/* =========================================================
   Sakher — main stylesheet
   Shared by /index.html (ar, rtl) and /en/index.html (en, ltr).
   Uses CSS logical properties so one file serves both directions.
   ========================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  --paper:   #F4EFE6;   /* sand / paper background            */
  --paper-2: #EBE3D5;   /* slightly deeper panel              */
  --ink:     #14213D;   /* deep ink — primary text & chat bg  */
  --ink-2:   #22335A;
  --muted:   #5B6475;
  --line:    #D9CFBE;
  --ember:   #D9480F;   /* "the fire at the peak" — accent    */
  --ember-2: #F08C4B;
  --ok:      #2F7D5B;

  --font-display: "Noto Kufi Arabic", "IBM Plex Sans Arabic", system-ui, sans-serif;
  --font-body:    "IBM Plex Sans Arabic", system-ui, Tahoma, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  --radius: 14px;
  --wrap: 1120px;
}
:lang(en) {
  --font-display: "IBM Plex Sans", system-ui, sans-serif;
  --font-body:    "IBM Plex Sans", system-ui, sans-serif;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ember); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.35; margin: 0; }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }
.label {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ember);
}

/* ---------- 3. Header ---------- */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 22px;
}
.wordmark { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; text-decoration: none; color: var(--ink); }
.wordmark .dot { color: var(--ember); }
.wordmark-latin { font-family: var(--font-mono); font-weight: 500; font-size: .9rem; color: var(--muted); margin-inline-start: 6px; }
.lang-switch {
  font-family: var(--font-mono); font-size: .85rem;
  color: var(--ink); text-decoration: none;
  border-block-end: 1px solid var(--ink);
}

/* ---------- 4. Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 56px;
  align-items: center;
  padding-block: 56px 72px;
}
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); font-weight: 700; margin-block: 14px 20px; }
.hero h1 em { font-style: normal; color: var(--ember); }
.hero .lead { font-size: 1.2rem; color: var(--muted); max-width: 34em; margin-block-end: 30px; }
.actions { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  background: var(--ink); color: var(--paper);
  padding: 13px 26px; border-radius: 999px;
  transition: background .2s;
}
.btn:hover { background: var(--ink-2); }
.pilot-note { font-size: .9rem; color: var(--muted); }

/* ---------- 5. Chat demo ---------- */
.chat {
  background: var(--ink);
  color: var(--paper);
  border-radius: 26px;
  padding: 22px 18px 26px;
  box-shadow: 0 30px 60px -30px rgba(20,33,61,.55);
}
.chat-head {
  display: flex; align-items: center; gap: 10px;
  padding-block-end: 14px; margin-block-end: 16px;
  border-block-end: 1px solid rgba(244,239,230,.12);
  font-size: .95rem;
}
.chat-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ember); color: #fff; font-family: var(--font-display); font-weight: 700;
}
.chat-head small { display: block; color: rgba(244,239,230,.55); font-size: .75rem; line-height: 1.2; }
.chat-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; min-height: 300px; }
.msg {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: .98rem; line-height: 1.7;
}
.msg--user   { align-self: flex-start; background: #2B3F6B; border-start-start-radius: 4px; }
.msg--sakher { align-self: flex-end;   background: var(--paper); color: var(--ink); border-start-end-radius: 4px; }
.msg--sakher strong { color: var(--ember); }
.msg .done { color: var(--ok); font-weight: 700; }

/* JS-driven states (progressive enhancement: without JS all messages are visible) */
.chat.is-animated .msg { opacity: 0; transform: translateY(6px); transition: opacity .35s, transform .35s; }
.chat.is-animated .msg.is-shown { opacity: 1; transform: none; }
.typing { align-self: flex-end; display: none; gap: 4px; padding: 12px 14px; background: var(--paper); border-radius: 16px; }
.typing.is-on { display: inline-flex; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: bounce 1s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%,60%,100% { transform: none; } 30% { transform: translateY(-4px); } }

/* ---------- 6. Verse band ---------- */
.verse {
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  padding-block: 56px;
}
.verse blockquote { margin: 0; font-family: var(--font-display); font-size: clamp(1.3rem, 3vw, 2rem); line-height: 1.9; }
.verse blockquote b { color: var(--ember-2); font-weight: 700; }
.verse cite { display: block; margin-block-start: 10px; font-style: normal; color: rgba(244,239,230,.6); font-size: .95rem; }
.verse .gloss { margin-block-start: 14px; color: rgba(244,239,230,.75); font-size: 1rem; }

