/* T5D Website v2
   Tec5uport Dimension — Omnichain Intelligent Support Layer
*/

:root {
  --black: #05070D;
  --black-2: #08111F;
  --panel: rgba(12, 21, 36, 0.72);
  --panel-2: rgba(16, 28, 47, 0.88);
  --royal: #1B5CFF;
  --blue: #4D8DFF;
  --cyan: #9FD7FF;
  --ruby: #E21B3C;
  --gunmetal: #2D3743;
  --silver: #C7D3E0;
  --white: #F7FAFF;
  --muted: #95A3B4;
  --line: rgba(199, 211, 224, 0.16);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 24px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 20% 12%, rgba(27, 92, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 80% 6%, rgba(226, 27, 60, 0.12), transparent 30rem),
    linear-gradient(180deg, #05070D 0%, #07101E 42%, #05070D 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(159, 215, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159, 215, 255, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black, transparent 75%);
}

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

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

.container {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: rgba(5, 7, 13, 0.76);
  border-bottom: 1px solid var(--line);
}

.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  letter-spacing: 0.09em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  position: relative;
  background: linear-gradient(145deg, #101927, #05070D);
  border: 1px solid rgba(199, 211, 224, 0.25);
  box-shadow: inset 0 0 18px rgba(77, 141, 255, 0.16), 0 0 22px rgba(27, 92, 255, 0.18);
}

.brand-mark::before {
  content: "";
  width: 27px;
  height: 27px;
  background: linear-gradient(145deg, var(--silver), var(--gunmetal));
  clip-path: polygon(50% 0%, 100% 36%, 81% 100%, 19% 100%, 0% 36%);
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--silver);
  font-weight: 700;
  font-size: 0.92rem;
}

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

.nav-cta {
  display: inline-flex;
  padding: 11px 16px;
  border-radius: 999px;
  border: 1px solid rgba(159, 215, 255, 0.28);
  background: rgba(27, 92, 255, 0.12);
}

.mobile-toggle {
  display: none;
  border: 1px solid var(--line);
  color: var(--white);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 10px 12px;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  align-items: center;
  padding: 72px 0 96px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 42px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  width: fit-content;
  padding: 9px 14px;
  border: 1px solid rgba(159, 215, 255, 0.22);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(159, 215, 255, 0.06);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.kicker::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ruby);
  box-shadow: 0 0 18px rgba(226, 27, 60, 0.65);
}

h1 {
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  line-height: 0.94;
  margin: 22px 0 22px;
  letter-spacing: -0.07em;
}

.gradient-text {
  background: linear-gradient(105deg, #FFFFFF 0%, #BFD5FF 36%, #4D8DFF 70%, #F7FAFF 100%);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-copy {
  max-width: 690px;
  color: var(--silver);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 900;
  border: 1px solid transparent;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--royal), #0D3BC5);
  box-shadow: 0 14px 44px rgba(27, 92, 255, 0.32);
}

.btn-secondary {
  color: var(--silver);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: rgba(159, 215, 255, 0.36);
  background: rgba(159, 215, 255, 0.08);
}

.hero-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(160deg, rgba(12, 21, 36, 0.92), rgba(5, 7, 13, 0.64));
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(77, 141, 255, 0.4), transparent 28%, rgba(226, 27, 60, 0.24) 72%, transparent);
  z-index: -1;
}

.pentagon-visual {
  width: min(100%, 580px);
  margin-inline: auto;
  filter: drop-shadow(0 24px 50px rgba(0, 0, 0, 0.38));
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.meta-box {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
}

.meta-box strong {
  display: block;
  font-size: 1.1rem;
}

.meta-box span {
  display: block;
  color: var(--muted);
  margin-top: 4px;
  font-size: 0.84rem;
}

.section {
  padding: 92px 0;
}

.section-header {
  max-width: 760px;
  margin-bottom: 34px;
}

.eyebrow {
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h2 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  margin: 10px 0 16px;
  letter-spacing: -0.055em;
  line-height: 1;
}

