/* ============================================================
   Lenin Isabel — Presentation & Communications Design
   Hand-written static site. No framework runtime.
   Design tokens carried over from the live site (kept — they're
   the right call for this audience) with a more editorial,
   asymmetric layout and real motion layered on top.
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&family=Inter:wght@400;500;600&display=swap");

:root {
  --paper: #FAFAFA;
  --ink: #1a1a1a;
  --ink-muted: #6b6b6b;
  --rule: #e5e5e5;
  --accent: #C8102E;
  --accent-foreground: #FAFAFA;

  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);

  --max: 1400px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  opacity: 0;
}

body.is-ready {
  opacity: 1;
  transition: opacity 0.5s var(--ease-soft);
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
}

.display {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.028em;
  line-height: 1.02;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-muted);
}

.rule { border-top: 1px solid var(--rule); }

::selection { background: var(--accent); color: var(--accent-foreground); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .wrap { padding: 0 3rem; }
}

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--rule);
  background: rgba(250, 250, 250, 0.88);
  backdrop-filter: blur(10px);
  transition: padding 0.3s var(--ease-soft);
}
.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 1.75rem;
  padding-bottom: 1.75rem;
  transition: padding 0.3s var(--ease-soft);
}
.site-header.is-scrolled .wrap {
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}
.brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--accent); }
.site-nav { display: flex; align-items: center; gap: 1.25rem; font-size: 0.85rem; flex-wrap: wrap; justify-content: flex-end; }
@media (min-width: 900px) { .site-nav { gap: 2rem; font-size: 0.9rem; } }
.site-nav a { position: relative; padding: 0.2rem 0; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right 0.35s var(--ease);
}
.site-nav a:hover::after,
.site-nav a.is-active::after { right: 0; }
.site-nav a:hover, .site-nav a.is-active { color: var(--accent); }

/* ---------------- Footer ---------------- */
.site-footer { margin-top: 8rem; border-top: 1px solid var(--rule); }
.site-footer .wrap {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  padding: 2.5rem 1.5rem;
  font-size: 0.78rem;
  color: var(--ink-muted);
}
@media (min-width: 768px) {
  .site-footer .wrap { flex-direction: row; align-items: center; padding: 2.5rem 3rem; }
}
.site-footer .links { display: flex; gap: 1.5rem; }
.site-footer a:hover { color: var(--accent); }

/* ---------------- Buttons / links ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  transition: background 0.25s var(--ease-soft), color 0.25s var(--ease-soft);
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn .arrow { display: inline-block; transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

.text-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
}
.text-link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -3px;
  height: 1px;
  background: currentColor;
  transition: right 0.35s var(--ease);
}
.text-link:hover::after { right: 0; }
.text-link .arrow { transition: transform 0.3s var(--ease); }
.text-link:hover .arrow { transform: translateX(3px); }

/* ---------------- Reveal on scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------------- Hero ---------------- */
.hero {
  padding: 6rem 0 7rem;
}
@media (min-width: 768px) {
  .hero { padding: 9rem 0 10rem; }
}
.hero h1 {
  font-size: 2.75rem;
  max-width: 60rem;
}
@media (min-width: 768px) {
  .hero h1 { font-size: 4.4rem; }
}
@media (min-width: 1100px) {
  .hero h1 { font-size: 5rem; }
}
.hero .accent-text { color: var(--accent); }

/* ---------------- Work grid (asymmetric) ---------------- */
.section { border-top: 1px solid var(--rule); padding: 4rem 0; }
@media (min-width: 768px) { .section { padding: 5.5rem 0; } }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem 2rem;
}
.card { display: block; }
.card--feature { grid-column: span 12; }
@media (min-width: 900px) { .card--feature { grid-column: span 7; } }
.card--tall { grid-column: span 12; }
@media (min-width: 900px) { .card--tall { grid-column: span 5; } }
.card--small { grid-column: span 12; }
@media (min-width: 700px) { .card--small { grid-column: span 6; } }
@media (min-width: 900px) { .card--small { grid-column: span 4; } }

.card-media {
  overflow: hidden;
  background: #fff;
  position: relative;
}
.card--feature .card-media, .card--tall .card-media { aspect-ratio: 4 / 3; }
.card--tall .card-media { aspect-ratio: 3 / 4; }
.card--small .card-media { aspect-ratio: 4 / 3; }

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.card:hover .card-media img { transform: scale(1.045); }

.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0) 55%, rgba(26,26,26,0.28) 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease-soft);
}
.card:hover .card-media::after { opacity: 1; }

.card-title {
  font-family: var(--font-serif);
  margin-top: 1.25rem;
  position: relative;
  display: inline-block;
}
.card--feature .card-title { font-size: 1.6rem; }
.card--tall .card-title { font-size: 1.4rem; }
.card--small .card-title { font-size: 1.2rem; }
.card-title::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right 0.4s var(--ease);
}
.card:hover .card-title::after { right: 0; }
.card:hover .card-title { color: var(--accent); }

.card-meta { margin-top: 0.35rem; font-size: 0.75rem; color: var(--ink-muted); }

.card-cta {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.card-cta .arrow { transition: transform 0.3s var(--ease); }
.card:hover .card-cta { color: var(--accent); }
.card:hover .card-cta .arrow { transform: translateX(3px); }

