/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: #06070f;
  color: #e2e8f0;
  line-height: 1.65;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== VARIABLES ===== */
:root {
  --teal: #2dd4bf;
  --teal-glow: rgba(45,212,191,.18);
  --purple: #818cf8;
  --bg: #06070f;
  --bg-2: #0d0f1e;
  --bg-card: rgba(255,255,255,.04);
  --border: rgba(255,255,255,.08);
  --border-hover: rgba(45,212,191,.35);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --radius: 14px;
  --radius-sm: 8px;
}

.container { max-width: 1480px; margin: 0 auto; padding: 0 60px; }

/* ===== EYEBROW ===== */
.eyebrow {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 14px; }
.section-sub { color: var(--text-muted); font-size: .95rem; max-width: 600px; margin: 0 auto; line-height: 1.8; }

/* ===== GRAD TEXT ===== */
.grad-text {
  background: linear-gradient(135deg, var(--teal) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  padding: 0;
  transition: background .35s, border-color .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6,7,15,.92);
  backdrop-filter: blur(20px);
  border-color: var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: inline-flex; align-items: baseline; gap: 1px; }
.logo-d { font-size: 1.5rem; font-weight: 900; color: var(--teal); }
.logo-rest { font-size: 1.2rem; font-weight: 700; color: #fff; }
.logo-ko { font-size: .6rem; font-weight: 600; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-left: 5px; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a { font-size: .85rem; font-weight: 500; color: var(--text-muted); transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-cta {
  background: var(--teal) !important;
  color: #000 !important;
  font-weight: 700 !important;
  padding: 9px 22px;
  border-radius: 24px;
  font-size: .82rem !important;
  transition: opacity .2s !important;
}
.nav-cta:hover { opacity: .85; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { width: 22px; height: 1.5px; background: #fff; display: block; transition: .3s; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}
.hero-glow-1 {
  width: 600px; height: 600px;
  background: rgba(45,212,191,.1);
  top: -100px; left: -100px;
}
.hero-glow-2 {
  width: 500px; height: 500px;
  background: rgba(129,140,248,.08);
  bottom: 0; right: -100px;
}
.hero-inner { position: relative; z-index: 1; text-align: center; max-width: 1000px; margin: 0 auto; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(45,212,191,.1);
  border: 1px solid rgba(45,212,191,.2);
  color: var(--teal);
  font-size: .8rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 24px;
  margin-bottom: 28px;
  letter-spacing: .3px;
}
.hero h1 {
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  font-weight: 900;
  line-height: 1.05;
  color: #fff;
  margin-bottom: 24px;
  letter-spacing: -2px;
}
.hero-sub { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 40px; line-height: 1.8; font-weight: 300; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  padding: 14px 32px;
  border-radius: 10px;
  transition: opacity .2s, transform .2s;
  display: inline-block;
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: .9rem;
  padding: 14px 32px;
  border-radius: 10px;
  transition: all .2s;
  display: inline-block;
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.hero-metrics { display: flex; align-items: center; justify-content: center; gap: 32px; }
.metric { text-align: center; }
.metric-num { display: block; font-size: 2rem; font-weight: 900; color: #fff; line-height: 1; }
.metric-num em { color: var(--teal); font-style: normal; }
.metric-label { display: block; font-size: .75rem; color: var(--text-muted); margin-top: 4px; }
.metric-div { width: 1px; height: 40px; background: var(--border); }

/* ===== SECTION BASE ===== */
.section { padding: 100px 0; }

/* ===== ABOUT ===== */
.about { background: var(--bg-2); border-top: 1px solid var(--border); }
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.about-left { }
.about-left h2 { font-size: clamp(1.6rem, 2.5vw, 2rem); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 20px; }
.about-left p { color: var(--text-muted); font-size: .9rem; line-height: 1.9; margin-bottom: 14px; }
.about-right { display: flex; flex-direction: column; gap: 16px; }
.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: border-color .25s, background .25s;
}
.about-card:hover { border-color: var(--border-hover); background: rgba(45,212,191,.04); }
.ac-icon { font-size: 1.5rem; margin-bottom: 10px; }
.about-card h4 { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.about-card p { font-size: .83rem; color: var(--text-muted); line-height: 1.7; }

/* ===== SERVICES ===== */
.services { background: var(--bg); position: relative; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: all .25s;
  position: relative;
  overflow: hidden;
}
.svc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--purple));
  opacity: 0;
  transition: opacity .25s;
}
.svc-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,.3); }
.svc-card:hover::before { opacity: 1; }
.svc-num { font-size: .7rem; font-weight: 800; color: var(--teal); letter-spacing: 1px; margin-bottom: 14px; }
.svc-card h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.svc-card p { font-size: .84rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.svc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.svc-tags span { background: rgba(45,212,191,.1); border: 1px solid rgba(45,212,191,.2); color: var(--teal); font-size: .72rem; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.svc-link { margin-top: 18px; font-size: .8rem; font-weight: 700; color: var(--teal); opacity: 0; transform: translateX(-6px); transition: opacity .2s, transform .2s; }
.svc-card:hover .svc-link { opacity: 1; transform: translateX(0); }
a.svc-card { display: block; text-decoration: none; color: inherit; cursor: pointer; }

