/* hafiy_dev — site styles
   Compact, layered dark interface in the spirit of 2016–2019 independent developer sites:
   thin borders, hairline separators, rectangular controls, monospace for technical metadata only.
   Accent green is sampled from the hafiy_dev logo (bright green ~#72C936).
   Layout uses CSS logical properties so the Arabic RTL mode needs no override rules. */

:root {
  --bg:          #0a0a0a;  /* page */
  --bg-nav:      #111111;  /* header + footer bars */
  --bg-alt:      #111111;  /* hero + about bands */
  --panel:       #151515;  /* project panel body */
  --panel-head:  #1b1b1b;  /* project panel header strip */
  --panel-soft:  #1f1f1f;  /* inline tag background */

  --border:      #303030;
  --border-soft: #242424;

  --text:        #f2f2f2;
  --text-2:      #a3a3a3;
  --text-3:      #8a8a8a;

  --accent:      #72c936;  /* primary green — logo match */
  --accent-hi:   #8ada4f;  /* hover */
  --accent-deep: #397a1d;  /* borders and rules only, not text */
  --accent-mute: #8abf68;  /* secondary, less prominent accents */
  --accent-soft: rgba(114, 201, 54, 0.13);
  --on-accent:   #0a0a0a;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", "DejaVu Sans Mono", monospace;

  --container: 1000px;
  --gutter: 20px;
  --header-h: 46px;
}

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

[hidden] { display: none !important; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.012em;
}

p { margin: 0; }
dl, dd, dt { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 1px;
}

.ltr {
  direction: ltr;
  unicode-bidi: isolate;
}

.skip-link {
  position: absolute;
  inset-inline-start: 10px;
  inset-block-start: -44px;
  z-index: 50;
  padding: 7px 12px;
  background: var(--panel-head);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  text-decoration: none;
  transition: inset-block-start 0.12s ease;
}

.skip-link:focus { inset-block-start: 8px; }

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

/* ---------- header ---------- */

.header {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  background: var(--bg-nav);
  border-block-start: 2px solid var(--accent);
  border-block-end: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: var(--header-h);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--text);
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.brand__mark--sm { font-size: 13px; font-weight: 600; color: var(--text-2); }

.brand__caret {
  display: inline-block;
  inline-size: 2px;
  block-size: 13px;
  margin-inline-start: 5px;
  background: var(--accent);
}

.nav {
  display: flex;
  gap: 18px;
  margin-inline-end: auto;
}

.nav__link {
  color: var(--text-2);
  font-size: 13.5px;
  text-decoration: none;
  padding-block: 3px;
  border-block-end: 1px solid transparent;
}

.nav__link:hover { color: var(--text); border-block-end-color: var(--accent-mute); }

.nav__link[aria-current="page"] {
  color: var(--accent);
  border-block-end-color: var(--accent);
}

.header__end {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header__github {
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #171717;
}

.header__github:hover { color: var(--accent); border-color: var(--accent-deep); }

/* ---------- language selector ---------- */

.lang {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  background: #171717;
}

.lang__btn {
  appearance: none;
  border: 0;
  background: none;
  color: var(--text-3);
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1;
  padding: 5px 9px;
  cursor: pointer;
  transition: color 0.12s ease, background-color 0.12s ease;
}

.lang__btn + .lang__btn { border-inline-start: 1px solid var(--border); }

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

.lang__btn[aria-pressed="true"],
.lang__btn.is-active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- hero ---------- */

.hero {
  background: var(--bg-alt);
  border-block-end: 1px solid var(--border);
  padding-block: 34px 28px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-block-end: 12px;
}

.hero__title {
  font-size: 27px;
  line-height: 1.28;
  max-width: 26ch;
}

.hero__desc {
  margin-block-start: 10px;
  max-width: 64ch;
  color: var(--text-2);
  font-size: 14.5px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-block-start: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.btn--primary {
  background: var(--accent);
  color: var(--on-accent);
}

.btn--primary:hover { background: var(--accent-hi); }

.btn--ghost {
  border-color: var(--border);
  color: var(--text-2);
  background: #171717;
}

.btn--ghost:hover { border-color: var(--accent-deep); color: var(--text); }

.stack {
  display: flex;
  flex-wrap: wrap;
  margin-block-start: 20px;
  border: 1px solid var(--border-soft);
  border-radius: 2px;
  background: #141414;
  width: fit-content;
  max-width: 100%;
}

.stack__item {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--text-3);
  padding: 6px 12px;
}

.stack__item + .stack__item { border-inline-start: 1px solid var(--border-soft); }

/* ---------- sections ---------- */

.section { padding-block: 30px 34px; }
.section + .section { border-block-start: 1px solid var(--border); }

.section--alt {
  background: var(--bg-alt);
  border-block-start: 1px solid var(--border);
}

.section__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-block-end: 4px;
}

.section__title {
  font-size: 16px;
  line-height: 1.3;
}

.section__title--label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.section__rule {
  flex: 1 1 auto;
  block-size: 1px;
  background: var(--border-soft);
}

.section__count {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}

.section__lede {
  margin-block-end: 16px;
  color: var(--text-2);
  font-size: 13.5px;
  max-width: 70ch;
}

.section__lede--more { margin-block-start: 16px; margin-block-end: 0; }

.section__more {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-decoration: none;
  border-block-end: 1px solid var(--border);
}

.section__more:hover { border-block-end-color: var(--accent); }

/* ---------- project panels (homepage) ---------- */

.projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: border-color 0.12s ease;
}

