/* =========================================================
   KTB Trade — Design tokens
   Palette:  ink navy (brand) / brass (trade & quality accent) / kraft paper (packaging echo)
   Type:     Vazirmatn (Persian, all-purpose) · Fraunces + Inter (English display/body) · JetBrains Mono (manifest numerals)
   Signature: the hero "trade manifest" card — a stylised bill-of-lading listing our three brands as cargo entries
   ========================================================= */

:root{
  --ink:        #16233F;
  --ink-2:      #1F3A5F;
  --ink-soft:   #3C5578;
  --brass:      #B8863A;
  --brass-light:#D9AE6C;
  --paper:      #F6F2EA;
  --paper-2:    #EFE9DA;
  --card:       #FFFFFF;
  --charcoal:   #232323;
  --muted:      #6B6255;
  --line:       #DED5C0;
  --shadow:     0 20px 50px -25px rgba(22,35,63,.35);
  --radius:     14px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

html[lang="fa"]{
  --font-display: 'Vazirmatn', sans-serif;
  --font-body: 'Vazirmatn', sans-serif;
}
html[lang="en"]{
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--charcoal);
  font-family:var(--font-body);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
html[dir="rtl"] body{ line-height:2; }

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }

.container{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:24px;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--ink);
  margin:0 0 .5em;
  line-height:1.25;
}
html[lang="en"] h1, html[lang="en"] h2, html[lang="en"] h3{ font-weight:600; letter-spacing:-.01em; }
html[lang="fa"] h1, html[lang="fa"] h2, html[lang="fa"] h3{ font-weight:700; }

p{ margin:0 0 1em; color:var(--charcoal); }
.muted{ color:var(--muted); }

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brass);
  background:rgba(184,134,58,.1);
  border:1px solid rgba(184,134,58,.3);
  padding:.4em .9em;
  border-radius:999px;
  margin-bottom:1.1em;
}
html[dir="rtl"] .eyebrow{ letter-spacing:0; }

.btn{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  padding:.85em 1.6em;
  border-radius:10px;
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  position:relative;
  overflow:hidden;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn::before{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(120deg, transparent 35%, rgba(255,255,255,.32) 50%, transparent 65%);
  transform:translateX(-130%);
  transition:transform .6s ease;
  pointer-events:none;
}
.btn:hover{ transform:translateY(-2px); }
.btn:hover::before{ transform:translateX(130%); }
.btn:active{ transform:translateY(0) scale(.97); }
.btn-primary{ background:var(--brass); color:#fff; box-shadow:0 12px 26px -12px rgba(184,134,58,.6); }
.btn-primary:hover{ background:#a67730; }
.btn-ghost{ background:transparent; border-color:rgba(255,255,255,.35); color:#fff; }
.btn-ghost:hover{ background:rgba(255,255,255,.1); }
.btn-outline{ background:transparent; border-color:var(--ink); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:#fff; }
.btn-wa{ background:#25D366; color:#fff; }
.btn-wa:hover{ background:#1ebe59; }

/* ---------------- Header ---------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding-block:14px;
  gap:20px;
}
.brand{ display:flex; align-items:center; gap:.7em; color:#fff; }
.brand img{ height:38px; width:auto; border-radius:4px; background:#fff; padding:2px; }
.brand-name{ font-family:var(--font-display); font-weight:700; font-size:1.05rem; }

.main-nav{ display:flex; align-items:center; gap:28px; }
.main-nav a{
  color:rgba(255,255,255,.78);
  font-size:.95rem;
  position:relative;
  padding-block:4px;
}
.main-nav a::after{
  content:"";
  position:absolute; inset-inline:0; bottom:-6px;
  height:2px; background:var(--brass);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .25s cubic-bezier(.4,0,.2,1);
}
.main-nav a:hover{ color:#fff; }
.main-nav a:hover::after{ transform:scaleX(1); }
.main-nav a.active{ color:#fff; }
.main-nav a.active::after{ transform:scaleX(1); }
.header-actions{ display:flex; align-items:center; gap:14px; }
.lang-btn{
  font-family:var(--mono);
  font-size:.78rem;
  border:1px solid rgba(255,255,255,.3);
  color:#fff;
  padding:.45em .9em;
  border-radius:999px;
}
.lang-btn:hover{ background:rgba(255,255,255,.12); }
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  width:30px; height:30px;
  padding:0;
  background:none; border:0;
  cursor:pointer;
}
.nav-toggle-bar{
  display:block;
  width:100%; height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform .3s cubic-bezier(.4,0,.2,1), opacity .2s ease;
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bar:nth-child(2){ opacity:0; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media (max-width: 860px){
  .main-nav{
    position:absolute; inset-inline:0; top:100%;
    background:var(--ink);
    flex-direction:column; align-items:flex-start;
    padding-inline:24px;
    max-height:0;
    opacity:0;
    overflow:hidden;
    display:flex;
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:max-height .35s cubic-bezier(.4,0,.2,1), opacity .25s ease, padding-block .35s ease;
  }
  .main-nav.open{ max-height:320px; opacity:1; padding-block:10px 20px; }
  .nav-toggle{ display:flex; }
}

