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

:root {
  --blue: #0a6cff;
  --blue-dk: #0550cc;
  --blue-lt: #e8f2ff;
  --blue-glow: #0a6cff0f;
  --bg: #f5f8ff;
  --bg-alt: #eef3ff;
  --surface: #ffffff;
  --surface-lt: #f9fbff;
  --card: #ffffff;
  --card-hover: #f4f8ff;
  --border: #dde6f5;
  --border-blue: rgba(10, 108, 255, 0.18);
  --text: #0d1829;
  --text-sec: #4a5e7a;
  --text-muted: #8fa3bf;
  --white: #ffffff;
  --green: #059669;
  --green-lt: #ecfdf5;
  --amber: #d97706;
  --amber-lt: #fffbeb;
  --rose: #e11d48;
  --rose-lt: #fff1f2;
  --violet: #7c3aed;
  --violet-lt: #f5f3ff;
  --teal: #0d9488;
  --teal-lt: #f0fdfa;
  --r: 14px;
  --r-lg: 20px;
}

html {
  scroll-behavior: smooth;
}

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

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--blue);
  border-radius: 3px;
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse 80% 60% at 65% 40%,
      rgba(10, 108, 255, 0.07) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 50% 40% at 20% 75%,
      rgba(13, 148, 136, 0.05) 0%,
      transparent 60%
    ),
    var(--bg);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 108, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 108, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(
    ellipse 70% 70% at 65% 40%,
    black 0%,
    transparent 80%
  );
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-lt);
  border: 1px solid var(--border-blue);
  border-radius: 100px;
  padding: 6px 14px 6px 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.6);
  }
}

.hero-title {
  font-family: "Open Sans", sans-serif;
  font-size: clamp(38px, 5vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-title span {
  background: linear-gradient(135deg, #0a6cff 0%, #0550cc 50%, #0d9488 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-sec);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--text);
  font-family: "Open Sans", sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.25s;
}

.btn-ghost:hover {
  background: var(--blue-lt);
  border-color: var(--border-blue);
  color: var(--blue);
  transform: translateY(-2px);
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.hero-stat-num {
  font-family: "Open Sans", sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.hero-stat-num span {
  color: var(--blue);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-orb {
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(10, 108, 255, 0.08),
    rgba(13, 148, 136, 0.04) 50%,
    transparent 70%
  );
  border: 1px solid rgba(10, 108, 255, 0.12);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: orb-float 6s ease-in-out infinite;
}

@keyframes orb-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-16px);
  }
}

.hero-orb::before {
  content: "";
  position: absolute;
  inset: 20px;
  border-radius: 50%;
  border: 1px solid rgba(10, 108, 255, 0.09);
}

.hero-orb::after {
  content: "";
  position: absolute;
  inset: 50px;
  border-radius: 50%;
  border: 1px solid rgba(10, 108, 255, 0.06);
}

.hero-brand-logo {
  width: 160px;
  height: auto;
  position: relative;
  z-index: 1;
}

.hero-badge {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 30px rgba(10, 50, 120, 0.1);
}

.hero-badge.b1 {
  top: 40px;
  right: -20px;
}

.hero-badge.b2 {
  bottom: 60px;
  left: -30px;
}

.hero-badge.b3 {
  top: 50%;
  right: -40px;
  transform: translateY(-50%);
}

.badge-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── SECTION BASE ── */
section {
  position: relative;
  z-index: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-pad {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
  padding: 5px 12px;
  background: var(--blue-lt);
  border: 1px solid var(--border-blue);
  border-radius: 100px;
}

.section-title {
  font-family: "Open Sans", sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-sec);
  line-height: 1.7;
}

/* ── SERVICES ── */
#services {
  background: var(--surface);
}

#services::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--border-blue),
    transparent
  );
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: block;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  opacity: 0;
  transition: opacity 0.35s;
}

.service-card:hover {
  border-color: var(--card-accent);
  transform: translateY(-6px);
  box-shadow:
    0 16px 48px rgba(10, 50, 120, 0.1),
    0 0 0 1px var(--card-accent);
}

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

.service-card.c-blue {
  --card-accent: rgba(10, 108, 255, 0.35);
}

.service-card.c-blue::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(10, 108, 255, 0.05),
    transparent 60%
  );
}

.service-card.c-green {
  --card-accent: rgba(5, 150, 105, 0.35);
}

.service-card.c-green::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(5, 150, 105, 0.05),
    transparent 60%
  );
}

.service-card.c-amber {
  --card-accent: rgba(217, 119, 6, 0.35);
}

.service-card.c-amber::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(217, 119, 6, 0.05),
    transparent 60%
  );
}

