/* ==========================================================================
   Alzib Group - one-page site
   Palette + type sourced from the brand card: black, gold, silver/white.
   Layout uses CSS logical properties so the RTL (Farsi) page flips for free.
   ========================================================================== */

:root {
  --black:      #0a0a0c;
  --black-2:    #101014;
  --panel:      #14141a;
  --panel-2:    #1b1b22;
  --line:       rgba(201, 150, 47, 0.18);
  --gold:       #c9962f;
  --gold-soft:  #d9ad4d;
  --gold-light: #eccd7e;
  --gold-grad:  linear-gradient(135deg, #a9781f 0%, #eccd7e 45%, #c9962f 78%, #a9781f 100%);
  --fg:         #f4f1ea;
  --fg-muted:   #b3ada0;
  --fg-dim:     #8b867b;
  --ff-serif:   "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --ff-sans:    "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --maxw:       1160px;
  --radius:     14px;
  --shadow:     0 24px 60px -24px rgba(0, 0, 0, 0.75);
  --ease:       cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--black);
  color: var(--fg);
  font-family: var(--ff-sans);
  font-size: 17px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Farsi page swaps in a Persian face for everything, keeps the serif for
   Latin brand marks only (applied inline where needed). */
html[lang="fa"] body { font-family: "Vazirmatn", var(--ff-sans); }

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-family: var(--ff-serif); font-weight: 600; line-height: 1.12; margin: 0; }
html[lang="fa"] h1, html[lang="fa"] h2, html[lang="fa"] h3 { font-family: "Vazirmatn", var(--ff-serif); font-weight: 700; }

::selection { background: var(--gold); color: #1a1305; }

/* Utility ---------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(20px, 5vw, 40px); }
.eyebrow {
  font-family: var(--ff-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin: 0;
}
html[lang="fa"] .eyebrow { letter-spacing: 0.12em; }
.gold-text {
  background: var(--gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.95em 1.9em;
  border-radius: 999px;
  font-family: var(--ff-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 1.15em; height: 1.15em; flex: none; }
.btn-gold {
  background: var(--gold-grad);
  color: #17110333;
  color: #1a1305;
  box-shadow: 0 14px 30px -12px rgba(201, 150, 47, 0.6);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -12px rgba(201, 150, 47, 0.75); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: rgba(244, 241, 234, 0.28);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-light); transform: translateY(-2px); }

/* Header ----------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 50;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
  border-block-end: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 10, 12, 0.82);
  backdrop-filter: blur(14px);
  border-block-end-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 0.85rem; }
.brand { display: flex; align-items: center; gap: 0.7rem; }
.brand img { width: 42px; height: 42px; }
.brand-name {
  font-family: var(--ff-serif);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.14em;
  color: var(--fg);
  line-height: 1;
}
.brand-name span { color: var(--gold-light); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; align-items: center; gap: 1.9rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
  position: relative;
  padding-block: 0.3em;
  transition: color 0.25s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  inset-block-end: 0;
  inset-inline-start: 0;
  width: 0;
  height: 1.5px;
  background: var(--gold-grad);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover { color: var(--fg); }
.nav-links a:hover::after { width: 100%; }

/* Language switcher ------------------------------------------------------ */
.lang { position: relative; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  background: transparent;
  border: 1px solid rgba(244, 241, 234, 0.22);
  color: var(--fg);
  padding: 0.5em 0.9em;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.lang-btn:hover, .lang.open .lang-btn { border-color: var(--gold); color: var(--gold-light); }
.lang-btn svg { width: 1.1em; height: 1.1em; }
.lang-btn .chev { width: 0.8em; height: 0.8em; transition: transform 0.25s var(--ease); }
.lang.open .lang-btn .chev { transform: rotate(180deg); }
.lang-menu {
  position: absolute;
  inset-block-start: calc(100% + 0.5rem);
  inset-inline-end: 0;
  min-width: 160px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.4rem;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s;
  list-style: none;
  margin: 0;
}
.lang.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.62em 0.85em;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--fg-muted);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.lang-menu a:hover { background: rgba(201, 150, 47, 0.12); color: var(--fg); }
.lang-menu a.active { color: var(--gold-light); }
.lang-menu a .tick { width: 1em; height: 1em; opacity: 0; }
.lang-menu a.active .tick { opacity: 1; }

