/* PTRN Business Solutions — one-page site
   Charcoal / warm paper / bronze. Hairlines, not shadows. */

/* ---------- Fonts (self-hosted, SIL OFL) ---------- */

@font-face {
  font-family: "Fraunces";
  src: url("../fonts/fraunces-600-latin.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("../fonts/ibm-plex-sans-var-latin.woff2") format("woff2");
  font-weight: 400 500;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/ibm-plex-sans-arabic-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+08E3-08FF, U+200C-200E, U+2010-2011, U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}

@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/ibm-plex-sans-arabic-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+08E3-08FF, U+200C-200E, U+2010-2011, U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}

@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/ibm-plex-sans-arabic-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+08E3-08FF, U+200C-200E, U+2010-2011, U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}

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

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
img, svg { display: block; max-width: 100%; }
input, button, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
ul[class], ol[class] { list-style: none; padding: 0; }
address { font-style: normal; }

/* ---------- Tokens ---------- */

:root {
  /* charcoal ramp (warm) */
  --ink-950: #171613;
  --ink-900: #1E1C18;
  --ink-800: #262420;
  --ink-700: #33302A;

  /* paper ramp (warm off-white) */
  --paper-0: #F7F4EE;
  --paper-1: #F2EEE6;

  /* text on light */
  --text-1: #211F1B;
  --text-2: #555047;
  --text-3: #6E675C;

  /* text on dark */
  --dtext-1: #F3EFE7;
  --dtext-2: #B7B0A3;

  /* bronze */
  --bronze: #B08D57;        /* decorative + text on dark */
  --bronze-bright: #C6A36E; /* hover on dark */
  --bronze-soft: #D8BE93;   /* subtle text on dark */
  --bronze-deep: #83653A;   /* AA text on light */
  --bronze-deeper: #7A5E36; /* hover on light */

  /* semantic (light default) */
  --bg: var(--paper-0);
  --fg-1: var(--text-1);
  --fg-2: var(--text-2);
  --fg-3: var(--text-3);
  --line: rgba(33, 31, 27, 0.16);
  --line-strong: rgba(33, 31, 27, 0.34);
  --accent-text: var(--bronze-deep);
  --accent-hover: var(--bronze-deeper);
  --focus-ring: var(--bronze-deep);

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-arabic: "IBM Plex Sans Arabic", "Geeza Pro", "Noto Naskh Arabic", "Segoe UI", sans-serif;

  --container: 72rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --nav-h: 4.75rem;
  --nav-h-small: 4rem;
  --section-pad: clamp(4.5rem, 9vw, 7.5rem);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
}

.band-dark {
  --bg: var(--ink-950);
  --fg-1: var(--dtext-1);
  --fg-2: var(--dtext-2);
  --fg-3: var(--dtext-2);
  --line: rgba(243, 239, 231, 0.14);
  --line-strong: rgba(243, 239, 231, 0.32);
  --accent-text: var(--bronze);
  --accent-hover: var(--bronze-bright);
  --focus-ring: var(--bronze-soft);
}

.band-alt { --bg: var(--paper-1); }

/* ---------- Arabic (RTL) page ---------- */

html[lang="ar"] {
  --font-display: "IBM Plex Sans Arabic", "IBM Plex Sans", "Geeza Pro", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans Arabic", "IBM Plex Sans", "Geeza Pro", "Segoe UI", sans-serif;
}

/* Arabic is never letterspaced; ease the tight Latin display metrics */
html[lang="ar"] .eyebrow { letter-spacing: 0; font-weight: 600; }
html[lang="ar"] .hero-title { letter-spacing: 0; line-height: 1.25; }
html[lang="ar"] .sec-title { letter-spacing: 0; line-height: 1.35; }
html[lang="ar"] .hero-lede { line-height: 1.75; }
html[lang="ar"] .btn { letter-spacing: 0; }
html[lang="ar"] .field label,
html[lang="ar"] .detail-label { letter-spacing: 0; font-weight: 600; }
html[lang="ar"] .mobile-menu nav a { line-height: 1.5; }

/* grow-in animations start from the inline-start edge in RTL */
[dir="rtl"] .nav-links a::after { transform-origin: 100% 50%; }
[dir="rtl"] .service::before { transform-origin: 100% 50%; }

.lang-switch {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--dtext-2);
  transition: color 250ms var(--ease-out);
}
.lang-switch:hover { color: var(--bronze-soft); }
html[lang="ar"] .lang-switch { letter-spacing: 0.04em; }

/* ---------- Base ---------- */

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
}

html.no-scroll { overflow: hidden; }

body {
  background: var(--paper-0);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: clamp(0.9375rem, 0.91rem + 0.3vw, 1.0625rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--bronze); color: var(--ink-950); }

a { color: inherit; }

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

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  top: -3rem;
  z-index: 200;
  background: var(--ink-950);
  color: var(--dtext-1);
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top 200ms var(--ease-out);
}
.skip-link:focus { top: 1rem; }