.section-header p,
.lede {
  color: var(--silver);
  font-size: 1.12rem;
  line-height: 1.72;
}

.problem-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--panel);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.18);
}

.panel h3 {
  font-size: 1.4rem;
  margin: 0 0 14px;
}

.panel p, .panel li {
  color: var(--silver);
  line-height: 1.65;
}

.clean-list {
  padding-left: 1.1rem;
  margin: 0;
}

.clean-list li {
  margin: 10px 0;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.pillar-card {
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(77, 141, 255, 0.08), transparent),
    rgba(255, 255, 255, 0.035);
  position: relative;
  overflow: hidden;
}

.pillar-card::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -34px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(27, 92, 255, 0.18);
  filter: blur(8px);
}

.pillar-number {
  color: var(--ruby);
  font-weight: 950;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

.pillar-card h3 {
  margin: 16px 0 10px;
  font-size: 1.24rem;
}

.pillar-card p {
  margin: 0;
  color: var(--silver);
  line-height: 1.58;
}

.framework {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 32px;
  align-items: center;
}

.framework-map {
  position: relative;
  min-height: 500px;
  border-radius: 34px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at center, rgba(27, 92, 255, 0.22), transparent 22rem),
    rgba(255, 255, 255, 0.035);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.framework-map::before {
  content: "";
  position: absolute;
  inset: 36px;
  border: 1px solid rgba(159, 215, 255, 0.16);
  clip-path: polygon(50% 0%, 100% 36%, 81% 100%, 19% 100%, 0% 36%);
}

.mini-pentagon {
  width: 280px;
  height: 280px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(199, 211, 224, 0.22), rgba(45, 55, 67, 0.12));
  clip-path: polygon(50% 0%, 100% 36%, 81% 100%, 19% 100%, 0% 36%);
  position: relative;
}

.mini-pentagon::before {
  content: "";
  position: absolute;
  inset: 14px;
  background: var(--black-2);
  clip-path: inherit;
}

.mini-pentagon::after {
  content: "";
  position: absolute;
  inset: 48px;
  border: 2px solid rgba(77, 141, 255, 0.55);
  clip-path: inherit;
}

.mini-pentagon span {
  z-index: 2;
  font-size: 3rem;
  font-weight: 950;
  letter-spacing: 0.08em;
}

.map-label {
  position: absolute;
  font-weight: 900;
  color: var(--silver);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.86rem;
}

.map-label.top { top: 52px; left: 50%; transform: translateX(-50%); color: var(--white); }
.map-label.ul { top: 170px; left: 52px; }
.map-label.ur { top: 170px; right: 52px; }
.map-label.ll { bottom: 70px; left: 86px; }
.map-label.lr { bottom: 70px; right: 86px; }

.flow-list {
  display: grid;
  gap: 14px;
}

.flow-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
}

.flow-num {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(27, 92, 255, 0.32), rgba(226, 27, 60, 0.18));
  display: grid;
  place-items: center;
  font-weight: 950;
  color: var(--white);
}

.flow-item h3 {
  margin: 0 0 4px;
}

.flow-item p {
  margin: 0;
  color: var(--silver);
  line-height: 1.55;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.doc-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  min-height: 260px;
  display: flex;
  flex-direction: column;
}

.doc-card h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
}

.doc-card p {
  color: var(--silver);
  line-height: 1.6;
  margin: 0 0 24px;
}

.doc-card a {
  margin-top: auto;
  color: var(--cyan);
  font-weight: 900;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
}

.phase {
  color: var(--cyan);
  font-weight: 950;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.timeline-item h3 {
  margin: 0 0 8px;
}

