/* =========================================================
   MaxAI — Landing page
   Original design inspired by MaxAI branding (navy + teal signal node)
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  /* Navy scale */
  --navy-900: #06152B;
  --navy-800: #0B2A4A;
  --navy-700: #123A63;
  --navy-600: #1E6FD9;
  --navy-500: #3FA8E0;
  --navy-400: #7AB6E5;
  --navy-300: #B8D4EE;
  --navy-200: #DDE8F5;
  --navy-100: #EDF3FB;

  /* Neutrals */
  --ink: #0A1729;
  --ink-2: #334155;
  --ink-3: #64748B;
  --bg: #FFFFFF;
  --bg-2: #F6F9FC;
  --bg-3: #EEF3F9;
  --line: #E2EAF3;
  --line-strong: #CBD7E6;

  /* Accent — teal */
  --accent: #11B5A4;
  --accent-soft: #CFF0EC;
  --accent-deep: #0A8577;

  /* Fonts */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  /* Density */
  --sec-pad: clamp(80px, 10vw, 140px);
  --container: 1240px;
  --radius: 14px;
  --radius-lg: 22px;
}

/* ---------- Reset & base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }

/* ---------- Mono tag ---------- */
.mono-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.mono-tag::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--line-strong);
}
.mono-tag.light { color: rgba(255,255,255,0.6); }
.mono-tag.light::before { background: rgba(255,255,255,0.3); }
.mono-tag-sm {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.accent-text { color: var(--accent); font-style: normal; }

/* ---------- Brand wordmark ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
}
.brand-mark { flex: none; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  line-height: 1;
}
.brand-word-ai { color: var(--navy-500); font-weight: 400; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav-links {
  display: flex; gap: 34px;
  font-size: 14.5px;
  color: var(--ink-2);
  font-weight: 500;
}
.nav-links a { transition: color .15s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  display: flex; align-items: center; gap: 14px;
}
.nav-cta .nav-mail {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-2);
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-cta .nav-mail { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14.5px;
  transition: transform .15s, background .15s, color .15s, box-shadow .15s, border-color .15s;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn.large { padding: 16px 26px; font-size: 15.5px; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 8px 24px -8px color-mix(in srgb, var(--accent) 60%, transparent);
}
.btn-primary:hover { transform: translateY(-1px); background: var(--accent-deep); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--bg-2); }
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}
.btn-ghost-light:hover { background: rgba(255,255,255,0.08); }

/* ---------- Typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.02;
  font-size: clamp(44px, 6vw, 78px);
  color: var(--ink);
  text-wrap: balance;
}

.h2 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.08;
  font-size: clamp(32px, 4.2vw, 54px);
  color: var(--ink);
  text-wrap: balance;
  max-width: 20ch;
}
.h2.light { color: #fff; }

.lede {
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 52ch;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg-2);
}
.eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
  50%      { box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 10%, transparent); }
}

/* ---------- Sections ---------- */
.section {
  padding: var(--sec-pad) 32px;
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}
.section-head { margin-bottom: 60px; max-width: 720px; }
.section-head .mono-tag { margin-bottom: 20px; }
.section-head .h2 { margin-bottom: 18px; }
.section-lede { color: var(--ink-2); font-size: 17px; max-width: 52ch; }

/* ---------- Hero A ---------- */
.hero {
  padding-top: clamp(60px, 6vw, 100px);
  padding-bottom: var(--sec-pad);
}
.hero-a {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 32px; padding-right: 32px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 70px;
  align-items: center;
}
.hero-left .eyebrow { margin-bottom: 36px; }
.hero-left .display { margin-bottom: 28px; }
.hero-left .lede { margin-bottom: 40px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-meta {
  display: flex; align-items: center; gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.hero-meta > div:not(.divider) { display: flex; flex-direction: column; gap: 2px; }
.hero-meta strong {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-meta span {
  font-size: 13px;
  color: var(--ink-3);
}
.hero-meta .divider {
  width: 1px; height: 32px;
  background: var(--line);
}

.hero-right {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 480px;
}
.network-frame {
  position: relative;
  width: 560px; max-width: 100%;
  aspect-ratio: 560 / 440;
  background: linear-gradient(145deg, var(--bg-2), var(--bg));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(15, 42, 74, 0.15);
}
.network-label {
  position: absolute;
  top: 18px; left: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 8px;
  z-index: 2;
}
.network-frame canvas { width: 100% !important; height: 100% !important; display: block; }
.network-corner {
  position: absolute;
  width: 14px; height: 14px;
  border-color: var(--navy-500);
  opacity: 0.6;
}
.network-corner.tl { top: 10px; left: 10px;  border-top: 1.5px solid;  border-left: 1.5px solid; }
.network-corner.tr { top: 10px; right: 10px; border-top: 1.5px solid;  border-right: 1.5px solid; }
.network-corner.bl { bottom: 10px; left: 10px;  border-bottom: 1.5px solid; border-left: 1.5px solid; }
.network-corner.br { bottom: 10px; right: 10px; border-bottom: 1.5px solid; border-right: 1.5px solid; }