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

.eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.eyebrow-dash {
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--bronze);
  vertical-align: middle;
  margin-inline-end: 0.75rem;
}

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

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

.btn {
  display: inline-block;
  padding: 0.8125rem 1.625rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  text-align: center;
  transition: background-color 250ms var(--ease-out), border-color 250ms var(--ease-out), color 250ms var(--ease-out);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--bronze);
  color: var(--ink-900);
}
.btn-primary:hover { background: var(--bronze-bright); }

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--fg-1);
}
.btn-ghost:hover {
  border-color: var(--bronze);
  color: var(--bronze-soft);
}

.btn-dark {
  background: var(--ink-900);
  color: var(--paper-0);
}
.btn-dark:hover { background: var(--ink-700); }

.btn-outline {
  border-color: var(--line-strong);
  color: var(--fg-1);
}
.btn-outline:hover {
  border-color: var(--bronze-deep);
  color: var(--bronze-deep);
}

.btn-small {
  padding: 0.5rem 1.0625rem;
  font-size: 0.8125rem;
}

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

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  color: var(--dtext-1);
  --focus-ring: var(--bronze-soft);
  transition: background-color 300ms var(--ease-inout), box-shadow 300ms var(--ease-inout);
}

.site-header.is-scrolled {
  background: rgba(23, 22, 19, 0.88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(243, 239, 231, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: var(--nav-h);
  transition: height 300ms var(--ease-inout);
}
.site-header.is-scrolled .nav { height: var(--nav-h-small); }

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}
.wordmark .mark { width: 1.25rem; height: 0.875rem; }
.wordmark-text {
  font-weight: 500;
  font-size: 1.0625rem;
  letter-spacing: 0.3em;
  margin-inline-end: -0.3em;
}

.nav-links {
  display: none;
  gap: 2.25rem;
}
.nav-links a {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--dtext-1);
  padding-block: 0.375rem;
}
.nav-links a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 250ms var(--ease-out);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a[aria-current="true"]::after { transform: scaleX(1); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav .btn-ghost { border-color: rgba(243, 239, 231, 0.32); color: var(--dtext-1); }
.nav .btn-ghost:hover { border-color: var(--bronze); color: var(--bronze-soft); }

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 0;
  padding: 0;
}
.menu-bar {
  width: 18px;
  height: 1.5px;
  background: var(--dtext-1);
  transition: transform 250ms var(--ease-out);
}
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) { transform: translateY(3.25px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- Mobile menu ---------- */

.mobile-menu[hidden] { display: none; }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--ink-950);
  color: var(--dtext-1);
  padding: calc(var(--nav-h) + 1.5rem) var(--gutter) 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  --focus-ring: var(--bronze-soft);
}
.mobile-menu nav a {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.75rem;
  line-height: 1.2;
  text-decoration: none;
  padding-block: 1.125rem;
  border-bottom: 1px solid rgba(243, 239, 231, 0.14);
}
.mobile-menu nav a.mobile-menu-cta { color: var(--bronze); border-bottom: 0; }
.mobile-menu-contact {
  font-size: 0.9375rem;
  line-height: 2;
  color: var(--dtext-2);
}
.mobile-menu-contact a { color: inherit; text-decoration: none; }

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

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  background: var(--ink-950);
  color: var(--dtext-1);
  overflow: hidden;
  padding-block: calc(var(--nav-h) + 2rem) 4rem;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 78% 88%, rgba(176, 141, 87, 0.09), transparent 58%);
  pointer-events: none;
}

.hero-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-lines line { vector-effect: non-scaling-stroke; }

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-eyebrow {
  color: var(--dtext-2);
  animation: rise 800ms var(--ease-out) both;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.5rem, 1.25rem + 5.5vw, 4.75rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin-block: 1.5rem 1.75rem;
  text-wrap: balance;
}
.hero-title .hero-line-text { display: block; }
.hero-title .tick { color: var(--bronze); }
.hero-title .hero-line-text:nth-child(1) { animation: rise 900ms var(--ease-out) 90ms both; }
.hero-title .hero-line-text:nth-child(2) { animation: rise 900ms var(--ease-out) 200ms both; }

.hero-lede {
  max-width: 34rem;
  font-size: clamp(1.0625rem, 1rem + 0.45vw, 1.25rem);
  line-height: 1.55;
  color: var(--dtext-2);
  animation: rise 900ms var(--ease-out) 340ms both;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
  animation: rise 900ms var(--ease-out) 470ms both;
}
.hero .btn-ghost { border-color: rgba(243, 239, 231, 0.32); color: var(--dtext-1); }
.hero .btn-ghost:hover { border-color: var(--bronze); color: var(--bronze-soft); }