/* ===== EXPAND BUTTON ===== */
.expand-btn-wrap {
  display: flex;
  justify-content: center;
  margin: 24px 0 0;
}
.expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 600;
  font-family: inherit;
  padding: 12px 28px;
  border-radius: 40px;
  cursor: pointer;
  transition: all .25s;
}
.expand-btn:hover { border-color: var(--teal); color: var(--teal); }
.expand-btn.open { color: var(--teal); border-color: var(--teal); }
.expand-btn.open span::before { content: 'Show Less'; }
.expand-btn.open span { font-size: 0; }
.expand-btn.open span::before { font-size: .85rem; }
.expand-arrow {
  width: 18px; height: 18px;
  transition: transform .35s;
  flex-shrink: 0;
}
.expand-btn.open .expand-arrow { transform: rotate(180deg); }

/* Grid expand animation */
.expand-grid {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  transition: max-height .6s cubic-bezier(.4,0,.2,1), opacity .45s ease, margin-top .3s;
  pointer-events: none;
}
.expand-grid.collapsed { max-height: 0; opacity: 0; margin-top: 0; pointer-events: none; }
.expand-grid.open { max-height: 3000px; opacity: 1; margin-top: 24px; pointer-events: all; }

/* ===== CONSULTING ===== */
.consulting {
  background: var(--bg);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cst-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.cst-glow-1 { width: 500px; height: 400px; background: rgba(129,140,248,.07); top: 0; right: -80px; }
.cst-glow-2 { width: 400px; height: 300px; background: rgba(45,212,191,.06); bottom: 0; left: -60px; }

.cst-approach {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 44px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}
.cst-approach h3 { font-size: 1.15rem; font-weight: 800; color: #fff; margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
/* Approach toggle button */
.cst-approach-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  text-align: left;
}
.cst-approach-toggle h3 { font-size: 1.15rem; font-weight: 800; color: #fff; margin: 0; }
.cst-toggle-icon { color: var(--teal); font-size: 1rem; transition: transform .3s; }
.cst-approach-toggle[aria-expanded="false"] .cst-toggle-icon { transform: rotate(180deg); }
#cstSteps { overflow: hidden; transition: max-height .4s ease, opacity .3s ease; max-height: 600px; opacity: 1; }
#cstSteps.collapsed { max-height: 0; opacity: 0; margin-bottom: 0; }

.cst-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cst-step { display: flex; flex-direction: column; gap: 12px; }
.cst-step-num { font-size: .7rem; font-weight: 800; color: var(--teal); letter-spacing: 1px; }
.cst-step-body h4 { font-size: .9rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.cst-step-body p { font-size: .82rem; color: var(--text-muted); line-height: 1.75; }

/* ===== MARKETING ===== */
.marketing {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.mkt-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.mkt-glow-1 { width: 500px; height: 400px; background: rgba(45,212,191,.07); top: 0; left: -100px; }
.mkt-glow-2 { width: 400px; height: 400px; background: rgba(129,140,248,.06); bottom: 0; right: -80px; }

/* Intro strip */
.mkt-intro {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 44px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}
.mkt-intro .cst-approach-toggle { padding-bottom: 0; border-bottom: none; margin-bottom: 0; }
.mkt-intro .cst-approach-toggle[aria-expanded="true"] { padding-bottom: 16px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
#mktIntroBody { overflow: hidden; transition: max-height .4s ease, opacity .3s ease; max-height: 400px; opacity: 1; }
#mktIntroBody.collapsed { max-height: 0; opacity: 0; }
.mkt-intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.mkt-intro-text p { font-size: .86rem; color: var(--text-muted); line-height: 1.9; margin-bottom: 10px; }
.mkt-intro-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.mis { background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 10px; padding: 18px 16px; text-align: center; }
.mis strong { display: block; font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.mis span { font-size: .75rem; color: var(--text-muted); }

/* Cards */
.mkt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
  z-index: 1;
}
.mkt-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: all .25s;
}
.mkt-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: 0 12px 36px rgba(0,0,0,.3); background: rgba(45,212,191,.04); }
.mkt-icon { font-size: 1.6rem; margin-bottom: 12px; display: block; }
.mkt-card h4 { font-size: .9rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.mkt-card p { font-size: .81rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 14px; }
.mkt-list { display: flex; flex-direction: column; gap: 6px; }
.mkt-list li {
  font-size: .78rem;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}
.mkt-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-weight: 700;
}
/* Card — always expanded */
.cst-card-header { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; }
.cst-card-header .mkt-icon { flex-shrink: 0; }
.cst-card-header h4 { flex: 1; margin-bottom: 0; }
.cst-card-body { }
.cst-card-body p { margin-bottom: 10px; }

