/* Edgefall landing — dark theme, system-friendly contrast */

:root {
  --bg: #0b0d10;
  --bg-elevated: #12151c;
  --bg-card: #161a22;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaef;
  --muted: #9aa3b2;
  --accent: #5eead4;
  --accent-dim: rgba(94, 234, 212, 0.15);
  --accent-strong: #2dd4bf;
  /* DM Sans first; Google Fonts use display=optional in index.html — no post-paint swap (fallbacks match if font is skipped) */
  --font-sans: "DM Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  --radius: 12px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--accent-strong);
  color: #042f2e;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.wrap {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

.nav-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text) !important;
  background: var(--bg-elevated);
}

.nav-cta:hover {
  border-color: var(--accent);
  color: var(--accent) !important;
}

/* Mobile nav */
.nav-mobile {
  display: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-direction: column;
  gap: 5px;
  position: relative;
  z-index: 70;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle.active .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 600px) {
  /* Header must stack above the fullscreen overlay so the hamburger stays tappable to close */
  .site-header {
    z-index: 70;
  }

  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-mobile {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(11, 13, 16, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
    z-index: 60;
    padding-top: 3.5rem;
  }

  .nav-mobile.open {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-mobile a {
    color: var(--muted);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
  }

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

  .nav-mobile .nav-cta {
    font-size: 1.1rem !important;
    padding: 0.6rem 1.4rem;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: clamp(3.5rem, 12vw, 7rem) 0 clamp(4rem, 10vw, 6rem);
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  inset: -20% 20% auto;
  height: 60%;
  background: radial-gradient(ellipse at center, var(--accent-dim), transparent 65%);
  pointer-events: none;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.25rem);
  line-height: 1.12;
  font-weight: 700;
  margin: 0 0 1.25rem;
  max-width: 18ch;
}

.hero h1::before {
  content: "";
  display: block;
  width: 3.5rem;
  height: 3px;
  background: var(--accent-strong);
  margin-bottom: 1.5rem;
  border-radius: 2px;
}

.lede {
  margin: 0 0 2rem;
  max-width: 52ch;
  color: var(--muted);
  font-size: 1.1rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent-strong), #14b8a6);
  color: #042f2e;
}

.btn.primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

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

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

.btn.large {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

/* Sections */
.section {
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.section-alt {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.75rem;
}

.section-intro {
  margin: 0 0 2.5rem;
  color: var(--muted);
  max-width: 55ch;
}

.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  will-change: transform;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  border-top-color: var(--accent-strong);
  transform: translateY(-6px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(94, 234, 212, 0.1);
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.card-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

/* Technology logos (Simple Icons SVGs in tech/) — monochrome for dark UI */
.tech-strip {
  margin-top: clamp(2.5rem, 6vw, 3.5rem);
  padding-top: clamp(1.75rem, 4vw, 2.25rem);
  border-top: 1px solid var(--border);
}

.tech-label {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
}

.tech-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  /* Keep gaps a bit conservative so one row fits inside .wrap (1100px) without flex-shrink crushing items */
  gap: clamp(1.25rem, 3.2vw, 2rem);
  row-gap: clamp(1rem, 3vw, 1.5rem);
}

.tech-item {
  display: flex;
  /* Do not shrink: shrinking the flex item makes the <img> overflow and overlap the next logo (Chrome/BRAVE). */
  flex: 0 0 auto;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  line-height: 0;
  min-height: 48px;
}

.tech-item img {
  display: block;
  /* Hard cap both axes: some UAs use large SVG intrinsics (e.g. 300×150) if hints/CSS slip. */
  height: 44px;
  max-height: 44px;
  width: auto;
  max-width: min(200px, 50vw);
  object-fit: contain;
  object-position: center;
  opacity: 0.85;
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.tech-item:hover img,
.tech-item:focus-within img {
  opacity: 1;
  filter: drop-shadow(0 0 12px rgba(94, 234, 212, 0.18));
}

/* Steps */
.steps {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  counter-reset: step;
}

.step {
  padding: 1.5rem 1.25rem;
  border-left: 2px solid var(--accent);
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
  position: relative;
}

