/* Arth dark design system — from design_handoff_arth_homepage
   Shared by index, services, contact. Accent is variable-driven. */

:root { --accent: #FF7A59; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; background: #07080A; }
::selection { background: color-mix(in srgb, var(--accent) 28%, transparent); }
input::placeholder, textarea::placeholder { color: #565B62; }

@keyframes arthPulse { 0%,100% { opacity: .35; } 50% { opacity: 1; } }
@keyframes arthBlink { 0%,49% { opacity: 1; } 50%,100% { opacity: 0; } }
@keyframes arthDrift { 0% { background-position: 0 0; } 100% { background-position: 0 64px; } }

.page {
  background: #07080A; color: #EDEFF2;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  min-height: 100vh; overflow: hidden; position: relative;
}

/* background layers */
.bg-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 100%);
}
.bg-glow {
  position: absolute; top: -360px; left: 50%; transform: translateX(-50%);
  width: 1300px; height: 720px; pointer-events: none;
  background: radial-gradient(ellipse at center, var(--accent) 0%, transparent 62%);
  opacity: 0.12; filter: blur(40px);
}
.bg-line {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 1px; height: 520px; pointer-events: none;
  background: linear-gradient(180deg, var(--accent), transparent); opacity: 0.25;
}

/* nav */
.nav {
  position: relative; z-index: 10; max-width: 1240px; margin: 0 auto;
  padding: 24px 40px; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: #EDEFF2; }
.brand-mark { display: block; width: 26px; height: 26px; }
.brand-word { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 20px; letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link {
  color: #A6ABB2; text-decoration: none; font-size: 14.5px; letter-spacing: -0.01em;
  padding: 8px 14px; border-radius: 8px;
}
.nav-link:hover, .nav-link[aria-current="page"] { color: #EDEFF2; }
.nav-link:hover { background: rgba(255,255,255,0.05); }
.nav-cta {
  margin-left: 14px; display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #07080A; text-decoration: none;
  font-weight: 600; font-size: 14px; padding: 10px 20px; border-radius: 9px;
  letter-spacing: -0.01em; box-shadow: 0 0 24px -8px var(--accent);
  transition: transform .15s ease;
}
.nav-cta:hover { transform: translateY(-1px); }

/* hero */
.hero {
  position: relative; z-index: 10; max-width: 1240px; margin: 0 auto;
  padding: 78px 40px 60px; text-align: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 100px; background: color-mix(in srgb, var(--accent) 5%, transparent);
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: 0.06em; color: #C8CCD2;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  animation: arthPulse 2s ease-in-out infinite; display: inline-block;
}
.hero h1 {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600;
  font-size: clamp(40px, 5.5vw, 68px);
  line-height: 1.05; letter-spacing: -0.04em; margin: 30px auto 0; max-width: 1040px; text-wrap: balance;
}
.hero h1 .accent {
  color: var(--accent);
  text-shadow: 0 0 60px color-mix(in srgb, var(--accent) 35%, transparent);
}
.hero-sub {
  font-size: 19.5px; line-height: 1.55; color: #A6ABB2; max-width: 620px;
  margin: 28px auto 0; letter-spacing: -0.01em; text-wrap: pretty;
}
.hero-ctas { display: flex; gap: 14px; justify-content: center; margin-top: 40px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #07080A; text-decoration: none;
  font-weight: 600; font-size: 15.5px; padding: 15px 28px; border-radius: 11px;
  letter-spacing: -0.01em; border: none; cursor: pointer;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  box-shadow: 0 8px 32px -8px color-mix(in srgb, var(--accent) 50%, transparent);
  transition: transform .15s ease;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12);
  color: #EDEFF2; text-decoration: none; font-weight: 500; font-size: 15.5px;
  padding: 15px 28px; border-radius: 11px; letter-spacing: -0.01em;
  transition: border-color .15s ease;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); }

