/* ═══════════════════════════════════════════════════════════════════════════
   Abrileri IT Consulting — Stylesheet
   Theme: Dark (black / purple / blue)
═══════════════════════════════════════════════════════════════════════════ */

/* ─── DESIGN TOKENS ───────────────────────────────────────────────────────── */
:root {
  /* palette */
  --clr-bg:        #0a0a0f;
  --clr-surface:   #111118;
  --clr-surface2:  #16161f;
  --clr-border:    rgba(255,255,255,.07);
  --clr-border-hi: rgba(139,92,246,.35);

  --clr-purple:    #8b5cf6;
  --clr-purple-dk: #6d28d9;
  --clr-purple-lt: #a78bfa;
  --clr-blue:      #3b82f6;
  --clr-blue-dk:   #1d4ed8;
  --clr-blue-lt:   #60a5fa;
  --clr-accent:    #06b6d4; /* cyan highlight */

  --gradient-text: linear-gradient(135deg, var(--clr-purple-lt) 0%, var(--clr-blue-lt) 50%, var(--clr-accent) 100%);
  --gradient-bg:   linear-gradient(135deg, var(--clr-purple-dk) 0%, var(--clr-blue-dk) 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(139,92,246,.25) 0%, transparent 70%);

  /* typography */
  --ff-sans: 'Inter', system-ui, sans-serif;
  --ff-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* spacing */
  --nav-h:  72px;
  --section-py: clamp(5rem, 10vw, 8rem);
  --container: 1200px;
  --gap: clamp(1.5rem, 3vw, 2.5rem);

  /* radius */
  --r-sm: .5rem;
  --r-md: 1rem;
  --r-lg: 1.5rem;

  /* transitions */
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-bounce: cubic-bezier(.34,1.56,.64,1);
}

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

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

body {
  font-family: var(--ff-sans);
  background-color: var(--clr-bg);
  color: #e2e8f0;
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100dvh;
}

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

/* ─── UTILITY ─────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding-block: var(--section-py);
}

/* ─── SCROLLBAR ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-purple-dk); border-radius: 99px; }

/* ─── SELECTION ───────────────────────────────────────────────────────────── */
::selection { background: rgba(139,92,246,.35); color: #fff; }

/* ═══════════════════════════════════════════════════════════════════════════
   NAV
═══════════════════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(10,10,15,.6);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--clr-border);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

#navbar.scrolled {
  background: rgba(10,10,15,.9);
  box-shadow: 0 0 40px rgba(139,92,246,.12);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
  gap: 1rem;
}

/* Logo */
.logo {
  font-family: var(--ff-mono);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: #fff;
  transition: opacity .2s;
}
.logo:hover { opacity: .8; }
.logo-bracket { color: var(--clr-purple-lt); }
.logo-accent   { color: var(--clr-blue-lt); }

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.nav-link {
  position: relative;
  padding: .45rem .85rem;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(226,232,240,.7);
  border-radius: var(--r-sm);
  transition: color .2s, background .2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  width: 0; height: 2px;
  background: var(--gradient-text);
  border-radius: 99px;
  transform: translateX(-50%);
  transition: width .25s var(--ease);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.05); }
.nav-link:hover::after,
.nav-link.active::after { width: 70%; }
.nav-link.active { color: #fff; }

.nav-cta {
  background: var(--gradient-bg);
  color: #fff !important;
  padding: .45rem 1.1rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  transition: opacity .2s, transform .2s;
}
.nav-cta:hover { opacity: .9; transform: translateY(-1px); }
.nav-cta::after { display: none; }

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: 2px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 2px;
}

.lang-btn {
  font-family: var(--ff-mono);
  font-size: .7rem;
  font-weight: 600;
  color: rgba(226,232,240,.5);
  padding: .25rem .5rem;
  border-radius: calc(var(--r-sm) - 2px);
  transition: all .2s var(--ease);
  letter-spacing: .05em;
}
.lang-btn:hover { color: #fff; }
.lang-btn.active {
  background: var(--gradient-bg);
  color: #fff;
}

