/* =============================================
   ARC Solutions & Software — Nexux Dark Theme
   ============================================= */

/* --- Local Fonts --- */
@font-face { font-family: 'Inter'; font-weight: 300; font-style: normal; font-display: swap; src: url('/fonts/inter-300.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/inter-400.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 500; font-style: normal; font-display: swap; src: url('/fonts/inter-500.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 600; font-style: normal; font-display: swap; src: url('/fonts/inter-600.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 700; font-style: normal; font-display: swap; src: url('/fonts/inter-700.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 800; font-style: normal; font-display: swap; src: url('/fonts/inter-800.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 900; font-style: normal; font-display: swap; src: url('/fonts/inter-900.woff2') format('woff2'); }

/* ===================== ROOT VARIABLES ===================== */
:root {
  --bg:       #060612;
  --bg2:      #0a0a1a;
  --bg3:      #0e0e24;
  --glass:    rgba(255,255,255,0.03);
  --glass-b:  rgba(255,255,255,0.06);
  --glass-hover: rgba(255,255,255,0.07);
  --border:   rgba(255,255,255,0.08);
  --border-b: rgba(255,255,255,0.12);
  --text:     #f0f0f5;
  --muted:    #8888aa;
  --accent:   #7c3aed;
  --accent2:  #06b6d4;
  --grad:     linear-gradient(135deg, #7c3aed, #06b6d4);
  --grad-rev: linear-gradient(135deg, #06b6d4, #7c3aed);
  --glow:     0 0 40px rgba(124,58,237,0.3);
  --glow2:    0 0 40px rgba(6,182,212,0.3);
  --radius:   16px;
  --radius-sm: 10px;
  --radius-pill: 100px;
  --transition: 0.3s ease;
  --transition-slow: 0.6s ease;
}

/* ===================== RESET ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===================== CONTAINER ===================== */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===================== SECTION HEADER ===================== */
.section-header {
  text-align: center;
  margin-bottom: 72px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--text);
  position: relative;
  display: inline-block;
  padding-bottom: 20px;
  text-transform: uppercase;
}
.section-header h2::before {
  content: attr(data-label);
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--grad);
  border-radius: 2px;
}
.section-header p {
  margin-top: 20px;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

/* ===================== NAVBAR ===================== */
#navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  padding: 24px 0;
  transition: all var(--transition);
}
#navbar.scrolled {
  background: rgba(6,6,18,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 160px;
  height: 40px;
}
.nav-logo img {
  height: 40px;
  width: auto;
  transition: opacity var(--transition);
  position: absolute;
}
.nav-logo .logo-white { opacity: 1; }
.nav-logo .logo-color { opacity: 0; }
#navbar.scrolled .nav-logo .logo-white { opacity: 1; }
#navbar.scrolled .nav-logo .logo-color { opacity: 0; }

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-links a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--grad);
  border-radius: 1px;
  transition: width var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: rgba(255,255,255,0.8);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== HERO ===================== */
#hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 40px;
  background:
    linear-gradient(135deg, rgba(6,6,18,0.94) 0%, rgba(6,6,18,0.85) 40%, rgba(6,6,18,0.78) 100%),
    url('/img/hero-ai-bg.webp') center center / cover no-repeat;
  background-color: var(--bg);
}

/* Animated gradient mesh */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 70% at 5% 15%, rgba(124,58,237,0.20) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 90% 80%, rgba(6,182,212,0.16) 0%, transparent 50%);
  animation: mesh-drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes mesh-drift {
  0%   { opacity: 0.6; transform: scale(1) translate(0, 0); }
  50%  { opacity: 1;   transform: scale(1.08) translate(-3%, 3%); }
  100% { opacity: 0.7; transform: scale(1) translate(3%, -3%); }
}

/* Subtle glow orbs */
.hero-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(160px);
  pointer-events: none;
  z-index: 0;
}
.hero-glow--left {
  top: -20%;
  left: -12%;
  background: rgba(124,58,237,0.08);
  animation: orb-left 16s ease-in-out infinite alternate;
}
.hero-glow--right {
  bottom: -25%;
  right: -10%;
  background: rgba(6,182,212,0.06);
  animation: orb-right 18s ease-in-out infinite alternate;
}
@keyframes orb-left {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5%, 8%) scale(1.1); }
}
@keyframes orb-right {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-4%, -6%) scale(1.05); }
}

