/* ============================================================
   ZINZI MBOLA PORTFOLIO — v4
   Palette: Slate #40484d · Steel #748389 · Warm #a5a49d
            White #ffffff · Orange #dd614a (accent only)
   Type: Instrument Serif (headings) · DM Sans (body)
   ============================================================ */

:root {
  --slate:      #40484d;
  --steel:      #748389;
  --warm:       #a5a49d;
  --orange:     #dd614a;
  --white:      #ffffff;
  --off:        #f8f7f6;
  --off2:       #f1efec;
  --border:     #e4e1dc;
  --dark:       #2e3538;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans:  'DM Sans', sans-serif;
  --ease:       cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--slate);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ─────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 4rem;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s var(--ease);
}
.nav.scrolled { box-shadow: 0 1px 20px rgba(64,72,77,0.07); }

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--slate);
  letter-spacing: 0.04em;
}
.nav-links { list-style: none; display: flex; gap: 2.5rem; }
.nav-links a {
  font-size: 0.75rem; font-weight: 400;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--steel); text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--slate); }
.nav-cta {
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--slate); text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.55rem 1.25rem;
  transition: all 0.2s;
}
.nav-cta:hover { border-color: var(--slate); background: var(--slate); color: var(--white); }

/* ── HERO ────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 9rem 4rem 0;
  overflow: hidden;
}

/* faint ZM watermark */
.hero::after {
  content: 'ZM';
  position: absolute;
  right: 4rem;
  bottom: 4rem;
  font-family: var(--font-serif);
  font-size: 38vw;
  font-weight: 400;
  color: rgba(64,72,77,0.045);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.04em;
  z-index: 0;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s forwards;
  position: relative; z-index: 1;
}
.hero-eyebrow-role {
  font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--warm);
  display: flex; align-items: center; gap: 0.75rem;
}
.hero-eyebrow-role::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--orange);
  flex-shrink: 0;
}
.hero-eyebrow-loc {
  font-size: 0.7rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--warm);
}

.hero-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative; z-index: 1;
}

.hero-name-block {
  opacity: 0;
  animation: fadeUp 0.9s 0.25s forwards;
}
.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(5.5rem, 10.5vw, 13rem);
  font-weight: 400;
  line-height: 0.88;
  color: var(--slate);
  letter-spacing: -0.02em;
}
.hero-name em {
  font-style: italic;
  color: var(--orange);
  display: block;
}
.hero-tagline {
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--steel);
  max-width: 50ch;
  margin-top: 1.75rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.42s forwards;
}

/* scroll indicator */
.hero-scroll {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.55s forwards;
}
.scroll-line {
  display: block;
  width: 40px; height: 1px;
  background: var(--orange);
}
.scroll-text {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--warm);
}

/* brands bottom bar — label left, tags right */
.hero-brands-sidebar {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-top: 3rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.68s forwards;
}
.brands-sidebar-label {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  flex-shrink: 0;
  padding-top: 0.3rem;
}
.brands-sidebar-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.brands-sidebar-list li {
  font-size: 0.84rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--slate);
  border: 1px solid var(--border);
  padding: 0.35rem 1rem;
  transition: all 0.2s;
  cursor: default;
}
.brands-sidebar-list li:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(221,97,74,0.04);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── TICKER ──────────────────────────────────── */
.ticker {
  overflow: hidden;
  background: var(--orange);
  padding: 0.95rem 0;
}
.ticker-track {
  display: flex;
  gap: 2.5rem;
  white-space: nowrap;
  animation: ticker 26s linear infinite;
}
.ticker-track span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  flex-shrink: 0;
}
.t-dot { color: rgba(255,255,255,0.4) !important; }

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── SHARED SECTION STYLES ───────────────────── */
.section { padding: 7rem 4rem; }
.section--off { background: var(--off); }

.eyebrow {
  display: block;
  font-size: 0.65rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--orange); margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4vw, 4rem);
  font-weight: 400; line-height: 1.05;
  color: var(--slate); letter-spacing: -0.01em;
}
.section-title em { font-style: italic; color: var(--steel); }
.section-title--sm { font-size: clamp(1.6rem, 2.5vw, 2.2rem); }
.section-title--light { color: var(--white); }
.section-title--light em { color: rgba(255,255,255,0.5); }

