/* ─── Variables ─── */
:root {
  --bg: #070b14;
  --bg-elevated: #0d1320;
  --bg-card: #121a2a;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f4f7fb;
  --text-muted: #93a0b8;
  --accent: #5eb0ff;
  --accent-dim: rgba(94, 176, 255, 0.14);
  --accent-glow: rgba(94, 176, 255, 0.35);
  --mint: #6ee7b7;
  --violet: #8bb4ff;
  --violet-dim: rgba(139, 180, 255, 0.12);
  --gradient: linear-gradient(135deg, #5eb0ff 0%, #93c5fd 45%, #e8f1ff 100%);
  --font-sans: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 72px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }

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

.section {
  padding: 100px 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
}

/* ─── Grain Overlay ─── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ─── Header ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background var(--transition), backdrop-filter var(--transition);
}

.header.scrolled {
  background: rgba(7, 11, 20, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  line-height: 1;
  text-decoration: none;
}

.logo-word {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #f4f7fb;
  text-transform: lowercase;
}

/* Dotless ı + separate blue square (clean gap, no overlap) */
.logo-i {
  position: relative;
  display: inline-block;
  color: #f4f7fb;
}

.logo-idot {
  position: absolute;
  left: 50%;
  top: 0.05em;
  width: 0.24em;
  height: 0.24em;
  transform: translateX(-50%);
  background: #3b82f6;
  border-radius: 1.5px;
  pointer-events: none;
  /* sits clearly above the ı stem — no overlap */
}

.logo-sep {
  width: 1.5px;
  height: 0.95em;
  background: rgba(244, 247, 251, 0.4);
  border-radius: 1px;
  flex-shrink: 0;
}

.logo-ai {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #3b82f6;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

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

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

.nav-cta {
  padding: 10px 20px !important;
  background: var(--accent-dim);
  color: var(--accent) !important;
  border-radius: 100px;
  border: 1px solid rgba(94, 176, 255, 0.3);
  transition: background var(--transition), transform var(--transition) !important;
}

.nav-cta:hover {
  background: rgba(94, 176, 255, 0.25);
  transform: translateY(-1px);
}

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: var(--gradient);
  color: #061018;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

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

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: rgba(255, 255, 255, 0.15);
}


/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.hero-glow--1 {
  width: 600px;
  height: 600px;
  background: #5eb0ff;
  opacity: 0.12;
  top: -200px;
  right: -100px;
}

.hero-glow--2 {
  width: 500px;
  height: 500px;
  background: #e8f1ff;
  opacity: 0.05;
  bottom: -150px;
  left: -150px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 60px;
  padding-bottom: 40px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 6px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 6.5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin-bottom: 24px;
}

.hero-title em {
  font-style: italic;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat-value {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ─── AI Network Diagram ─── */
.hero-visual {
  position: relative;
  z-index: 1;
  padding-bottom: 72px;
  display: flex;
  justify-content: center;
}

.ai-diagram {
  position: relative;
  width: min(680px, 96vw);
  aspect-ratio: 640 / 440;
}

.ai-diagram__glow {
  position: absolute;
  inset: 12% 16%;
  background: radial-gradient(ellipse at center, rgba(94, 176, 255, 0.18), transparent 70%);
  filter: blur(28px);
  pointer-events: none;
}

.ai-diagram__svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.ai-ring--1 {
  animation: ring-pulse 4s ease-in-out infinite;
}

.ai-ring--2 {
  transform-origin: 320px 220px;
  animation: ring-spin 28s linear infinite;
}

.ai-ring--3 {
  animation: ring-pulse 5.5s ease-in-out infinite 0.8s;
}

.ai-core-spin {
  transform-box: fill-box;
  transform-origin: center;
  animation: ring-spin 14s linear infinite;
}

.ai-signal {
  stroke-dasharray: 28 180;
  animation: signal-flow 2.6s linear infinite;
}

.ai-signal--d2 { animation-delay: 0.35s; }
.ai-signal--d3 { animation-delay: 0.7s; }
.ai-signal--d4 { animation-delay: 1.05s; }
.ai-signal--d5 { animation-delay: 1.4s; }
.ai-signal--d6 { animation-delay: 1.75s; }

.ai-nodes g {
  animation: node-breathe 4.5s ease-in-out infinite;
}

.ai-nodes g:nth-child(odd) { animation-delay: 0.6s; }
.ai-nodes g:nth-child(even) { animation-delay: 1.4s; }