/* ---------------- Hero ---------------- */
.hero{
  background:linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  color:#fff;
  padding-block:72px 100px;
  position:relative;
  overflow:hidden;
}
.hero .container{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
@media (max-width: 900px){
  .hero .container{ grid-template-columns:1fr; }
}
.hero h1{ color:#fff; font-size:clamp(1.9rem, 3.4vw, 2.9rem); }
.hero-desc{ color:rgba(255,255,255,.78); font-size:1.05rem; max-width:46ch; }
.hero-actions{ display:flex; gap:14px; margin-top:1.6em; flex-wrap:wrap; }

@keyframes ktb-rise{
  from{ opacity:0; transform:translateY(16px); }
  to{ opacity:1; transform:translateY(0); }
}
.hero-copy > *{ animation:ktb-rise .7s cubic-bezier(.16,.8,.24,1) both; }
.hero-copy .eyebrow{ animation-delay:.05s; }
.hero-copy h1{ animation-delay:.16s; }
.hero-copy .hero-desc{ animation-delay:.27s; }
.hero-copy .hero-actions{ animation-delay:.38s; }

/* Signature element: the trade manifest card */
.manifest{
  background:var(--paper);
  color:var(--charcoal);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:26px 26px 10px;
  position:relative;
  border:1px solid rgba(0,0,0,.05);
  animation:ktb-rise .8s cubic-bezier(.16,.8,.24,1) both;
  animation-delay:.3s;
}
.manifest-entry{ animation:ktb-rise .6s cubic-bezier(.16,.8,.24,1) both; }
.manifest-entry:nth-child(2){ animation-delay:.6s; }
.manifest-entry:nth-child(3){ animation-delay:.74s; }
.manifest-entry:nth-child(4){ animation-delay:.88s; }
.manifest-entry:nth-child(n+5){ animation-delay:1.02s; }

@keyframes ktb-stamp{
  from{ opacity:0; transform:rotate(-4deg) scale(1.6); }
  to{ opacity:1; transform:rotate(-4deg) scale(1); }
}
@keyframes ktb-stamp-rtl{
  from{ opacity:0; transform:rotate(4deg) scale(1.6); }
  to{ opacity:1; transform:rotate(4deg) scale(1); }
}
.manifest-stamp{ animation:ktb-stamp .5s cubic-bezier(.34,1.56,.64,1) both; animation-delay:1.15s; }
html[dir="rtl"] .manifest-stamp{ animation-name:ktb-stamp-rtl; }
.manifest::before{
  content:"";
  position:absolute; inset-inline:18px; top:0;
  height:6px;
  background-image:linear-gradient(90deg, var(--paper) 50%, transparent 0);
  background-size:14px 6px;
  background-repeat:repeat-x;
}
.manifest-head{
  display:flex; justify-content:space-between; align-items:baseline;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  border-bottom:1px dashed var(--line);
  padding-bottom:14px;
  margin-bottom:6px;
}
.manifest-head strong{ color:var(--ink); font-size:.78rem; }
.manifest-entry{
  display:flex; align-items:center; gap:16px;
  padding-block:16px;
  border-bottom:1px dashed var(--line);
}
.manifest-entry:last-child{ border-bottom:0; }
.manifest-no{
  font-family:var(--mono);
  font-size:.85rem;
  color:var(--brass);
  width:1.8em;
  flex-shrink:0;
}
.manifest-logo{
  width:44px; height:44px;
  border-radius:8px;
  background:#fff;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  flex-shrink:0;
}
.manifest-logo img{ width:100%; height:100%; object-fit:contain; padding:5px; }
.manifest-info{ flex:1; min-width:0; }
.manifest-info .m-name{ font-weight:700; color:var(--ink); font-size:.98rem; }
.manifest-info .m-tag{ font-size:.82rem; color:var(--muted); }
.manifest-stamp{
  font-family:var(--mono);
  font-size:.68rem;
  color:var(--brass);
  border:1px solid var(--brass);
  border-radius:999px;
  padding:.3em .7em;
  white-space:nowrap;
  transform:rotate(-4deg);
}
html[dir="rtl"] .manifest-stamp{ transform:rotate(4deg); }