.lang-switcher-mobile {
  margin-top: 1rem;
  justify-content: center;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
}
.burger span {
  display: block;
  width: 22px; height: 2px;
  background: #fff;
  border-radius: 99px;
  transition: transform .3s var(--ease), opacity .3s;
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--clr-surface2);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--clr-border-hi);
  border-bottom: 1px solid var(--clr-border);
  padding: 1.5rem;
  transform: translateY(-110%);
  transition: transform .35s var(--ease);
  z-index: 99;
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { display: flex; flex-direction: column; gap: .5rem; }
.mobile-menu .nav-link {
  display: block;
  padding: .8rem 1rem;
  font-size: 1.05rem;
  color: rgba(226,232,240,.8);
}

/* ═══════════════════════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Ambient background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .45;
  animation: float 8s ease-in-out infinite;
}
.orb-1 {
  width: clamp(300px, 50vw, 700px);
  height: clamp(300px, 50vw, 700px);
  background: radial-gradient(circle, #6d28d9 0%, transparent 70%);
  top: -10%; left: -10%;
  animation-delay: 0s;
}
.orb-2 {
  width: clamp(200px, 35vw, 500px);
  height: clamp(200px, 35vw, 500px);
  background: radial-gradient(circle, #1d4ed8 0%, transparent 70%);
  bottom: -5%; right: -5%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.03); }
  66%       { transform: translate(-15px, 20px) scale(.97); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 4rem;
  max-width: 800px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--ff-mono);
  font-size: .85rem;
  color: var(--clr-purple-lt);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.blink-cursor {
  animation: blink 1s step-end infinite;
  color: var(--clr-accent);
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-title {
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
  color: #fff;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(226,232,240,.7);
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

/* Buttons */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--r-sm);
  font-size: .95rem;
  font-weight: 600;
  transition: all .25s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-bg);
  color: #fff;
  box-shadow: 0 0 24px rgba(109,40,217,.4);
}
.btn-primary:hover {
  opacity: .9;
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(109,40,217,.55);
}

.btn-ghost {
  border: 1px solid var(--clr-border-hi);
  color: var(--clr-purple-lt);
  background: rgba(139,92,246,.07);
}
.btn-ghost:hover {
  background: rgba(139,92,246,.15);
  border-color: var(--clr-purple-lt);
  transform: translateY(-2px);
}

.btn-full { width: 100%; }

/* Stats bar */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: .2rem; }
.stat-num  { font-size: 1.6rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-label { font-size: .78rem; color: rgba(226,232,240,.5); text-transform: uppercase; letter-spacing: .06em; }
.stat-divider { width: 1px; height: 36px; background: var(--clr-border); flex-shrink: 0; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .3rem;
}
.scroll-dot {
  display: block;
  width: 6px; height: 6px;
  background: var(--clr-purple-lt);
  border-radius: 50%;
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }

/* ═══════════════════════════════════════════════════════════════════════════
   SECTION HEADERS (shared)
═══════════════════════════════════════════════════════════════════════════ */
.section-header { text-align: center; margin-bottom: clamp(3rem, 6vw, 5rem); }

.section-eyebrow {
  font-family: var(--ff-mono);
  font-size: .8rem;
  color: var(--clr-purple-lt);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: .75rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: rgba(226,232,240,.6);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SERVICES
═══════════════════════════════════════════════════════════════════════════ */
.services { background: var(--clr-bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--gap);
}

/* Service card */
.service-card {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 2rem 1.75rem 2rem;
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
  cursor: default;
}

.service-card::before {
  content: attr(data-index);
  position: absolute;
  top: 1.25rem; right: 1.5rem;
  font-family: var(--ff-mono);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(139,92,246,.06);
  line-height: 1;
  user-select: none;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-hi);
  box-shadow: 0 20px 60px rgba(109,40,217,.2);
}

