/* ===== VerkCore Design System ===== */
:root {
  --bg-deep: #0a0f1c;
  --bg-surface: #12182b;
  --blue: #2563eb;
  --purple: #7c3aed;
  --cyan: #00d1ff;
  --text: #e6ecf3;
  --text-muted: rgba(230, 236, 243, 0.72);
  --glass: rgba(18, 24, 43, 0.72);
  --border: rgba(0, 209, 255, 0.18);
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.25);
  --font: 'Sora', system-ui, sans-serif;
  --header-h: 72px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--blue);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 9999;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.75rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--cyan), var(--blue), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section {
  padding: clamp(4rem, 10vw, 7rem) 0;
  position: relative;
}

.section--alt {
  background: linear-gradient(180deg, transparent, rgba(18, 24, 43, 0.5), transparent);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
}

.section-desc {
  color: var(--text-muted);
  margin: 0;
}

/* Navbar */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 0;
  transition: background var(--transition);
}

.site-header.is-scrolled {
  background: rgba(10, 15, 28, 0.85);
  backdrop-filter: blur(12px);
}

.navbar {
  width: min(1120px, 92vw);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
}

.brand__accent {
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow--brand {
  max-width: 36ch;
  line-height: 1.5;
  color: var(--text-muted);
}

.brand-pills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  padding: 0;
}

.brand-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 209, 255, 0.12);
  background: rgba(18, 24, 43, 0.5);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  color: var(--text-muted);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.brand-pill:hover {
  border-color: rgba(0, 209, 255, 0.35);
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.2);
}

.brand-pill__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(37, 99, 235, 0.35));
  display: grid;
  place-items: center;
  font-size: 1rem;
}

.brand-pill__icon[data-icon='code']::after {
  content: '{ }';
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.85rem;
}

.brand-pill__icon[data-icon='chip']::after {
  content: '▣';
  color: var(--cyan);
}

.brand-pill__icon[data-icon='cloud']::after {
  content: '☁';
}

.brand-pill__icon[data-icon='shield']::after {
  content: '✓';
  color: var(--cyan);
  font-weight: 700;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
}

.nav-link.is-active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  border-radius: 2px;
}

.nav-link--cta {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff !important;
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.45);
}

.nav-link--cta::after {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff;
  box-shadow: 0 0 32px rgba(37, 99, 235, 0.5), 0 0 48px rgba(124, 58, 237, 0.25);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 209, 255, 0.2);
}

.btn--lg {
  padding: 1rem 2rem;
}

.btn--full {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.85;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.hero__glow--1 {
  width: 480px;
  height: 480px;
  background: rgba(124, 58, 237, 0.35);
  top: 10%;
  right: -10%;
}

.hero__glow--2 {
  width: 400px;
  height: 400px;
  background: rgba(0, 209, 255, 0.2);
  bottom: 20%;
  left: -15%;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero__title {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 1.25rem;
  text-shadow: 0 0 60px rgba(0, 209, 255, 0.15);
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 0 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero__stats li {
  display: flex;
  flex-direction: column;
}

.hero__stats strong {
  font-size: 1.5rem;
  color: var(--cyan);
}

.hero__stats span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Service cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  padding: 2rem 1.75rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.5), rgba(0, 209, 255, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.service-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(37, 99, 235, 0.3));
  display: grid;
  place-items: center;
  font-size: 1.25rem;
}

.service-card__icon[data-icon='code']::after {
  content: '{ }';
  color: var(--cyan);
  font-weight: 600;
}

.service-card__icon[data-icon='chip']::after {
  content: '▣';
  color: var(--cyan);
  font-weight: 700;
}

.service-card__icon[data-icon='cloud']::after {
  content: '☁';
}

.service-card__icon[data-icon='shield']::after {
  content: '⛨';
  color: var(--cyan);
}

.service-card__icon[data-icon='chart']::after {
  content: '▤';
  color: var(--cyan);
}

.service-card__icon[data-icon='link']::after {
  content: '∞';
  color: var(--cyan);
}

.service-card__title {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.service-card__desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.service-card__link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cyan);
}

/* Solutions */
.solutions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.check-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--text-muted);
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}

.solutions__visual {
  min-height: 320px;
  display: grid;
  place-items: center;
}

.orbit {
  width: 220px;
  height: 220px;
  border: 1px dashed rgba(0, 209, 255, 0.3);
  border-radius: 50%;
  position: relative;
  animation: spin 20s linear infinite;
}

.orbit__core {
  position: absolute;
  inset: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--blue));
  display: grid;
  place-items: center;
  font-weight: 700;
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.6);
  animation: spin 20s linear infinite reverse;
}

.orbit__dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
}

.orbit__dot--1 {
  top: -6px;
  left: 50%;
}

.orbit__dot--2 {
  bottom: 20%;
  right: -6px;
}

.orbit__dot--3 {
  bottom: 20%;
  left: -6px;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
}

.about__visual {
  padding: 2.5rem;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.about__badge {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.about__quote {
  font-style: italic;
  color: var(--text-muted);
  border-left: 3px solid var(--cyan);
  padding-left: 1rem;
  margin: 0;
}

.about__metrics {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.about__metrics strong {
  display: block;
  font-size: 1.5rem;
  color: var(--cyan);
}

.about__metrics span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* CTA */
.section--cta {
  padding-bottom: 5rem;
}

.cta-box {
  text-align: center;
  padding: 3rem 2rem;
  box-shadow: var(--shadow-glow);
}

/* Contact page */
.page-contact {
  background: var(--bg-deep);
}

.contact-page {
  position: relative;
  padding: calc(var(--header-h) + 3rem) 0 5rem;
  min-height: 100vh;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%, rgba(124, 58, 237, 0.2), transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(0, 209, 255, 0.12), transparent);
  pointer-events: none;
}

.contact-wrap {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.contact-header {
  margin-bottom: 2rem;
}

.contact-form {
  padding: 2rem;
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(10, 15, 28, 0.6);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 209, 255, 0.15);
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
  border-color: rgba(239, 68, 68, 0.7);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.field-error {
  display: block;
  font-size: 0.8rem;
  color: #f87171;
  margin-top: 0.35rem;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Alerts */
.alert {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  animation: fadeUp 0.5s ease;
}

.alert--success {
  background: rgba(0, 209, 255, 0.1);
  border: 1px solid rgba(0, 209, 255, 0.35);
}

.alert--error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.alert__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--cyan);
  color: var(--bg-deep);
  display: grid;
  place-items: center;
  font-weight: 700;
  flex-shrink: 0;
}

.alert ul {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
  list-style: disc;
}

/* Footer */
.site-footer {
  position: relative;
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--bg-surface);
}

.footer-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 20px var(--cyan);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin: 0 0 1rem;
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-email {
  color: var(--cyan);
  font-weight: 500;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.social-icons {
  display: flex;
  gap: 0.75rem;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.social-icon svg {
  width: 18px;
  height: 18px;
}

.social-icon:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 209, 255, 0.25);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.service-card.reveal {
  transition-delay: var(--delay, 0ms);
}

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.orbit__core {
  animation: spin 20s linear infinite reverse;
}

/* Responsive */
@media (max-width: 900px) {
  .solutions,
  .about {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-h);
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    padding: 1.5rem;
    background: var(--glass);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}