/* ─────────────────────────────────────────────
   Quantum Reach — Global Design System
   Linear-inspired · Electric Muted Green
───────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Brand — Electric Muted Green */
  --color-primary:        #3ecf8e;
  --color-primary-hover:  #5ee8a6;
  --color-primary-focus:  #2db574;
  --color-primary-dim:    rgba(62, 207, 142, 0.12);
  --color-primary-glow:   rgba(62, 207, 142, 0.25);
  --color-on-primary:     #010102;

  /* Canvas / Surfaces */
  --color-canvas:         #010102;
  --color-surface-1:      #0f1011;
  --color-surface-2:      #141516;
  --color-surface-3:      #18191a;
  --color-surface-4:      #191a1b;

  /* Borders */
  --color-hairline:        #23252a;
  --color-hairline-strong: #34343a;
  --color-hairline-accent: rgba(62, 207, 142, 0.2);

  /* Text */
  --color-ink:             #f7f8f8;
  --color-ink-muted:       #d0d6e0;
  --color-ink-subtle:      #8a8f98;
  --color-ink-tertiary:    #62666d;

  /* Semantic */
  --color-success:         #27a644;
  --color-inverse-canvas:  #ffffff;
  --color-inverse-ink:     #000000;

  /* Typography */
  --font:  'Inter', -apple-system, system-ui, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', ui-monospace, 'Cascadia Code', monospace;

  /* Radius */
  --r-xs:  4px;
  --r-sm:  6px;
  --r-md:  8px;
  --r-lg:  12px;
  --r-xl:  16px;
  --r-xxl: 24px;
  --r-pill:9999px;

  /* Spacing */
  --s-xxs: 4px;
  --s-xs:  8px;
  --s-sm:  12px;
  --s-md:  16px;
  --s-lg:  24px;
  --s-xl:  32px;
  --s-xxl: 48px;
  --s-section: 96px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-fast: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.05px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-canvas); }
::-webkit-scrollbar-thumb { background: var(--color-hairline-strong); border-radius: var(--r-pill); }

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--s-xl);
}

section {
  padding: var(--s-section) 0;
  border-bottom: 1px solid var(--color-hairline);
  position: relative;
}

/* ── Typography helpers ── */
.eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--color-primary);
  text-transform: uppercase;
}

.section-headline {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -1.0px;
  color: var(--color-ink);
  max-width: 640px;
}

.section-sub {
  font-size: 18px;
  color: var(--color-ink-muted);
  max-width: 560px;
  line-height: 1.6;
  letter-spacing: -0.1px;
  margin-top: var(--s-md);
}

.section-header { margin-bottom: var(--s-xxl); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-xs);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  border-radius: var(--r-md);
  padding: 10px 18px;
  cursor: pointer;
  border: none;
  transition: background 0.18s var(--ease), color 0.18s, box-shadow 0.18s, transform 0.15s;
  white-space: nowrap;
  text-decoration: none;
}

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

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 0 0 0 var(--color-primary-glow);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 24px var(--color-primary-glow);
}

.btn-secondary {
  background: var(--color-surface-1);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}
.btn-secondary:hover {
  border-color: var(--color-hairline-strong);
  background: var(--color-surface-2);
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink-muted);
  border: 1px solid var(--color-hairline);
}
.btn-ghost:hover { color: var(--color-ink); border-color: var(--color-hairline-strong); }

.btn-lg { padding: 14px 28px; font-size: 15px; }

/* ── Cards ── */
.card {
  background: var(--color-surface-1);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--s-lg);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}

.card:hover {
  border-color: var(--color-hairline-accent);
  box-shadow: 0 0 32px var(--color-primary-dim);
  transform: translateY(-2px);
}

/* Portfolio cards — 3D tilt + scroll-in + cursor glow */
.portfolio-card {
  position: relative;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 0.3s var(--ease),
              box-shadow 0.4s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
  transform:
    perspective(1200px)
    translateY(var(--p-ty, 30px))
    rotateX(var(--p-rx, 0deg))
    rotateY(var(--p-ry, 0deg))
    scale(var(--p-scale, 0.96));
  opacity: var(--p-opacity, 0);
}
.portfolio-card.in-view {
  --p-ty: 0px;
  --p-scale: 1;
  --p-opacity: 1;
}
.portfolio-card.in-view:hover {
  --p-ty: -10px;
  --p-scale: 1.02;
  border-color: var(--color-primary);
  box-shadow: 0 28px 80px rgba(62,207,142,0.22), 0 0 0 1px var(--color-primary-dim);
}
.portfolio-card.tilting {
  transition: transform 0.08s linear,
              border-color 0.3s var(--ease),
              box-shadow 0.4s var(--ease);
}

/* Cursor-following glow */
.portfolio-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    260px circle at var(--p-mx, 50%) var(--p-my, 50%),
    rgba(62, 207, 142, 0.18),
    transparent 55%
  );
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
  z-index: 1;
}
.portfolio-card:hover::before { opacity: 1; }

/* Image header zooms into the card */
.portfolio-card > div:first-child {
  transition: transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
  transform: translateZ(0);
  position: relative;
  z-index: 0;
}
.portfolio-card:hover > div:first-child { transform: scale(1.06); }
.portfolio-card > div:nth-child(2) { position: relative; z-index: 2; }