.project:hover { border-color: var(--accent-deep); }

.project__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  background: var(--panel-head);
  border-block-end: 1px solid var(--border);
  border-start-start-radius: 2px;
  border-start-end-radius: 2px;
}

.project__name {
  font-size: 14.5px;
  font-weight: 600;
}

.project__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--panel-soft);
  white-space: nowrap;
}

.project__body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  padding: 11px 12px 12px;
}

.project__desc {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
}

.project__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  margin-block-start: auto;
  padding-block-start: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.project__meta::before {
  content: "";
  flex: 1 1 100%;
  block-size: 1px;
  margin-block-end: 8px;
  background: var(--border-soft);
}

.project__spec { display: flex; gap: 6px; align-items: baseline; }

.project__key { color: var(--text-3); }

.project__val { color: var(--text-2); }

.project__link {
  margin-inline-start: auto;
  color: var(--accent);
  text-decoration: none;
  border-block-end: 1px solid var(--border);
}

.project__link:hover { border-block-end-color: var(--accent); }

/* ---------- projects page ---------- */

.pagehead {
  background: var(--bg-alt);
  border-block-end: 1px solid var(--border);
  padding-block: 30px 26px;
}

.pagehead__title {
  font-size: 24px;
  line-height: 1.25;
}

.pagehead__desc {
  margin-block-start: 8px;
  color: var(--text-2);
  font-size: 14px;
  max-width: 68ch;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-block-end: 16px;
}

.filter {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 2px;
  transition: color 0.12s ease, border-color 0.12s ease, background-color 0.12s ease;
}

.filter:hover { color: var(--text); border-color: var(--accent-deep); }

.filter[aria-pressed="true"],
.filter.is-active {
  color: var(--accent);
  border-color: var(--accent-deep);
  background: var(--accent-soft);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: border-color 0.12s ease;
}

.card:hover { border-color: var(--accent-deep); }

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  background: var(--panel-head);
  border-block-end: 1px solid var(--border);
  border-start-start-radius: 2px;
  border-start-end-radius: 2px;
}

.card__name {
  font-size: 14.5px;
  font-weight: 600;
}

.card__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--panel-soft);
  white-space: nowrap;
}

.card__body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  padding: 11px 12px 12px;
}

.card__desc {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
}

.card__meta {
  display: grid;
  gap: 4px;
  margin-block-start: auto;
  padding-block-start: 10px;
  border-block-start: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 11px;
}

.card__spec { display: flex; gap: 6px; align-items: baseline; }

.card__key { color: var(--text-3); }

.card__val { color: var(--text-2); }

.card__status--beta { color: var(--accent-mute); }

.card__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-block-start: 12px;
}

.card__link {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-decoration: none;
  border-block-end: 1px solid var(--border);
}

.card__link:hover { border-block-end-color: var(--accent); }

.cards__empty {
  padding: 18px 14px;
  border: 1px dashed var(--border);
  border-radius: 3px;
  color: var(--text-2);
  font-size: 13.5px;
}

/* ---------- about ---------- */

.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px 32px;
  align-items: start;
}

.about__body {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.65;
}

.principles {
  display: grid;
  gap: 12px;
}

.principles__item {
  border-block-start: 1px solid var(--border-soft);
  padding-block-start: 8px;
}

.principles dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.principles dd {
  margin-block-start: 3px;
  color: var(--text-2);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- footer ---------- */

.footer {
  background: var(--bg-nav);
  border-block-start: 1px solid var(--border);
  padding-block: 18px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 24px;
}

.footer__brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-inline-end: auto;
}

.footer__tagline {
  color: var(--text-3);
  font-size: 12.5px;
}

.footer__rights {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-3);
}

.footer__links {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.footer__link {
  color: var(--text-2);
  text-decoration: none;
  border-block-end: 1px solid var(--border-soft);
}

.footer__link:hover { color: var(--accent); border-block-end-color: var(--accent); }

/* ---------- arabic ---------- */

html[lang="ar"] body { line-height: 1.8; }
html[lang="ar"] .hero__title { line-height: 1.45; max-width: 28ch; }
html[lang="ar"] .hero__desc,
html[lang="ar"] .about__body,
html[lang="ar"] .project__desc,
html[lang="ar"] .card__desc,
html[lang="ar"] .pagehead__desc,
html[lang="ar"] .section__lede { font-size: 15px; }
html[lang="ar"] .section__title,
html[lang="ar"] .btn,
html[lang="ar"] .nav__link { font-size: 14.5px; }
html[lang="ar"] .project__tag,
html[lang="ar"] .card__tag,
html[lang="ar"] .principles dt,
html[lang="ar"] .section__count,
html[lang="ar"] .filter { letter-spacing: normal; text-transform: none; font-size: 11.5px; }
html[lang="ar"] .stack__item { font-size: 12.5px; }
html[lang="ar"] .card__meta { font-size: 12px; }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .projects,
  .cards { grid-template-columns: minmax(0, 1fr); }
  .about { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-block: 30px 26px; }
  .hero__title { font-size: 25px; }
  .section { padding-block: 26px 30px; }
  .pagehead { padding-block: 26px 22px; }
  .pagehead__title { font-size: 22px; }
}

@media (max-width: 720px) {
  .header__inner {
    flex-wrap: wrap;
    row-gap: 7px;
    padding-block: 8px;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    margin-inline-end: 0;
    padding-block-start: 7px;
    border-block-start: 1px solid var(--border-soft);
  }
}

@media (max-width: 560px) {
  :root { --gutter: 16px; }

  .hero__title { font-size: 23px; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; }
  .stack { width: 100%; }
  .stack__item { flex: 1 1 auto; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 6px; }
  .footer__brand { margin-inline-end: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}