/* Shared layout + components for all five sites.
   Written with logical properties throughout so that dir="rtl" (the /ar/ pages)
   mirrors correctly without a separate stylesheet. */

/* ---------- Reset ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-block-start: calc(var(--header-height) + var(--space-4));
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-weight: var(--weight-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-md); }

p { margin: 0 0 var(--space-4); }
p:last-child { margin-block-end: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong { font-weight: 650; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.skip-link:focus { inset-block-start: 0; }

/* ---------- Layout ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1rem, 0.6rem + 1.6vw, 2rem);
}

.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--space-9); }
.section--tight { padding-block: var(--space-8); }
.section--alt { background: var(--bg-alt); }

.section__head { max-width: 46rem; margin-block-end: var(--space-7); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__head > *:last-child { margin-block-end: 0; }

.eyebrow {
  display: block;
  margin-block-end: var(--space-3);
  color: var(--accent);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.lead { color: var(--text-muted); font-size: var(--text-lg); }
.muted { color: var(--text-muted); }
.small { font-size: var(--text-sm); }

.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid > * { min-width: 0; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(var(--space-5), 4vw, var(--space-7));
  align-items: start;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: var(--text-sm);
  font-weight: 650;
  text-align: center;
  cursor: pointer;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease),
    border-color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn:active { transform: none; }

.btn--ghost { background: transparent; border-color: var(--border-strong); color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); border-color: var(--accent); color: var(--text); }
.btn--block { display: flex; width: 100%; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  background: var(--bg);
  border-block-end: 1px solid transparent;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.site-header.is-scrolled { border-block-end-color: var(--border); box-shadow: var(--shadow-sm); }

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-display);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand__mark { display: block; inline-size: 26px; block-size: 26px; color: var(--accent); flex: none; }
.brand__name { line-height: 1.1; }

.header__side { display: flex; align-items: center; gap: var(--space-3); }

.nav { display: flex; align-items: center; gap: var(--space-5); }
.nav__list { display: flex; align-items: center; gap: var(--space-5); }

.nav__link {
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: 550;
  transition: color var(--duration) var(--ease);
}

.nav__link:hover { color: var(--text); }

/* Language switcher: plain crawlable links, no JS required */
.langs {
  display: flex;
  align-items: center;
  gap: 1px;
  padding: 3px;
  background: var(--surface-2);
  border-radius: var(--radius-pill);
}

.langs__link {
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.langs__link:hover { color: var(--text); }
.langs__link[aria-current="true"] { background: var(--accent); color: var(--accent-ink); }

.nav-toggle {
  display: none;
  inline-size: 42px;
  block-size: 42px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  inline-size: 18px;
  block-size: 1.5px;
  margin: 4px auto;
  background: var(--text);
}

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

.hero { position: relative; padding-block: clamp(2.5rem, 1.5rem + 4vw, 5rem) var(--space-9); overflow: hidden; }
.hero > .container { position: relative; z-index: 1; }
.hero__inner { max-width: 44rem; }
.hero__title { margin-block-end: var(--space-5); }
.hero__text { max-width: 40rem; font-size: var(--text-lg); color: var(--text-muted); }

.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-6); }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-block-start: var(--space-7);
  padding-block-start: var(--space-5);
  border-block-start: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.hero__meta li { display: flex; align-items: center; gap: var(--space-2); }
.hero__meta svg { inline-size: 18px; block-size: 18px; color: var(--accent); flex: none; }

/* Decorative hero artwork — pure SVG, no network request */
.hero__art {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-end: clamp(-8rem, -6vw, -2rem);
  translate: 0 -50%;
  inline-size: min(46vw, 520px);
  color: var(--accent);
  opacity: 0.14;
  pointer-events: none;
}

/* ---------- Cards ---------- */

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--duration) var(--ease), transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}

.card:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: var(--shadow); }

.card__icon {
  display: grid;
  place-items: center;
  inline-size: 42px;
  block-size: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  flex: none;
}

.card__icon svg { inline-size: 22px; block-size: 22px; }
.card__title { margin: 0; font-size: var(--text-md); }
.card__text { margin: 0; color: var(--text-muted); font-size: var(--text-sm); }

.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-block-start: auto; padding-block-start: var(--space-2); }

.chip {
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: var(--text-xs);
}

/* ---------- Prose ---------- */

.prose { color: var(--text-muted); }
.prose h3 { color: var(--text); margin-block: var(--space-6) var(--space-3); }
.prose h3:first-child { margin-block-start: 0; }
.prose ul { display: grid; gap: var(--space-2); margin-block-end: var(--space-4); }

.prose ul li {
  position: relative;
  padding-inline-start: 1.4rem;
}

.prose ul li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.62em;
  inline-size: 7px;
  block-size: 7px;
  border-radius: 50%;
  background: var(--accent-line);
}

/* ---------- Aside panel ---------- */

.panel {
  padding: var(--space-5);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.panel__title { margin-block-end: var(--space-4); font-size: var(--text-md); }

.panel__list { display: grid; gap: var(--space-3); }

.panel__list li {
  display: grid;
  gap: 2px;
  padding-block-end: var(--space-3);
  border-block-end: 1px solid var(--border);
  font-size: var(--text-sm);
}

.panel__list li:last-child { padding-block-end: 0; border-block-end: 0; }
.panel__list b { color: var(--text); font-weight: 650; }
.panel__list span { color: var(--text-muted); }

