/* ===========================
   fki — نسخه نهایی پایدار
=========================== */
:root {
  --bg: #0a0c16;
  --surface: #141827;
  --surface-2: #1a1f33;
  --border: #262c44;
  --text: #f4f4fb;
  --text-dim: #9aa0bf;
  --text-mute: #656c8f;
  --violet: #7c5cff;
  --violet-soft: #a78bfa;
  --mint: #00e5a0;
  --pink: #ff5c93;
  --grad-violet: linear-gradient(135deg, #7c5cff 0%, #ff5c93 100%);
  --grad-mint: linear-gradient(135deg, #00e5a0 0%, #7c5cff 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.16,.84,.44,1);
  --font-body: 'Vazirmatn', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}
.container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { font-family: inherit; }

/* بک‌گراند */
.bg-blobs {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; overflow: hidden;
}
.blob {
  position: absolute; border-radius: 50%;
  filter: blur(100px); opacity: 0.28;
}
.blob-1 {
  width: 500px; height: 500px; background: var(--violet);
  top: -140px; right: -100px;
}
.blob-2 {
  width: 420px; height: 420px; background: var(--pink);
  bottom: -140px; left: -80px;
}
.blob-3 {
  width: 300px; height: 300px; background: var(--mint);
  top: 50%; left: 40%; opacity: 0.12;
}
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cursor-glow { display: none; }

/* هدر */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 14px 0;
  transition: background .3s, border-color .3s, padding .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10,12,22,0.88);
  backdrop-filter: blur(16px);
  border-color: var(--border);
  padding: 10px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.logo-mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.5px;
}
.logo-dot { color: var(--mint); }
.main-nav { display: flex; gap: 20px; }
.nav-link { font-size: 0.9rem; color: var(--text-dim); transition: color .2s; }
.nav-link:hover { color: var(--text); }

.tg-pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--grad-violet); color: #fff;
  padding: 8px 15px; border-radius: 999px;
  font-size: 0.82rem; font-weight: 500; white-space: nowrap;
}
.tg-pill-icon { display: flex; }

.settings-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: 0.25s; flex-shrink: 0;
}
.settings-btn:hover { color: var(--violet-soft); border-color: var(--violet-soft); }

.register-btn {
  display: inline-flex; align-items: center;
  padding: 8px 16px; border-radius: 999px;
  font-size: 0.82rem; font-weight: 600;
  background: linear-gradient(135deg, rgba(124,92,255,0.15), rgba(255,92,147,0.1));
  border: 1px solid rgba(124,92,255,0.4);
  color: var(--violet-soft); cursor: pointer; transition: 0.3s;
  white-space: nowrap; flex-shrink: 0;
}
.register-btn:hover { color: #fff; background: var(--grad-violet); border-color: transparent; }

.user-badge {
  display: none; align-items: center;
  padding: 7px 13px; border-radius: 999px;
  font-size: 0.8rem; font-weight: 600;
  background: rgba(0,229,160,0.12);
  border: 1px solid rgba(0,229,160,0.3); color: var(--mint);
}

.burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.burger span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; }

/* هیرو */
.hero {
  position: relative; z-index: 2;
  padding: 110px 0 50px; min-height: 100vh;
  display: flex; align-items: center;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px; align-items: center; width: 100%;
}
.hero-text { min-width: 0; }
.eyebrow {
  display: inline-block; font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--mint); background: rgba(0,229,160,0.08);
  border: 1px solid rgba(0,229,160,0.22); padding: 5px 12px;
  border-radius: 999px; margin-bottom: 16px;
}
.hero-title {
  font-weight: 900; font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  line-height: 1.35; letter-spacing: -0.4px;
}
.hero-title-accent {
  background: var(--grad-violet);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 16px; color: var(--text-dim); font-size: 0.95rem; max-width: 460px; }
.hero-cta { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; border: none; cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
}
.btn-primary {
  background: var(--grad-violet); color: #fff;
  box-shadow: 0 8px 22px -8px rgba(124,92,255,0.55);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost {
  background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--violet-soft); }
.btn-lg { padding: 15px 30px; font-size: 1rem; }

.hero-stats { display: flex; gap: 32px; margin-top: 42px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--font-mono); font-size: 1.7rem; font-weight: 700; }
.stat-label { font-size: 0.78rem; color: var(--text-mute); margin-top: 2px; }

/* ویژوال هیرو */
.hero-visual {
  position: relative; width: 100%; height: 400px;
  max-width: 460px; margin: 0 auto; flex-shrink: 0;
}
.orbit-ring {
  position: absolute; border: 1px dashed rgba(124,92,255,0.22);
  border-radius: 50%; top: 50%; left: 50%;
  transform: translate(-50%, -50%); pointer-events: none;
}
.ring-1 { width: 260px; height: 260px; }
.ring-2 { width: 360px; height: 360px; border-color: rgba(0,229,160,0.12); }
.center-glow {
  position: absolute; width: 140px; height: 140px;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(124,92,255,0.28), transparent 70%);
  filter: blur(20px); border-radius: 50%; pointer-events: none;
}