/* ---------------- Intro / about-on-home ---------------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 900px) {
  .intro-grid { grid-template-columns: 8fr 4fr; gap: 4rem; }
}
.intro-text { font-family: var(--font-serif); font-size: 1.5rem; line-height: 1.4; max-width: 42rem; }
@media (min-width: 768px) { .intro-text { font-size: 1.85rem; } }
.portrait-round {
  width: 14rem;
  aspect-ratio: 1;
  border-radius: 999px;
  overflow: hidden;
  margin: 0 auto;
  justify-self: center;
}
@media (min-width: 900px) { .portrait-round { width: 100%; } }
.portrait-round img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 25%; }

/* ---------------- Case study page ---------------- */
.cs-hero {
  position: relative;
  overflow: hidden;
}
.cs-hero img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  will-change: transform;
}
.cs-meta-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule);
}
@media (min-width: 700px) { .cs-meta-bar { grid-template-columns: repeat(4, 1fr); } }
.cs-meta-item .eyebrow { margin-bottom: 0.4rem; }
.cs-meta-item p { font-size: 0.95rem; }

.cs-block { max-width: 46rem; }
.cs-block + .cs-block { margin-top: 3rem; }
.cs-block p { font-size: 1.05rem; line-height: 1.7; color: var(--ink); }
.cs-num { font-family: var(--font-serif); color: var(--accent); font-size: 0.95rem; margin-right: 0.5rem; }

.slide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}
@media (min-width: 700px) { .slide-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; } }
.slide-item figure { margin: 0; }
.slide-item img { width: 100%; border: 1px solid var(--rule); }
.slide-item figcaption { margin-top: 0.75rem; font-size: 0.8rem; font-style: italic; color: var(--ink-muted); }

/* Before/After slider */
.ba-block { margin-top: 4rem; }
.ba-label { font-size: 0.95rem; margin-bottom: 1rem; font-family: var(--font-serif); }
.ba-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border: 1px solid var(--rule);
  cursor: ew-resize;
  user-select: none;
  touch-action: pan-y;
}
.ba-slider img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  user-select: none;
  pointer-events: none;
}
.ba-slider .ba-after { clip-path: inset(0 0 0 50%); }
.ba-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--paper);
  transform: translateX(-1px);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.15);
}
.ba-handle::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 2.6rem; height: 2.6rem;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--ink);
  transform: translate(-50%, -50%);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='16' height='16'><path d='M8 7L3 12l5 5M16 7l5 5-5 5' stroke='%231a1a1a' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: center;
}
.ba-tag {
  position: absolute;
  top: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  background: rgba(26,26,26,0.75);
  color: var(--paper);
}
.ba-tag.before { left: 1rem; }
.ba-tag.after { right: 1rem; }
.ba-caption { margin-top: 1.25rem; font-size: 0.95rem; line-height: 1.7; color: var(--ink-muted); max-width: 48rem; }

.cs-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3rem 0;
  border-top: 1px solid var(--rule);
}

/* ---------------- About page ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 768px) { .about-grid { grid-template-columns: 5fr 7fr; gap: 4rem; } }
.about-portrait { aspect-ratio: 3/4; overflow: hidden; }
.about-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 65% 30%; }
.about-body { font-family: var(--font-serif); font-size: 1.2rem; line-height: 1.6; }
@media (min-width: 768px) { .about-body { font-size: 1.4rem; } }
.about-body p + p { margin-top: 1.25rem; }
.list-plain { list-style: none; margin: 0; padding: 0; }
.list-plain li { padding: 0.4rem 0; }
.list-bullet { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.list-bullet li { display: flex; gap: 1rem; align-items: flex-start; }
.list-bullet .tick { display: inline-block; width: 1rem; height: 1px; background: var(--accent); margin-top: 0.65rem; flex-shrink: 0; }
.two-col { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 640px) { .two-col { grid-template-columns: 1fr 1fr; } }

/* ---------------- Contact page ---------------- */
.contact-hero h1 { font-size: 3rem; }
@media (min-width: 768px) { .contact-hero h1 { font-size: 4.2rem; } }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 700px) { .contact-grid { grid-template-columns: repeat(3, 1fr); } }
.contact-item .eyebrow { margin-bottom: 0.6rem; }
.contact-item a, .contact-item p { font-family: var(--font-serif); font-size: 1.3rem; }
.contact-item a:hover { color: var(--accent); }

