/* Rotem Levy — portfolio
   Editorial serif + clean sans, warm paper, one iridescent accent used sparingly. */

:root {
  --paper: #f7f4ef;
  --paper-2: #efeae2;
  --card: #fffdf9;
  --ink: #16151a;
  --ink-2: #4a4750;
  --ink-3: #7b7782;
  --line: #ddd7cd;
  --accent: #6b4fd8;
  --iri: linear-gradient(100deg, #c9b6ff 0%, #ffc4b0 50%, #b6ecd6 100%);
  --iri-soft: radial-gradient(40% 50% at 30% 40%, #d9cbff 0%, transparent 70%),
              radial-gradient(35% 45% at 70% 60%, #ffd6c7 0%, transparent 70%),
              radial-gradient(30% 40% at 55% 20%, #c8f1e0 0%, transparent 70%);

  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(88px, 12vw, 160px);
  --radius: 18px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #131216;
    --paper-2: #1b1a20;
    --card: #1e1d23;
    --ink: #f3f0ea;
    --ink-2: #c3bfc9;
    --ink-3: #8f8a97;
    --line: #2f2d35;
    --accent: #b8a6ff;
    --iri-soft: radial-gradient(40% 50% at 30% 40%, #3b2f6e 0%, transparent 70%),
                radial-gradient(35% 45% at 70% 60%, #5a3530 0%, transparent 70%),
                radial-gradient(30% 40% at 55% 20%, #1f4a3c 0%, transparent 70%);
  }
}
:root[data-theme="dark"] {
  --paper: #131216;
  --paper-2: #1b1a20;
  --card: #1e1d23;
  --ink: #f3f0ea;
  --ink-2: #c3bfc9;
  --ink-3: #8f8a97;
  --line: #2f2d35;
  --accent: #b8a6ff;
  --iri-soft: radial-gradient(40% 50% at 30% 40%, #3b2f6e 0%, transparent 70%),
              radial-gradient(35% 45% at 70% 60%, #5a3530 0%, transparent 70%),
              radial-gradient(30% 40% at 55% 20%, #1f4a3c 0%, transparent 70%);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: #d9cbff; color: #16151a; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Type ---------- */
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(44px, 7vw, 92px); line-height: 1; }
h2 { font-size: clamp(36px, 5vw, 64px); line-height: 1.04; }
h3 { font-size: clamp(26px, 3vw, 36px); line-height: 1.1; }
h1 em, h2 em, h3 em { font-style: italic; }
p { margin: 0 0 1em; }
.lede { font-size: clamp(18px, 1.6vw, 21px); color: var(--ink-2); max-width: 40em; }
.label {
  font: 500 12px/1.2 var(--sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 10px;
}
.label::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--iri); }
.muted { color: var(--ink-3); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-family: var(--serif); font-size: 24px; text-decoration: none; letter-spacing: -0.01em; }
.nav { display: flex; gap: 30px; align-items: center; }
.nav a { text-decoration: none; font-size: 15px; color: var(--ink-2); transition: color .2s; }
.nav a:hover { color: var(--ink); }
.nav .btn { color: var(--paper); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; color: var(--ink); cursor: pointer; }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 24px;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s;
  }
  .nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { padding: 14px 0; font-size: 18px; width: 100%; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 18px; width: auto; border: 0; padding: 12px 20px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  font: 500 15px/1 var(--sans); text-decoration: none;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink);
  transition: transform .2s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); }
.btn.small { padding: 10px 16px; font-size: 14px; }
.btn svg { width: 16px; height: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(56px, 9vw, 120px) 0 clamp(64px, 8vw, 110px); }
.hero-grid { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: clamp(32px, 6vw, 88px); align-items: end; }
.hero h1 { margin: 22px 0 28px; max-width: 13em; }
.hero h1 .iri-word {
  background: var(--iri); -webkit-background-clip: text; background-clip: text;
  color: transparent; font-style: italic; padding-right: .06em;
  filter: saturate(1.4) brightness(.78);
}
.hero .lede { margin-bottom: 36px; }
.portrait { position: relative; }
.portrait::before {
  content: ""; position: absolute; inset: -18% -30% -10% -30%;
  background: var(--iri-soft); filter: blur(10px); z-index: -1;
}
.portrait img {
  width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 18%;
  border-radius: 999px 999px var(--radius) var(--radius);
}
.portrait figcaption { margin-top: 14px; font-size: 13px; color: var(--ink-3); }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
  .portrait { order: -1; max-width: 112px; }
  .portrait img { aspect-ratio: 1; border-radius: 50%; }
  .portrait figcaption { display: none; }
  .hero h1 { margin-top: 18px; }
}