.float-card {
  position: absolute; width: 108px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 6px;
  box-shadow: 0 14px 28px -8px rgba(0,0,0,0.5);
  z-index: 3; overflow: hidden;
  animation: floaty 5.5s ease-in-out infinite;
}
.float-card img {
  width: 100%; height: 70px; object-fit: cover;
  border-radius: 8px; display: block;
}
.price-tag {
  display: block; margin-top: 5px; font-family: var(--font-mono);
  font-size: 0.65rem; text-align: center; color: var(--mint);
}
.card-a { top: 5%; left: 5%; animation-delay: 0s; }
.card-b { top: 8%; right: 2%; width: 100px; animation-delay: 1s; }
.card-c { bottom: 10%; left: 2%; width: 102px; animation-delay: 1.8s; }
.card-d { bottom: 5%; right: 6%; animation-delay: 0.5s; }

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.scroll-hint {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font-size: 0.7rem; color: var(--text-mute);
}
.scroll-line {
  width: 1px; height: 32px;
  background: linear-gradient(var(--violet), transparent);
}

/* مارکی */
.marquee-section {
  position: relative; z-index: 2;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 16px 0; overflow: hidden; background: var(--surface);
}
.marquee-track { display: flex; width: max-content; animation: marquee 30s linear infinite; }
.marquee-group {
  display: flex; align-items: center; gap: 14px; padding-left: 14px;
  font-family: var(--font-mono); font-size: 0.88rem;
  color: var(--text-dim); white-space: nowrap;
}
.marquee-group .dot { color: var(--violet); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* بخش‌ها */
section { position: relative; z-index: 2; }
.section-head { max-width: 540px; margin-bottom: 36px; }
.section-title {
  font-weight: 800; font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-top: 8px;
}
.section-sub { color: var(--text-dim); margin-top: 8px; font-size: 0.95rem; }

/* محصولات */
.products { padding: 80px 0; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}
.product-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
  opacity: 0; transform: translateY(20px);
}
.product-card.in-view {
  opacity: 1; transform: translateY(0);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), border-color 0.3s;
}
.product-card:hover { border-color: rgba(124,92,255,0.4); }
.product-media {
  position: relative; width: 100%; aspect-ratio: 1 / 0.82;
  overflow: hidden; background: #0d1018;
}
.product-media img {
  width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s;
}
.product-card:hover .product-media img { transform: scale(1.05); }
.product-badge {
  position: absolute; top: 10px; right: 10px;
  background: rgba(10,12,22,0.82); color: var(--mint);
  font-family: var(--font-mono); font-size: 0.65rem;
  padding: 4px 8px; border-radius: 999px;
  border: 1px solid rgba(0,229,160,0.28);
}
.product-body { padding: 14px 15px 16px; }
.product-cat { font-size: 0.7rem; color: var(--text-mute); font-family: var(--font-mono); }
.product-name { font-size: 0.95rem; font-weight: 700; margin-top: 4px; line-height: 1.4; }
.product-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-top: 12px; flex-wrap: wrap;
}
.product-price {
  font-family: var(--font-mono); font-weight: 700; color: var(--mint); font-size: 0.88rem;
}
.product-buy {
  font-size: 0.68rem; color: var(--violet-soft);
  padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border);
  transition: 0.25s; white-space: nowrap;
}
.product-buy:hover {
  background: var(--grad-violet); color: #fff; border-color: transparent;
}

/* درباره ما */
.about { padding: 80px 0; }
.about-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 44px; align-items: center;
}
.about-visual { position: relative; max-width: 380px; }
.about-frame {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border);
}
.about-frame img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.about-badge {
  position: absolute; bottom: -16px; left: -16px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 16px;
  display: flex; flex-direction: column;
}
.about-badge strong { font-family: var(--font-mono); font-size: 1.4rem; color: var(--mint); }
.about-badge span { font-size: 0.72rem; color: var(--text-dim); }
.about-text p {
  color: var(--text-dim); margin-top: 12px; max-width: 460px; font-size: 0.95rem;
}
.about-list { margin: 20px 0 24px; display: flex; flex-direction: column; gap: 11px; }
.about-list li { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.about-list-icon {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(0,229,160,0.12); color: var(--mint);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.68rem; flex-shrink: 0;
}

