/* ==========================================================================
   VIKA — Luxury Hardware Factory (LTR build: English / Russian)
   Architecture:
   1. Design Tokens (:root)
   2. Reset & Base
   3. Typography
   4. Layout Utilities
   5. Glassmorphism
   6. Backdrop (cinematic parallax bg)
   7. Custom Cursor
   8. Buttons
   9. Navigation (corner burger + utils + fullscreen menu)
   10. Hero Slider
   11. About
   12. Products (accordion)
   13. Features
   14. Articles
   15. Contact
   16. Social row + Footer
   17. Mobile Tab Bar
   18. Modal
   19. Animations & Keyframes
   20. Responsive
   21. Reduced Motion
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS
   ========================================================================== */
:root {
  --c-ink:         oklch(19% 0.004 30);
  --c-ink-deep:    oklch(13% 0.004 30);
  --c-ink-soft:    oklch(28% 0.005 30);
  --c-gold:        oklch(74% 0.085 85);
  --c-gold-bright: oklch(83% 0.095 88);
  --c-gold-dim:    oklch(60% 0.07 82);
  --c-paper:       oklch(96% 0.008 85);
  --c-white:       oklch(98.5% 0.003 85);

  --bg:            var(--c-ink-deep);
  --bg-elevated:   var(--c-ink-soft);
  --fg:            var(--c-paper);
  --fg-muted:      oklch(70% 0.01 85);
  --fg-faint:      oklch(48% 0.008 85);
  --accent:        var(--c-gold);
  --accent-strong: var(--c-gold-bright);

  --glass-bg:        oklch(30% 0.01 85 / 0.28);
  --glass-bg-strong: oklch(26% 0.01 85 / 0.55);
  --glass-border:    oklch(85% 0.05 85 / 0.14);
  --glass-blur:      18px;
  --glass-radius:    var(--radius-lg);

  --sp-1: 0.25rem;  --sp-2: 0.5rem;  --sp-3: 0.75rem;
  --sp-4: 1rem;     --sp-5: 1.5rem;  --sp-6: 2rem;
  --sp-7: 3rem;     --sp-8: 4rem;    --sp-9: 6rem;
  --sp-10: 8rem;

  /* Radius — the brand mark is the sharp edge; nothing rounds */
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --radius-pill: 0px;

  --t-fast: 180ms cubic-bezier(.4, 0, .2, 1);
  --t-med:  420ms cubic-bezier(.22, 1, .36, 1);
  --t-slow: 900ms cubic-bezier(.22, 1, .36, 1);

  --font-fa: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif; /* Latin + Cyrillic */
  --font-en: "Playfair Display", "Inter", serif;

  /* direction helpers shared by every page stylesheet (RTL = 1, LTR = -1) */
  --flip: -1;
  --select-pos: right 1rem center;

  --nav-h: 76px;
  --tabbar-h: 64px;
  --container: 1200px;
  --shadow-gold: 0 0 40px oklch(74% 0.09 85 / 0.18);
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

body {
  font-family: var(--font-fa);
  font-weight: 300;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
button, input, textarea { font: inherit; color: inherit; }
::selection { background: var(--c-gold); color: var(--c-ink); }

::-webkit-scrollbar { width: 10px; height: 8px; }
::-webkit-scrollbar-track { background: var(--c-ink-deep); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--c-gold-dim), var(--c-gold)); }

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */
h1, h2, h3 { font-weight: 500; line-height: 1.3; }

.section-title {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  letter-spacing: -0.01em;
  margin-block-end: var(--sp-5);
  text-align:center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-block-end: var(--sp-4);
}
.section-eyebrow::before {
  content: "";
  width: 42px;
  height: 1px;
  background: linear-gradient(to right, var(--accent), transparent);
}

.lead { color: var(--fg-muted); font-size: clamp(1rem, 1.6vw, 1.15rem); }

.gold-text {
  background: linear-gradient(120deg, var(--c-gold-dim), var(--c-gold-bright), var(--c-gold));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s linear infinite;
}

/* ==========================================================================
   4. LAYOUT UTILITIES
   ========================================================================== */
.container {
  width: min(100% - 2 * var(--sp-5), var(--container));
  margin-inline: auto;
}
.section { padding-block: var(--sp-10); position: relative; z-index: 1; }

