/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #000000;
  --surface: #161616;
  --border:  #2a2a2a;
  --text:    #FFFFFF;
  --muted:   #888888;
  --dim:     #3a3a3a;
  --radius:  10px;
  --radius-btn: 6px;
  --nav-h:   56px;
  --font-sans: 'Google Sans', 'Atkinson Hyperlegible', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;
  --pad: 2.5rem;
  --t: 0.28s ease;
  --ts: 0.7s cubic-bezier(0.16,1,0.3,1);
}

html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); overflow-x: hidden; line-height: 1.6; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
em { font-style: italic; }
button { font-family: var(--font-sans); }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pad);
  background: rgba(11,11,11,0.0);
  border-bottom: 1px solid transparent;
  transition: background var(--t), border-color var(--t);
}
.nav.scrolled {
  background: rgba(11,11,11,0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}
.nav.solid {
  background: rgba(11,11,11,0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}
.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav__logo img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  border: 1.5px solid rgba(255,255,255,0.15);
  transition: border-color var(--t);
}
.nav__logo:hover img {
  border-color: rgba(255,255,255,0.4);
}
.nav__links { display: flex; gap: 2rem; align-items: center; }
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.75rem; font-weight: 400;
  letter-spacing: 0.08em; color: var(--muted);
  text-transform: uppercase;
  transition: color var(--t);
}
.nav__links a:hover,
.nav__links a.active { color: var(--text); }

.nav__cta {
  font-family: var(--font-mono) !important;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  color: var(--bg) !important;
  background: var(--text);
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-btn);
  transition: background var(--t) !important;
  white-space: nowrap;
}
.nav__cta:hover { background: #e0e0e0 !important; }

/* ============================================
   SHARED BUTTONS
   ============================================ */
.btn-primary {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bg); background: var(--text);
  padding: 0.9rem 2rem; border-radius: var(--radius-btn);
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: none; cursor: pointer;
  transition: background var(--t), transform var(--t);
}
.btn-primary:hover { background: #e2e2e2; transform: translateY(-1px); }

.btn-outline {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text); background: transparent;
  border: 1px solid var(--border);
  padding: 0.85rem 2rem; border-radius: var(--radius-btn);
  cursor: pointer; display: inline-flex; align-items: center; gap: 0.5rem;
  transition: background var(--t), border-color var(--t), color var(--t);
}
.btn-outline:hover { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn-outline:disabled { opacity: 0.25; cursor: default; pointer-events: none; }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--bg); position: relative; overflow: hidden; }

.footer__cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2rem;
  padding: 5rem var(--pad) 5rem calc(50% + 1rem);
  border-bottom: 1px solid var(--border);
}
.footer__cta-left {
  display: contents;
}
.footer__cta-small {
  font-size: clamp(1.4rem, 2.8vw, 2.8125rem);
  font-weight: 400; line-height: 1.35;
  color: var(--text); letter-spacing: -0.02em;
}
.footer__cta-right {
  display: contents;
}
.footer__cta-text {
  font-size: clamp(1.4rem, 2.8vw, 2.8125rem);
  font-weight: 400; line-height: 1.35;
  color: var(--text); letter-spacing: -0.02em;
  width: 100%;
  text-wrap: pretty;
  text-wrap: balance;
}
.footer__btn {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bg); background: var(--text);
  padding: 0.9rem 2rem; border-radius: var(--radius-btn);
  display: inline-flex; align-items: center;
  transition: background var(--t), transform var(--t);
  border: none; cursor: pointer;
}
.footer__btn:hover { background: #e2e2e2; transform: translateY(-1px); }

.footer__bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem var(--pad);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.footer__contact a {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.1em;
  color: var(--text); transition: color var(--t);
  text-transform: uppercase;
}
.footer__contact a:hover { color: var(--muted); }
.footer__socials { display: flex; gap: 1.8rem; }
.footer__socials a {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.07em;
  color: var(--text); transition: color var(--t);
  text-transform: uppercase;
}
.footer__socials a:hover { color: var(--muted); }

.footer__wordmark {
  display: block;
  font-weight: 700;
  font-family: var(--font-sans);
  color: rgba(255,255,255,0.08);
  line-height: 1;
  user-select: none;
  /* Scale to fill full viewport width. 
     "DESIGNCHIEF" is 11 chars. At letter-spacing -0.04em,
     each char ≈ 0.58em wide. So total ≈ 6.38em.
     To fill 100vw: font-size = 100vw / 6.38 ≈ 15.67vw.
     We use 15.5vw to stay just inside. */
  font-size: 15.5vw;
  letter-spacing: -0.04em;
  white-space: nowrap;
  overflow: hidden;
  width: 100%;
  padding: 0;
  margin: 0;
}
.footer__legal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem var(--pad);
  border-top: 1px solid var(--border);
}
.footer__copyright,
.footer__tagline {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
  text-transform: none;
}