/* ---------- 7. Sections ---------- */
.section { padding-block: 72px; border-block-end: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; margin-block-end: 36px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { color: var(--muted); }

/* Principles — editorial numbered rows, not cards */
.principles { list-style: none; margin: 0; padding: 0; counter-reset: p; }
.principles li {
  counter-increment: p;
  display: grid; grid-template-columns: 90px 1fr 2fr; gap: 24px; align-items: baseline;
  padding-block: 26px; border-block-start: 1px solid var(--line);
}
.principles li::before { content: "0" counter(p); font-family: var(--font-mono); color: var(--ember); font-size: 1.1rem; }
.principles h3 { font-size: 1.35rem; }
.principles p { color: var(--muted); }

/* Channels — a single sentence-like row */
.channels { display: flex; flex-wrap: wrap; gap: 12px; }
.channel {
  border: 1.5px solid var(--ink); border-radius: 999px;
  padding: 8px 20px; font-weight: 500;
}

/* Roadmap — now / soon */
.roadmap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-block-start: 3px solid var(--ink); }
.roadmap > div { padding: 22px 0; padding-inline-end: 24px; }
.roadmap .when { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .06em; }
.roadmap .when--now  { color: var(--ok); }
.roadmap .when--soon { color: var(--muted); }
.roadmap h3 { font-size: 1.15rem; margin-block: 6px; }
.roadmap p { color: var(--muted); font-size: .98rem; }

/* Trust + guidelines — two columns of plain text */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.two-col h2 { font-size: 1.5rem; margin-block-end: 18px; }
.plain-list { margin: 0; padding-inline-start: 1.1em; color: var(--muted); }
.plain-list li { margin-block-end: 10px; }
.plain-list li::marker { color: var(--ember); }

/* ---------- 8. Contact + footer ---------- */
.contact { padding-block: 72px; text-align: center; }
.contact h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-block-end: 12px; }
.contact p { color: var(--muted); margin-block-end: 24px; }
.site-footer {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  padding-block: 24px 36px; border-block-start: 1px solid var(--line);
  color: var(--muted); font-size: .9rem;
}
.site-footer a { color: var(--muted); }

/* ---------- 9. Scroll reveal (JS adds .is-visible) ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s, transform .6s; }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 10. Responsive ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-block: 32px 56px; }
  .section-head, .two-col { grid-template-columns: 1fr; gap: 16px; }
  .principles li { grid-template-columns: 50px 1fr; }
  .principles li p { grid-column: 2; }
  .roadmap { grid-template-columns: 1fr; }
  .roadmap > div { border-block-end: 1px solid var(--line); }
}

/* ---------- 11. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}


/* ---------- 12. Revisions 2026-09-24 ---------- */
/* Verses: all white, only the word «صخر» in ember; poet name at the line end */
.verse blockquote { color: var(--paper); }
.verse blockquote b { color: var(--ember-2); }
.verse-line { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: center; gap: 12px 28px; }
.verse-line cite { margin-block-start: 0; }

/* Pilot note in the accent colour */
.pilot-note { color: var(--ember); }

/* Section sub-heading: same face and size as h2, accent colour */
.section-head .sub {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ember);
}

/* Channel marked "coming soon" */
.channel--soon { border-style: dashed; color: var(--muted); border-color: var(--muted); }
.channel--soon small { font-size: .75rem; color: var(--ember); margin-inline-start: 4px; }

/* Roadmap: fit five capabilities */
.roadmap { grid-template-columns: repeat(4, 1fr); row-gap: 8px; }
@media (max-width: 860px) { .roadmap { grid-template-columns: 1fr; } }

/* Footer wordmark, same style as the header */
.wordmark--small { font-size: 1rem; }
.wordmark--small .wordmark-latin { font-size: .8rem; }

/* Composition section intro line */
.section-lead { color: var(--muted); font-size: 1.1rem; max-width: 46em; margin-block-end: 22px; }