/* Hero split layout */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

/* Grid overlay removed */

/* Subtle floating particles (stake-style) */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-dot var(--dur, 8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes float-dot {
  0%, 100% { transform: translateY(0) translateX(0); opacity: .15; }
  33% { transform: translateY(-30px) translateX(20px); opacity: .45; }
  66% { transform: translateY(-60px) translateX(-10px); opacity: .2; }
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(124,58,237,0.10);
  border: 1px solid rgba(124,58,237,0.30);
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent2);
  text-transform: uppercase;
  margin-bottom: 36px;
  backdrop-filter: blur(8px);
}
.hero-badge i {
  color: var(--accent);
  font-size: 0.7rem;
}

.hero-title {
  font-size: clamp(3rem, 6.5vw, 5.8rem);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.045em;
  color: #fff;
  margin-bottom: 28px;
}
.hero-title span {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: clamp(0.95rem, 1.4vw, 1.12rem);
  font-weight: 400;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.85;
  margin-bottom: 36px;
}

/* Social proof strip */
.hero-proof {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}
.hero-proof-item { text-align: center; }
.hero-proof-item strong {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.hero-proof-item span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-proof-sep {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Hero floating agent cards */
.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 20px 0;
}
.hero-agent-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 20px 24px;
  transition: all 0.4s ease;
  animation: card-float 6s ease-in-out infinite;
}
.hero-agent-card--1 { animation-delay: 0s; }
.hero-agent-card--2 { animation-delay: 2s; transform: translateX(32px); }
.hero-agent-card--3 { animation-delay: 4s; transform: translateX(12px); }
@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-agent-card:hover {
  border-color: rgba(124,58,237,0.4);
  background: rgba(124,58,237,0.08);
  box-shadow: 0 12px 40px rgba(124,58,237,0.2);
}
.agent-card-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: rgba(124,58,237,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
}
.agent-card-text {
  flex: 1;
}
.agent-card-text strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.agent-card-text span {
  font-size: 0.78rem;
  color: var(--muted);
}
.agent-card-status {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px rgba(16,185,129,0.6);
  animation: pulse-status 2s ease-in-out infinite;
}
@keyframes pulse-status {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Marquee */
.hero-marquee {
  position: relative;
  z-index: 2;
  margin-top: 48px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.value-track {
  display: flex;
  gap: 20px;
  animation: marquee 20s linear infinite;
  width: max-content;
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.value-chip {
  flex-shrink: 0;
  padding: 10px 32px;
  border: 1px solid var(--border-b);
  border-radius: var(--radius-pill);
  background: var(--glass);
  backdrop-filter: blur(6px);
}
.value-chip span {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* CTA buttons */
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(124,58,237,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.55);
  filter: brightness(1.1);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.85);
}
.btn-outline:hover {
  border-color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.07);
  transform: translateY(-3px);
  color: #fff;
}

/* ===================== SERVICES ===================== */
#services {
  padding: 110px 0;
  background: var(--bg2);
  position: relative;
}
#services::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.05), rgba(6,182,212,0.03));
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 0;
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(124,58,237,0.4);
  box-shadow: 0 16px 48px rgba(124,58,237,0.2), 0 0 0 1px rgba(124,58,237,0.15);
}
.service-card:hover::before { opacity: 1; }

.service-img {
  height: 190px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(124,58,237,0.15), rgba(6,182,212,0.10));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  opacity: 0.85;
}
.service-card:hover .service-img img { transform: scale(1.06); opacity: 1; }

.service-body {
  padding: 28px 32px 32px;
  position: relative;
  z-index: 1;
}
.service-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.service-body p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.75;
}

/* Service category badge */
.svc-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.22);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 12px;
}
.svc-badge i { font-size: 0.65rem; }

/* AI service cards */
.service-card--ai { border-color: rgba(124,58,237,0.25); }
.service-card--ai::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  border-radius: 16px 16px 0 0;
  z-index: 2;
}
.service-card--ai:hover {
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 16px 48px rgba(124,58,237,0.25), 0 0 0 1px rgba(124,58,237,0.2);
}
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 12px;
}
.ai-badge i { font-size: 0.65rem; }

.svc-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent2);
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.svc-link:hover { color: #fff; gap: 8px; }

/* ===================== TECHNOLOGIES ===================== */
#technologies {
  padding: 110px 0;
  background: var(--bg);
  position: relative;
}
#technologies::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}