.body-text {
  font-size: 0.97rem; font-weight: 300;
  line-height: 1.85; color: var(--steel);
  margin-bottom: 1.25rem;
  max-width: 52ch;
}

.btn-outline {
  display: inline-block;
  margin-top: 2rem;
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--slate); text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.7rem 1.5rem;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: var(--slate); background: var(--slate); color: var(--white); }

/* ── ABOUT ───────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7rem;
  align-items: start;
}

/* dark section text overrides */
.section--dark { background: var(--dark); }
.section--dark .eyebrow { color: var(--orange); }
.section--dark .section-title { color: var(--white); }
.section--dark .section-title em { color: rgba(255,255,255,0.45); }
.section--dark .body-text { color: rgba(165,164,157,0.8); }
.section--dark .a-stat-n { color: var(--white); }
.section--dark .a-stat-l { color: var(--warm); }
.section--dark .about-stats { border-top-color: rgba(255,255,255,0.1); }
.section--dark .btn-outline { color: rgba(255,255,255,0.8); border-color: rgba(255,255,255,0.2); }
.section--dark .btn-outline:hover { background: var(--white); color: var(--dark); border-color: var(--white); }
.section--dark .t-co { color: var(--white); }
.section--dark .t-role { color: var(--steel); }
.section--dark .t-yr { color: var(--warm); }
.section--dark .t-brands { color: var(--warm); opacity: 0.6; }
.section--dark .t-line { background: rgba(255,255,255,0.1); }
.section--dark .tools-block { border-top-color: rgba(255,255,255,0.1); }
.section--dark .tools-label { color: var(--warm); }
.section--dark .tools-pills span { color: rgba(165,164,157,0.7); border-color: rgba(255,255,255,0.12); }

/* stats row */
.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.a-stat { display: flex; flex-direction: column; gap: 0.25rem; }
.a-stat-n {
  font-family: var(--font-serif);
  font-size: 2.4rem; font-weight: 400;
  color: var(--slate); line-height: 1;
}
.a-stat-n small { font-size: 1.2rem; color: var(--orange); }
.a-stat-l {
  font-size: 0.62rem; font-weight: 400;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--warm);
}

/* timeline */
.timeline { display: flex; flex-direction: column; margin-bottom: 2.5rem; }
.t-item { display: flex; gap: 1.25rem; }
.t-aside {
  display: flex; flex-direction: column;
  align-items: center; flex-shrink: 0; width: 12px;
}
.t-dot {
  width: 11px; height: 11px; flex-shrink: 0;
  border: 2px solid var(--orange);
  border-radius: 50%; background: transparent;
  margin-top: 4px;
}
.t-line {
  flex: 1; width: 1px;
  background: var(--border);
  margin: 5px 0; min-height: 18px;
}
.t-body {
  display: flex; flex-direction: column;
  gap: 0.18rem; padding-bottom: 1.75rem;
}
.t-co {
  font-family: var(--font-serif);
  font-size: 1.1rem; color: var(--slate); line-height: 1.1;
}
.t-role { font-size: 0.8rem; color: var(--steel); font-weight: 300; }
.t-yr { font-size: 0.67rem; letter-spacing: 0.08em; color: var(--warm); margin-top: 0.1rem; }
.t-brands { font-size: 0.67rem; letter-spacing: 0.06em; color: var(--warm); opacity: 0.7; margin-top: 0.25rem; }

/* tools */
.tools-block { padding-top: 2rem; border-top: 1px solid var(--border); }
.tools-label {
  font-size: 0.62rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--warm);
  display: block; margin-bottom: 0.85rem;
}
.tools-pills { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tools-pills span {
  font-size: 0.7rem; font-weight: 300;
  color: var(--steel);
  border: 1px solid var(--border);
  padding: 0.3rem 0.8rem;
}

/* ── WORK / FILTER ───────────────────────────── */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 1.25rem;
}

.filter-tabs { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.filter-btn {
  font-family: var(--font-sans);
  font-size: 0.7rem; font-weight: 400;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  background: transparent; color: var(--steel);
  transition: all 0.2s; cursor: pointer;
}
.filter-btn:hover { border-color: var(--steel); color: var(--slate); }
.filter-btn.active { background: var(--slate); color: var(--white); border-color: var(--slate); }