/* terminal */
.terminal {
  max-width: 740px; margin: 70px auto 0; text-align: left;
  border: 1px solid rgba(255,255,255,0.10); border-radius: 16px;
  background: rgba(13,15,18,0.92); overflow: hidden;
  box-shadow: 0 60px 120px -40px rgba(0,0,0,0.8),
              0 0 0 1px color-mix(in srgb, var(--accent) 5%, transparent),
              0 -1px 0 rgba(255,255,255,0.08) inset;
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.07); background: rgba(255,255,255,0.015);
}
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; background: #33383F; }
.terminal-title { margin-left: 10px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: #565B62; }
.terminal-chip {
  margin-left: auto; font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: #565B62;
  border: 1px solid rgba(255,255,255,0.08); padding: 2px 8px; border-radius: 5px;
}
.terminal-body { padding: 24px 26px; font-family: 'IBM Plex Mono', monospace; font-size: 13.5px; line-height: 1.9; }
.t-accent { color: var(--accent); }
.t-dim { color: #7F848D; }
.t-text { color: #EDEFF2; }
.t-link { color: #8FB4FF; }
.cursor {
  display: inline-block; width: 8px; height: 16px; background: var(--accent);
  margin-left: 10px; vertical-align: text-bottom;
  animation: arthBlink 1.1s steps(1) infinite;
}

/* metrics */
.metrics { position: relative; z-index: 10; max-width: 1240px; margin: 88px auto 0; padding: 0 40px; }
.metrics-grid {
  border: 1px solid rgba(255,255,255,0.09); border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden;
}
.metric {
  padding: 38px 30px; border-right: 1px solid rgba(255,255,255,0.06);
  position: relative; transition: background .2s ease;
}
.metric:hover { background: rgba(255,255,255,0.025); }
.metric-tag {
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.12em;
  color: var(--accent); margin-bottom: 14px;
}
.metric-value {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 48px;
  letter-spacing: -0.03em; color: #EDEFF2; line-height: 1;
}
.metric-label { font-size: 14.5px; color: #A6ABB2; margin-top: 10px; letter-spacing: -0.01em; }

/* sections */
.section { position: relative; z-index: 10; max-width: 1240px; margin: 130px auto 0; padding: 0 40px; }
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; margin-bottom: 48px;
}
.eyebrow { font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: 0.16em; color: var(--accent); }
.section-head h2 {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 48px;
  letter-spacing: -0.03em; margin: 18px 0 0; max-width: 580px; line-height: 1.06; text-wrap: balance;
}
.section-head p {
  color: #A6ABB2; font-size: 15.5px; line-height: 1.6; max-width: 340px;
  letter-spacing: -0.01em; text-wrap: pretty; margin: 0;
}

/* two-col product blocks (services) */
.two-col { display: flex; justify-content: space-between; gap: 60px; align-items: flex-start; }
.two-col .col-left { flex: 0 0 auto; max-width: 420px; }
.two-col .col-left h2 {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 40px;
  letter-spacing: -0.03em; margin: 18px 0 0; line-height: 1.08; text-wrap: balance;
}
.two-col .col-right { flex: 1; max-width: 560px; padding-top: 6px; }
.two-col .col-right p {
  color: #A6ABB2; font-size: 15.5px; line-height: 1.65; margin: 0 0 16px;
  letter-spacing: -0.01em; text-wrap: pretty;
}
.mono-link {
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: 0.04em;
  color: var(--accent); text-decoration: none; display: inline-block; margin-top: 14px;
}
.mono-link:hover { text-decoration: underline; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; padding: 32px 30px;
  background: rgba(255,255,255,0.018); min-height: 250px; display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover {
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  transform: translateY(-3px);
}
.card-topline {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 40%, transparent), transparent);
}
.card-head { display: flex; align-items: center; justify-content: space-between; }
.card-icon {
  width: 42px; height: 42px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 11px; display: flex; align-items: center; justify-content: center;
  font-family: 'IBM Plex Mono', monospace; color: var(--accent); font-size: 16px; font-weight: 500;
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}
.card-num { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: #565B62; letter-spacing: 0.1em; }
.card h3 {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 21px;
  letter-spacing: -0.02em; margin: 24px 0 0;
}
.card p { color: #9EA3AA; font-size: 14.5px; line-height: 1.65; margin: 10px 0 0; letter-spacing: -0.01em; text-wrap: pretty; }
.card-link {
  margin-top: auto; padding-top: 20px;
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: 0.04em;
}
.card-link a { color: var(--accent); text-decoration: none; }