.dot.live {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2.2s infinite;
}
.dot.live.sm { width: 5px; height: 5px; }

.hero-chip {
  position: absolute;
  padding: 10px 18px;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  box-shadow: 0 10px 30px -12px rgba(15, 42, 74, 0.2);
  animation: float 6s ease-in-out infinite;
}
.hero-chip.chip-1 { top: 8%;    right: -6%;  animation-delay: 0s; }
.hero-chip.chip-2 { bottom: 14%; left: -10%; animation-delay: -2s; }
.hero-chip.chip-3 { bottom: -4%; right: 6%;
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-soft);
  animation-delay: -4s;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  background: var(--bg);
  padding: 36px 30px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  transition: background .2s;
  position: relative;
}
.service-card:hover { background: var(--bg-2); }
.service-card.featured {
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
}
.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 28px;
}
.service-card:hover .service-icon { background: var(--bg); }
.service-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.2;
}
.service-desc {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-2);
  flex: 1;
}
.service-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

/* ---------- Process (dark strip) ---------- */
.section-process {
  background: var(--navy-900);
  padding: var(--sec-pad) 32px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section-process::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 85% 10%, color-mix(in srgb, var(--accent) 25%, transparent), transparent 50%),
    radial-gradient(ellipse at 10% 80%, color-mix(in srgb, var(--navy-600) 30%, transparent), transparent 50%);
  pointer-events: none;
}
.section-process > * { position: relative; z-index: 1; }
.section-process .section-head {
  max-width: var(--container);
  margin: 0 auto 60px;
}
.section-process .h2 { max-width: 24ch; }
.process-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  display: flex; flex-direction: column;
  padding-top: 28px;
  position: relative;
}
.process-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.process-line {
  width: 100%; height: 1px;
  background: rgba(255,255,255,0.12);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.process-line-inner {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: sweep 4s infinite linear;
}
@keyframes sweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.process-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.process-desc {
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
  flex: 1;
}
.process-out {
  padding: 14px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  font-size: 13.5px;
  color: rgba(255,255,255,0.9);
}
.process-out .mono-tag-sm {
  color: var(--accent);
  display: block;
  margin-bottom: 4px;
}

/* ---------- Cases ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.case-card {
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}
.case-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 3px;
  background: var(--accent);
}
.case-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 20px 40px -20px rgba(15,42,74,0.15);
}
.case-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.case-metric {
  display: flex; align-items: baseline; gap: 14px;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
}
.case-metric-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
}
.case-metric-label {
  font-size: 13px;
  color: var(--ink-2);
  max-width: 16ch;
  line-height: 1.35;
}
.case-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  line-height: 1.35;
  flex: 1;
}
.case-foot {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 8px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.about-lede {
  font-size: clamp(18px, 1.5vw, 22px);
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 50px;
  max-width: 56ch;
}
.about-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.principle {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.principle-num {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 16px;
}
.principle h4 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 8px;
}
.principle p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
}

/* ---------- CTA ---------- */
.section-cta {
  background: var(--navy-900);
  padding: calc(var(--sec-pad) * 0.9) 32px;
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.section-cta::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 120%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 55%);
  pointer-events: none;
}
.cta-inner {
  position: relative; z-index: 1;
  max-width: 860px;
  margin: 0 auto;
}
.cta-inner .mono-tag { justify-content: center; margin-bottom: 28px; }
.cta-inner .mono-tag::before { display: none; }
.cta-title {
  max-width: none;
  margin: 0 auto 24px;
}
.cta-lede {
  font-size: 19px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 48px;
  max-width: 52ch;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex; gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.cta-footline {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  display: flex; gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-footline .sep { color: rgba(255,255,255,0.25); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 60px 32px 24px;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.footer-brand p {
  margin-top: 16px;
  color: var(--ink-3);
  font-size: 14px;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.footer-cols h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
  font-weight: 500;
}
.footer-cols a {
  display: block;
  font-size: 14px;
  color: var(--ink-2);
  padding: 4px 0;
  transition: color .15s;
}
.footer-cols a:hover { color: var(--ink); }
.footer-bottom {
  max-width: var(--container);
  margin: 20px auto 0;
  display: flex; justify-content: space-between;
  font-size: 12px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-a, .about-grid, .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .services-grid, .cases-grid, .process-grid, .about-principles, .footer-cols { grid-template-columns: repeat(2, 1fr) !important; }
  .hero-right { min-height: 400px; }
  .network-frame { width: 100%; }
  .hero-chip { display: none; }
}
@media (max-width: 620px) {
  .services-grid, .cases-grid, .process-grid, .about-principles, .footer-cols { grid-template-columns: 1fr !important; }
  .nav-inner { padding: 14px 20px; }
  .section, .section-process, .section-cta { padding-left: 20px; padding-right: 20px; }
  .hero-a { padding-left: 20px; padding-right: 20px; }
  .site-footer { padding-left: 20px; padding-right: 20px; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}