.mkt-card-highlight {
  border-color: rgba(45,212,191,.3) !important;
  background: rgba(45,212,191,.05) !important;
  position: relative;
}
.mkt-card-highlight::after {
  content: 'Core Service';
  position: absolute;
  top: 16px; right: 16px;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(45,212,191,.12);
  border: 1px solid rgba(45,212,191,.25);
  padding: 3px 10px;
  border-radius: 20px;
}

/* ===== INDUSTRY ===== */
.industry { background: var(--bg-2); border-top: 1px solid var(--border); position: relative; overflow: hidden; }
.industry-glow { position: absolute; width: 600px; height: 300px; background: rgba(129,140,248,.07); border-radius: 50%; filter: blur(80px); top: 50%; left: 50%; transform: translate(-50%,-50%); pointer-events: none; }
.industry-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 14px; position: relative; z-index: 1; }
.ind-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all .25s;
}
.ind-card:hover { border-color: var(--border-hover); background: rgba(45,212,191,.04); transform: translateY(-2px); }
.ind-icon { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.ind-card h4 { font-size: .88rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.ind-card p { font-size: .78rem; color: var(--text-muted); line-height: 1.5; }

/* ===== VALUES ===== */
.values { background: var(--bg); }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.val-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  position: relative;
  transition: all .25s;
}
.val-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,.25); }
.val-num { font-size: .68rem; font-weight: 800; color: rgba(45,212,191,.4); letter-spacing: 1px; margin-bottom: 16px; }
.val-icon { font-size: 1.8rem; margin-bottom: 14px; display: block; }
.val-card h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.val-card p { font-size: .83rem; color: var(--text-muted); line-height: 1.8; }

/* ===== CONTACT ===== */
.contact { background: var(--bg-2); border-top: 1px solid var(--border); position: relative; overflow: hidden; }
.contact-glow { position: absolute; width: 500px; height: 500px; background: rgba(45,212,191,.06); border-radius: 50%; filter: blur(100px); bottom: -200px; right: -100px; pointer-events: none; }
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; position: relative; z-index: 1; }
.contact-left h2 { font-size: clamp(1.6rem, 2.5vw, 2rem); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 14px; }
.contact-left > p { color: var(--text-muted); font-size: .9rem; margin-bottom: 40px; line-height: 1.8; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.cd { display: flex; flex-direction: column; gap: 4px; }
.cd-l { font-size: .7rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); }
.cd span, .cd a { font-size: .88rem; color: var(--text-muted); line-height: 1.7; transition: color .2s; }
.cd a:hover { color: var(--teal); }

.contact-form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: .88rem;
  font-family: inherit;
  color: #fff;
  outline: none;
  transition: border-color .2s, background .2s;
  width: 100%;
  -webkit-appearance: none;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--teal); background: rgba(45,212,191,.04); }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form select { color: var(--text-muted); }
.contact-form select.filled { color: #fff; }
.contact-form select option { background: #1a1a2e; }
.btn-submit {
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: .9rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  margin-top: 4px;
  transition: opacity .2s, transform .2s;
}
.btn-submit:hover { opacity: .9; transform: translateY(-1px); }

/* ===== FOOTER ===== */
.footer { background: #020309; border-top: 1px solid var(--border); padding: 52px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-logo { margin-bottom: 10px; }
.footer-sub { font-size: .8rem; color: var(--text-muted); line-height: 1.8; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: .84rem; color: var(--text-muted); transition: color .2s; }
.footer-links a:hover { color: var(--teal); }
.footer-info p { font-size: .8rem; color: var(--text-muted); margin-bottom: 4px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 32px; text-align: center; }
.footer-bottom p { font-size: .76rem; color: rgba(255,255,255,.25); }

/* ===== FADE IN ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s, transform .6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-wrap { grid-template-columns: 1fr; gap: 40px; }
  .mkt-grid { grid-template-columns: repeat(2, 1fr); }
  .mkt-intro-inner { grid-template-columns: 1fr; gap: 32px; }
  .cst-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(6,7,15,.97);
    backdrop-filter: blur(20px);
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .hamburger { display: flex; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .mkt-grid { grid-template-columns: 1fr 1fr; }
  .cst-steps { grid-template-columns: 1fr; }
  .cst-approach { padding: 28px 20px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .hero-metrics { gap: 20px; }
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }
  .industry-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 540px) {
  .services-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-div { display: none; }
}