/* Tech grid v2 — featured layout */
.tech-grid-v2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tech-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.tech-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  opacity: 0.5;
}
.tech-card:hover {
  border-color: rgba(124,58,237,0.3);
  box-shadow: 0 12px 40px rgba(124,58,237,0.15);
  transform: translateY(-4px);
  background: var(--glass-hover);
}

/* Featured cards (AI + Cloud) — full width */
.tech-card--featured {
  background: var(--glass-b);
  border-color: rgba(124,58,237,0.2);
}
.tech-card--featured::before { opacity: 0.8; height: 3px; }
.tech-card--featured:hover {
  box-shadow: 0 16px 48px rgba(124,58,237,0.2), 0 0 0 1px rgba(124,58,237,0.15);
}

/* Bottom row: 3 cols */
.tech-card:nth-child(n+3) { /* 3rd, 4th, 5th */ }

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}
.tech-card-icon {
  width: 72px; height: 72px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}
.tech-card-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 18px;
  opacity: 0.12;
  background: inherit;
  filter: blur(0);
}
.tech-card-icon svg {
  width: 36px;
  height: 36px;
  stroke-width: 1.5;
  position: relative;
  z-index: 1;
}
.tech-card:hover .tech-card-icon {
  transform: scale(1.08);
  transition: transform var(--transition);
}
.tech-card-header h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
}
.tech-card-count {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

/* Last 3 cards span full width as 3-col row */
@media (min-width: 769px) {
  .tech-grid-v2 {
    grid-template-columns: repeat(6, 1fr);
  }
  .tech-card--featured { grid-column: span 3; }
  .tech-card:not(.tech-card--featured) { grid-column: span 2; }
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tech-tag {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-b);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  transition: all var(--transition);
  cursor: default;
}
.tech-tag:hover {
  border-color: rgba(124,58,237,0.5);
  color: var(--text);
  background: rgba(124,58,237,0.08);
}

/* ===================== ABOUT ===================== */
#about {
  padding: 110px 0;
  background: var(--bg2);
  position: relative;
}
#about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}
#about .section-header h2 { color: var(--text); }
#about .section-header p { color: var(--muted); }

.about-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 52px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 10px 28px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid var(--border-b);
  background: var(--glass);
  color: var(--muted);
  transition: all var(--transition);
}
.tab-btn:hover {
  border-color: rgba(124,58,237,0.4);
  color: var(--text);
  background: rgba(124,58,237,0.08);
}
.tab-btn.active {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 20px rgba(124,58,237,0.3);
}

.about-panels { position: relative; }
.about-panel {
  display: none;
  animation: fadeIn 0.45s ease;
}
.about-panel.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-img {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}
.about-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.15), transparent 60%);
  border-radius: var(--radius);
  pointer-events: none;
}
.about-img img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.about-img:hover img { transform: scale(1.03); }

.about-text h3 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 20px;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}
.about-text p {
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 18px;
  font-size: 0.95rem;
}
.about-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(240,240,245,0.8);
  font-size: 0.93rem;
  line-height: 1.6;
}
.about-list li::before {
  content: '▸';
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  margin-top: 1px;
  font-size: 0.85rem;
}
.about-list li strong {
  color: var(--text);
}

/* ===================== PORTFOLIO ===================== */
#portfolio {
  padding: 110px 0;
  background: var(--bg);
  position: relative;
}
#portfolio::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}

.portfolio-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0;
  max-width: 1000px;
  margin: 0 auto;
}
.portfolio-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 32px;
  transition: all 0.4s ease;
  cursor: default;
  position: relative;
}
.portfolio-item img {
  height: 40px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  filter: grayscale(100%) brightness(0.5) invert(1);
  opacity: 0.35;
  transition: all 0.4s ease;
}
.portfolio-item:hover img {
  filter: grayscale(0%) brightness(1) invert(0);
  opacity: 1;
  transform: scale(1.12);
}

/* Stagger sizes for cloud feel */
.portfolio-item:nth-child(4n+1) img { height: 48px; }
.portfolio-item:nth-child(4n+2) img { height: 36px; }
.portfolio-item:nth-child(4n+3) img { height: 44px; }
.portfolio-item:nth-child(4n)   img { height: 38px; }

/* Featured / bigger clients */
.portfolio-item--lg img { height: 56px !important; max-width: 180px; opacity: 0.45; }

/* ===================== CONTACT ===================== */
#contact {
  padding: 110px 0;
  background: var(--bg2);
  position: relative;
}
#contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 56px;
  align-items: start;
}

