/* ============================================================
   AIXIAO — style.css
   Dark theme · mint/teal-cyan accent (#2DD4BF) · deep teal (#0F766E)
   ============================================================ */

:root {
  --bg: #0B1210;
  --bg-soft: #0E1815;
  --bg-panel: #101C18;
  --surface: #13211C;
  --surface-2: #17271F;
  --line: #1E332B;
  --line-soft: #162820;
  --text: #E6F2EE;
  --text-muted: #9DBBB1;
  --accent: #2DD4BF;
  --accent-bright: #5EEAD4;
  --accent-deep: #0F766E;
  --accent-deep-2: #134E4A;
  --on-accent: #04211D;
  --radius: 16px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.15;
  color: var(--text);
  font-weight: 700;
}

/* ---------- Scroll reveal (safe without JS) ---------- */
.fade-up {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .fade-up {
  opacity: 0;
  transform: translateY(22px);
}

.js .fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   PRISM NAVIGATION (.prism-nav)
   ============================================================ */
.prism-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #0B1210;
  border-bottom: 1px solid var(--line-soft);
}

.prism-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.prism-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.prism-nav__wordmark {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--text);
}

/* CSS-drawn prism: ray in → triangle → fan of split colors */
.prism-mark {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 30px;
  flex-shrink: 0;
}

.prism-ray {
  position: absolute;
  left: 0;
  top: 14px;
  width: 14px;
  height: 2px;
  background: var(--text);
}

.prism-triangle {
  position: absolute;
  left: 12px;
  top: 3px;
  width: 0;
  height: 0;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-left: 16px solid var(--accent);
}

.prism-fan {
  position: absolute;
  left: 27px;
  top: 14px;
  width: 17px;
  height: 2px;
}

.prism-fan i {
  position: absolute;
  left: 0;
  top: 0;
  width: 17px;
  height: 2px;
  background: var(--accent);
  transform-origin: left center;
}

.prism-fan i:nth-child(1) { transform: rotate(-26deg); background: var(--accent-bright); }
.prism-fan i:nth-child(2) { transform: rotate(-9deg);  background: var(--accent); }
.prism-fan i:nth-child(3) { transform: rotate(9deg);   background: var(--accent-deep); }
.prism-fan i:nth-child(4) { transform: rotate(26deg);  background: var(--accent-bright); }

.prism-nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}

.prism-nav__links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.prism-nav__links a:hover {
  color: var(--accent);
}

.prism-nav__cta {
  flex-shrink: 0;
  background-color: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 20px;
  border-radius: 8px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.prism-nav__cta:hover {
  background-color: var(--accent-bright);
  transform: translateY(-1px);
}

.prism-nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.prism-nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ============================================================
   MATRIX PANEL HERO (.matrix-hero)
   ============================================================ */
.matrix-hero {
  background-color: var(--bg);
  padding: 88px 24px 96px;
  border-bottom: 1px solid var(--line-soft);
}

.matrix-hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.matrix-hero__eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.matrix-hero__title {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.matrix-hero__sub {
  color: var(--text-muted);
  font-size: 1.12rem;
  max-width: 560px;
  margin-bottom: 36px;
}

.matrix-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn--mint {
  background-color: var(--accent);
  color: var(--on-accent);
}

.btn--mint:hover {
  background-color: var(--accent-bright);
  transform: translateY(-1px);
}

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

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

/* CSS-drawn matrix panel */
.matrix-hero__panel {
  display: flex;
  justify-content: center;
}

.matrix-panel {
  position: relative;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 4 / 3;
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  overflow: hidden;
  /* dot-matrix grid */
  background-image: radial-gradient(var(--accent-deep-2) 1.6px, transparent 1.6px);
  background-size: 22px 22px;
  box-shadow: 0 30px 60px -30px #000000;
}

/* data blocks: rounded rects with line patterns */
.matrix-block {
  position: absolute;
  border-radius: 10px;
  border: 1px solid var(--line);
  background-color: var(--surface);
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 12px;
}

.matrix-block span {
  display: block;
  height: 6px;
  border-radius: 3px;
  background-color: var(--accent-deep);
}

.matrix-block span:nth-child(even) {
  background-color: var(--accent);
}

.matrix-block--a {
  top: 26px;
  left: 26px;
  width: 46%;
  height: 34%;
}

.matrix-block--b {
  bottom: 26px;
  left: 26px;
  width: 30%;
  height: 26%;
}

.matrix-block--c {
  top: 26px;
  right: 26px;
  width: 30%;
  height: 40%;
}

/* radar-style sweep arc */
.matrix-radar {
  position: absolute;
  right: 44px;
  bottom: 30px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 1px solid var(--accent-deep);
  background:
    radial-gradient(circle, var(--surface) 0 42%, transparent 43%);
  overflow: hidden;
}

.matrix-radar__ring {
  position: absolute;
  inset: 28%;
  border-radius: 50%;
  border: 1px solid var(--accent-deep-2);
}

.matrix-radar__sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50%;
  height: 2px;
  background: var(--accent);
  transform-origin: left center;
  animation: sweep 4s linear infinite;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
.section-eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* ============================================================
   STATEMENT ROW
   ============================================================ */
.statement-section {
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 96px 24px;
}