@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

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

.section {
  background: var(--bg);
  padding-block: var(--section-pad);
}

.sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid var(--line-strong);
  padding-top: 1rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.sec-index {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--fg-3);
}

.sec-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  text-wrap: balance;
  max-width: 24ch;
}

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

.about-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 4.5rem);
}

.about-copy {
  color: var(--fg-2);
  max-width: 58ch;
}
.about-copy p + p { margin-top: 1.125em; }

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

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.service {
  position: relative;
  background: var(--paper-0);
  border: 1px solid var(--line);
  padding: 1.75rem 1.625rem 1.625rem;
  transition: border-color 250ms var(--ease-out), background-color 250ms var(--ease-out);
}
.service::before {
  content: "";
  position: absolute;
  top: -1px;
  inset-inline: -1px;
  height: 2px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 400ms var(--ease-out);
}
.service:hover { border-color: var(--line-strong); background: #FBF9F4; }
.service:hover::before { transform: scaleX(1); }

.service-num {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--fg-3);
  transition: color 250ms var(--ease-out);
}
.service:hover .service-num { color: var(--bronze-deep); }

.service h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1875rem;
  line-height: 1.3;
  margin-block: 0.875rem 0.5rem;
}

.service p:last-child {
  font-size: 0.9375rem;
  color: var(--fg-2);
}

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

.contact-lede {
  color: var(--fg-2);
  max-width: 52ch;
  margin-top: 1.25rem;
}

.contact-grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.contact-form > * + * { margin-top: 1.5rem; }
.field-row .field + .field { margin-top: 1.5rem; }

.field label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 0.375rem;
}

.field input,
.field textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--fg-3);
  border-radius: 0;
  padding: 0.5rem 0 0.625rem;
  font-size: 1rem;
  color: var(--fg-1);
  transition: border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--fg-3); opacity: 1; }
.field input:focus-visible,
.field textarea:focus-visible {
  outline: none;
  border-bottom-color: var(--bronze-deep);
  box-shadow: 0 1px 0 var(--bronze-deep);
}
.field textarea { resize: vertical; min-height: 6.5rem; }

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-top: 2.25rem;
}

.form-note,
.form-fallback {
  font-size: 0.8125rem;
  color: var(--fg-3);
  margin-top: 1rem;
}
.form-fallback a { color: var(--accent-text); }

.contact-details .detail {
  border-top: 1px solid var(--line);
  padding-block: 1.25rem;
}
.contact-details .detail:last-child { border-bottom: 1px solid var(--line); }

.detail-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 0.25rem;
}
.contact-details a {
  color: var(--fg-1);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}
.contact-details a:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

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

.site-footer {
  background: var(--ink-950);
  color: var(--dtext-1);
  padding-block: 3.5rem 2rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.footer-arabic {
  font-family: var(--font-arabic);
  font-size: 1.0625rem;
  color: var(--dtext-2);
  margin-top: 0.875rem;
}

.footer-contact {
  font-size: 0.9375rem;
  line-height: 2;
}
.footer-contact a { color: var(--dtext-1); text-decoration: none; }
.footer-contact a:hover { color: var(--bronze-soft); }
.footer-dim { color: var(--dtext-2); font-size: 0.8125rem; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  border-top: 1px solid rgba(243, 239, 231, 0.14);
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--dtext-2);
}

/* ---------- Scroll reveals (JS adds .js to <html>) ---------- */

html.js.motion-ok [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
html.js.motion-ok [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js.motion-ok [data-reveal-group] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: calc(var(--i, 0) * 90ms);
}
html.js.motion-ok [data-reveal-group].in > * {
  opacity: 1;
  transform: none;
}

/* ---------- Breakpoints ---------- */

@media (min-width: 40em) {
  .field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .field-row .field + .field { margin-top: 0; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }

  .form-actions { flex-direction: row; align-items: center; }
}

@media (min-width: 56.25em) {
  .nav-links { display: flex; }
  .menu-toggle { display: none; }
  .mobile-menu { display: none !important; }

  .about-grid { grid-template-columns: 5fr 6fr; }

  .services-grid { grid-template-columns: repeat(3, 1fr); }

  .contact-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); }
}

/* Mobile: services become an editorial ledger list */
@media (max-width: 39.9375em) {
  .service {
    background: transparent;
    border: 0;
    border-top: 1px solid var(--line);
    padding: 1.5rem 0;
  }
  .service::before { display: none; }
  .service:hover { background: transparent; border-color: var(--line); }
  .services-grid { gap: 0; }
}

/* ---------- Reduced motion ---------- */

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