.service-card.featured {
  background: linear-gradient(145deg, rgba(109,40,217,.15) 0%, rgba(29,78,216,.1) 100%);
  border-color: rgba(139,92,246,.3);
}
.service-card.featured:hover {
  box-shadow: 0 20px 60px rgba(109,40,217,.35);
}

.card-glow {
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.service-card:hover .card-glow { opacity: 1; }

.card-badge {
  position: absolute;
  top: 1.1rem; right: 1.25rem;
  background: var(--gradient-bg);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .2rem .6rem;
  border-radius: 99px;
}

.card-icon {
  width: 48px; height: 48px;
  color: var(--clr-purple-lt);
  margin-bottom: 1.5rem;
  transition: color .3s;
}
.service-card:hover .card-icon { color: var(--clr-blue-lt); }

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .75rem;
  line-height: 1.3;
}

.card-desc {
  font-size: .9rem;
  color: rgba(226,232,240,.6);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.card-tags li {
  font-family: var(--ff-mono);
  font-size: .72rem;
  color: var(--clr-purple-lt);
  background: rgba(139,92,246,.1);
  border: 1px solid rgba(139,92,246,.2);
  padding: .2rem .6rem;
  border-radius: var(--r-sm);
  letter-spacing: .04em;
}

/* ═══════════════════════════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════════════════════════ */
.about {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
}

/* Pioneer Timeline */
.pioneer-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.timeline-card {
  position: relative;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  transition: border-color .3s, transform .3s var(--ease);
}
.timeline-card:hover {
  border-color: var(--clr-border-hi);
  transform: translateY(-4px);
}

.timeline-year {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: .75rem;
  font-weight: 600;
  color: var(--clr-accent);
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.25);
  padding: .15rem .6rem;
  border-radius: 99px;
  margin-bottom: 1rem;
  letter-spacing: .05em;
}

.timeline-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .5rem;
}

.timeline-card p {
  font-size: .875rem;
  color: rgba(226,232,240,.6);
  line-height: 1.7;
}

/* Founders Grid */
.founders-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  margin-bottom: clamp(3rem, 6vw, 4rem);
}

.founder-card {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: border-color .3s, box-shadow .3s;
}
.founder-card:hover {
  border-color: var(--clr-border-hi);
  box-shadow: 0 20px 60px rgba(109,40,217,.15);
}

.founder-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.founder-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gradient-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

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

.avatar-initials {
  font-family: var(--ff-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: .05em;
}

.founder-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.founder-role {
  font-family: var(--ff-mono);
  font-size: .8rem;
  color: var(--clr-purple-lt);
  letter-spacing: .03em;
}

.founder-bio {
  font-size: .875rem;
  color: rgba(226,232,240,.6);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.founder-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1.25rem;
}

.badge {
  font-family: var(--ff-mono);
  font-size: .7rem;
  color: var(--clr-accent);
  background: rgba(6,182,212,.08);
  border: 1px solid rgba(6,182,212,.2);
  padding: .2rem .55rem;
  border-radius: var(--r-sm);
  letter-spacing: .03em;
}

.founder-links {
  display: flex;
  gap: .75rem;
}

.founder-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .8rem;
  font-weight: 500;
  color: var(--clr-purple-lt);
  padding: .35rem .75rem;
  border: 1px solid rgba(139,92,246,.2);
  border-radius: var(--r-sm);
  transition: all .2s var(--ease);
}
.founder-link:hover {
  background: rgba(139,92,246,.1);
  border-color: var(--clr-purple-lt);
  color: #fff;
}
.founder-link svg {
  width: 14px;
  height: 14px;
  display: inline;
}

/* About Values */
.about-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.value-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.value-icon {
  font-size: 1.1rem;
  color: var(--clr-purple-lt);
  flex-shrink: 0;
  margin-top: .15rem;
}

.value-item strong {
  display: block;
  font-size: .95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: .2rem;
}
.value-item p {
  font-size: .875rem;
  color: rgba(226,232,240,.55);
  line-height: 1.6;
}