/* Hero: "..._" with a blinking underscore, like an old machine waiting for input */
.hero .wait { color: var(--ember); }
.hero .blink { animation: blink-cursor 1s steps(1, end) infinite; }
@keyframes blink-cursor { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* Chat scenario loop: steady height and a soft fade between scenarios */
.chat-list { min-height: 330px; transition: opacity .4s; }
.chat-list.is-fading { opacity: 0; }

/* ---------- 13. Join CTA (end of home page) ---------- */
.join-cta { padding-block: 56px 8px; display: flex; justify-content: center; }

/* ---------- 14. Waitlist page (/join/) ---------- */
.join-page { max-width: 640px; margin-inline: auto; padding: 48px 20px 80px; }
.join-page h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); margin-block-end: 16px; }
.join-page h1 em { font-style: normal; color: var(--ember); }
.join-page .intro { color: var(--muted); font-size: 1.1rem; margin-block-end: 32px; }
.join-page .badge {
  display: inline-block; font-size: .85rem; color: var(--ember);
  border: 1px solid var(--ember); border-radius: 999px; padding: 2px 14px; margin-block-end: 18px;
}
.waitlist { display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 500; }
.field .opt { color: var(--muted); font-weight: 400; font-size: .85rem; }
.field input {
  font: inherit; color: var(--ink);
  background: #FFFDF9; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 12px 14px;
}
.field input:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(20,33,61,.12); }
.field input[type="email"], .field input[type="tel"] { direction: ltr; text-align: start; }
:lang(ar) .field input[type="email"], :lang(ar) .field input[type="tel"] { text-align: right; }
.hp { position: absolute; inset-inline-start: -9999px; }   /* honeypot, hidden from people */
.waitlist .btn { justify-self: start; border: 0; cursor: pointer; font: inherit; font-weight: 700; }
.waitlist .btn:disabled { opacity: .6; cursor: wait; }
.form-note { color: var(--muted); font-size: .9rem; }
.form-status { min-height: 1.5em; font-size: .95rem; color: var(--ok); }
.form-status.is-error { color: var(--ember); }
.success { background: #FFFDF9; border: 1.5px solid var(--line); border-radius: 14px; padding: 28px; }
.success h2 { font-size: 1.5rem; margin-block-end: 8px; }
.success p { color: var(--muted); margin-block-end: 18px; }

/* Second row of agent pills ("coming soon") */
.channels + .channels { margin-block-start: 28px; }


/* ---------- 15. Header nav, footer parent brand, small links (2026-09-24) ---------- */
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a:not(.lang-switch) { color: var(--ink); text-decoration: none; font-weight: 500; font-size: .95rem; }
.site-nav a:not(.lang-switch):hover { color: var(--ember); }
.footer-brand { display: grid; gap: 6px; }
.parent-brand { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--muted); text-decoration: none; }
.parent-brand:hover { color: var(--ember); }
.parent-brand img { opacity: .75; }
.more-link { margin-block-start: 26px; font-size: .95rem; }
.more-link a { text-decoration: none; font-weight: 500; }
.join-contact { margin-block-start: 28px; color: var(--muted); font-size: .95rem; }

/* ---------- 16. Use-cases page ---------- */
.usecases-page { padding-block: 40px 72px; }
.usecases-page h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); margin-block: 10px 12px; }
.usecases-page h1 em { font-style: normal; color: var(--ember); }
.usecases-page .intro { color: var(--muted); font-size: 1.1rem; margin-block-end: 24px; }
.usecase-group { padding-block: 32px; border-block-start: 1px solid var(--line); }
.usecase-group h2 { font-size: 1.5rem; margin-block-end: 18px; }
.usecase-soon { font-size: .8rem; font-weight: 500; color: var(--ember); margin-inline-start: 10px; }
.usecase-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.usecase-card { background: var(--ink); color: var(--paper); border-radius: 18px; padding: 16px 14px 18px; }
.usecase-card header { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-block-end: 12px; }
.usecase-card h3 { font-size: 1rem; color: var(--paper); }
.usecase-tone { font-size: .75rem; color: var(--ember-2, #F08C4B); white-space: nowrap; }
.usecase-chat { min-height: 0; }
.usecase-chat .msg { font-size: .9rem; max-width: 90%; }
@media (max-width: 860px) { .site-nav { gap: 14px; } }

/* Arabic labels must not use letter-spacing or a mono face (breaks letter joining) */
:lang(ar) .label { letter-spacing: 0; font-family: var(--font-body); text-transform: none; font-size: .9rem; }