.service-card.c-rose {
  --card-accent: rgba(225, 29, 72, 0.35);
}

.service-card.c-rose::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(225, 29, 72, 0.05),
    transparent 60%
  );
}

.service-card.c-violet {
  --card-accent: rgba(124, 58, 237, 0.35);
}

.service-card.c-violet::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(124, 58, 237, 0.05),
    transparent 60%
  );
}

.service-card.c-teal {
  --card-accent: rgba(13, 148, 136, 0.35);
}

.service-card.c-teal::before {
  background: radial-gradient(
    ellipse at top left,
    rgba(13, 148, 136, 0.05),
    transparent 60%
  );
}

.service-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.c-blue .service-icon-wrap {
  background: rgba(10, 108, 255, 0.1);
  border: 1px solid rgba(10, 108, 255, 0.2);
}

.c-green .service-icon-wrap {
  background: rgba(5, 150, 105, 0.1);
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.c-amber .service-icon-wrap {
  background: rgba(217, 119, 6, 0.1);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.c-rose .service-icon-wrap {
  background: rgba(225, 29, 72, 0.1);
  border: 1px solid rgba(225, 29, 72, 0.2);
}

.c-violet.service-icon-wrap {
  background: rgba(124, 58, 237, 0.1);
}

.c-violet .service-icon-wrap {
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
}

.c-teal .service-icon-wrap {
  background: rgba(13, 148, 136, 0.1);
  border: 1px solid rgba(13, 148, 136, 0.2);
}

.service-icon-wrap svg {
  width: 24px;
  height: 24px;
}

.c-blue .service-icon-wrap svg {
  color: var(--blue);
}

.c-green .service-icon-wrap svg {
  color: var(--green);
}

.c-amber .service-icon-wrap svg {
  color: var(--amber);
}

.c-rose .service-icon-wrap svg {
  color: var(--rose);
}

.c-violet .service-icon-wrap svg {
  color: var(--violet);
}

.c-teal .service-icon-wrap svg {
  color: var(--teal);
}

.service-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-family: "Open Sans", sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.service-title {
  font-family: "Open Sans", sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
}

.service-desc {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.65;
  position: relative;
  z-index: 1;
  margin-bottom: 24px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  position: relative;
  z-index: 1;
  transition: gap 0.2s;
}

.service-card:hover .service-link {
  gap: 10px;
}

.c-blue .service-link {
  color: var(--blue);
}

.c-green .service-link {
  color: var(--green);
}

.c-amber .service-link {
  color: var(--amber);
}

.c-rose .service-link {
  color: var(--rose);
}

.c-violet .service-link {
  color: var(--violet);
}

.c-teal .service-link {
  color: var(--teal);
}

/* ── TECH STACK ── */
#stack {
  background: var(--bg);
}

#stack::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--border-blue),
    transparent
  );
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.stack-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px 16px;
  text-align: center;
  transition: all 0.3s;
  cursor: default;
}

.stack-item:hover {
  border-color: var(--item-color);
  background: var(--card-hover);
  transform: translateY(-4px);
  box-shadow:
    0 10px 28px rgba(10, 50, 120, 0.1),
    0 0 0 1px var(--item-color);
}

.stack-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 22px;
  background: var(--bg);
}

.stack-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sec);
  letter-spacing: 0.02em;
}

/* ── PRODUCTS MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 24, 41, 0.55);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 24px;
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 24px 80px rgba(10, 50, 120, 0.15);
}

.modal-overlay.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.modal-title {
  font-family: "Open Sans", sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-sec);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--blue-lt);
  color: var(--blue);
  border-color: var(--border-blue);
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.25s;
}

.product-card:hover {
  border-color: rgba(10, 108, 255, 0.3);
  background: var(--blue-lt);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(10, 50, 120, 0.1);
}

.product-logo {
  height: 50px;
  width: auto;
}

.product-info h4 {
  font-family: "Open Sans", sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.product-info p {
  font-size: 13px;
  color: var(--text-sec);
  line-height: 1.5;
}

.product-cta {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
}

/* ── ANIMATIONS ── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger > * {
  transition-delay: calc(var(--i) * 80ms);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stack-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .hero-visual {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  nav ul {
    display: none;
  }

  nav ul.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(10, 50, 120, 0.08);
  }

  .mobile-toggle {
    display: flex;
  }

  #hero {
    padding: 100px 20px 60px;
  }

  .container {
    padding: 0 20px;
  }

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

  .stack-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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