/* ---------- Proof strip ---------- */
.proof { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.proof li { padding: 34px 28px 34px 0; }
.proof li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.proof .num { font-family: var(--serif); font-size: clamp(36px, 4vw, 52px); line-height: 1; display: block; margin-bottom: 10px; }
.proof .desc { font-size: 14px; color: var(--ink-2); line-height: 1.45; display: block; max-width: 18em; }
@media (max-width: 900px) {
  .proof ul { grid-template-columns: 1fr 1fr; }
  .proof li:nth-child(3) { padding-left: 0; border-left: 0; }
  .proof li:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 460px) {
  .proof ul { grid-template-columns: 1fr; }
  .proof li, .proof li + li { padding: 24px 0; border-left: 0; }
  .proof li + li { border-top: 1px solid var(--line); }
}

/* ---------- Sections ---------- */
.section { padding: var(--section) 0 0; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head h2 { margin-top: 18px; }
.section-head p { color: var(--ink-2); max-width: 30em; margin: 0; justify-self: end; }
@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; }
  .section-head p { justify-self: start; }
}

/* ---------- Case study cards ---------- */
.cases { display: grid; gap: clamp(56px, 8vw, 104px); }
.case {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(28px, 5vw, 72px);
  align-items: center; text-decoration: none;
}
.case:nth-child(even) .case-media { order: 2; }
.case-media {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16 / 10; background: var(--paper-2);
}
.case-media:not(.duo)::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px var(--line); pointer-events: none; }
.case-media img, .case-media video { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.case:hover .case-media img, .case:hover .case-media video { transform: scale(1.03); }
.case-media.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; background: transparent; }
.case-media.duo video, .case-media.duo img { border-radius: 12px; }
.case .num { font: 500 13px/1 var(--sans); color: var(--ink-3); letter-spacing: .08em; }
.case h3 { margin: 16px 0 14px; }
.case p { color: var(--ink-2); max-width: 30em; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 24px; padding: 0; list-style: none; }
.tags li { font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); }
.more { font-weight: 500; font-size: 15px; display: inline-flex; gap: 8px; align-items: center; border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.more span { transition: transform .2s; }
.case:hover .more span { transform: translateX(4px); }
@media (max-width: 820px) {
  .case { grid-template-columns: 1fr; }
  .case:nth-child(even) .case-media { order: 0; }
}

/* Programmatic "diagram" visual — anonymized, no client data */
.flow {
  width: 100%; height: 100%; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center; gap: 10px; padding: clamp(18px, 3vw, 36px);
  background: var(--iri-soft), var(--paper-2);
}
.flow-col { display: grid; gap: 8px; }
.flow-chip {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 9px 10px; font-size: clamp(11px, 1.1vw, 13px); line-height: 1.2; text-align: center; color: var(--ink-2);
}
.flow-core {
  background: var(--ink); color: var(--paper); border-radius: 14px; padding: 18px 12px;
  text-align: center; font-family: var(--serif); font-size: clamp(16px, 1.8vw, 22px); line-height: 1.1;
}
.flow-core small { display: block; font: 500 10px/1.3 var(--sans); letter-spacing: .1em; text-transform: uppercase; opacity: .7; margin-top: 6px; }
.flow-arrow { color: var(--ink-3); font-size: 18px; }
.flow-cap { font: 500 10px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); text-align: center; margin-bottom: 2px; }

/* Sound toggle on videos */
.sound-wrap { position: relative; width: 100%; height: 100%; }
.sound-btn {
  position: absolute; right: 12px; bottom: 12px; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%; border: 0; padding: 9px; cursor: pointer;
  color: #fff; background: rgba(22, 21, 26, .55);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  opacity: .85; transition: opacity .2s, transform .2s, background .2s;
}
.sound-btn:hover, .sound-btn:focus-visible { opacity: 1; transform: scale(1.06); background: rgba(22, 21, 26, .75); }
.sound-btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.sound-btn[aria-pressed="true"] { opacity: 1; }
.sound-btn svg { width: 100%; height: 100%; display: block; }