.ai-core {
  animation: core-glow 3.2s ease-in-out infinite;
}

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

@keyframes ring-pulse {
  0%, 100% { stroke-opacity: 0.12; }
  50% { stroke-opacity: 0.32; }
}

@keyframes signal-flow {
  to { stroke-dashoffset: -208; }
}

@keyframes node-breathe {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}

@keyframes core-glow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(94, 176, 255, 0.35)); }
  50% { filter: drop-shadow(0 0 22px rgba(94, 176, 255, 0.65)); }
}

@media (max-width: 600px) {
  .ai-diagram {
    width: min(100%, 96vw);
  }
}

/* ─── About ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-content .section-text + .section-text {
  margin-top: 16px;
}

.about-content strong { color: var(--text); }

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition);
}

.info-card:hover {
  border-color: rgba(94, 176, 255, 0.3);
  transform: translateX(4px);
}

.info-card-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--accent-dim);
  border-radius: 10px;
  color: var(--accent);
  margin-bottom: 16px;
}

.info-card-icon svg { width: 20px; height: 20px; }

.info-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.info-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─── Vision ─── */
.vision {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.vision-header {
  text-align: center;
  margin-bottom: 64px;
}

.vision-header .section-text {
  margin-inline: auto;
}

.vision-lead {
  font-size: 1.15rem !important;
  max-width: 640px !important;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.vision-item {
  padding: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.vision-item:hover {
  border-color: rgba(94, 176, 255, 0.3);
}

.vision-num {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--violet);
  margin-bottom: 16px;
}

.vision-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.vision-item p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ─── Platforms ─── */
.platforms-header {
  text-align: center;
  margin-bottom: 56px;
}

.platforms-header .section-text { margin-inline: auto; }

.platform-cards {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 20px;
}

.platform-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition);
}

.platform-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.platform-card--featured {
  background: linear-gradient(160deg, rgba(94, 176, 255, 0.08) 0%, var(--bg-card) 50%);
  border-color: rgba(94, 176, 255, 0.25);
}

.platform-badge {
  display: inline-block;
  width: fit-content;
  padding: 4px 12px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 16px;
}

.platform-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.platform-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.platform-features {
  list-style: none;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.platform-features li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}

.platform-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.platform-status {
  display: inline-block;
  margin-top: 20px;
  padding: 6px 14px;
  background: var(--violet-dim);
  color: var(--violet);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
  width: fit-content;
}

/* ─── Product Teaser ─── */
.teaser-banner {
  text-align: center;
  margin-bottom: 40px;
  padding: 40px 28px;
  background: linear-gradient(160deg, rgba(94, 176, 255, 0.1) 0%, var(--bg-card) 60%);
  border: 1px dashed rgba(94, 176, 255, 0.35);
  border-radius: var(--radius-lg);
}

.teaser-locked {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.teaser-lock {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 50%;
}

.teaser-lock svg { width: 18px; height: 18px; }

.teaser-name {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.35em;
  color: var(--text);
  filter: blur(3px);
  user-select: none;
  opacity: 0.55;
}

.teaser-hint {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.teaser-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-style: italic;
  color: var(--text);
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.4;
}

/* ─── Launch Window ─── */
.launch-inner {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.launch-inner .section-text {
  margin-inline: auto;
  margin-bottom: 32px;
}

.launch-lead {
  font-size: 1.1rem !important;
  max-width: 640px !important;
}

/* ─── Contact / CTA ─── */
.cta-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
  justify-items: center;
  text-align: center;
  align-items: center;
  padding: 64px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: var(--accent);
  opacity: 0.06;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.contact-direct {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition);
}

.contact-pill svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-pill:hover {
  border-color: rgba(94, 176, 255, 0.4);
  color: var(--text);
}

/* ─── Footer ─── */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.footer-legal {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--accent);
}

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

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

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

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

  .footer-inner {
    flex-direction: column;
  }

  .cta-inner {
    padding: 40px 28px;
  }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(7, 11, 20, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 14px 16px;
    border-radius: var(--radius);
  }

  .nav-links a:hover { background: var(--bg-elevated); }

  .nav-cta { text-align: center; margin-top: 8px; }

  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }

  .footer-links { gap: 32px; }
}