding: 1.8rem 2rem 2.2rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  transition: border-color 0.4s;
}

.proj-card:hover .proj-meta { border-top-color: rgba(41,82,255,0.25); }

.proj-cat {
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.proj-name {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.3rem;
  line-height: 1.2;
}

.proj-loc {
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}


/* ═══════════════════════════════════════════════════════════
   LIGHTBOX GALLERY
   ═══════════════════════════════════════════════════════════ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.lightbox.open {
  display: block;
  opacity: 1;
}

.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4,4,8,0.94);
  backdrop-filter: blur(16px) saturate(150%);
  cursor: pointer;
}

.lb-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: clamp(1rem, 3vw, 2.5rem);
  gap: 1.25rem;
}

.lb-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-mid);
  color: var(--text);
  transition: background 0.25s, border-color 0.25s, transform 0.35s var(--ease-out);
  z-index: 3;
}

.lb-close:hover {
  background: var(--gradient-accent);
  border-color: transparent;
  transform: rotate(90deg);
}

.lb-head {
  text-align: left;
  max-width: 900px;
  margin-top: 2rem;
}

.lb-cat {
  font-family: var(--font-label);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.lb-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 0.4rem;
}

.lb-loc {
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.lb-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  min-height: 0;
}

.lb-imgwrap {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lb-imgwrap img {
  max-width: 100%;
  max-height: 60vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border: 1px solid var(--border);
}

.lb-nav {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-mid);
  color: var(--text);
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.lb-nav:hover {
  background: var(--gradient-accent);
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 4px 20px var(--glow-accent);
}

.lb-nav:disabled { opacity: 0.3; cursor: not-allowed; }

.lb-foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.lb-counter {
  font-family: var(--font-label);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.lb-thumbs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 100%;
}

.lb-thumb {
  width: 72px;
  height: 54px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  opacity: 0.5;
  transition: opacity 0.25s, border-color 0.25s;
  background: var(--bg-3);
}

.lb-thumb img { width: 100%; height: 100%; object-fit: cover; }
.lb-thumb:hover { opacity: 0.8; }
.lb-thumb.active { opacity: 1; border-color: var(--accent); }

.lb-placeholder {
  width: 100%;
  max-width: 800px;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, #0d1117 0%, #161b22 60%, #1f2937 100%);
}

button.proj-card {
  font: inherit;
  color: inherit;
  text-align: left;
  padding: 0;
  cursor: pointer;
  width: 100%;
}

@media (max-width: 768px) {
  .lb-nav { width: 40px; height: 40px; }
  .lb-thumb { width: 56px; height: 42px; }
  .lb-imgwrap img { max-height: 50vh; }
}


/* ═══════════════════════════════════════════════════════════
   BRANDS MARQUEE
   ═══════════════════════════════════════════════════════════ */
.brands-sec {
  padding: clamp(4rem, 6vw, 7rem) var(--pad-x);
  background: var(--bg-2);
  overflow: hidden;
  position: relative;
}

.brands-sec::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-mid) 30%, var(--border-mid) 70%, transparent 100%);
}

.brands-head {
  max-width: var(--container);
  margin: 0 auto 3.5rem;
}

.marquee-wrap {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  width: max-content;
}

@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee-wrap:hover .marquee-track { animation-play-state: paused; }

.m-brand {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.28);
  padding: 0 2.5rem;
  transition: color 0.4s, text-shadow 0.4s;
  cursor: default;
}

.m-brand:hover {
  color: rgba(255,255,255,0.92);
  text-shadow: 0 0 60px rgba(255,255,255,0.1), 0 0 120px rgba(41,82,255,0.06);
}

.m-sep {
  font-size: 0.5em;
  color: var(--accent);
  opacity: 0.35;
  padding: 0 0.5rem;
  vertical-align: middle;
}


/* ═══════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════ */
.contact-sec {
  padding: clamp(4rem, 6vw, 7rem) var(--pad-x);
  background: var(--bg);
  position: relative;
}

.contact-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(3rem, 7vw, 8rem);
  align-items: start;
}

.contact-intro {
  font-size: 0.96rem;
  color: var(--text-mid);
  line-height: 1.9;
  margin: 1.8rem 0 2.5rem;
  max-width: 380px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 2.5rem;
  border: 1px solid var(--border);
}

