/* ============================================================
   QAI · QUAXIS · Qbit — shared styles
   Black-first, color-coded per product.
   ============================================================ */

:root {
  --bg: #050505;
  --bg-1: #0b0b0c;
  --bg-2: #111113;
  --bg-3: #18181c;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);
  --fg: #f4f4f5;
  --fg-2: #c8c8cc;
  --fg-3: #8a8a92;
  --fg-4: #56565c;

  /* Product accents */
  --qai: #FFC900;            /* yellow sun */
  --qai-soft: #FFE066;
  --qai-glow: rgba(255, 201, 0, 0.35);

  --quaxis: #E5142B;          /* red heartbeat */
  --quaxis-soft: #FF5A6A;
  --quaxis-glow: rgba(229, 20, 43, 0.35);

  --qbit: #7B2CFF;            /* violet node */
  --qbit-soft: #B68BFF;
  --qbit-glow: rgba(123, 44, 255, 0.35);

  /* Active accent — overridden per page */
  --accent: var(--fg);
  --accent-soft: var(--fg-2);
  --accent-glow: rgba(255,255,255,0.2);

  --font-display: "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body:    "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --pad-x: clamp(16px, 4vw, 64px);
  --max:   1320px;
  --nav-h: 56px;
}

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  overflow-x: hidden;
  background-image:
    radial-gradient(1200px 600px at 80% -10%, color-mix(in oklab, var(--accent) 12%, transparent) 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 30%, color-mix(in oklab, var(--accent) 6%, transparent) 0%, transparent 60%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* ---------- Language toggle ---------- */
html[data-lang="tr"] .en,
html[data-lang="en"] .tr { display: none !important; }

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5,5,5,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px max(var(--pad-x), env(safe-area-inset-right, 0px)) 14px max(var(--pad-x), env(safe-area-inset-left, 0px));
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2);
  min-width: 0;
  flex: 1;
}
.brand > span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}
.nav-links {
  display: flex;
  gap: 6px;
  margin-left: auto;
  align-items: center;
  flex-wrap: wrap;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-left: auto;
  flex-shrink: 0;
  transition: border-color .2s ease, background .2s ease;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
}
.nav.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}
.nav.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fg-3);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color .2s ease, background .2s ease;
}
.nav-links a:hover { color: var(--fg); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--fg); background: rgba(255,255,255,0.06); }

.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px;
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}
.lang button {
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--fg-3);
}
.lang button.active {
  background: var(--fg);
  color: #000;
}

/* ---------- Shared section primitives ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 12vh, 160px) var(--pad-x);
}
.section.tight { padding-top: clamp(40px, 6vh, 80px); padding-bottom: clamp(40px, 6vh, 80px); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: pretty;
}
.h-display {
  font-size: clamp(48px, 8vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 400;
}
.h-display em {
  font-style: normal;
  color: var(--accent);
}
.h-section {
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.h-card {
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.15;
}
.lead {
  font-size: clamp(17px, 1.3vw, 20px);
  line-height: 1.55;
  color: var(--fg-2);
  max-width: 60ch;
}
.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg);
  transition: all .2s ease;
}
.btn:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--accent);
  color: var(--accent);
}
.btn.primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.btn.primary:hover {
  filter: brightness(1.05);
  color: #000;
}
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- FOOTER ---------- */
.footer {
  border-top: 1px solid var(--line);
  margin-top: 80px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 60px var(--pad-x) 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-4);
  margin: 0 0 16px;
  font-weight: 500;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer a { color: var(--fg-2); font-size: 14px; }
.footer a:hover { color: var(--fg); }
.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px var(--pad-x) 40px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fg-4);
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 12px 0 4px;
    border-top: 1px solid var(--line);
    order: 3;
  }
  .nav.nav-open .nav-links { display: flex; }
  .nav-links a {
    padding: 12px 14px;
    font-size: 14px;
    border-radius: 10px;
  }
  .nav-links .lang {
    margin: 8px 0 0;
    align-self: flex-start;
  }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section { padding-top: clamp(56px, 10vh, 100px); padding-bottom: clamp(56px, 10vh, 100px); }
  .h-display { font-size: clamp(40px, 10vw, 72px); }
  .lead { max-width: none; }
}