/* ---------- Campaign grid ---------- */
.campaigns { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(16px, 2vw, 24px); }
.camp { grid-column: span 4; }
.camp.wide { grid-column: span 8; }
.camp.full { grid-column: span 12; }
.camp.full .camp-media { aspect-ratio: 21 / 9; }
.camp.full .camp-media video { object-position: 50% 35%; }
.camp-media { border-radius: 14px; overflow: hidden; background: var(--paper-2); aspect-ratio: 4 / 5; }
.camp.wide .camp-media { aspect-ratio: auto; height: calc(100% - 0px); }
.camp-media video, .camp-media img { width: 100%; height: 100%; object-fit: cover; }
.camp-body { padding-top: 16px; }
.camp .client { font: 500 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.camp h3 { font-size: clamp(22px, 2.2vw, 28px); margin: 8px 0 8px; }
.camp p { font-size: 15px; color: var(--ink-2); margin: 0; }
.camp.feature { grid-column: span 12; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: clamp(16px, 2vw, 24px); align-items: end; }
.camp.feature .camp-media { aspect-ratio: 4 / 5; }
.camp.feature .camp-body { padding: 0 0 8px; }
.stat-inline { display: inline-block; margin-top: 16px; font-family: var(--serif); font-size: 34px; line-height: 1; }
.stat-inline + small { display: block; font-size: 13px; color: var(--ink-3); margin-top: 6px; }
@media (max-width: 900px) {
  .camp, .camp.wide { grid-column: span 6; }
  .camp.feature { grid-template-columns: 1fr 1fr; }
  .camp.feature .camp-body { grid-column: span 2; order: -1; padding-bottom: 0; }
}
@media (max-width: 560px) {
  .camp, .camp.wide { grid-column: span 12; }
  .camp.full .camp-media { aspect-ratio: 4 / 3; }
  .camp-media { aspect-ratio: 4 / 4.4; }
}

/* ---------- Career evolution ---------- */
.approach-quote { font-family: var(--serif); font-size: clamp(28px, 3.6vw, 46px); line-height: 1.15; max-width: 22em; margin: 0 0 clamp(48px, 6vw, 72px); }
.approach-quote em { font-style: italic; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
.timeline li { padding: 28px 22px 0 0; position: relative; }
.timeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--ink); }
.timeline li:first-child::before { background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 22%, transparent); }
.timeline .year { font-size: 13px; color: var(--ink-3); }
.timeline .co { font-family: var(--serif); font-size: 26px; line-height: 1.1; margin: 6px 0 2px; }
.timeline .role { font-size: 13px; color: var(--ink-3); margin-bottom: 12px; }
.timeline p { font-size: 15px; color: var(--ink-2); }
@media (max-width: 900px) {
  .timeline { grid-template-columns: 1fr; border-top: 0; border-left: 1px solid var(--line); margin-left: 4px; }
  .timeline li { padding: 0 0 32px 28px; }
  .timeline li::before { top: 6px; left: -5px; }
}

/* ---------- Brands ---------- */
.brands { display: flex; flex-wrap: wrap; gap: 14px clamp(28px, 4vw, 56px); align-items: baseline; padding: 36px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.brands span { font-family: var(--serif); font-size: clamp(24px, 3vw, 38px); color: var(--ink-2); white-space: nowrap; }
.brands span:nth-child(3n+2) { font-style: italic; }

/* Logos: one ink colour, sized by eye so they carry equal visual weight */
.logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 36px 48px; padding: 44px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.logos img { width: auto; max-width: 100%; opacity: .72; transition: opacity .2s; }
.logos img:hover { opacity: 1; }
.l-revolve { height: 22px; }
.l-lululemon { height: 28px; }
.l-factory54 { height: 13px; }
.l-seat { height: 46px; }
.l-erroca { height: 14px; }
.l-designit { height: 36px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .logos img { filter: invert(1); } }
:root[data-theme="dark"] .logos img { filter: invert(1); }
@media (max-width: 700px) {
  .logos { display: grid; grid-template-columns: 1fr 1fr; justify-items: center; gap: 40px 24px; }
}

/* ---------- Education ---------- */
.edu { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 24px); }
.edu-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.edu-card .when { font-size: 13px; color: var(--ink-3); }
.edu-card h3 { font-size: 26px; margin: 10px 0 4px; }
.edu-card .school { font-size: 15px; color: var(--ink-2); margin-bottom: 14px; }
.edu-card p { font-size: 14px; color: var(--ink-3); margin: 0; }
@media (max-width: 900px) { .edu { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact { margin-top: var(--section); padding: clamp(72px, 10vw, 128px) 0; position: relative; overflow: hidden; background: var(--paper-2); }
.contact::before { content: ""; position: absolute; inset: -20% -10%; background: var(--iri-soft); opacity: .9; }
.contact .wrap { position: relative; }
.contact h2 { font-size: clamp(44px, 7vw, 96px); max-width: 11em; margin: 20px 0 28px; }
.contact .lede { margin-bottom: 36px; }
.site-footer { padding: 28px 0 36px; font-size: 13px; color: var(--ink-3); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer a { text-decoration: none; }