/* ============================================
   FOOTER — no CTA variant (work, case study, about)
   ============================================ */
.footer--minimal .footer__cta { display: none; }

/* ============================================
   PROJECT CARD (shared between index + work)
   ============================================ */
.project-item { cursor: pointer; padding: 0 var(--pad) 2.5rem; }
.project-item__card {
  position: relative; overflow: hidden;
  border-radius: 3px; background: var(--surface);
  margin-top: 1.2rem; aspect-ratio: 1/1;
}
.project-item__img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-item__card-empty {
  margin-top: 1.2rem; background: var(--surface);
  border-radius: 3px; aspect-ratio: 1/1;
}
.project-item__bar {
  display: flex; align-items: baseline;
  justify-content: space-between;
  padding-top: 1rem; gap: 2rem;
}
.project-item__name {
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  font-weight: 700; letter-spacing: 0.01em; color: var(--text);
}
.project-item__tags {
  font-size: 0.78rem; font-weight: 400;
  color: var(--muted); text-align: right; flex-shrink: 0;
}

/* ============================================
   LOADING & SKELETONS
   ============================================ */
.loading-state {
  padding: 4rem var(--pad);
  font-size: 0.72rem; color: var(--dim);
  text-align: center; letter-spacing: 0.06em;
}

/* Shimmer skeleton base */
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, #2a2a2a 25%, #383838 50%, #2a2a2a 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  display: block;
  min-height: 1em;
}
/* Skeleton card container matches project-item layout */
.skeleton-card { padding: 0 0 var(--pad); }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-up {
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }


/* ============================================
   HAMBURGER MENU
   ============================================ */
.nav__hamburger {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; cursor: pointer;
  background: none; border: none; padding: 4px; z-index: 1001;
}
.nav__hamburger span {
  display: block; width: 100%; height: 1.5px;
  background: var(--text); border-radius: 2px;
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1), opacity 0.3s ease;
  transform-origin: center;
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__drawer {
  position: fixed; inset: 0; z-index: 999;
  background: #000000;
  display: flex; flex-direction: column;
  justify-content: flex-start;
  padding: calc(var(--nav-h) + 3rem) var(--pad) 3rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16,1,0.3,1);
}
.nav__drawer.open { opacity: 1; pointer-events: all; }
.nav__drawer-links { display: flex; flex-direction: column; gap: 1.5rem; }
.nav__drawer-links a {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 4vw, 1.4rem);
  font-weight: 700; letter-spacing: 0.06em;
  color: var(--muted); text-transform: uppercase;
  text-decoration: none; display: inline-block;
  transform: translateY(20px); opacity: 0;
  transition: color 0.2s ease, transform 0.5s cubic-bezier(0.16,1,0.3,1), opacity 0.4s ease;
}
.nav__drawer.open .nav__drawer-links a { transform: translateY(0); opacity: 1; }
.nav__drawer.open .nav__drawer-links a:nth-child(1) { transition-delay: 0.05s; }
.nav__drawer.open .nav__drawer-links a:nth-child(2) { transition-delay: 0.1s; }
.nav__drawer.open .nav__drawer-links a:nth-child(3) { transition-delay: 0.15s; }
.nav__drawer-links a:hover, .nav__drawer-links a.active { color: var(--text); }
.nav__drawer-cta {
  margin-top: 2.5rem; opacity: 0; transform: translateY(20px);
  transition: opacity 0.4s ease 0.2s, transform 0.5s cubic-bezier(0.16,1,0.3,1) 0.2s;
}
.nav__drawer.open .nav__drawer-cta { opacity: 1; transform: translateY(0); }
.nav__drawer-cta a {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bg); background: var(--text);
  padding: 0.55rem 1.2rem; border-radius: var(--radius-btn);
  display: inline-flex; align-items: center;
}
/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  :root { --pad: 1.5rem; }
  .footer__cta { padding: 4rem var(--pad); }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer__socials { flex-wrap: wrap; gap: 0.8rem 1.5rem; }
}
@media (max-width: 600px) {
  :root { --pad: 1.2rem; }
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .footer__cta { padding: 3rem var(--pad); }
  .footer__cta-small { font-size: clamp(1.3rem, 5vw, 1.6rem); }
  .footer__socials { gap: 0.8rem 1rem; }
  .project-item__bar { flex-direction: column; gap: 0.3rem; }
  .footer__legal { padding: 0.9rem var(--pad); }
  .footer__copyright, .footer__tagline { font-size: 0.78rem; }
  .project-item__tags { text-align: left; font-size: 0.9rem; }
}