:root {
  --bg: #0c1210;
  --bg-elevated: #141c18;
  --ink: #f3f0e8;
  --muted: rgba(243, 240, 232, 0.68);
  --line: rgba(243, 240, 232, 0.12);
  --accent: #e8a317;
  --accent-soft: rgba(232, 163, 23, 0.16);
  --teal: #2fbfa0;
  --font-display: "Syne", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
  --pad: clamp(1.25rem, 4vw, 3.5rem);
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(47, 191, 160, 0.12), transparent 55%),
    radial-gradient(900px 500px at 0% 20%, rgba(232, 163, 23, 0.08), transparent 50%),
    var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding: 0.85rem var(--pad);
  transition: background 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(12, 18, 16, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  z-index: 2;
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 0.2rem;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.15rem;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 1.5rem;
  font-size: 0.92rem;
  color: var(--muted);
}

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

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.55rem;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 18, 16, 0.35) 0%, rgba(12, 18, 16, 0.55) 40%, rgba(12, 18, 16, 0.92) 100%),
    linear-gradient(90deg, rgba(12, 18, 16, 0.55) 0%, transparent 55%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 7rem var(--pad) 4.5rem;
  animation: riseIn 0.9s ease both;
}

.brand-hero {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 1.25rem;
  background: linear-gradient(120deg, #fff 20%, var(--accent) 70%, var(--teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  max-width: 16ch;
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-lead {
  max-width: 36ch;
  color: var(--muted);
  font-size: 1.02rem;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0 1.25rem;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #1a1408;
  font-weight: 700;
}

.btn-primary:hover {
  background: #f0b53a;
}

.btn-ghost {
  border: 1px solid rgba(243, 240, 232, 0.35);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--ink);
}

/* Strip */
.strip {
  border-block: 1px solid var(--line);
  background: rgba(20, 28, 24, 0.7);
  overflow: hidden;
}

.strip-track {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  padding: 1rem 0;
  font-size: 0.88rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  animation: marquee 28s linear infinite;
}

.strip-track span::before {
  content: "◆";
  color: var(--accent);
  margin-right: 0.75rem;
  font-size: 0.55rem;
  vertical-align: middle;
}

/* Sections */
.section {
  padding: clamp(4rem, 10vw, 7rem) var(--pad);
}

.section-head {
  max-width: var(--max);
  margin: 0 auto 2.5rem;
}

.section-head h2,
.platform-copy h2,
.about-layout h2,
.contact-layout h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.75rem;
}

.section-head p,
.platform-copy > p {
  max-width: 40ch;
  color: var(--muted);
}

.service-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--max);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.service-list li {
  padding: 1.75rem 1.25rem 1.75rem 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding-right: 1.5rem;
  padding-left: 1.25rem;
}

.service-list li:nth-child(3n) {
  border-right: none;
}

.service-list h3 {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
}

.service-list p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Platform */
.platform {
  background:
    linear-gradient(180deg, transparent, rgba(47, 191, 160, 0.05) 40%, transparent),
    var(--bg);
}

.platform-layout {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.platform-points {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.platform-points li {
  display: grid;
  gap: 0.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
}

.platform-points strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.platform-points span {
  color: var(--muted);
  font-size: 0.92rem;
}

.platform-panel {
  background: linear-gradient(160deg, #1a2420, #101612);
  border: 1px solid var(--line);
  padding: 1.5rem;
  min-height: 280px;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.panel-top span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.panel-top strong {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.panel-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.55rem;
  height: 120px;
  margin: 0.5rem 0;
}

.panel-bars i {
  flex: 1;
  height: var(--h);
  background: linear-gradient(180deg, var(--teal), rgba(232, 163, 23, 0.75));
  opacity: 0.85;
  transform-origin: bottom;
  animation: barRise 1.1s ease both;
}

.panel-bars i:nth-child(2) { animation-delay: 0.08s; }
.panel-bars i:nth-child(3) { animation-delay: 0.16s; }
.panel-bars i:nth-child(4) { animation-delay: 0.24s; }
.panel-bars i:nth-child(5) { animation-delay: 0.32s; }
.panel-bars i:nth-child(6) { animation-delay: 0.4s; }
.panel-bars i:nth-child(7) { animation-delay: 0.48s; }

.panel-row {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.panel-row b {
  color: var(--ink);
  font-family: var(--font-display);
}

/* About */
.about {
  border-block: 1px solid var(--line);
}

.about-layout {
  max-width: 720px;
  margin: 0 auto;
}

.about-layout p {
  color: var(--muted);
  margin-top: 1rem;
  font-size: 1.02rem;
}

/* Contact */
.contact-layout {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.contact-layout > div:first-child p {
  color: var(--muted);
  margin-top: 0.75rem;
}

.contact-email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
}

.contact-email:hover {
  color: #f0b53a;
}

.contact-addr,
.contact-company {
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-company {
  margin-top: 1rem;
  color: var(--ink);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.25rem var(--pad) 2rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  align-items: center;
}

.footer-inner .brand-text {
  color: var(--ink);
  font-size: 1rem;
}

/* Motion helpers */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.2%, -0.8%, 0); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes barRise {
  from { transform: scaleY(0.2); opacity: 0.3; }
  to { transform: scaleY(1); opacity: 0.85; }
}

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

  .service-list li:nth-child(3n) {
    border-right: 1px solid var(--line);
  }

  .service-list li:nth-child(2n) {
    border-right: none;
  }

  .platform-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav {
    display: none;
  }

  .nav.is-open {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(12, 18, 16, 0.96);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.75rem;
    font-size: 1.25rem;
    color: var(--ink);
  }

  .nav-toggle {
    display: inline-flex;
    z-index: 60;
  }

  .service-list {
    grid-template-columns: 1fr;
  }

  .service-list li,
  .service-list li:nth-child(3n),
  .service-list li:nth-child(2n) {
    border-right: none;
    padding-left: 0;
    padding-right: 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-content {
    padding-bottom: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-media img,
  .strip-track,
  .panel-bars i {
    animation: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}