/* Mobile nav toggle ------------------------------------------------------ */
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 0.4rem; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--fg); margin: 5px 0; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero ------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: 7rem 4rem;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: -2; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 50% 20%, rgba(10,10,12,0.35) 0%, rgba(10,10,12,0.72) 55%, rgba(10,10,12,0.94) 100%),
    linear-gradient(to bottom, rgba(10,10,12,0.55), rgba(10,10,12,0.35) 40%, var(--black) 99%);
}
.hero-content { max-width: 780px; }
.hero-logo {
  width: clamp(112px, 17vw, 158px);
  height: auto;
  margin-inline: auto;
  margin-block-end: 1.6rem;
  filter: drop-shadow(0 12px 30px rgba(0,0,0,0.6));
  animation: floatIn 1s var(--ease) both;
}
.hero .eyebrow { margin-block-end: 1rem; animation: floatIn 1s 0.1s var(--ease) both; }
.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  letter-spacing: 0.01em;
  margin-block-end: 0.6rem;
  animation: floatIn 1s 0.18s var(--ease) both;
}
.hero-sub {
  font-family: var(--ff-sans);
  font-size: clamp(0.95rem, 2.4vw, 1.15rem);
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin: 0 0 1.5rem;
  animation: floatIn 1s 0.26s var(--ease) both;
}
html[lang="fa"] .hero-sub { letter-spacing: 0.08em; }
.hero-lead {
  font-size: clamp(1.02rem, 2.3vw, 1.22rem);
  color: var(--fg-muted);
  max-width: 34em;
  margin: 0 auto 2.4rem;
  animation: floatIn 1s 0.34s var(--ease) both;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; animation: floatIn 1s 0.42s var(--ease) both; }

/* Sections --------------------------------------------------------------- */
section { position: relative; }
.section { padding-block: clamp(4.5rem, 10vw, 8rem); }
.section-head { max-width: 640px; margin-inline: auto; text-align: center; margin-block-end: 3.5rem; }
.section-head .eyebrow { margin-block-end: 1rem; }
.section-head h2 { font-size: clamp(2rem, 5vw, 3rem); margin-block-end: 1rem; }
.section-head p { color: var(--fg-muted); margin: 0; }
.rule { width: 64px; height: 2px; background: var(--gold-grad); border: 0; margin: 1.4rem auto 0; }

/* Trust statement -------------------------------------------------------- */
.stats {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(201,150,47,0.05), transparent);
}
.statement { text-align: center; padding-block: clamp(2.8rem, 6vw, 4.4rem); }
.statement p {
  font-family: var(--ff-serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  line-height: 1.4;
  max-width: 22em;
  margin-inline: auto;
  color: var(--fg);
}
.statement .gold-text { white-space: nowrap; }
html[lang="fa"] .statement p { font-family: "Vazirmatn", var(--ff-serif); font-weight: 600; line-height: 1.75; }

/* About ------------------------------------------------------------------ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.about-media { position: relative; }
.about-media .frame {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.about-media .frame img { width: 100%; height: 100%; object-fit: cover; }
.about-media .badge {
  position: absolute;
  inset-block-end: -22px;
  inset-inline-end: -18px;
  background: var(--gold-grad);
  color: #1a1305;
  border-radius: 12px;
  padding: 1rem 1.3rem;
  text-align: center;
  box-shadow: 0 18px 40px -14px rgba(201,150,47,0.6);
}
.about-media .badge b { font-family: var(--ff-serif); font-size: 1.9rem; display: block; line-height: 1; }
.about-media .badge span { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 600; }
.about-body h2 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin-block-end: 1.3rem; }
.about-body p { color: var(--fg-muted); margin: 0 0 1.1rem; }
.about-body .lead { color: var(--fg); font-size: 1.1rem; }
.about-body strong { color: var(--gold-light); font-weight: 600; }

/* Services --------------------------------------------------------------- */
.services { background: linear-gradient(180deg, var(--black), var(--black-2)); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.card {
  background: linear-gradient(180deg, var(--panel), var(--black-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.4rem 2rem;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.card:hover { transform: translateY(-8px); border-color: rgba(201,150,47,0.5); box-shadow: var(--shadow); }
.card-icon {
  width: 60px; height: 60px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(201,150,47,0.1);
  border: 1px solid var(--line);
  margin-block-end: 1.5rem;
}
.card-icon svg { width: 28px; height: 28px; color: var(--gold-light); }
.card h3 { font-size: 1.5rem; margin-block-end: 0.7rem; }
.card p { color: var(--fg-muted); margin: 0; font-size: 0.98rem; }

