/* ============================================
   MCode Ventures — Final Design System
   Built on the brand's own palette
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter+Tight:wght@300;400;450;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Brand colors — extracted from logo */
  --navy: #084060;
  --navy-deep: #052E45;
  --navy-soft: #0F4D70;
  --navy-tint: #1A5C7F;

  --crimson: #E80838;
  --crimson-deep: #B8062C;
  --crimson-soft: #FF1F4F;

  --paper: #EEF2F4;      /* cool bluish off-white */
  --paper-warm: #E4EAEC; /* deeper variant */
  --paper-cool: #F4F7F9; /* lighter variant */
  --white: #F8F8F8;

  --ink: #051E2D;        /* deep navy-black for type on light */
  --ink-soft: #1A3D52;
  --line: #C9D4DA;       /* cool grey-blue line */
  --line-soft: #DBE2E6;
  --mute: #5A7180;
  --mute-soft: #8A9DA9;

  /* Type */
  --display: 'Instrument Sans', -apple-system, sans-serif;
  --sans: 'Inter Tight', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Scale */
  --container: 1280px;
  --gutter: 32px;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  font-size: 16px;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ============================================
   Layout
   ============================================ */

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ============================================
   Logo
   ============================================ */

.logo-img {
  height: 28px;
  width: auto;
  display: block;
  transition: opacity 0.2s ease;
}

.logo-link { display: inline-block; }
.logo-link:hover .logo-img { opacity: 0.85; }

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(238, 242, 244, 0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--line);
  background: rgba(238, 242, 244, 0.95);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 450;
  color: var(--ink-soft);
  position: relative;
  transition: color 0.2s ease;
  letter-spacing: -0.005em;
}

.nav-links a:hover { color: var(--crimson); }
.nav-links a.active { color: var(--crimson); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0; right: 0;
  height: 2px;
  background: var(--crimson);
}

.nav-cta {
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  background: var(--navy);
  color: var(--white);
  border-radius: 100px;
  transition: background 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.005em;
}

.nav-cta:hover { background: var(--crimson); transform: translateY(-1px); }

.nav-cta::after { content: '→'; transition: transform 0.2s ease; }
.nav-cta:hover::after { transform: translateX(3px); }

.menu-toggle { display: none; }

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 100px;
  transition: all 0.25s ease;
  cursor: pointer;
  letter-spacing: -0.005em;
  font-family: var(--sans);
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

.btn-primary:hover { background: var(--crimson); transform: translateY(-2px); }

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

.btn-ghost:hover { border-color: var(--navy); background: var(--navy); color: var(--white); }

.btn-light {
  background: var(--white);
  color: var(--navy);
}
.btn-light:hover { background: var(--crimson); color: var(--white); transform: translateY(-2px); }

.btn-light-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-light-ghost:hover { border-color: var(--white); background: var(--white); color: var(--navy); }

.btn .arrow { transition: transform 0.25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================
   Typography
   ============================================ */

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--crimson);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--crimson);
  display: inline-block;
}

.eyebrow.eyebrow-mute {
  color: var(--mute);
}
.eyebrow.eyebrow-mute::before {
  background: var(--mute);
}

.eyebrow.eyebrow-light {
  color: var(--crimson-soft);
}

.h-display {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.98;
  font-size: clamp(44px, 7.5vw, 104px);
}

.h-section {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(34px, 4.6vw, 60px);
  letter-spacing: -0.03em;
  line-height: 1.04;
}

.lede {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-soft);
  font-weight: 400;
}

/* Accent dot — echoing the logo's center mark */
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--crimson);
  position: relative;
  top: -0.05em;
  margin: 0 0.05em;
}

/* ============================================
   Sections
   ============================================ */

section { padding: 120px 0; }
section.tight { padding: 80px 0; }

/* ============================================
   Footer
   ============================================ */

footer {
  background: var(--navy-deep);
  color: var(--paper);
  padding: 120px 0 40px;
  position: relative;
  overflow: hidden;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 80px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  position: relative;
  z-index: 2;
}

.footer-brand .logo-img { height: 32px; margin-bottom: 24px; }

.footer-brand p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--mute-soft);
  max-width: 340px;
}

.footer-col h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--crimson-soft);
  font-weight: 500;
  margin-bottom: 20px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a {
  font-size: 14px;
  color: var(--paper);
  opacity: 0.85;
  transition: opacity 0.2s ease, color 0.2s ease;
}
.footer-col a:hover { color: var(--crimson-soft); opacity: 1; }

.footer-base {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--mute-soft);
  font-family: var(--mono);
  position: relative;
  z-index: 2;
}

/* ============================================
   IMAGE TREATMENTS — apply navy/duotone wash so stock reads on-brand
   ============================================ */

.img-wash {
  position: relative;
  overflow: hidden;
  background: var(--navy-deep);
}

.img-wash img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* Cool navy duotone for editorial cohesion */
  filter: grayscale(0.4) contrast(1.05) brightness(0.92);
  transition: transform 0.8s cubic-bezier(0.2, 0.6, 0.2, 1), filter 0.6s ease;
}

.img-wash:hover img { transform: scale(1.03); filter: grayscale(0.2) contrast(1.05) brightness(0.95); }

.img-wash::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 64, 96, 0.08) 0%, rgba(8, 64, 96, 0.25) 100%),
    linear-gradient(135deg, rgba(8, 64, 96, 0.18) 0%, transparent 60%);
  pointer-events: none;
  mix-blend-mode: multiply;
}

.img-wash-strong::after {
  background: linear-gradient(180deg, rgba(5, 46, 69, 0.45) 0%, rgba(5, 46, 69, 0.7) 100%);
  mix-blend-mode: normal;
}

/* ============================================
   Reveal animations
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.6, 0.2, 1);
}

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

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 880px) {
  :root { --gutter: 20px; }

  .nav-links, .nav-cta { display: none; }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
  }
  .menu-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--navy);
    transition: all 0.3s ease;
  }
  .nav.open .menu-toggle span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav.open .menu-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .menu-toggle span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper);
    padding: 30px var(--gutter);
    gap: 24px;
    border-bottom: 1px solid var(--line);
  }

  section { padding: 80px 0; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-brand { grid-column: span 2; }
  .footer-base { flex-direction: column; gap: 16px; text-align: center; }
}