/* ---------- 17. Privacy page: Arabic (right) · English (left) ---------- */
.privacy-page { padding-block: 32px 72px; }
.pp-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding-block: 26px; border-block-start: 1px solid var(--line); }
.pp-title { border-block-start: 0; padding-block-start: 8px; }
.pp-row > div { min-width: 0; }
.pp-row [lang="en"] { font-family: "IBM Plex Sans", system-ui, sans-serif; }
.pp-row [lang="en"] h1, .pp-row [lang="en"] h2 { font-family: "IBM Plex Sans", system-ui, sans-serif; }
.privacy-page h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.privacy-page h2 { font-size: 1.2rem; margin-block-end: 10px; }
.privacy-page p, .privacy-page li { color: var(--ink); font-size: .98rem; line-height: 1.85; }
.privacy-page p + p { margin-block-start: 10px; }
.privacy-page ul { margin: 6px 0 10px; padding-inline-start: 1.2em; }
.privacy-page li { margin-block-end: 6px; }
.privacy-page li::marker { color: var(--ember); }
.pp-date { color: var(--muted); font-size: .9rem; margin-block-start: 6px; }
.pp-note { color: var(--muted); font-size: .9rem !important; border-inline-start: 3px solid var(--ember); padding-inline-start: 12px; margin-block-start: 12px; }
.pp-google > div { background: #FFFDF9; border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
@media (max-width: 860px) { .pp-row { grid-template-columns: 1fr; gap: 18px; } }
.footer-links { display: flex; gap: 18px; align-items: center; }

/* Header nav: current page = bold, no underline */
.site-nav a[aria-current="page"] { font-weight: 700; text-decoration: none; color: var(--ink); }

/* Header nav: other pages = underlined, normal weight; current page = bold, no underline */
.site-nav a:not([aria-current]), .site-nav a.lang-switch { text-decoration: underline; text-underline-offset: 5px; font-weight: 400; border-block-end: 0; }
.site-nav a[aria-current="page"] { font-weight: 700; text-decoration: none; }

/* Footer links: same states as header (other pages underlined/normal; current bold/no underline) */
.footer-links { flex-wrap: wrap; gap: 8px 18px; }
.footer-links a:not([aria-current]), .footer-links a.lang-switch { color: var(--muted); text-decoration: underline; text-underline-offset: 4px; font-weight: 400; border-block-end: 0; }
.footer-links a[aria-current="page"] { color: var(--ink); font-weight: 700; text-decoration: none; }

/* Footer wordmark links home, looks like text */
.site-footer a.wordmark { color: inherit; text-decoration: none; }

/* 404 page */
.nf-page { padding-block: 40px 72px; display: grid; justify-items: center; gap: 24px; text-align: center; }
.nf-code { font-family: var(--font-mono); font-size: clamp(4rem, 14vw, 7rem); line-height: 1; color: var(--ember); margin: 0; }
.nf-chat { inline-size: min(100%, 420px); text-align: start; }
.nf-chat .chat-list { min-height: 0; }
.nf-actions { justify-content: center; }
.nf-en { color: var(--muted); }

/* Hero CTA */
.hero-actions { margin-block-start: 24px; }

/* Sakher logo mark next to the wordmark */
.wordmark-logo { height: 30px; width: auto; vertical-align: middle; margin-inline-end: 10px; position: relative; top: -2px; }
.wordmark--small .wordmark-logo { height: 18px; margin-inline-end: 6px; top: -1px; }
.site-header .wordmark { white-space: nowrap; }
@media (max-width: 480px) {
  .site-header .wordmark-latin { display: none; }
  .site-header { gap: 10px; }
  .site-header .wordmark { font-size: 1.1rem; }
  .site-header .wordmark-logo { height: 22px; margin-inline-end: 5px; }
  .site-nav { gap: 10px; }
  .site-nav a:not(.lang-switch), .site-nav .lang-switch { font-size: .82rem; }
  .site-nav a { white-space: nowrap; }
}

/* Chat avatar = Sakher icon (ring so the ink icon reads on the ink chat) */
.chat-avatar--logo { display: block; object-fit: cover; box-shadow: 0 0 0 1.5px rgba(244,239,230,.35); }