/* ---------------------------------------------------------------
   Aviv Levin — Smart Software Development
   Editorial, asymmetric, ink-on-paper. No gradients, no pills.
--------------------------------------------------------------- */

:root {
  --ink: #191813;
  --ink-soft: #43413a;
  --paper: #f2efe7;
  --paper-dim: #e9e5da;
  --accent: #e04a17;
  --line: rgba(25, 24, 19, 0.16);
  --line-inverse: rgba(242, 239, 231, 0.2);
  --font-display: "Space Grotesk", "Helvetica Neue", sans-serif;
  --font-body: "Inter", -apple-system, "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

/* ------------------------------------------------ Accessibility helpers */

.skip-link {
  position: absolute;
  top: -3rem;
  left: 0.75rem;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  text-decoration: none;
  border: 2px solid var(--accent);
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 0.75rem;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; font-weight: 700; }

section { scroll-margin-top: 5.5rem; }

/* ------------------------------------------------ Navigation */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding: 1.1rem clamp(1.25rem, 4vw, 3.5rem);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), padding 0.35s var(--ease);
}

.nav.is-scrolled {
  background: var(--ink);
  border-bottom-color: var(--line-inverse);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.nav__brand img { height: 30px; width: auto; }

.nav__links {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin-left: auto;
}

.nav__links a {
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-bottom: 3px;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: left bottom;
  transition: background-size 0.3s var(--ease);
}

.nav__links a:hover,
.nav__links a:focus-visible {
  background-size: 100% 2px;
}

.nav__toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--line-inverse);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}

/* ------------------------------------------------ Hero */

.hero {
  background: var(--ink);
  color: var(--paper);
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 7rem clamp(1.25rem, 4vw, 3.5rem) 4rem;
}

.hero__grid {
  position: relative;
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
}

.hero__meta {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 239, 231, 0.6);
  margin-bottom: 3rem;
}

.hero__title {
  font-size: clamp(2.6rem, 7.5vw, 6.2rem);
  letter-spacing: -0.02em;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.hero__line { display: block; }
.hero__line--shift { margin-left: clamp(2rem, 10vw, 9rem); }
.hero__line--far { margin-left: clamp(4rem, 20vw, 18rem); }
.hero__line--accent { color: var(--accent); }

.hero__rule {
  position: absolute;
  top: -1rem;
  right: 0;
  width: 1px;
  height: clamp(6rem, 22vh, 14rem);
  background: var(--line-inverse);
}

.hero__cue {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-top: 4rem;
  border: 1px solid var(--line-inverse);
  color: var(--paper);
  text-decoration: none;
  font-size: 1.2rem;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.hero__cue-arrow {
  transition: transform 0.3s var(--ease);
}

.hero__cue:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}

.hero__cue:hover .hero__cue-arrow { transform: translateY(4px); }

/* hero entrance */
.hero-in {
  opacity: 0;
  transform: translateY(26px);
  animation: rise 0.9s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}

@keyframes rise {
  to { opacity: 1; transform: none; }
}

/* ------------------------------------------------ Sections */

.section {
  padding: clamp(4.5rem, 10vw, 8rem) clamp(1.25rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line);
}

.section__grid {
  max-width: 72rem;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) 2.4fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.section__label, .section__body { min-width: 0; }

/* alternate: label column on the right */
.section__grid--right {
  grid-template-columns: 2.4fr minmax(12rem, 1fr);
}

.section__grid--right .section__label { order: 2; text-align: right; }
.section__grid--right .section__body { order: 1; }

.section__index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.75rem;
}

.section__index::after {
  content: "";
  display: inline-block;
  width: 2.4rem;
  height: 1px;
  background: var(--accent);
  vertical-align: middle;
  margin-left: 0.6rem;
}

.section__grid--right .section__index::after { margin: 0 0 0 0.6rem; }

.section__title {
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  letter-spacing: -0.015em;
}

/* ------------------------------------------------ Trusted */

.section--trusted { border-top: none; }

.trusted__note {
  margin-top: 1.1rem;
  margin-left: auto;
  max-width: 22ch;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.clients__label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.clients__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.clients__grid + .clients__label { margin-top: 2.6rem; }

.clients__grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.client {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 6.75rem;
  padding: 1.25rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.clients__grid--lead .client { min-height: 10.5rem; }
.clients__grid--lead .client img { max-width: 86%; }

/* cascade the reveal across each row, left to right */
.client:nth-child(4n + 2) { --d: 0.08s; }
.client:nth-child(4n + 3) { --d: 0.16s; }
.client:nth-child(4n + 4) { --d: 0.24s; }

.client img {
  height: var(--h, 40px);
  width: auto;
  max-width: 84%;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.72;
  mix-blend-mode: multiply;
  transition: filter 0.4s var(--ease), opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

/* accent rule sweeps in from the left, same gesture as the nav links */
.client::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}

.client__name {
  position: absolute;
  left: 0.9rem;
  bottom: 0.7rem;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.client:hover img {
  filter: none;
  opacity: 1;
  transform: translateY(-4px);
}

.client:hover::after { transform: scaleX(1); }

.client:hover .client__name {
  opacity: 1;
  transform: none;
}

.clients__more {
  margin-top: 1.25rem;
  text-align: right;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ------------------------------------------------ About */

.about {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.lede { font-size: 1.35rem; line-height: 1.5; font-family: var(--font-display); }