.statement-section__inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.statement-section__lead {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 24px;
}

.statement-section__note {
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================================
   STATS SECTION (big numerals)
   ============================================================ */
.stats-section {
  background-color: var(--bg);
  border-bottom: 1px solid var(--line-soft);
  padding: 72px 24px;
}

.stats-section__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat {
  text-align: center;
  padding: 36px 16px;
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.stat__number {
  display: block;
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.stat__label {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

/* ============================================================
   PROCESS SECTION (numbered 01–05 with connecting lines)
   ============================================================ */
.process-section {
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 96px 24px;
}

.process-section__head {
  max-width: 1200px;
  margin: 0 auto 56px;
}

.process-list {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}

.process-list::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 47px;
  width: 2px;
  background: linear-gradient(var(--accent-deep), var(--accent-deep-2));
}

.process-step {
  position: relative;
  display: flex;
  gap: 28px;
  padding: 24px 0;
}

.process-step__num {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  color: var(--on-accent);
  font-weight: 800;
  font-size: 1.05rem;
  border-radius: 12px;
}

.process-step__body h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.process-step__body p {
  color: var(--text-muted);
  max-width: 640px;
}

/* ============================================================
   COMPARISON TABLE SECTION
   ============================================================ */
.compare-section {
  background-color: var(--bg);
  border-bottom: 1px solid var(--line-soft);
  padding: 96px 24px;
}

.compare-section__head {
  max-width: 1200px;
  margin: 0 auto 48px;
}

.compare-table-wrap {
  max-width: 1000px;
  margin: 0 auto;
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
}

.compare-table th,
.compare-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.compare-table thead th {
  background-color: var(--bg-panel);
  color: var(--text);
  font-weight: 700;
  font-size: 1.02rem;
}

.compare-table thead th:not(:first-child) {
  text-align: center;
}

.compare-table tbody th {
  color: var(--text-muted);
  font-weight: 600;
}

.compare-table tbody td {
  text-align: center;
  color: var(--text);
}

.compare-table tbody tr:nth-child(even) {
  background-color: var(--bg-soft);
}

.cell-off {
  color: #6C877E !important;
}

.cell-on {
  color: var(--accent) !important;
  font-weight: 700;
}

/* ============================================================
   SOLUTIONS SECTION (horizontal scroll cards)
   ============================================================ */
.solutions-section {
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 96px 0 96px 24px;
}

.solutions-section__head {
  max-width: 1200px;
  margin: 0 auto 48px;
  padding-right: 24px;
}

.solution-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 24px 24px 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.solution-card {
  flex: 0 0 320px;
  scroll-snap-align: start;
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.solution-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--accent-deep-2);
  color: var(--accent-bright);
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.solution-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.solution-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
}

/* ============================================================
   CTA SECTION (split band + contact form)
   ============================================================ */
.cta-section {
  background-color: var(--bg);
  padding: 96px 24px;
}

.cta-section__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.cta-section__text {
  color: var(--text-muted);
  font-size: 1.08rem;
  margin: 20px 0 28px;
  max-width: 480px;
}

.cta-section__contacts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
}

.cta-section__contacts p {
  color: var(--text-muted);
}

.cta-section__contacts strong {
  color: var(--text);
  display: inline-block;
  min-width: 60px;
}

.cta-section__contacts a {
  color: var(--accent);
}

.contact-form {
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form label {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
  margin-top: 10px;
}

.contact-form input,
.contact-form textarea {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 14px;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #6C877E;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form .btn {
  margin-top: 18px;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.contact-form__note {
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.4em;
  margin-top: 8px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background-color: #08100E;
  border-top: 3px solid var(--accent);
}

.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.4fr 1fr;
  gap: 40px;
}

.site-footer__brand {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--text);
  margin-bottom: 16px;
}

.site-footer__about p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 300px;
}

.site-footer__col h3 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
  margin-bottom: 18px;
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__col a,
.site-footer__col li {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.site-footer__col a:hover {
  color: var(--accent);
}

.site-footer__bottom {
  border-top: 1px solid var(--line-soft);
}

.site-footer__bottom p {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  color: #6C877E;
  font-size: 0.88rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .prism-nav__links {
    position: fixed;
    top: 61px;
    left: 0;
    right: 0;
    background-color: #0B1210;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 20px;
    display: none;
  }

  .prism-nav__links.open {
    display: flex;
  }

  .prism-nav__links a {
    padding: 14px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--line-soft);
  }

  .prism-nav__cta {
    margin-left: auto;
  }

  .prism-nav__toggle {
    display: flex;
  }

  .matrix-hero {
    padding: 56px 24px 72px;
  }

  .matrix-hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .matrix-hero__panel {
    order: -1;
  }

  .matrix-panel {
    max-width: 420px;
  }

  .stats-section__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cta-section__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .site-footer__about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .stats-section__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__about {
    grid-column: auto;
  }

  .process-list::before {
    left: 29px;
  }

  .process-step {
    gap: 18px;
  }

  .process-step__num {
    width: 44px;
    height: 44px;
    font-size: 0.9rem;
    border-radius: 10px;
  }
}