/* forms (contact) */
.form-panel {
  position: relative; z-index: 10;
  border: 1px solid rgba(255,255,255,0.09); border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  padding: 44px 40px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.field { display: flex; flex-direction: column; }
.field label {
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: #7F848D; margin-bottom: 10px;
}
.field input, .field textarea {
  width: 100%; background: #07080A; border: 1px solid rgba(255,255,255,0.13);
  color: #EDEFF2; font-size: 15px; padding: 15px 18px; border-radius: 11px;
  font-family: 'IBM Plex Sans', system-ui, sans-serif; outline: none;
}
.field input:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 120px; }
.field-full { margin-bottom: 18px; }

/* CTA panel */
.cta-section { position: relative; z-index: 10; max-width: 1240px; margin: 130px auto 0; padding: 0 40px 120px; }
.cta-panel {
  position: relative; border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
  border-radius: 24px; overflow: hidden;
  background: radial-gradient(ellipse 80% 140% at 50% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%), #0D0F12;
  padding: 76px 40px; text-align: center;
}
.cta-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, #000, transparent 70%);
  animation: arthDrift 6s linear infinite;
}
.cta-inner { position: relative; }
.cta-inner h2 {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 56px;
  letter-spacing: -0.035em; margin: 0; line-height: 1.04; text-wrap: balance;
}
.cta-sub { color: #A6ABB2; font-size: 17px; margin: 22px auto 0; max-width: 480px; line-height: 1.55; letter-spacing: -0.01em; }
.cta-actions { display: flex; gap: 14px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.cta-reassure {
  display: flex; gap: 22px; justify-content: center; margin-top: 24px;
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: #6B7078;
}
.cta-reassure .sep { color: #33383F; }

/* footer */
.footer {
  margin-top: 72px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.07);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.footer-wrap { position: relative; z-index: 10; max-width: 1240px; margin: 0 auto; padding: 0 40px 60px; }
.footer-brand { display: flex; align-items: center; gap: 11px; }
.footer-mark { display: block; width: 20px; height: 20px; }
.footer-word { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 16px; }
.footer-domain { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: #565B62; margin-left: 6px; }
.footer-links { display: flex; gap: 28px; align-items: center; }
.footer-links a { color: #7F848D; text-decoration: none; font-size: 13.5px; }
.footer-links a:hover { color: #EDEFF2; }
.footer-copy { color: #565B62; font-size: 13.5px; }

/* responsive (reference is desktop-only; adaptations per handoff README) */
@media (max-width: 760px) {
  .nav { padding: 20px 24px; }
  .nav-link { display: none; }
  .nav-cta { margin-left: 0; }
  .hero { padding: 56px 24px 48px; }
  .hero-sub { font-size: 17px; }
  .hero-ctas { flex-wrap: wrap; }
  .metrics, .section, .cta-section, .footer-wrap { padding-left: 24px; padding-right: 24px; }
  .metrics { margin-top: 64px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric { border-bottom: 1px solid rgba(255,255,255,0.06); padding: 28px 24px; }
  .section { margin-top: 90px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 18px; margin-bottom: 32px; }
  .section-head h2 { font-size: 34px; }
  .two-col { flex-direction: column; gap: 24px; }
  .two-col .col-left h2 { font-size: 32px; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-section { margin-top: 90px; }
  .cta-panel { padding: 56px 24px; }
  .cta-inner h2 { font-size: 36px; }
}