/* Inline links */
.inline-link {
  color: var(--clr-purple-lt);
  text-decoration: underline;
  text-decoration-color: rgba(139,92,246,.3);
  text-underline-offset: 2px;
  transition: color .2s, text-decoration-color .2s;
}
.inline-link:hover {
  color: #fff;
  text-decoration-color: var(--clr-purple-lt);
}

/* ═══════════════════════════════════════════════════════════════════════════
   AI PROJECTS
═══════════════════════════════════════════════════════════════════════════ */
.ai-section {
  margin-top: clamp(3rem, 6vw, 5rem);
  margin-bottom: clamp(3rem, 6vw, 4rem);
}

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

.ai-card {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-bg);
  opacity: 0;
  transition: opacity .3s;
}

.ai-card:hover {
  border-color: var(--clr-border-hi);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(109,40,217,.15);
}

.ai-card:hover::before { opacity: 1; }

.ai-card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.ai-card-logo {
  height: 48px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
}

.ai-card-logo img {
  height: 100%;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.ai-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .25rem;
}

.ai-card-project {
  font-family: var(--ff-mono);
  font-size: .75rem;
  color: var(--clr-purple-lt);
  letter-spacing: .03em;
  margin-bottom: 1rem;
}

.ai-card-desc {
  font-size: .875rem;
  color: rgba(226,232,240,.6);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.ai-card-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  font-weight: 500;
  color: var(--clr-accent);
  transition: color .2s;
}
.ai-card-link:hover { color: #fff; }
.ai-card-link svg {
  width: 16px;
  height: 16px;
  display: inline;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════════════════════════ */
.contact { background: var(--clr-bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

label {
  font-size: .825rem;
  font-weight: 500;
  color: rgba(226,232,240,.7);
  letter-spacing: .03em;
}

.optional {
  font-size: .75rem;
  color: rgba(226,232,240,.35);
  font-weight: 400;
}

input, select, textarea {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: .7rem 1rem;
  color: #e2e8f0;
  font-size: .9rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}

input::placeholder, textarea::placeholder { color: rgba(226,232,240,.25); }
input:focus, select:focus, textarea:focus {
  border-color: var(--clr-purple);
  box-shadow: 0 0 0 3px rgba(139,92,246,.15);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b5cf6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
select option { background: var(--clr-surface2); }

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

input.error, select.error, textarea.error {
  border-color: #f87171;
}

.field-error {
  font-size: .75rem;
  color: #f87171;
  min-height: 1em;
}

/* Submit button state */
#submit-btn {
  position: relative;
}
.btn-loader {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

#submit-btn.loading .btn-text { opacity: 0; }
#submit-btn.loading .btn-loader { display: block; position: absolute; }

/* Success message */
.form-success {
  background: rgba(52,211,153,.1);
  border: 1px solid rgba(52,211,153,.3);
  border-radius: var(--r-sm);
  padding: .9rem 1.1rem;
  font-size: .9rem;
  color: #34d399;
  text-align: center;
}

/* Contact info sidebar */
.contact-info { display: flex; flex-direction: column; gap: 1.25rem; }

.info-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 1.75rem;
}

.info-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 1.25rem;
}

.info-list { display: flex; flex-direction: column; gap: 1.1rem; }
.info-list li { display: flex; align-items: flex-start; gap: .9rem; }

.info-icon {
  width: 38px; height: 38px;
  background: rgba(139,92,246,.12);
  border: 1px solid rgba(139,92,246,.2);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.info-icon svg { width: 18px; height: 18px; color: var(--clr-purple-lt); }

.info-label {
  display: block;
  font-size: .72rem;
  color: rgba(226,232,240,.4);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: .15rem;
}
.info-value {
  font-size: .9rem;
  color: rgba(226,232,240,.85);
  font-weight: 500;
}
a.info-value:hover { color: var(--clr-purple-lt); }