.contact-form {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
}
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 18px;
  border: 1px solid var(--border-b);
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.93rem;
  color: var(--text);
  background: rgba(255,255,255,0.03);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(136,136,170,0.6);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(124,58,237,0.6);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
  background: rgba(124,58,237,0.04);
}
.form-group textarea {
  min-height: 140px;
  resize: vertical;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.btn-submit {
  background: var(--grad);
  color: #fff;
  border: none;
  width: 100%;
  padding: 15px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(124,58,237,0.3);
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.5);
  filter: brightness(1.1);
}
.form-success {
  display: none;
  padding: 16px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.3);
  border-radius: var(--radius-sm);
  color: var(--accent2);
  font-weight: 600;
  text-align: center;
  margin-top: 16px;
  font-size: 0.92rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
}
.contact-info .tagline {
  color: var(--muted);
  margin-bottom: 36px;
  font-size: 0.93rem;
}

.info-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}
.info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: all var(--transition);
}
.info-card:hover {
  border-color: rgba(124,58,237,0.3);
  background: var(--glass-hover);
}
.info-card-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
}
.info-card-text strong {
  display: block;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
  font-size: 0.85rem;
}
.info-card-text span {
  font-size: 0.85rem;
  color: var(--muted);
}

.social-links {
  display: flex;
  gap: 10px;
}
.social-link {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: var(--glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
  color: var(--muted);
}
.social-link:hover {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.35);
}

/* ===================== FOOTER ===================== */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
}
.footer-brand img {
  height: 38px;
  margin-bottom: 18px;
}
.footer-brand p {
  font-size: 0.87rem;
  line-height: 1.85;
  max-width: 280px;
  color: var(--muted);
}
.footer-brand .social-links { margin-top: 22px; }
.footer-brand .social-link {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--muted);
}
.footer-brand .social-link:hover {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
}
.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 22px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li a {
  font-size: 0.87rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent2);
}
.footer-bottom {
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(136,136,170,0.6);
}
.footer-bottom a:hover { color: var(--accent2); }

/* ===================== SCROLL ANIMATIONS ===================== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up:nth-child(1)  { transition-delay: 0.05s; }
.fade-up:nth-child(2)  { transition-delay: 0.10s; }
.fade-up:nth-child(3)  { transition-delay: 0.15s; }
.fade-up:nth-child(4)  { transition-delay: 0.20s; }
.fade-up:nth-child(5)  { transition-delay: 0.25s; }
.fade-up:nth-child(6)  { transition-delay: 0.30s; }
.fade-up:nth-child(7)  { transition-delay: 0.35s; }
.fade-up:nth-child(8)  { transition-delay: 0.40s; }
.fade-up:nth-child(9)  { transition-delay: 0.45s; }
.fade-up:nth-child(10) { transition-delay: 0.50s; }

/* ===================== SERVICE PAGES ===================== */
.svc-hero {
  min-height: 50vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 160px 0 80px;
  background: var(--bg);
}
.svc-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 70% at 10% 30%, rgba(124,58,237,0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 80% 70%, rgba(6,182,212,0.14) 0%, transparent 50%);
  pointer-events: none;
}
.svc-hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.svc-hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 20px;
}
.svc-hero-lead {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.85;
  max-width: 560px;
}

/* Service content sections */
.svc-section {
  padding: 88px 0;
  position: relative;
}
.svc-section:nth-child(even) { background: var(--bg2); }
.svc-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-b), transparent);
}

.svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.svc-grid--reverse { direction: rtl; }
.svc-grid--reverse > * { direction: ltr; }

.svc-text h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 20px;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}
.svc-text p {
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.svc-text ul {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.svc-text ul li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(240,240,245,0.8);
  font-size: 0.93rem;
  line-height: 1.6;
}
.svc-text ul li::before {
  content: '\25B8';
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.svc-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.svc-visual img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}
.svc-visual:hover img { transform: scale(1.03); }

/* Feature cards grid */
.svc-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.svc-feature {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}
.svc-feature:hover {
  border-color: rgba(124,58,237,0.3);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.12);
}
.svc-feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(124,58,237,0.10);
  border: 1.5px solid rgba(124,58,237,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.svc-feature h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.svc-feature p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
}

.svc-cta {
  padding: 88px 0;
  background: var(--bg);
  position: relative;
}
.svc-cta h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
}

@media (max-width: 768px) {
  .svc-hero { padding: 120px 0 60px; min-height: auto; }
  .svc-grid { grid-template-columns: 1fr; gap: 32px; }
  .svc-grid--reverse { direction: ltr; }
  .svc-features { grid-template-columns: 1fr; }
  .svc-section { padding: 64px 0; }
}

