/* ================================================
   VORTANIS LLC
   ================================================ */

:root {
  /* Dark mode (default) */
  --bg:        #07090f;
  --bg-alt:    #0b0f1c;
  --card:      rgba(255,255,255,.04);
  --border:    rgba(255,255,255,.08);
  --border2:   rgba(255,255,255,.14);

  --text:      #e8eeff;
  --text-2:    #7a8fad;
  --text-3:    #3a4a62;

  --accent:    #4f72f5;
  --accent-l:  #7aa0ff;
  --accent2:   #8b5cf6;
  --grad:      linear-gradient(135deg, #4f72f5, #8b5cf6);

  --accent-bg:     rgba(79,114,245,.1);
  --accent-border: rgba(79,114,245,.22);
  --accent-glow:   rgba(79,114,245,.3);
  --glow-hero:     rgba(79,114,245,.14);
  --nav-blur-bg:   rgba(7,9,15,.92);
  --mob-nav-bg:    rgba(7,9,15,.97);

  --nav-h: 72px;
  --r:     12px;
  --r-sm:  8px;
}

[data-theme="light"] {
  --bg:        #f5f8fc;
  --bg-alt:    #e8eef7;
  --card:      rgba(0,0,0,.032);
  --border:    rgba(0,0,0,.09);
  --border2:   rgba(0,0,0,.17);

  --text:      #0c1525;
  --text-2:    #475870;
  --text-3:    #8a9bba;

  --accent:    #4f72f5;
  --accent-l:  #4f72f5;
  --accent2:   #8b5cf6;
  --grad:      linear-gradient(135deg, #4f72f5, #8b5cf6);

  --accent-bg:     rgba(79,114,245,.08);
  --accent-border: rgba(79,114,245,.25);
  --accent-glow:   rgba(79,114,245,.2);
  --glow-hero:     rgba(79,114,245,.07);
  --nav-blur-bg:   rgba(245,248,252,.94);
  --mob-nav-bg:    rgba(245,248,252,.98);
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); overflow-x: hidden; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
}
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
p  { color: var(--text-2); }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  min-height: 44px;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .18s, box-shadow .18s, background .18s, border-color .18s;
  text-decoration: none;
  touch-action: manipulation;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(79,114,245,.45); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border2);
}
.btn-outline:hover { background: var(--card); border-color: var(--border2); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ---- Nav ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s;
}
.nav.scrolled {
  background: var(--nav-blur-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.03em;
}
.logo-icon {
  width: 32px; height: 32px;
  background: var(--grad);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  color: #fff;
}
.nav-logo-img {
  height: 56px;
  width: auto;
  display: block;
}
.footer-logo-img {
  height: 48px;
}
.hero-logo {
  margin-bottom: 36px;
}
.logo-img {
  height: auto;
  max-height: 180px;
  width: auto;
  max-width: 100%;
  margin: 0 auto;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-a {
  font-size: 14px;
  color: var(--text-2);
  padding: 6px 13px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}
.nav-a:hover, .nav-a.active { color: var(--text); background: var(--card); }

/* Nav right group */
.nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
}
.social-links {
  display: flex;
  align-items: center;
  gap: 1px;
  margin-right: 6px;
  padding-right: 10px;
  border-right: 1px solid var(--border);
}
.social-link {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 7px;
  color: var(--text-2);
  transition: color .2s, background .2s;
}
.social-link:hover { color: var(--accent); background: var(--accent-bg); }

.theme-toggle {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 7px;
  background: none;
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text-2);
  touch-action: manipulation;
  transition: color .2s, background .2s, border-color .2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent-border); background: var(--accent-bg); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer; padding: 10px; margin-left: 2px;
  touch-action: manipulation;
}
.burger span {
  display: block;
  width: 20px; height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .28s, opacity .28s;
  transform-origin: center;
}
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 80px) 0 80px;
  position: relative;
  overflow: hidden;
  clip-path: inset(0);
}
.hero::before {
  content: '';
  position: absolute;
  width: min(700px, 100%); height: 700px;
  top: -220px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(ellipse, var(--glow-hero) 0%, transparent 65%);
  filter: blur(60px);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--accent-l);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.08;
  margin-bottom: 20px;
  overflow-wrap: break-word;
  word-break: break-word;
}
.accent {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-btns { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ---- Sections ---- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-alt + .section-alt,
.section + .section { border-top: 1px solid var(--border); }

.section-head { text-align: center; margin-bottom: 56px; }
.label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  letter-spacing: -.03em;
  margin-bottom: 12px;
}
.section-sub { font-size: 16px; color: var(--text-2); max-width: 480px; margin: 0 auto; line-height: 1.65; }

