/* =============================================================================
   MYK BUILDCON — Brand System
   Navy + Orange | Angular geometric | Industrial/architectural
   ============================================================================= */

:root {
  /* Brand palette (sampled from the logo and design file) */
  --navy:        #143464;
  --navy-deep:   #0a1f3f;
  --navy-soft:   #1e4180;
  --orange:      #f59024;
  --orange-deep: #d97706;
  --bone:        #f4f1ec;
  --paper:       #ebe6df;
  --ink:         #0a1428;
  --line:        #1a2845;
  --muted:       #6b7689;
  --white:       #ffffff;

  /* Type */
  --display: "Archivo", "Bebas Neue", system-ui, sans-serif;
  --body:    "Inter Tight", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  /* Spacing */
  --gutter: clamp(1.25rem, 3vw, 2.5rem);

  /* Easings */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.7, 0, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  font-weight: 400;
  background: var(--bone);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* =============================================================================
   TYPOGRAPHY
   ============================================================================= */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--navy);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--orange);
}

.display-xl { font-size: clamp(3rem, 9vw, 8rem); }
.display-lg { font-size: clamp(2.5rem, 6vw, 5rem); }
.display-md { font-size: clamp(2rem, 4vw, 3.5rem); }

/* =============================================================================
   GEOMETRY — triangular accents echoing the logo
   ============================================================================= */

.tri {
  position: absolute;
  width: 0; height: 0;
  pointer-events: none;
}
.tri-navy-tl { border-style: solid; border-width: 0 0 220px 220px; border-color: transparent transparent var(--navy) transparent; }
.tri-orange-tr { border-style: solid; border-width: 0 220px 220px 0; border-color: transparent var(--orange) transparent transparent; }
.tri-navy-br { border-style: solid; border-width: 220px 220px 0 0; border-color: var(--navy) transparent transparent transparent; }
.tri-orange-bl { border-style: solid; border-width: 220px 0 0 220px; border-color: transparent transparent transparent var(--orange); }

/* =============================================================================
   NAV
   ============================================================================= */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.1rem var(--gutter);
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(244, 241, 236, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, padding 0.3s;
}
.nav.scrolled { border-bottom-color: rgba(20, 52, 100, 0.1); padding-top: 0.7rem; padding-bottom: 0.7rem; }

.nav-logo { display: flex; align-items: center; gap: 0.7rem; }
.nav-logo img { height: 38px; width: auto; }

.nav-links {
  display: flex; gap: 2.2rem; align-items: center;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.2s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--orange);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--orange); }

.nav-cta {
  background: var(--navy);
  color: var(--bone);
  padding: 0.7rem 1.3rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: var(--orange); transform: translateX(2px); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-burger span {
  width: 26px; height: 2px;
  background: var(--navy);
  transition: transform 0.3s, opacity 0.3s;
}

/* =============================================================================
   BUTTONS
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.6rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 2px solid transparent;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.btn-primary { background: var(--orange); color: var(--white); }
.btn-primary:hover { background: var(--navy); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--orange); }

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

.btn-arrow { transition: transform 0.3s var(--ease-out); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* =============================================================================
   CONTAINERS
   ============================================================================= */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section { position: relative; }

/* =============================================================================
   FADE / SLIDE — subtle text animations
   ============================================================================= */

[data-anim] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
[data-anim].in {
  opacity: 1;
  transform: none;
}
[data-anim="fade"] { transform: none; }
[data-anim="slide-r"] { transform: translateX(-40px); }
[data-anim="slide-r"].in { transform: none; }

[data-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-stagger].in > * { opacity: 1; transform: none; }
[data-stagger].in > *:nth-child(1) { transition-delay: 0.05s; }
[data-stagger].in > *:nth-child(2) { transition-delay: 0.15s; }
[data-stagger].in > *:nth-child(3) { transition-delay: 0.25s; }
[data-stagger].in > *:nth-child(4) { transition-delay: 0.35s; }
[data-stagger].in > *:nth-child(5) { transition-delay: 0.45s; }
[data-stagger].in > *:nth-child(6) { transition-delay: 0.55s; }
[data-stagger].in > *:nth-child(7) { transition-delay: 0.6s; }
[data-stagger].in > *:nth-child(8) { transition-delay: 0.65s; }
[data-stagger].in > *:nth-child(n+9) { transition-delay: 0.7s; }

/* =============================================================================
   PROJECT REVEAL — dramatic clip-path
   ============================================================================= */

.reveal-img {
  overflow: hidden;
  position: relative;
}
.reveal-img img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.18);
  transition: transform 1.6s var(--ease-out);
  clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  transition: clip-path 1.4s var(--ease-in-out), transform 1.6s var(--ease-out);
}
.reveal-img.in img {
  transform: scale(1.0);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* =============================================================================
   FOOTER
   ============================================================================= */

.footer {
  background: var(--navy-deep);
  color: var(--bone);
  padding: 5rem var(--gutter) 2rem;
  position: relative;
  overflow: hidden;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
  position: relative;
  z-index: 2;
}
.footer h4 {
  color: var(--orange);
  font-size: 0.78rem;
  font-family: var(--mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  font-weight: 500;
}
.footer-brand p {
  color: rgba(244, 241, 236, 0.7);
  max-width: 32ch;
  margin-top: 1rem;
  font-size: 0.95rem;
}
.footer-brand img { height: 48px; filter: brightness(0) invert(1); opacity: 0.95; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 0.6rem; font-size: 0.92rem; color: rgba(244, 241, 236, 0.75); }
.footer a:hover { color: var(--orange); }
.footer-bot {
  border-top: 1px solid rgba(244, 241, 236, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: rgba(244, 241, 236, 0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  z-index: 2;
}
.footer-tri {
  position: absolute;
  width: 0; height: 0;
  border-style: solid;
}
.footer-tri-1 {
  bottom: -1px; right: -1px;
  border-width: 0 360px 360px 0;
  border-color: transparent var(--orange) transparent transparent;
  opacity: 0.07;
}
.footer-tri-2 {
  top: -1px; left: -1px;
  border-width: 240px 240px 0 0;
  border-color: var(--orange) transparent transparent transparent;
  opacity: 0.05;
}

/* =============================================================================
   RESPONSIVE
   ============================================================================= */

@media (max-width: 880px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
  .nav-mobile {
    position: fixed;
    top: 0; right: 0;
    width: 100%; height: 100vh;
    background: var(--navy);
    color: var(--bone);
    z-index: 99;
    padding: 6rem var(--gutter) 2rem;
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-in-out);
    display: flex; flex-direction: column; gap: 1.5rem;
  }
  .nav-mobile.open { transform: none; }
  .nav-mobile a {
    font-family: var(--display);
    font-size: 2.5rem;
    color: var(--bone);
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  .nav-mobile a:hover, .nav-mobile a.active { color: var(--orange); }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bot { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  [data-anim], [data-stagger] > *, .reveal-img img { opacity: 1 !important; transform: none !important; clip-path: none !important; }
}