/* ---------------- Sections ---------------- */
.section{ padding-block:88px; }
.section-alt{ background:var(--paper-2); }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head .eyebrow{ margin-bottom:.9em; }

/* Brand cards */
.brand-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:28px;
}
@media (max-width: 900px){ .brand-grid{ grid-template-columns:1fr; } }
.brand-card{
  background:var(--card);
  border-radius:var(--radius);
  padding:30px;
  border:1px solid var(--line);
  display:flex; flex-direction:column; gap:14px;
  transition:transform .18s ease, box-shadow .18s ease;
}
.brand-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.brand-card .b-logo{
  height:56px; width:auto; max-width:150px;
  object-fit:contain;
  align-self:flex-start;
  transition:transform .3s cubic-bezier(.16,.8,.24,1);
}
.brand-card:hover .b-logo{ transform:scale(1.08); }
html[dir="rtl"] .brand-card .b-logo{ align-self:flex-end; }
.brand-card h3{ margin-bottom:0; font-size:1.2rem; }
.brand-card .b-tag{ font-family:var(--mono); font-size:.75rem; color:var(--brass); text-transform:uppercase; letter-spacing:.08em; }
.brand-card p{ color:var(--muted); font-size:.94rem; flex:1; }
.brand-card .btn{ align-self:flex-start; }
html[dir="rtl"] .brand-card .btn{ align-self:flex-end; }

/* About teaser / split */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
@media (max-width: 900px){ .split{ grid-template-columns:1fr; } }
.about-copy p{ white-space:pre-line; color:var(--muted); }
.stat-row{ display:flex; gap:36px; margin-top:1.6em; flex-wrap:wrap; }
.stat b{ display:block; font-family:var(--mono); color:var(--ink); font-size:1.5rem; }
.stat span{ font-size:.82rem; color:var(--muted); }

.doc-frame{
  background:var(--ink);
  border-radius:var(--radius);
  padding:8px;
  box-shadow:var(--shadow);
}
.doc-frame img{ border-radius:8px; width:100%; height:100%; object-fit:cover; aspect-ratio:4/3; transition:transform .6s cubic-bezier(.16,.8,.24,1); }
.doc-frame:hover img{ transform:scale(1.05); }

/* Contact teaser strip */
.contact-strip{
  background:var(--ink);
  color:#fff;
  border-radius:20px;
  padding:44px;
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.contact-strip h2{ color:#fff; margin-bottom:.2em; }
.contact-strip p{ color:rgba(255,255,255,.75); margin:0; }

/* ---------------- Products page ---------------- */
.filter-tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:38px; }
.filter-tabs a{
  font-family:var(--mono); font-size:.78rem; letter-spacing:.04em;
  padding:.55em 1.1em; border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background:var(--card);
}
.filter-tabs a.active, .filter-tabs a:hover{ background:var(--ink); border-color:var(--ink); color:#fff; }

.product-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:26px;
}
@media (max-width: 960px){ .product-grid{ grid-template-columns:repeat(2, 1fr); } }
@media (max-width: 620px){ .product-grid{ grid-template-columns:1fr; } }

.product-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex; flex-direction:column;
  transition:transform .18s ease, box-shadow .18s ease;
}
.product-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.product-card .p-img{ aspect-ratio:4/3; overflow:hidden; background:var(--paper-2); }
.product-card .p-img img{ width:100%; height:100%; object-fit:cover; transition:transform .5s cubic-bezier(.16,.8,.24,1); }
.product-card:hover .p-img img{ transform:scale(1.08); }
.product-card .p-body{ padding:20px; display:flex; flex-direction:column; gap:8px; flex:1; }
.product-card .p-brand{ font-family:var(--mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; color:var(--brass); }
.product-card h3{ font-size:1.02rem; margin-bottom:.1em; }
.product-card p{ font-size:.9rem; color:var(--muted); margin:0; flex:1; }

.empty-state{
  text-align:center; padding:60px 20px; color:var(--muted);
  border:1px dashed var(--line); border-radius:var(--radius); background:var(--card);
}

/* ---------------- About page ---------------- */
.about-hero{ background:var(--paper-2); padding-block:60px; }
.about-body{ max-width:760px; }
.about-body p{ white-space:pre-line; color:var(--charcoal); font-size:1.02rem; }