.contact-details li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.contact-details li:last-child { border-bottom: none; }
.contact-details li {
  border-left: 2px solid transparent;
  transition: background 0.3s, border-left-color 0.3s;
}
.contact-details li:hover { background: var(--bg-2); border-left-color: var(--accent); }

.cd-label {
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
}

.cd-val {
  font-size: 0.95rem;
  color: var(--text);
}

.cd-link { transition: color 0.25s; }
.cd-link:hover { color: var(--accent-2); }

.contact-map-placeholder {
  border: 1px solid var(--border);
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-3);
  transition: border-color 0.3s, background 0.3s;
}

.contact-map-placeholder:hover {
  border-color: var(--border-mid);
  background: var(--bg-4);
}

.map-inner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Contact Form */
.cform {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.cf-group {
  position: relative;
}

.cf-group input,
.cf-group textarea,
.cf-group select {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.6rem 1.2rem 0.75rem;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 300;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  appearance: none;
  -webkit-appearance: none;
}

.cf-group textarea { resize: vertical; min-height: 130px; }

.cf-group input:focus,
.cf-group textarea:focus,
.cf-group select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-4);
  box-shadow: 0 0 0 3px var(--glow-soft), inset 0 0 0 1px transparent;
}

.cf-group label {
  position: absolute;
  top: 1.1rem;
  left: 1.2rem;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  pointer-events: none;
  transition: top 0.25s var(--ease-out), font-size 0.25s, color 0.25s;
}

.cf-group input:not(:placeholder-shown) ~ label,
.cf-group input:focus ~ label,
.cf-group textarea:not(:placeholder-shown) ~ label,
.cf-group textarea:focus ~ label,
.cf-group select:valid ~ label {
  top: 0.45rem;
  font-size: 0.56rem;
  color: var(--accent);
  letter-spacing: 0.2em;
}

.cf-select-wrap::after {
  content: '↓';
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  color: var(--text-muted);
  pointer-events: none;
}

.cf-group select option { background: var(--bg-3); }

.cf-err {
  display: block;
  font-family: var(--font-label);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: #e84048;
  margin-top: 0.4rem;
  padding-left: 0.2rem;
  min-height: 1em;
}

.cf-success {
  display: none;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-label);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #4ade80;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(74,222,128,0.2);
  background: rgba(74,222,128,0.05);
  margin-top: 0.5rem;
}

.cf-success.show { display: flex; }

.btn-txt { flex: 1; }
.btn-arrow { font-size: 1.1em; }


/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 3.5rem var(--pad-x) 2.5rem;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent-2) 60%, transparent 100%);
  opacity: 0.35;
}

.footer-inner { max-width: var(--container); margin: 0 auto; }

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo img {
  height: 26px;
  width: auto;
  opacity: 0.5;
  transition: opacity 0.3s, filter 0.3s;
}

.footer-logo:hover img { opacity: 0.85; filter: brightness(1.1); }

.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.25s;
  position: relative;
}

.footer-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.footer-nav a:hover { color: var(--text); }
.footer-nav a:hover::after { transform: scaleX(1); }

.footer-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 2rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy,
.footer-tagline {
  font-family: var(--font-label);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.footer-tagline {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.65;
}


/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .services-grid  { grid-template-columns: repeat(2, 1fr); }
  .projects-grid  { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .services-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .about-img-col { order: -1; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .projects-head {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: rgba(7,7,9,0.97);
    backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem var(--pad-x);
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s var(--ease-out), opacity 0.4s ease;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links li { width: 100%; }

  .nav-link {
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
    font-size: 0.8rem;
    color: var(--text);
  }

  .nav-link::after { display: none; }

  .nav-cta {
    margin-top: 1rem;
    display: inline-flex;
    width: auto;
  }

  .hamburger { display: flex; }
  .lang-toggle { font-size: 0.6rem; padding: 0.32rem 0.65rem; }

  .hero { padding-bottom: 6rem; }
  .hero-scroll, .hero-number { display: none; }

  .stats-row { flex-wrap: wrap; gap: 0; }
  .stat { min-width: 50%; }
  .stat-divider:nth-child(4) { display: none; }

  .projects-grid { grid-template-columns: 1fr; background: transparent; gap: 1px; }
  .services-grid { gap: 1px; }

  .footer-top { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stat { min-width: 100%; }
  .stat-divider { display: none; }
  .filter-btns { flex-wrap: wrap; }

  .sec-eyebrow::before { width: 18px; }
}