/* Highlight card */
.info-highlight {
  background: linear-gradient(135deg, rgba(109,40,217,.18) 0%, rgba(29,78,216,.12) 100%);
  border-color: rgba(139,92,246,.25);
}
.highlight-label {
  font-family: var(--ff-mono);
  font-size: .75rem;
  color: var(--clr-purple-lt);
  margin-bottom: .75rem;
  letter-spacing: .07em;
}
.info-highlight blockquote {
  font-size: .95rem;
  color: rgba(226,232,240,.8);
  line-height: 1.7;
  font-style: italic;
  border-left: 3px solid var(--clr-purple);
  padding-left: 1rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════════════════ */
.footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding-block: 2rem;
}

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

.footer-copy {
  font-size: .825rem;
  color: rgba(226,232,240,.35);
  order: 2;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem 1.5rem;
  order: 3;
}
.footer-nav a {
  font-size: .825rem;
  color: rgba(226,232,240,.4);
  transition: color .2s;
}
.footer-nav a:hover { color: var(--clr-purple-lt); }

/* ═══════════════════════════════════════════════════════════════════════════
   CLIENTS
═══════════════════════════════════════════════════════════════════════════ */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
  margin-top: 3rem;
}

.client-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem 1.5rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  text-align: center;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  text-decoration: none;
  color: inherit;
}
.client-card:hover {
  border-color: var(--clr-border-hi);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(139,92,246,.12);
}
.client-card--wide { grid-column: 1 / -1; }

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
}
.client-logo img {
  max-height: 52px;
  max-width: 180px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(1) contrast(1);
}

.client-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  justify-content: center;
  list-style: none;
  padding: 0;
}
.client-tags li {
  font-size: .68rem;
  padding: .2rem .6rem;
  border-radius: 99px;
  background: rgba(139,92,246,.12);
  color: var(--clr-purple-lt);
  border: 1px solid rgba(139,92,246,.2);
  white-space: nowrap;
}

.client-desc {
  font-size: .8rem;
  color: rgba(226,232,240,.55);
  line-height: 1.5;
  text-align: left;
}
.client-desc strong { color: rgba(226,232,240,.85); }

.client-logo-white {
  background: #fff;
  border-radius: .5rem;
  padding: .5rem .75rem;
}

/* ─── FOOTER SOCIAL ───────────────────────────────────────────────────────── */
.nav-social {
  display: flex;
  gap: .5rem;
  align-items: center;
}
.nav-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(226,232,240,.5);
  transition: color .2s;
}
.nav-social-link:hover { color: var(--clr-purple-lt); }

.footer-social {
  display: flex;
  gap: .75rem;
  align-items: center;
}
.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--clr-border);
  color: rgba(226,232,240,.5);
  transition: color .2s, border-color .2s;
}
.footer-social-link:hover { color: var(--clr-purple-lt); border-color: var(--clr-border-hi); }

/* ═══════════════════════════════════════════════════════════════════════════
   REVEAL ANIMATIONS
═══════════════════════════════════════════════════════════════════════════ */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-delay="1"] { transition-delay: .1s; }
[data-reveal-delay="2"] { transition-delay: .2s; }
[data-reveal-delay="3"] { transition-delay: .3s; }
[data-reveal-delay="4"] { transition-delay: .4s; }

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .pioneer-timeline { grid-template-columns: 1fr; }
  .founders-grid { grid-template-columns: 1fr; }
  .about-values-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  #navbar { background: rgba(10,10,15,.92); }
  .nav-links { display: none; }
  .nav-inner .lang-switcher { display: none; }
  .nav-inner .nav-social { display: none; }
  .burger { display: flex; }
  .mobile-menu { display: block; background: var(--clr-surface2); backdrop-filter: none; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .stat-divider { display: none; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-copy { order: 3; }
  .footer-nav { order: 2; }
}

@media (max-width: 400px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .founder-header { flex-direction: column; text-align: center; }
  .founder-badges { justify-content: center; }
  .founder-links { justify-content: center; }
}