/* ---------------- Digital & Marketing section ---------------- */
.dm-groups { display: flex; flex-direction: column; gap: 3.5rem; }
.dm-group-title { font-size: 1.1rem; margin-bottom: 1.5rem; }
.dm-items { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 700px) { .dm-items { grid-template-columns: 1fr 1fr; } }
.dm-item { padding: 1.5rem 0; border-top: 1px solid var(--rule); }
.dm-thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; margin-bottom: 1rem; background: #fff; }
.dm-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.dm-item:hover .dm-thumb img { transform: scale(1.04); }
.dm-count {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(26, 26, 26, 0.78);
  color: var(--paper);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
}
.dm-count svg { width: 12px; height: 12px; stroke: var(--paper); }
.dm-item h4 { font-size: 1.05rem; margin-bottom: 0.25rem; }
.dm-item .dm-sub { font-size: 0.78rem; color: var(--ink-muted); margin-bottom: 0.6rem; }
.dm-item p { font-size: 0.92rem; line-height: 1.6; color: var(--ink); margin: 0; }
.dm-intro { max-width: 42rem; font-size: 1.05rem; line-height: 1.7; color: var(--ink-muted); margin-bottom: 3rem; }

/* ---------------- Work index page ---------------- */
.work-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem 2rem;
}
@media (min-width: 700px) { .work-index-grid { grid-template-columns: 1fr 1fr; } }

/* ---------------- Card index number ---------------- */
.card-index {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  color: var(--ink-muted);
  display: block;
  margin-bottom: 0.5rem;
}

/* ---------------- Hover-swap card image ---------------- */
.card-media { position: relative; }
.card-media .img-a, .card-media .img-b {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.6s var(--ease), transform 0.7s var(--ease);
}
.card-media .img-b { opacity: 0; }
.card:hover .card-media .img-a { opacity: 0; }
.card:hover .card-media .img-b { opacity: 1; transform: scale(1.045); }

/* ---------------- Expand-to-lightbox button on cards ---------------- */
.card-expand {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 2;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  background: rgba(250, 250, 250, 0.9);
  backdrop-filter: blur(6px);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s var(--ease-soft), transform 0.3s var(--ease-soft), background 0.2s;
}
.card:hover .card-expand { opacity: 1; transform: translateY(0); }
.card-expand:hover { background: var(--ink); }
.card-expand:hover svg { stroke: var(--paper); }
.card-expand svg { width: 16px; height: 16px; stroke: var(--ink); transition: stroke 0.2s; }

/* ---------------- Cursor-follow pill ---------------- */
.cursor-pill {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  pointer-events: none;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.8);
  transition: opacity 0.25s var(--ease-soft), transform 0.25s var(--ease-soft);
  white-space: nowrap;
}
.cursor-pill.is-visible { opacity: 1; transform: translate(-50%, -50%) scale(1); }
@media (hover: none) { .cursor-pill { display: none; } }

/* ---------------- Marquee ticker ---------------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 1.1rem 0;
  white-space: nowrap;
}
.marquee-track {
  display: inline-flex;
  gap: 2.5rem;
  animation: marquee 32s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
  gap: 2.5rem;
}
.marquee-item::after { content: "\2014"; color: var(--rule); margin-left: 2.5rem; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------- Dark contrast band ---------------- */
.dark-band {
  background: var(--ink);
  color: var(--paper);
}
.dark-band .eyebrow { color: rgba(250, 250, 250, 0.55); }
.dark-band h2 {
  font-size: 2rem;
  max-width: 34rem;
}
@media (min-width: 768px) { .dark-band h2 { font-size: 2.75rem; } }
.dark-band .btn { border-color: var(--paper); background: transparent; color: var(--paper); }
.dark-band .btn:hover { background: var(--paper); color: var(--ink); }
.dark-band-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: flex-start;
  justify-content: space-between;
  padding: 4.5rem 0;
}
@media (min-width: 768px) { .dark-band-inner { flex-direction: row; align-items: center; padding: 6rem 0; } }

/* ---------------- Lightbox ---------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(10, 10, 10, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox.is-open { display: flex; }
.lightbox-figure { max-width: 92vw; max-height: 86vh; display: flex; flex-direction: column; gap: 1rem; align-items: center; overflow: hidden; }
.lightbox-figure img {
  max-width: 92vw;
  max-height: 76vh;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.3s var(--ease), transform 0.15s var(--ease-soft);
  cursor: zoom-in;
}
.lightbox-figure img.is-shown { opacity: 1; }
.lightbox.is-zoomed .lightbox-figure img { cursor: zoom-out; }
.lightbox.is-zoomed .lightbox-figure { overflow: visible; }
.lightbox-caption { color: rgba(250, 250, 250, 0.75); font-size: 0.85rem; text-align: center; max-width: 44rem; }
.lightbox-hint { color: rgba(250, 250, 250, 0.4); font-size: 0.7rem; text-align: center; }
.lightbox.is-zoomed .lightbox-prev, .lightbox.is-zoomed .lightbox-next { opacity: 0.25; pointer-events: none; }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: fixed;
  background: rgba(250, 250, 250, 0.1);
  border: none;
  color: var(--paper);
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { background: rgba(250, 250, 250, 0.22); }
.lightbox-close { top: 1.5rem; right: 1.5rem; }
.lightbox-prev { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-prev svg, .lightbox-next svg, .lightbox-close svg { width: 18px; height: 18px; stroke: var(--paper); }
.lightbox-counter { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%); color: rgba(250,250,250,0.5); font-size: 0.75rem; letter-spacing: 0.08em; }

/* Make interior images (slides, dm thumbs) look clickable */
.slide-item img, .dm-thumb img, .cs-hero img { cursor: zoom-in; }