/* ---------------- Contact page ---------------- */
.contact-grid{
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px;
}
@media (max-width: 900px){ .contact-grid{ grid-template-columns:1fr; } }
.info-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; margin-bottom:18px;
}
.info-card .label{ font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--brass); margin-bottom:.5em; }
.info-card .value{ font-size:1.02rem; color:var(--ink); font-weight:600; }
.info-card a.value:hover{ color:var(--brass); }

.form-card{
  background:var(--ink); color:#fff; border-radius:var(--radius); padding:30px;
}
.form-card h3{ color:#fff; }
.form-field{ margin-bottom:16px; }
.form-field label{ display:block; font-size:.85rem; color:rgba(255,255,255,.7); margin-bottom:.4em; }
.form-field input, .form-field textarea{
  width:100%; padding:.8em 1em; border-radius:8px; border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06); color:#fff; font-family:var(--font-body); font-size:.95rem;
}
.form-field textarea{ min-height:120px; resize:vertical; }
.form-field input::placeholder, .form-field textarea::placeholder{ color:rgba(255,255,255,.4); }

/* ---------------- Footer ---------------- */
.site-footer{ background:var(--ink); color:rgba(255,255,255,.7); padding-block:44px 26px; margin-top:60px; }
.footer-top{ display:flex; justify-content:space-between; gap:30px; flex-wrap:wrap; padding-bottom:26px; border-bottom:1px solid rgba(255,255,255,.1); margin-bottom:20px; }
.footer-brand{ display:flex; align-items:center; gap:.7em; }
.footer-brand img{ height:32px; background:#fff; border-radius:4px; padding:2px; }
.footer-brand strong{ color:#fff; font-family:var(--font-display); }
.footer-nav{ display:flex; gap:22px; flex-wrap:wrap; }
.footer-nav a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; font-size:.82rem; }

/* ---------------- Admin ---------------- */
.admin-body{ background:var(--paper-2); min-height:100vh; }
.admin-shell{ max-width:1100px; margin-inline:auto; padding:30px 24px 80px; }
.admin-topbar{
  display:flex; justify-content:space-between; align-items:center;
  background:var(--ink); color:#fff; padding:16px 24px; border-radius:var(--radius); margin-bottom:26px;
}
.admin-topbar a{ color:rgba(255,255,255,.75); font-size:.9rem; }
.admin-topbar a:hover{ color:#fff; }
.admin-card{ background:#fff; border-radius:var(--radius); border:1px solid var(--line); padding:26px; margin-bottom:22px; }
.admin-table{ width:100%; border-collapse:collapse; }
.admin-table th, .admin-table td{ text-align:start; padding:12px 10px; border-bottom:1px solid var(--line); font-size:.92rem; }
.admin-table th{ font-family:var(--mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); }
.admin-table img{ width:46px; height:46px; object-fit:cover; border-radius:6px; }
.admin-actions a{ font-size:.85rem; margin-inline-end:12px; }
.admin-actions a.danger{ color:#B4432E; }
.login-shell{ max-width:400px; margin:90px auto; }
.login-card{ background:#fff; border-radius:var(--radius); padding:34px; box-shadow:var(--shadow); }
.form-field-plain{ margin-bottom:16px; }
.form-field-plain label{ display:block; font-size:.85rem; color:var(--muted); margin-bottom:.4em; }
.form-field-plain input, .form-field-plain textarea, .form-field-plain select{
  width:100%; padding:.75em 1em; border-radius:8px; border:1px solid var(--line); font-family:var(--font-body); font-size:.95rem;
}
.form-field-plain textarea{ min-height:110px; }
.alert{ padding:12px 16px; border-radius:8px; font-size:.9rem; margin-bottom:18px; }
.alert-error{ background:#FBEAE7; color:#96311E; border:1px solid #F1C6BE; }
.alert-success{ background:#E8F5EA; color:#2A6E3B; border:1px solid #C3E6C8; }
.alert-info{ background:#EAF1FB; color:#264C82; border:1px solid #C6D8F1; }
.thumb-row{ display:flex; gap:10px; flex-wrap:wrap; margin-top:10px; }
.thumb-row img{ width:64px; height:64px; object-fit:cover; border-radius:6px; border:1px solid var(--line); }

/* ---------------- Scroll reveal ---------------- */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s cubic-bezier(.16,.8,.24,1), transform .6s cubic-bezier(.16,.8,.24,1);
  transition-delay:var(--d, 0ms);
}
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------------- Accessible focus states ---------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible{
  outline:2px solid var(--brass);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------------- Respect reduced motion ---------------- */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}