/* ── PORTFOLIO GRID ──────────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}
.p-card {
  background: var(--white);
  overflow: hidden;
  cursor: pointer;
  transition: background 0.2s;
}
.p-card:hover { background: var(--off2); }
.p-card.hidden { display: none; }

.p-thumb {
  position: relative; overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--off2);
}
.p-thumb img,
.p-thumb video {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  display: block;
  transition: transform 0.5s var(--ease);
}
.p-card:hover .p-thumb img,
.p-card:hover .p-thumb video { transform: scale(1.04); }

.p-hover {
  position: absolute; inset: 0;
  background: rgba(46,53,56,0.55);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.25s;
}
.p-card:hover .p-hover { opacity: 1; }
.p-hover span {
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.5);
  padding: 0.5rem 1.2rem;
}
.p-hover--play span {
  font-size: 1.6rem;
  border: none; padding: 0;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
}

.p-meta {
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 0.75rem;
  row-gap: 0.12rem;
}
.p-brand {
  font-size: 0.62rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--warm); grid-column: 1;
}
.p-title {
  font-family: var(--font-serif);
  font-size: 1rem; font-weight: 400;
  color: var(--slate); grid-column: 1; line-height: 1.2;
}
.p-cat-tag {
  font-size: 0.58rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--orange);
  grid-column: 2; grid-row: 1 / span 2;
  align-self: center; white-space: nowrap;
}

/* ── LIGHTBOXES ──────────────────────────────── */
.lightbox, .vid-lightbox {
  position: fixed; inset: 0;
  background: rgba(46,53,56,0.96);
  z-index: 500;
  display: none; align-items: center; justify-content: center;
  padding: 2rem;
  backdrop-filter: blur(8px);
}
.lightbox.active, .vid-lightbox.active { display: flex; }

.lb-inner {
  display: flex; flex-direction: column;
  align-items: center; gap: 1rem;
  max-width: 90vw; max-height: 90vh;
}
.lb-inner img {
  max-width: 100%; max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.vid-inner {
  display: flex; flex-direction: column;
  align-items: center; gap: 1rem;
  max-width: 90vw;
}
.vid-inner video {
  max-width: 100%; max-height: 80vh;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.lb-cap {
  font-size: 0.7rem; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4); text-align: center;
}
.lb-close {
  position: fixed; top: 1.5rem; right: 2rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); font-size: 1rem;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s; z-index: 10;
}
.lb-close:hover { background: var(--orange); border-color: var(--orange); }
.lb-prev, .lb-next {
  position: fixed; top: 50%; transform: translateY(-50%);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); font-size: 1rem;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s;
}
.lb-prev { left: 1.5rem; }
.lb-next { right: 1.5rem; }
.lb-prev:hover, .lb-next:hover {
  border-color: var(--white); background: rgba(255,255,255,0.08);
}

/* ── CONTACT ─────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7rem; align-items: start;
}
.contact-right { display: flex; flex-direction: column; }
.c-row {
  display: flex; justify-content: space-between;
  align-items: baseline; padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none; transition: all 0.2s;
}
.c-row:first-child { border-top: 1px solid var(--border); }
.c-row:hover .c-val { color: var(--orange); }
.c-label {
  font-size: 0.62rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--warm);
}
.c-val {
  font-family: var(--font-serif);
  font-size: 1.15rem; color: var(--slate);
  transition: color 0.2s;
}
.c-arr { font-style: normal; }

/* ── FOOTER ──────────────────────────────────── */
.footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 4rem;
  border-top: 1px solid var(--border);
  background: var(--off);
}
.foot-l {
  font-family: var(--font-serif);
  font-size: 0.95rem; color: var(--slate);
}
.foot-r {
  font-size: 0.62rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--warm);
}

/* ── REVEAL ──────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 1024px) {
  .nav { padding: 1.1rem 2rem; }
  .hero { padding: 8rem 2rem 0; }
  .about-grid { grid-template-columns: 1fr; gap: 4rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 5rem 2rem; }
  .footer { padding: 1.25rem 2rem; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 7rem 1.5rem 0; }
  .hero-eyebrow { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
  .section { padding: 4rem 1.5rem; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .about-stats { gap: 1.5rem; }
  .footer { flex-direction: column; gap: 0.4rem; padding: 1.25rem 1.5rem; }
}