/* ---------- Steps ---------- */

.steps { counter-reset: step; }

.step { position: relative; padding-inline-start: 3rem; }

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.15rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
}

.step h3 { font-size: var(--text-md); margin-block-end: var(--space-2); }
.step p { color: var(--text-muted); font-size: var(--text-sm); }

/* ---------- Table ---------- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.table { inline-size: 100%; border-collapse: collapse; font-size: var(--text-sm); }

.table th,
.table td {
  padding: 0.8rem 1rem;
  text-align: start;
  border-block-end: 1px solid var(--border);
  vertical-align: top;
}

.table thead th {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

.table tbody tr:last-child td { border-block-end: 0; }
.table td { color: var(--text-muted); }
.table td:first-child { color: var(--text); font-weight: 600; }

.table-note { margin-block-start: var(--space-3); color: var(--text-faint); font-size: var(--text-xs); }

/* ---------- FAQ ---------- */

.faq { display: grid; gap: var(--space-3); }

.faq__item {
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.faq__item[open] { border-color: var(--border-strong); }

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-weight: 650;
  cursor: pointer;
  list-style: none;
}

.faq__q::-webkit-details-marker { display: none; }

.faq__q::after {
  content: "";
  inline-size: 10px;
  block-size: 10px;
  flex: none;
  border-inline-end: 2px solid var(--accent);
  border-block-end: 2px solid var(--accent);
  rotate: 45deg;
  translate: 0 -3px;
  transition: rotate var(--duration) var(--ease);
}

.faq__item[open] .faq__q::after { rotate: -135deg; translate: 0 2px; }
.faq__a { margin-block-start: var(--space-3); color: var(--text-muted); font-size: var(--text-sm); }
.faq__a p + p { margin-block-start: var(--space-3); }

/* ---------- Acquisition / contact ---------- */

.acquire {
  padding: clamp(var(--space-6), 4vw, var(--space-8));
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.acquire__grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: var(--space-6); align-items: center; }
.acquire h2 { font-size: var(--text-2xl); }
.acquire p { color: var(--text-muted); }
.acquire__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.acquire__mail { font-family: var(--font-mono); font-size: var(--text-sm); word-break: break-all; }

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

.site-footer {
  padding-block: var(--space-7) var(--space-5);
  background: var(--bg-alt);
  border-block-start: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.footer__top { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); gap: var(--space-6); }
.footer__title { margin-block-end: var(--space-3); color: var(--text); font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.footer__list { display: grid; gap: var(--space-2); }
.footer__list a:hover { color: var(--text); text-decoration: underline; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  align-items: center;
  justify-content: space-between;
  margin-block-start: var(--space-6);
  padding-block-start: var(--space-5);
  border-block-start: 1px solid var(--border);
  font-size: var(--text-xs);
}

/* TRENDGO strip — deliberately quiet */
.studio {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  margin-block-start: var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.studio__brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--text); font-weight: 700; letter-spacing: 0.08em; }
.studio__brand svg { inline-size: 16px; block-size: 16px; color: var(--accent); }
.studio__text { flex: 1 1 16rem; }
.studio a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 2px; }
.studio a:hover { color: var(--accent); }

/* ---------- Entrance animation ----------
   Deliberately CSS-only. Nothing on these pages depends on JavaScript to
   become visible: if animations never run, the base style is already the
   final state. */

.reveal { animation: reveal-rise 620ms var(--ease) both; }

@keyframes reveal-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* A short stagger inside a grid or FAQ list, so blocks do not all land at once */
.grid > .reveal:nth-child(2), .faq > .reveal:nth-child(2) { animation-delay: 60ms; }
.grid > .reveal:nth-child(3), .faq > .reveal:nth-child(3) { animation-delay: 120ms; }
.grid > .reveal:nth-child(4), .faq > .reveal:nth-child(4) { animation-delay: 180ms; }
.grid > .reveal:nth-child(5), .faq > .reveal:nth-child(5) { animation-delay: 240ms; }
.grid > .reveal:nth-child(n + 6), .faq > .reveal:nth-child(n + 6) { animation-delay: 300ms; }

/* ---------- RTL adjustments ---------- */

[dir="rtl"] .hero__art { scale: -1 1; }
[dir="rtl"] .faq__q::after { rotate: 135deg; }
[dir="rtl"] .faq__item[open] .faq__q::after { rotate: -135deg; }
[dir="rtl"] .step::before { letter-spacing: 0; }

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

@media (max-width: 1000px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .acquire__grid { grid-template-columns: minmax(0, 1fr); }
  .footer__top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (max-width: 860px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* The compact nav starts at tablet width: brand + links + CTA + language
   switcher stop fitting on one line well before the phone breakpoint. */
@media (max-width: 900px) {
  .nav-toggle { display: block; order: 3; }

  .nav {
    position: absolute;
    inset-inline: 0;
    inset-block-start: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-5) clamp(1rem, 0.6rem + 1.6vw, 2rem);
    background: var(--bg);
    border-block-end: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
  }

  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; align-items: stretch; gap: var(--space-4); }
  .nav__link { font-size: var(--text-base); }
  .site-header { position: sticky; }
  .site-header .container { position: relative; flex-wrap: wrap; }
  .hero__art { display: none; }
}

@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer__top { grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
  .brand { font-size: var(--text-sm); }
  .langs__link { padding: 0.3rem 0.45rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { animation: none; }
}