/* تماس */
.contact { padding: 90px 0 110px; }
.contact-inner {
  text-align: center; display: flex; flex-direction: column;
  align-items: center; max-width: 520px; margin: 0 auto;
}
.contact-orb {
  position: relative; width: 78px; height: 78px; border-radius: 50%;
  background: var(--grad-violet); display: flex; align-items: center;
  justify-content: center; color: #fff; margin-bottom: 20px;
}
.orb-ping {
  position: absolute; inset: 0; border-radius: 50%; background: var(--violet);
  animation: ping 2.2s cubic-bezier(0,0,0.2,1) infinite;
}
@keyframes ping {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.65); opacity: 0; }
}
.contact-title { font-weight: 800; font-size: clamp(1.5rem, 2.8vw, 2.2rem); }
.contact-sub { color: var(--text-dim); margin: 10px 0 26px; font-size: 0.95rem; }

/* فوتر */
.site-footer {
  position: relative; z-index: 2;
  border-top: 1px solid var(--border); padding: 32px 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-logo { font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem; }
.footer-text, .footer-year { color: var(--text-mute); font-size: 0.82rem; }

/* انیمیشن */
.reveal-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal-up.in-view { opacity: 1; transform: translateY(0); }

/* مودال */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(5,7,15,0.78); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; visibility: hidden; transition: 0.3s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
  position: relative; width: 100%; max-width: 390px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 22px 26px;
}
.modal-close {
  position: absolute; top: 12px; left: 14px;
  background: none; border: none; color: var(--text-mute);
  font-size: 1.45rem; cursor: pointer; line-height: 1;
}
.modal-title { font-weight: 800; font-size: 1.35rem; text-align: center; margin-bottom: 6px; }
.modal-sub { text-align: center; color: var(--text-dim); font-size: 0.86rem; margin-bottom: 20px; }
.reg-step { display: none; }
.reg-step.active { display: block; }
.reg-form { display: flex; flex-direction: column; gap: 13px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 0.78rem; color: var(--text-mute); font-family: var(--font-mono); }
.form-group input {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 11px 12px; color: var(--text); font-family: var(--font-body);
  font-size: 0.9rem; outline: none; width: 100%;
}
.form-group input:focus { border-color: var(--violet); }
.success-icon {
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(0,229,160,0.15); color: var(--mint);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin: 0 auto 14px;
  border: 1px solid rgba(0,229,160,0.28);
}

/* تنظیمات */
.settings-backdrop {
  position: fixed; inset: 0; z-index: 900; background: rgba(0,0,0,0.4);
  opacity: 0; visibility: hidden; transition: 0.3s;
}
.settings-backdrop.open { opacity: 1; visibility: visible; }
.settings-panel {
  position: fixed; top: 0; left: 0; width: 290px; max-width: 90vw; height: 100vh;
  z-index: 950; background: var(--surface); border-right: 1px solid var(--border);
  transform: translateX(-100%); transition: transform 0.35s var(--ease);
  display: flex; flex-direction: column; overflow-y: auto;
}
.settings-panel.open { transform: translateX(0); }
.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px; border-bottom: 1px solid var(--border);
}
.settings-header h3 { font-size: 1rem; font-weight: 700; }
.settings-close {
  background: none; border: none; color: var(--text-mute);
  font-size: 1.35rem; cursor: pointer;
}
.settings-body { padding: 20px 16px; display: flex; flex-direction: column; gap: 18px; }
.setting-item { display: flex; flex-direction: column; gap: 7px; }
.setting-item label { font-size: 0.8rem; color: var(--text-dim); font-family: var(--font-mono); }
.setting-item input[type="color"] {
  width: 100%; height: 40px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--bg); cursor: pointer; padding: 3px;
}
.font-size-control { display: flex; align-items: center; gap: 12px; }
.font-size-control button {
  width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 1.05rem; cursor: pointer;
}
#fontSizeLabel {
  font-family: var(--font-mono); font-weight: 700; min-width: 24px; text-align: center;
}
.setting-actions { display: flex; gap: 10px; margin-top: 6px; }
.setting-actions .btn { flex: 1; justify-content: center; padding: 10px; font-size: 0.85rem; }

/* ریسپانسیو */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { order: -1; height: 320px; max-width: 360px; }
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { max-width: 320px; margin: 0 auto; }
  .burger { display: flex; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: rgba(10,12,22,0.97);
    border-bottom: 1px solid var(--border); padding: 0 24px; gap: 12px;
    max-height: 0; overflow: hidden; opacity: 0; transition: 0.35s;
  }
  .main-nav.open { max-height: 260px; opacity: 1; padding: 14px 24px; }
}
@media (max-width: 600px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero { padding-top: 100px; min-height: auto; }
  .hero-visual { height: 260px; }
  .float-card { width: 88px; }
  .float-card img { height: 56px; }
  .card-b, .card-c { width: 84px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .tg-pill span:not(.tg-pill-icon) { display: none; }
  .hero-stats { gap: 22px; }
}