@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer { margin-top: 48px; }
  .footer-inner { padding-top: 40px; }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    font-size: 10px;
    padding-bottom: max(32px, env(safe-area-inset-bottom, 0px));
  }
  .btn {
    padding: 12px 18px;
    font-size: 11px;
    letter-spacing: 0.12em;
  }
  .wa-modal-overlay {
    padding: 12px;
    align-items: flex-end;
  }
  .wa-modal {
    width: 100%;
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }
  .wa-modal-overlay.is-open .wa-modal {
    transform: translateY(0) scale(1);
  }
  .wa-modal-actions { flex-direction: column; }
  .wa-modal-actions .btn { width: 100%; }
  .site-phone { flex-direction: column; align-items: flex-start; gap: 8px; }
}

body.nav-menu-open { overflow: hidden; }

/* ---------- Per-page accent classes ---------- */
.theme-qai    { --accent: var(--qai);    --accent-soft: var(--qai-soft);    --accent-glow: var(--qai-glow); }
.theme-quaxis { --accent: var(--quaxis); --accent-soft: var(--quaxis-soft); --accent-glow: var(--quaxis-glow); }
.theme-qbit   { --accent: var(--qbit);   --accent-soft: var(--qbit-soft);   --accent-glow: var(--qbit-glow); }

/* ---------- WhatsApp contact modal ---------- */
.wa-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.wa-modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.wa-modal {
  width: min(480px, 100%);
  background: var(--bg-1);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.8);
  transform: translateY(12px) scale(0.98);
  transition: transform .25s ease;
}
.wa-modal-overlay.is-open .wa-modal {
  transform: translateY(0) scale(1);
}
.wa-modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 24px 0;
}
.wa-modal-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 500;
}
.wa-modal-close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  line-height: 1;
  color: var(--fg-3);
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.wa-modal-close:hover {
  border-color: var(--line-strong);
  color: var(--fg);
  background: rgba(255, 255, 255, 0.04);
}
.wa-modal-body {
  padding: 20px 24px 24px;
  display: grid;
  gap: 16px;
}
.wa-modal-phone {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.wa-modal-phone .contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.wa-modal-phone .contact-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--fg);
}
.wa-modal-phone-info {
  min-width: 0;
}
.wa-modal-phone .wa-num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--fg);
  display: inline-block;
  margin-top: 2px;
}
.wa-modal-phone .wa-num:hover {
  color: var(--accent);
}
.wa-modal-phone .wa-channel {
  margin-top: 6px;
  font-size: 12px;
  color: var(--fg-4);
  line-height: 1.4;
}
.wa-modal-phone .wa-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-4);
  margin-bottom: 2px;
}
.wa-modal-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-4);
  margin-bottom: 8px;
}
.wa-modal-field textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  line-height: 1.5;
  outline: none;
  transition: border-color .2s ease;
  box-sizing: border-box;
}
.wa-modal-field textarea:focus {
  border-color: #25D366;
}
.wa-modal-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.wa-modal-actions .btn.wa-send {
  background: #25D366;
  color: #fff;
  border-color: #25D366;
}
.wa-modal-actions .btn.wa-send:hover {
  filter: brightness(1.08);
  color: #fff;
}

/* ---------- Site-wide contact phone (footer) ---------- */
.site-phone {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}
.site-phone-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-4);
}
.site-phone-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--fg);
}
.site-phone-num:hover {
  color: var(--accent);
}
.site-phone-wa {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #25D366;
  padding: 4px 10px;
  border: 1px solid rgba(37, 211, 102, 0.35);
  border-radius: 999px;
}
.site-phone-wa:hover {
  background: rgba(37, 211, 102, 0.1);
  color: #25D366;
}

/* ---------- JS animation motion tiers ---------- */
html.motion-reduced .star,
html.motion-reduced .pulse-qai,
html.motion-reduced .pulse-quaxis,
html.motion-reduced .pulse-qbit,
html.motion-reduced .conn,
html.motion-reduced .baton-pivot,
html.motion-reduced .strand.bg,
html.motion-reduced .typing-dots span,
html.motion-reduced .brain-halo {
  animation: none !important;
}

html.motion-mobile .star {
  animation: none !important;
  opacity: 0 !important;
}

html.motion-mobile .baton-pivot {
  animation-duration: 5.5s;
}

html.motion-mobile .strand.bg {
  animation-duration: 12s;
}

html.motion-mobile .pulse-qai,
html.motion-mobile .pulse-quaxis,
html.motion-mobile .pulse-qbit {
  animation-duration: 4.5s;
}

html.motion-mobile .cnc-head .pulse,
html.motion-reduced .cnc-head .pulse {
  animation: none !important;
}