.timeline-item p {
  margin: 0;
  color: var(--silver);
  line-height: 1.58;
}

.cta {
  padding: 58px;
  border: 1px solid rgba(159, 215, 255, 0.22);
  border-radius: 34px;
  background:
    radial-gradient(circle at 20% 20%, rgba(27, 92, 255, 0.26), transparent 26rem),
    linear-gradient(135deg, rgba(12, 21, 36, 0.9), rgba(5, 7, 13, 0.84));
  box-shadow: var(--shadow);
}

.cta h2 {
  margin-top: 0;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 34px 0;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.page-hero {
  padding: 78px 0 42px;
}

.content-page {
  max-width: 920px;
  margin-inline: auto;
  padding: 0 0 90px;
}

.content-page article {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.035);
  padding: clamp(24px, 5vw, 54px);
}

.content-page h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
}

.content-page h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-top: 42px;
}

.content-page h3 {
  margin-top: 30px;
  font-size: 1.32rem;
}

.content-page p,
.content-page li {
  color: var(--silver);
  line-height: 1.78;
  font-size: 1.05rem;
}

.content-page hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 34px 0;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 32px;
}

@media (max-width: 980px) {
  .hero-grid,
  .problem-solution,
  .framework {
    grid-template-columns: 1fr;
  }

  .pillars-grid,
  .docs-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero {
    padding-top: 44px;
  }

  .framework-map {
    min-height: 420px;
  }
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    padding: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(5, 7, 13, 0.96);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .pillars-grid,
  .docs-grid,
  .hero-meta {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .cta {
    padding: 30px;
  }

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

  .framework-map {
    min-height: 360px;
  }

  .mini-pentagon {
    width: 210px;
    height: 210px;
  }

  .map-label {
    font-size: 0.7rem;
  }

  .map-label.top { top: 36px; }
  .map-label.ul { top: 128px; left: 22px; }
  .map-label.ur { top: 128px; right: 22px; }
  .map-label.ll { bottom: 48px; left: 40px; }
  .map-label.lr { bottom: 48px; right: 40px; }

  .brand strong {
    font-size: 0.9rem;
  }
}


/* Pillar icon quick links */
.pillar-link-section {
  margin-top: -58px;
  padding: 0 0 34px;
  position: relative;
  z-index: 4;
}

.pillar-link-dock {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(5, 7, 13, 0.74);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.pillar-link {
  min-height: 126px;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 14px 10px;
  border: 1px solid rgba(199, 211, 224, 0.12);
  border-radius: 22px;
  background:
    radial-gradient(circle at 50% 0%, rgba(27, 92, 255, 0.18), transparent 70%),
    rgba(255, 255, 255, 0.035);
  color: var(--silver);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.78rem;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.pillar-link:hover {
  transform: translateY(-4px);
  border-color: rgba(159, 215, 255, 0.38);
  background:
    radial-gradient(circle at 50% 0%, rgba(27, 92, 255, 0.30), transparent 70%),
    rgba(255, 255, 255, 0.055);
  color: var(--white);
}

.pillar-link img {
  width: 64px;
  height: 64px;
}

.pillar-icon {
  width: 78px;
  height: 78px;
  margin-bottom: 16px;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.3));
}

.pillar-anchor {
  position: absolute;
  top: 16px;
  right: 18px;
  color: rgba(159, 215, 255, 0.55);
  font-weight: 900;
}

.pillar-card {
  scroll-margin-top: 110px;
}

.pillar-card:target {
  border-color: rgba(159, 215, 255, 0.5);
  box-shadow: 0 0 0 1px rgba(159, 215, 255, 0.22), 0 18px 70px rgba(27, 92, 255, 0.18);
}

@media (max-width: 980px) {
  .pillar-link-dock {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 760px) {
  .pillar-link-section {
    margin-top: -28px;
  }

  .pillar-link-dock {
    grid-template-columns: 1fr;
  }

  .pillar-link {
    min-height: 88px;
    grid-template-columns: 56px 1fr;
    place-items: center start;
    text-align: left;
    padding: 14px 18px;
  }

  .pillar-link img {
    width: 52px;
    height: 52px;
  }
}