/* ---- About ---- */
.about-layout {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.about-text {
  max-width: 700px;
}
.about-text p { font-size: 15.5px; color: var(--text-2); line-height: 1.78; margin-bottom: 16px; }
.about-text p:last-child { margin-bottom: 0; }
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.stat-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: var(--r);
  padding: 28px 24px;
  text-align: center;
  transition: border-color .25s, box-shadow .25s;
}
.stat-box:hover {
  border-color: var(--accent-border);
  border-top-color: var(--accent);
  box-shadow: 0 8px 32px rgba(255,255,255,.07);
}
.stat-val {
  display: block;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-lab { font-size: 11.5px; color: var(--text-3); text-transform: uppercase; letter-spacing: .1em; }

/* ---- About desktop ---- */
@media (min-width: 901px) {
  .about-layout { flex-direction: row; gap: 60px; align-items: flex-start; }
  .about-text { flex: 1; max-width: none; }
  .stats { flex: 0 0 230px; grid-template-columns: 1fr; }
}

/* ---- Platforms ---- */
.platforms { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.platform-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 36px 32px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.platform-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(255,255,255,.07);
}
.platform-icon {
  width: 52px; height: 52px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-l);
  margin-bottom: 20px;
}
.platform-icon--warm {
  background: rgba(251,146,60,.1);
  border-color: rgba(251,146,60,.2);
  color: #fb923c;
}
.platform-card h3 { font-size: 18px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 10px; }
.platform-card p { font-size: 14.5px; line-height: 1.7; }

/* ---- Service Cards ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 30px 26px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255,255,255,.07);
}
.card-icon {
  width: 46px; height: 46px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-l);
  margin-bottom: 18px;
}
.card h3 { font-size: 16.5px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 10px; }
.card p { font-size: 14px; line-height: 1.7; }

/* ---- Contact ---- */
.contact-layout { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.info-row { display: flex; gap: 14px; align-items: flex-start; }
.info-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-l);
  margin-top: 2px;
}
.info-label { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); margin-bottom: 4px; }
.info-val { font-size: 14.5px; color: var(--text-2); transition: color .2s; }
a.info-val:hover { color: var(--accent); }

/* ---- Form ---- */
.form { display: flex; flex-direction: column; gap: 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-2); margin-bottom: 7px; }
.form-group input, .form-group textarea {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  resize: vertical;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-3); }
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.form-group textarea { min-height: 110px; }
.form-ok {
  display: none; align-items: center; gap: 9px;
  margin-top: 12px; padding: 11px 14px;
  background: rgba(34,197,94,.07);
  border: 1px solid rgba(34,197,94,.2);
  border-radius: var(--r-sm);
  color: #4ade80; font-size: 13.5px; font-weight: 500;
}
.form-ok.show { display: flex; }

/* ---- Footer ---- */
.footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-copy { font-size: 13px; color: var(--text-2); }

/* ---- Mobile menu animation ---- */
@keyframes navSlideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Focus ---- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr 1fr; gap: 14px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .wrap { padding: 0 20px; }
  .nav-logo-img { height: 44px; }
  .social-links { display: none; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--mob-nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 12px 18px 18px;
    border-bottom: 1px solid var(--border);
    gap: 2px;
  }
  .nav-links.open {
    display: flex;
    animation: navSlideDown .22s ease forwards;
  }
  .nav-a { padding: 10px 13px; font-size: 15px; }
  .burger { display: flex; }

  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .hero { padding: calc(var(--nav-h) + 44px) 0 56px; }

  .about-layout { flex-direction: column; gap: 32px; }
  .about-text { flex: none; max-width: 100%; }
  .stats { grid-template-columns: repeat(3, 1fr); flex: none; width: auto; }

  .platforms { grid-template-columns: 1fr; gap: 14px; }
  .platform-card { padding: 24px 20px; }
  .cards { grid-template-columns: 1fr; gap: 12px; }
  .card { padding: 24px 20px; }

  .contact-layout { grid-template-columns: 1fr; gap: 36px; }
  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: center; text-align: center; gap: 10px; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 20px; }
  .hero { padding: calc(var(--nav-h) + 24px) 0 44px; min-height: auto; }
  .hero h1 { font-size: clamp(22px, 8vw, 36px); }
  .logo-img { max-height: 120px; }
  .hero-logo { margin-bottom: 24px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
  .stats { grid-template-columns: 1fr; }
  .stat-box { padding: 20px 16px; }
}