/* ===================== SCROLL TO TOP ===================== */
.scroll-top,
#scrollTop {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 9999;
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}
.scroll-top.visible,
#scrollTop.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover,
#scrollTop:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.6);
}

/* ===================== RESPONSIVE — TABLET (≤1100px) ===================== */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid-v2 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .portfolio-cloud { gap: 0; }
  .portfolio-item { padding: 18px 24px; }
}

/* ===================== RESPONSIVE — TABLET (≤900px) ===================== */
@media (max-width: 900px) {
  .about-content { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { margin-top: 0; }
}

/* ===================== RESPONSIVE — MOBILE (≤768px) ===================== */
@media (max-width: 768px) {
  /* Navbar mobile */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(6,6,18,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    color: var(--muted) !important;
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
    width: 100%;
    font-size: 0.82rem;
  }
  .nav-links a:hover { color: var(--text) !important; }
  .nav-links a::after { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  #hero { padding: 100px 0 40px; }
  .hero-title { font-size: clamp(3rem, 10vw, 5rem); }
  .hero-proof { gap: 20px; flex-wrap: wrap; }
  .hero-value-rotator { margin-top: 48px; }

  /* Grids */
  .services-grid { grid-template-columns: 1fr; }
  .tech-grid-v2 { grid-template-columns: 1fr; }
  .portfolio-item { padding: 16px 20px; }
  .portfolio-item img { height: 32px !important; }
  .portfolio-item--lg img { height: 42px !important; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  /* Contact form */
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 22px; }
  .contact-grid { gap: 36px; }

  /* Sections spacing */
  #services, #technologies, #about, #portfolio, #contact { padding: 80px 0; }
  .section-header { margin-bottom: 52px; }
}

/* ===================== MOBILE UX HARDENING ===================== */
html { -webkit-text-size-adjust: 100%; }
img { height: auto; }
a, button, input, select, textarea { touch-action: manipulation; }

/* Touch targets ≥ 44×44px */
.hamburger {
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  border-radius: 8px;
}

.nav-links a { min-height: 44px; }
.btn { min-height: 44px; }
.btn-submit { min-height: 48px; }
.social-link { min-width: 44px; min-height: 44px; }

/* iOS zoom fix on inputs */
.form-group input,
.form-group textarea,
.form-group select { font-size: max(16px, 0.93rem); }

/* Focus ring for keyboard nav */
.hamburger:focus-visible,
.btn:focus-visible,
.btn-submit:focus-visible,
.tab-btn:focus-visible,
.form-group input:focus-visible,
.form-group textarea:focus-visible {
  outline: 3px solid rgba(124,58,237,0.55);
  outline-offset: 2px;
}

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

/* hero-split → 1 column on mobile */
@media (max-width: 768px) {
  .hero-split {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  body.nav-open { overflow: hidden; }

  #hero { padding: 90px 0 40px; }

  .container { padding-left: 18px; padding-right: 18px; }

  .hero-badge { font-size: 0.68rem; padding: 7px 14px; }

  .hero-lead { max-width: 100%; }

  .hero-proof { gap: 14px 20px; flex-wrap: wrap; }

  .hero-marquee { margin-top: 32px; }

  .section-header { margin-bottom: 40px; }
}

@media (max-width: 600px) {
  .hero-visual { display: none; }
}

/* ===================== RESPONSIVE — SMALL MOBILE (≤480px) ===================== */
@media (max-width: 480px) {
  .portfolio-item { padding: 14px 16px; }
  .portfolio-item img { height: 28px !important; }
  .portfolio-item--lg img { height: 36px !important; }
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .hero-title { font-size: clamp(2.6rem, 11vw, 4rem); }
  .hero-proof { gap: 16px; }
  .hero-proof-item strong { font-size: 1.4rem; }
  .hero-visual { flex-direction: column; }
  .hero-agent-card { min-width: auto; }
  .hero-agent-card--2, .hero-agent-card--3 { transform: none; }
  .hero-marquee { margin-top: 28px; }
  .about-tabs { gap: 8px; }
  .tab-btn { padding: 8px 18px; font-size: 0.72rem; }
  #services, #technologies, #about, #portfolio, #contact { padding: 64px 0; }
  .contact-form { padding: 22px 18px; }
  .scroll-top, #scrollTop { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}