/* SVG line draw-in animation */
.portfolio-card svg path,
.portfolio-card svg polyline,
.portfolio-card svg circle {
  transition: stroke-dashoffset 1.6s cubic-bezier(0.2, 0.8, 0.2, 1) 0.15s,
              opacity 0.6s ease 0.4s;
}
.portfolio-card svg path[stroke],
.portfolio-card svg polyline[stroke] {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
}
.portfolio-card.in-view svg path[stroke],
.portfolio-card.in-view svg polyline[stroke] {
  stroke-dashoffset: 0;
}
.portfolio-card svg circle[fill] {
  opacity: 0;
  transform: scale(0.4);
  transform-origin: center;
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.portfolio-card.in-view svg circle[fill] {
  opacity: 1;
  transform: scale(1);
  transition-delay: calc(0.7s + (var(--i, 0) * 0.12s));
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-card { transition: none; --p-ty: 0; --p-scale: 1; --p-opacity: 1; }
  .portfolio-card svg path[stroke],
  .portfolio-card svg polyline[stroke] { stroke-dashoffset: 0; }
}

.card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-dim);
  border: 1px solid var(--color-hairline-accent);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--s-md);
  flex-shrink: 0;
}

.card-title {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.3px;
  color: var(--color-ink);
  margin-bottom: var(--s-xs);
}

.card-body {
  font-size: 14px;
  color: var(--color-ink-subtle);
  line-height: 1.6;
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-pill);
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink-muted);
}

.badge-green {
  background: var(--color-primary-dim);
  border-color: var(--color-hairline-accent);
  color: var(--color-primary);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}

/* ── Stat ── */
.stat {
  background: var(--color-surface-2);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--s-lg);
}

.stat-value {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -1.2px;
  color: var(--color-ink);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-value em { color: var(--color-primary); font-style: normal; }

.stat-label {
  font-size: 13px;
  color: var(--color-ink-subtle);
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 56px;
  background: rgba(1, 1, 2, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-hairline);
  display: flex;
  align-items: center;
  transition: background 0.3s;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav__brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: var(--s-sm);
}

.nav__brand-logo {
  height: 50px;
  width: auto;
  display: block;
}

/* Fallback Q mark if logo file missing */
.nav__brand-mark {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-on-primary);
  font-size: 14px;
  font-weight: 800;
  flex-shrink: 0;
}

.footer-logo {
  height: 50px;
  width: auto;
  display: block;
  margin-bottom: var(--s-sm);
}

/* ── Mobile nav drawer (shared across all pages) ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-ink-muted);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#nav-drawer {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0; bottom: 0;
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  z-index: 190;
  padding: var(--s-xl);
  overflow-y: auto;
}
#nav-drawer.open { display: block; }

.drawer-links { list-style: none; margin-bottom: var(--s-xl); }
.drawer-links li { border-bottom: 1px solid var(--color-hairline); }
.drawer-links a { display: block; padding: var(--s-md) 0; font-size: 16px; color: var(--color-ink-muted); }

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--s-xl);
  list-style: none;
}

.nav__links > li { position: relative; }

.nav__links a, .nav__links button {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-ink-subtle);
  transition: color 0.15s;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font);
}

.nav__links a:hover,
.nav__links button:hover { color: var(--color-ink); }

.nav__links .active { color: var(--color-ink); }

.nav__chevron {
  transition: transform 0.2s;
}

/* ── Mega Menu ── */
.mega-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: 680px;
  background: var(--color-surface-1);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-xl);
  padding: var(--s-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  box-shadow: 0 24px 64px rgba(0,0,0,0.6), 0 0 0 1px var(--color-hairline);
}

.mega-menu.open {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-sm);
}

.mega-menu__category {
  background: var(--color-surface-2);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--s-md);
  transition: border-color 0.15s;
}

.mega-menu__category:hover { border-color: var(--color-hairline-accent); }

.mega-menu__cat-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--s-sm);
  display: flex;
  align-items: center;
  gap: var(--s-xs);
}

.mega-menu__items {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mega-menu__item {
  display: flex;
  align-items: center;
  gap: var(--s-xs);
  padding: 6px var(--s-xs);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--color-ink-subtle);
  transition: background 0.12s, color 0.12s;
  cursor: pointer;
}

.mega-menu__item:hover {
  background: var(--color-surface-3);
  color: var(--color-ink);
}

.mega-menu__item::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  opacity: 0.6;
}

/* ── Footer ── */
.footer {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-xxl);
  padding-bottom: var(--s-xxl);
  border-bottom: 1px solid var(--color-hairline);
}

.footer__brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--s-sm);
  display: flex;
  align-items: center;
  gap: var(--s-xs);
}

.footer__tagline {
  font-size: 13px;
  color: var(--color-ink-subtle);
  line-height: 1.6;
  max-width: 240px;
  margin-bottom: var(--s-lg);
}

.footer__col-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink-subtle);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: var(--s-md);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--s-xs);
}

.footer__links a {
  font-size: 13px;
  color: var(--color-ink-tertiary);
  transition: color 0.15s;
}
.footer__links a:hover { color: var(--color-ink); }

.footer__bottom {
  padding: var(--s-lg) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy {
  font-size: 12px;
  color: var(--color-ink-tertiary);
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }


/* ── Glow line ── */
.glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.4;
  margin: 0;
}

/* ── Grid helpers ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-md); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-md); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-md); }

/* ── CTA Banner ── */
.cta-banner {
  background: var(--color-surface-1);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--s-xxl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-xl);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 0% 50%, var(--color-primary-dim), transparent);
  pointer-events: none;
}

.cta-headline {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.6px;
  color: var(--color-ink);
  max-width: 480px;
  position: relative;
}

.cta-sub {
  font-size: 16px;
  color: var(--color-ink-muted);
  margin-top: var(--s-sm);
  position: relative;
}

.cta-actions {
  display: flex;
  gap: var(--s-sm);
  flex-shrink: 0;
  position: relative;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-xl); }
  .mega-menu { width: 520px; }
}

@media (max-width: 768px) {
  :root { --s-section: 64px; }
  .nav__links { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .section-headline { font-size: 28px; }
  .cta-banner { flex-direction: column; align-items: flex-start; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--s-md); }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
}