.step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Split */
.split {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 800px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}

.mono-note {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 1.5rem;
}

/* Founder */
.founder-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.founder-role {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin: 0.2rem 0 1.25rem;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.35rem;
}

.checklist {
  margin: 0;
  padding-left: 0;
  list-style: none;
  color: var(--muted);
}

.checklist li {
  margin-bottom: 0.65rem;
  padding-left: 1.4rem;
  position: relative;
  color: #c8cdd3;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-strong);
}

/* About (centered) */
.about-centered {
  text-align: center;
}

.about-inner {
  max-width: 600px;
  margin-inline: auto;
}

.headshot {
  display: block;
  width: clamp(120px, 28vw, 160px);
  height: clamp(120px, 28vw, 160px);
  border-radius: 50%;
  object-fit: cover;
  object-position: center 18%;
  margin: 0 auto 1.5rem;
  border: 3px solid var(--border);
  box-shadow: 0 0 0 4px var(--bg), 0 0 24px rgba(94, 234, 212, 0.12);
  filter: grayscale(0.15) contrast(1.04);
}

.about-inner p {
  color: var(--muted);
}

.about-inner .section-title,
.about-inner .founder-name,
.about-inner .founder-role {
  text-align: center;
}

/* Contact */
.contact {
  text-align: center;
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
  padding: clamp(3.5rem, 10vw, 5.5rem) 0;
}

.contact-inner p {
  color: var(--muted);
  max-width: 42ch;
  margin: 0 auto 1.5rem;
}

.contact-actions {
  justify-content: center;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  opacity: 0.85;
}

.footer-portal {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none !important;
  border: 1px solid rgba(94, 234, 212, 0.25);
  border-radius: 6px;
  padding: 0.25em 0.65em;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

/* Browsers default :visited to purple; restate so live site matches dev after clicking the link */
.footer-portal:link,
.footer-portal:visited {
  color: var(--accent);
}

.footer-portal:hover {
  color: var(--accent-strong);
  background: var(--accent-dim);
  border-color: var(--accent-strong);
}

.footer-portal:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

/* Reveal animations */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] .card {
  opacity: 0;
}

[data-reveal].revealed .card {
  animation: card-fade 0.5s ease-out forwards;
}

[data-reveal].revealed .card:nth-child(2) {
  animation-delay: 0.12s;
}

[data-reveal].revealed .card:nth-child(3) {
  animation-delay: 0.24s;
}

[data-reveal] .tech-item {
  opacity: 0;
}

[data-reveal].revealed .tech-item {
  animation: card-fade 0.45s ease-out forwards;
}

[data-reveal].revealed .tech-item:nth-child(1) {
  animation-delay: 0.3s;
}

[data-reveal].revealed .tech-item:nth-child(2) {
  animation-delay: 0.34s;
}

[data-reveal].revealed .tech-item:nth-child(3) {
  animation-delay: 0.38s;
}

[data-reveal].revealed .tech-item:nth-child(4) {
  animation-delay: 0.42s;
}

[data-reveal].revealed .tech-item:nth-child(5) {
  animation-delay: 0.46s;
}

[data-reveal].revealed .tech-item:nth-child(6) {
  animation-delay: 0.5s;
}

[data-reveal].revealed .tech-item:nth-child(7) {
  animation-delay: 0.54s;
}

[data-reveal].revealed .tech-item:nth-child(8) {
  animation-delay: 0.58s;
}

[data-reveal].revealed .tech-item:nth-child(9) {
  animation-delay: 0.62s;
}

[data-reveal].revealed .tech-item:nth-child(10) {
  animation-delay: 0.66s;
}

[data-reveal].revealed .tech-item:nth-child(11) {
  animation-delay: 0.7s;
}

[data-reveal].revealed .tech-item:nth-child(12) {
  animation-delay: 0.74s;
}

@keyframes card-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn.primary:hover,
  .card:hover {
    transform: none;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  [data-reveal] .card,
  [data-reveal].revealed .card {
    opacity: 1;
    animation: none;
  }

  [data-reveal] .tech-item,
  [data-reveal].revealed .tech-item {
    opacity: 1;
    animation: none;
  }
}