/* Contact ---------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2.5rem, 6vw, 4.5rem); align-items: start; }
.contact-intro h2 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin-block-end: 1.1rem; }
.contact-intro p { color: var(--fg-muted); margin: 0 0 2rem; }
.contact-list { display: grid; gap: 0.9rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,0.015);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.contact-item:hover { border-color: rgba(201,150,47,0.45); background: rgba(201,150,47,0.06); transform: translateY(-2px); }
.contact-item .ci-icon {
  width: 44px; height: 44px; flex: none;
  display: grid; place-items: center;
  border-radius: 10px;
  background: rgba(201,150,47,0.1);
  color: var(--gold-light);
}
.contact-item .ci-icon svg { width: 20px; height: 20px; }
.contact-item .ci-text { display: flex; flex-direction: column; min-width: 0; }
.contact-item .ci-label { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-dim); }
html[lang="fa"] .contact-item .ci-label { letter-spacing: 0.04em; }
.contact-item .ci-value { font-weight: 500; color: var(--fg); word-break: break-word; }
.contact-item[dir="ltr"] .ci-value { direction: ltr; }

.contact-card {
  background: linear-gradient(160deg, var(--panel-2), var(--black-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem;
  box-shadow: var(--shadow);
  position: sticky;
  inset-block-start: 100px;
  text-align: center;
}
.contact-card img { width: 84px; margin: 0 auto 1.2rem; }
.contact-card h3 { font-size: 1.55rem; margin-block-end: 0.4rem; }
.contact-card .role { color: var(--gold-light); font-size: 0.9rem; letter-spacing: 0.05em; margin-block-end: 1.6rem; }
.contact-card .btn { width: 100%; justify-content: center; margin-block-end: 0.8rem; }
.socials { display: flex; justify-content: center; gap: 0.7rem; margin-block-start: 1.6rem; }
.socials a {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--fg-muted);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.socials a:hover { color: var(--gold-light); border-color: var(--gold); transform: translateY(-3px); background: rgba(201,150,47,0.08); }
.socials svg { width: 19px; height: 19px; }

/* Footer ----------------------------------------------------------------- */
.site-footer { border-block-start: 1px solid var(--line); background: var(--black-2); padding-block: 3rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; }
.footer-brand { display: flex; align-items: center; gap: 0.7rem; }
.footer-brand img { width: 38px; height: 38px; }
.footer-brand .brand-name { font-size: 1.15rem; }
.footer-nav { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.footer-nav a { color: var(--fg-muted); font-size: 0.9rem; transition: color 0.25s var(--ease); }
.footer-nav a:hover { color: var(--gold-light); }
.footer-legal { width: 100%; border-block-start: 1px solid var(--line); margin-block-start: 2rem; padding-block-start: 1.6rem; color: var(--fg-dim); font-size: 0.82rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem; }

/* Reveal on scroll (progressive enhancement - only hides when JS is active) */
html.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
html.js .reveal.in { opacity: 1; transform: none; }

/* Animations ------------------------------------------------------------- */
@keyframes floatIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  html.js .reveal { opacity: 1 !important; transform: none !important; transition: none; }
}

/* Responsive ------------------------------------------------------------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 420px; margin-inline: auto; }
  .cards { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card { position: static; }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset-block-start: 0; inset-inline-end: 0;
    height: 100svh;
    width: min(78vw, 300px);
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 2rem;
    background: rgba(12, 12, 16, 0.98);
    backdrop-filter: blur(16px);
    border-inline-start: 1px solid var(--line);
    padding: 2rem;
    transform: translateX(110%);
    transition: transform 0.4s var(--ease);
    z-index: 60;
  }
  html[dir="rtl"] .nav { transform: translateX(-110%); }
  body.nav-open .nav { transform: translateX(0); }

  /* Dimmed backdrop: tapping it (anywhere outside the panel) closes the menu */
  body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 55;
    background: rgba(8, 8, 11, 0.6);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s var(--ease), visibility 0.35s;
  }
  body.nav-open::after { opacity: 1; visibility: visible; pointer-events: auto; }
  body.nav-open .site-header { z-index: 100; }
  .nav-links { flex-direction: column; align-items: flex-start; gap: 1.4rem; }
  .nav-links a { font-size: 1.15rem; }
  .nav-toggle { z-index: 61; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .about-media .badge { inset-inline-end: 50%; transform: translateX(50%); inset-block-end: -26px; }
  html[dir="rtl"] .about-media .badge { transform: translateX(-50%); }
}