.about__narrative p + p { margin-top: 1.4rem; }

.about__kicker {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.about__kicker em { color: var(--accent); font-style: normal; }

.about__strengths {
  border: 1px solid var(--ink);
  padding: 1.8rem 1.8rem 2rem;
  margin-top: 3.5rem; /* deliberate stagger against the narrative column */
  background: var(--paper-dim);
}

.about__strengths h3 {
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.about__strengths ul { list-style: none; }

.about__strengths li {
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.98rem;
}

.about__strengths li::before {
  content: "→";
  color: var(--accent);
  margin-right: 0.6rem;
}

/* ------------------------------------------------ Services */

.services {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.service {
  border: 1px solid var(--line);
  padding: 2rem 2rem 2.2rem;
  background: var(--paper);
  position: relative;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.service--offset { transform: translateY(2.5rem); }

.service:hover {
  border-color: var(--ink);
  box-shadow: 6px 6px 0 0 var(--ink);
  transform: translate(-2px, -2px);
}

.service--offset:hover { transform: translate(-2px, calc(2.5rem - 2px)); }

.service__num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  display: block;
  margin-bottom: 1rem;
}

.service h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.service ul { list-style: none; }

.service li {
  font-size: 0.96rem;
  color: var(--ink-soft);
  padding: 0.45rem 0 0.45rem 1.1rem;
  position: relative;
}

.service li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 0.45rem;
  height: 1px;
  background: var(--accent);
}

/* ------------------------------------------------ Contact */

.section--contact {
  background: var(--ink);
  color: var(--paper);
  border-top: none;
}

.section--contact .section__title { color: var(--paper); }

.contact__pitch {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.25;
  margin-bottom: 2.8rem;
  max-width: 34ch;
}

.accent { color: var(--accent); }

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* Sharp-cornered buttons with a fill sweep — no pills. */
.btn {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1rem 1.5rem;
  border: 1px solid var(--paper);
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  overflow: hidden;
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
  z-index: 0;
}

.btn:hover::before,
.btn:focus-visible::before { transform: scaleX(1); }

.btn:hover,
.btn:focus-visible { color: var(--ink); border-color: var(--accent); }

.btn__label, .btn__tag { position: relative; z-index: 1; }

.btn__tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
}

/* ------------------------------------------------ Footer */

.footer {
  background: var(--ink);
  color: rgba(242, 239, 231, 0.55);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  padding: 1.5rem clamp(1.25rem, 4vw, 3.5rem) 2rem;
  border-top: 1px solid var(--line-inverse);
  font-size: 0.85rem;
}

.footer__links a {
  color: rgba(242, 239, 231, 0.55);
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--paper);
}

.footer__top {
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.8rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.footer__top:hover { border-bottom-color: var(--accent); }

/* ------------------------------------------------ Scroll reveals */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0s);
}

.reveal.in-view {
  opacity: 1;
  transform: none;
}

/* keep the offset stagger after reveal */
.service--offset.reveal { transform: translateY(calc(2.5rem + 24px)); }
.service--offset.reveal.in-view { transform: translateY(2.5rem); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-in { animation: none; opacity: 1; transform: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .service--offset.reveal { transform: translateY(2.5rem); }
}

/* ------------------------------------------------ Responsive */

@media (max-width: 900px) {
  .section__grid,
  .section__grid--right {
    grid-template-columns: 1fr;
  }

  .section__grid--right .section__label { order: 0; text-align: left; }
  .section__grid--right .section__body { order: 1; }

  .about { grid-template-columns: 1fr; }
  .about__strengths { margin-top: 0.5rem; margin-left: clamp(0rem, 6vw, 3rem); }

  .services { grid-template-columns: 1fr; }
  .service--offset { transform: none; margin-left: clamp(1rem, 8vw, 3rem); }
  .service--offset:hover { transform: translate(-2px, -2px); }
  .service--offset.reveal { transform: translateY(24px); }
  .service--offset.reveal.in-view { transform: none; }
}

@media (max-width: 900px) {
  .trusted__note { margin-left: 0; max-width: 34ch; }
  .clients__grid { grid-template-columns: repeat(3, 1fr); }
  .client:nth-child(n) { --d: 0s; }
  .client:nth-child(3n + 2) { --d: 0.08s; }
  .client:nth-child(3n + 3) { --d: 0.16s; }
  .clients__grid--lead { grid-template-columns: repeat(2, 1fr); }
  .clients__grid--lead .client:nth-child(n) { --d: 0s; }
  .clients__grid--lead .client:nth-child(2n + 2) { --d: 0.08s; }
}

@media (max-width: 560px) {
  .clients__grid:not(.clients__grid--lead) { grid-template-columns: repeat(2, 1fr); }
  .clients__grid--lead .client { min-height: 8rem; }
  .client { min-height: 5.75rem; padding: 1rem; }
  .client img { height: calc(var(--h, 40px) * 0.78); }
  .clients__more { text-align: left; }
}

@media (max-width: 720px) {
  .nav { flex-wrap: wrap; }

  .nav__toggle { display: block; }

  .nav__links {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0.9rem;
    padding: 1.2rem 0 0.6rem;
  }

  .nav.is-open { background: var(--ink); border-bottom-color: var(--line-inverse); }
  .nav.is-open .nav__links { display: flex; }

  .hero__line--shift { margin-left: 1.5rem; }
  .hero__line--far { margin-left: 3rem; }

  .contact__actions { flex-direction: column; align-items: flex-start; }
}