/* ---------- Case study page ---------- */
.cs-hero { padding: clamp(40px, 7vw, 96px) 0 clamp(36px, 5vw, 60px); }
.back { display: inline-flex; gap: 8px; font-size: 14px; color: var(--ink-3); text-decoration: none; margin-bottom: 36px; }
.back:hover { color: var(--ink); }
.cs-hero h1 { font-size: clamp(40px, 6.4vw, 84px); max-width: 14em; margin: 20px 0 26px; }
.meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); margin-top: clamp(40px, 5vw, 56px); }
.meta div { padding: 20px 20px 0 0; }
.meta dt { font: 500 11px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
.meta dd { margin: 0; font-size: 15px; color: var(--ink); line-height: 1.45; }
@media (max-width: 820px) { .meta { grid-template-columns: 1fr 1fr; } .meta div { padding-bottom: 16px; } }

.cs-media { border-radius: var(--radius); overflow: hidden; background: var(--paper-2); }
.cs-media video, .cs-media img { width: 100%; height: auto; }
.cs-media.flowbox { aspect-ratio: 16 / 8; }
.cs-media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(10px, 1.5vw, 18px); }
.cs-media-grid.four { grid-template-columns: repeat(4, 1fr); }
.cs-media-grid .cs-media { aspect-ratio: 9 / 14; }
.cs-media-grid .cs-media video, .cs-media-grid .cs-media img { height: 100%; object-fit: cover; }
@media (max-width: 700px) { .cs-media-grid.four { grid-template-columns: 1fr 1fr; } .cs-media.flowbox { aspect-ratio: auto; } }
.caption { font-size: 13px; color: var(--ink-3); margin-top: 12px; }

.cs-body { display: grid; grid-template-columns: 240px 1fr; gap: clamp(24px, 5vw, 80px); padding-top: clamp(64px, 8vw, 104px); }
.cs-body + .cs-body { padding-top: clamp(48px, 6vw, 72px); }
.cs-body h2 { font-size: clamp(26px, 2.6vw, 34px); position: sticky; top: 96px; align-self: start; }
.cs-body .content { max-width: 42em; font-size: 18px; }
.cs-body .content p { color: var(--ink-2); }
.cs-body ul.points { list-style: none; margin: 0; padding: 0; }
.cs-body ul.points li { padding: 18px 0; border-top: 1px solid var(--line); color: var(--ink-2); }
.cs-body ul.points li:last-child { border-bottom: 1px solid var(--line); }
.cs-body ul.points strong { color: var(--ink); font-weight: 600; display: block; margin-bottom: 4px; }
@media (max-width: 820px) {
  .cs-body { grid-template-columns: 1fr; gap: 16px; }
  .cs-body h2 { position: static; }
}

.outcome {
  margin-top: clamp(64px, 8vw, 104px); border-radius: var(--radius); padding: clamp(32px, 5vw, 64px);
  background: var(--iri-soft), var(--card); border: 1px solid var(--line);
}
.outcome h2 { font-size: clamp(30px, 3.6vw, 48px); margin: 18px 0 20px; max-width: 18em; }
.outcome p { color: var(--ink-2); max-width: 44em; font-size: 18px; }
.outcome .figures { display: flex; flex-wrap: wrap; gap: 20px 56px; margin-top: 28px; }
.outcome .figures b { display: block; font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 4vw, 48px); line-height: 1; }
.outcome .figures span { font-size: 14px; color: var(--ink-3); }
.note { font-size: 14px; color: var(--ink-3); border-left: 2px solid var(--line); padding-left: 14px; margin-top: 24px; }

.next { display: block; text-decoration: none; margin-top: clamp(72px, 10vw, 128px); padding: 40px 0; border-top: 1px solid var(--line); }
.next .label { margin-bottom: 14px; }
.next h3 { font-size: clamp(32px, 4.4vw, 56px); display: flex; justify-content: space-between; gap: 24px; align-items: baseline; }
.next h3 span { transition: transform .25s; }
.next:hover h3 span { transform: translateX(8px); }

/* ---------- Motion ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0s !important; }
}
.no-js .reveal { opacity: 1; transform: none; }