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

:root {
  --bg:        #050a14;
  --bg-card:   #0c1220;
  --bg-card2:  #0f172a;
  --border:    rgba(255,255,255,0.07);
  --blue:      #3b82f6;
  --blue-dark: #1d4ed8;
  --orange:    #f97316;
  --text:      #e2e8f0;
  --text-muted:#64748b;
  --text-dim:  #94a3b8;
  --white:     #ffffff;
  --radius:    12px;
  --radius-lg: 20px;
  --transition:0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a { text-decoration: none; color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

/* ─── Gradient Text ────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--blue) 0%, #a855f7 50%, var(--orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Section Header ───────────────────────────────────────────── */
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-dim);
}

/* ─── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: inherit;
}

.btn--primary {
  background: linear-gradient(135deg, var(--blue), #6d28d9);
  color: #fff;
  box-shadow: 0 0 30px rgba(59,130,246,0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(59,130,246,0.5);
}

.btn--outline {
  border: 1.5px solid rgba(255,255,255,0.2);
  color: var(--white);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn--ghost {
  background: rgba(255,255,255,0.06);
  color: var(--white);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
}

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

/* ─── Nav ──────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(5,10,20,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--white);
}

.nav__logo span { color: var(--blue); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--white); }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ─── Hero ─────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59,130,246,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(109,40,217,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 10% 90%, rgba(249,115,22,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 24px;
}

.hero__headline {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: 1.2rem;
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 80px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__scroll-line {
  width: 48px;
  height: 1px;
  background: var(--text-muted);
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleX(0); transform-origin: left; }
  50%  { transform: scaleX(1); transform-origin: left; }
  51%  { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ─── Clients ──────────────────────────────────────────────────── */
.clients {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.clients__label {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.clients__track { overflow: hidden; }

.clients__list {
  display: flex;
  gap: 64px;
  animation: marquee 20s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.clients__list span {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
}

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

/* ─── Services ─────────────────────────────────────────────────── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), #a855f7);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  width: 48px;
  height: 48px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--blue);
}

.service-card__icon svg { width: 22px; height: 22px; }

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  transition: gap var(--transition);
}

.service-card__link:hover { text-decoration: underline; }

/* ─── Stats ────────────────────────────────────────────────────── */
.stats {
  background: var(--bg-card2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item__number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--white), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-item__label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ─── Work ─────────────────────────────────────────────────────── */
.work__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: transform var(--transition);
}

.case-card:hover { transform: translateY(-4px); }

.case-card--large {
  grid-row: span 2;
  min-height: auto;
}

.case-card__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.case-card__content {
  position: relative;
  z-index: 1;
  padding: 36px 32px;
  background: linear-gradient(to top, rgba(5,10,20,0.9) 0%, transparent 100%);
}

.case-card__tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

.case-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.case-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  max-width: 400px;
}

.case-card__metric {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.case-card__metric-num {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.case-card__metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ─── About ────────────────────────────────────────────────────── */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.about__text > p {
  color: var(--text-dim);
  margin-bottom: 40px;
  line-height: 1.75;
}

.about__pillars { display: flex; flex-direction: column; gap: 24px; }

.pillar {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.pillar__num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 6px;
  padding: 4px 8px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pillar strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pillar p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.about__visual {
  position: relative;
  height: 420px;
}

.about__card-stack { position: relative; height: 100%; }

.about__metric-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  min-width: 220px;
  transition: all var(--transition);
}

.about__metric-card:hover { border-color: rgba(59,130,246,0.4); }

.about__metric-card--1 { top: 0; right: 0; width: 260px; }
.about__metric-card--2 { top: 50%; left: 0; transform: translateY(-50%); width: 240px; }
.about__metric-card--3 { bottom: 0; right: 40px; width: 230px; }

.about__metric-card-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.about__metric-card-val {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--white), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.about__metric-card-trend {
  font-size: 0.8rem;
  color: #22c55e;
  font-weight: 600;
}

/* ─── Testimonials ─────────────────────────────────────────────── */
.testimonials { background: var(--bg-card2); }

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
}

.testimonial-card__stars {
  color: #fbbf24;
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), #6d28d9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
}

.testimonial-card__author span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── CTA Section ──────────────────────────────────────────────── */
.cta-section { padding: 100px 0; }

.cta-section__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.cta-section__glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 40px;
}

/* ─── Form ─────────────────────────────────────────────────────── */
.cta-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}

.cta-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.cta-form input,
.cta-form select,
.cta-form textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus {
  border-color: var(--blue);
}

.cta-form input::placeholder,
.cta-form textarea::placeholder {
  color: var(--text-muted);
}

.cta-form select option { background: var(--bg-card2); }

.cta-form textarea { resize: vertical; }

.cta-form__success {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: var(--radius-lg);
}

.cta-form__success > div {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(34,197,94,0.15);
  border: 1px solid rgba(34,197,94,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #22c55e;
  margin-bottom: 8px;
}

.cta-form__success strong {
  font-size: 1.2rem;
}

.cta-form__success p {
  color: var(--text-muted);
  margin: 0;
}

/* ─── Footer ───────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding-top: 64px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  padding-bottom: 64px;
}

.footer__brand p {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.7;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer__social a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dim);
  transition: all var(--transition);
}

.footer__social a:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.footer__links {
  display: flex;
  gap: 64px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col strong {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 4px;
}

.footer__col a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__col a:hover { color: var(--white); }

.footer__bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── Scroll Reveal ────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ─── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .about__inner { grid-template-columns: 1fr; gap: 60px; }
  .about__visual { height: 360px; }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(5,10,20,0.97);
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
    backdrop-filter: blur(20px);
  }
  .nav__links.open { right: 0; }
  .nav__links a { font-size: 1.1rem; }
  .nav__burger { display: flex; }

  .section { padding: 64px 0; }

  .hero__headline { font-size: 2.6rem; }
  .hero__scroll { display: none; }

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

  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }

  .work__grid { grid-template-columns: 1fr; }
  .case-card--large { grid-row: span 1; }

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

  .cta-form__row { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__bottom .container { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}