.line-draw {
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
  background-size: 0% 100%;
  background-repeat: no-repeat;
  transition: background-size 1.6s var(--t-slow);
}
.features__divider.visible .line-draw { background-size: 100% 100%; }
.features__divider { margin-block-start: var(--sp-9); }

/* ==========================================================================
   5. GLASSMORPHISM
   ========================================================================== */
.glass {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.3);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.3);
  border: 1px solid var(--glass-border);
  box-shadow: 0 24px 60px oklch(43.805% 0.00925 17.217 / 0.35), inset 0 1px 0 oklch(100% 0 0 / 0.08);
}
.glass-soft {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-block: 1px solid var(--glass-border);
}

/* ==========================================================================
   6. BACKDROP
   ========================================================================== */
.backdrop { position: fixed; inset: 0; z-index: -2; overflow: hidden; }
.backdrop__layer { position: absolute; inset: -12%; will-change: transform; }
.backdrop__layer--img {
  background-image: url('../img/backdrop.png');
  background-size: 110% auto;  
  background-position: center;
  opacity: 0.15;
  animation: backdropDrift 60s ease-in-out infinite alternate;
}

.backdrop__layer--grain {
  inset: 0; opacity: 0.5; mix-blend-mode: overlay;
  background-image: repeating-conic-gradient(oklch(80% 0 0 / 0.03) 0% 25%, transparent 0% 50%);
  background-size: 3px 3px;
}
.backdrop__layer--vignette {
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, oklch(8% 0 0 / 0.75) 100%);
}

/* ==========================================================================
   7. CUSTOM CURSOR
   ========================================================================== */
.cursor { position: fixed; inset: 0; pointer-events: none; z-index: 9999; }
.cursor__dot, .cursor__ring {
  position: absolute; top: 0; left: 0; border-radius: 50%;
  translate: -50% -50%; opacity: 0;
  transition: opacity var(--t-fast), scale var(--t-fast);
}
.cursor__dot { width: 8px; height: 8px; background: var(--c-gold); box-shadow: var(--shadow-gold); }
.cursor__ring {
  width: 38px; height: 38px;
  border: 1px solid oklch(74% 0.09 85 / 0.45);
  transition: opacity var(--t-fast), width var(--t-med), height var(--t-med), border-color var(--t-med);
}
body.cursor-ready .cursor__dot, body.cursor-ready .cursor__ring { opacity: 1; }
body.cursor-hover .cursor__ring { width: 60px; height: 60px; border-color: var(--c-gold-bright); }
@media (pointer: coarse) { .cursor { display: none; } }

/* ==========================================================================
   8. BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 0.85rem 2.2rem; border: none;
  font-size: 0.95rem; font-weight: 500; letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-med), background var(--t-med), border-color var(--t-med);
}
.btn--gold {
  background: linear-gradient(120deg, var(--c-gold-dim), var(--c-gold-bright) 50%, var(--c-gold));
  color: var(--c-ink-deep);
  box-shadow: var(--shadow-gold);
}
.btn--gold:hover { transform: translateY(-3px); box-shadow: 0 0 60px oklch(74% 0.09 85 / 0.35); }
.btn--ghost { background: transparent; color: var(--fg); border: 1px solid var(--glass-border); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

/* ==========================================================================
   9. NAVIGATION — corner burger + centered logo + corner utils
   ========================================================================== */
.nav {
  position: fixed; inset-block-start: 0; inset-inline: 0; z-index: 220;
  height: var(--nav-h);
  transition: background var(--t-med), border-color var(--t-med), height var(--t-med);
  border-block-end: 1px solid transparent;
}
.nav.scrolled {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  border-block-end-color: var(--glass-border);
  height: 62px;
}
.nav__inner {
  width: min(100% - 2 * var(--sp-5), var(--container));
  margin-inline: auto; height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--sp-4);
}
.nav__burger-wrap { justify-self: start; }
.nav__logo { justify-self: center; display: flex; align-items: center; gap: var(--sp-3); }
.nav__utils { justify-self: end; display: flex; align-items: center; gap: var(--sp-3); }

.nav__logo-mark {
  display: grid; place-items: center; width: 40px; height: 40px;
  font-family: var(--font-en); font-size: 1.3rem; font-weight: 700;
  color: var(--c-ink-deep);
  background: linear-gradient(140deg, var(--c-gold-bright), var(--c-gold-dim));
  box-shadow: var(--shadow-gold);
}
.nav__logo-text { font-weight: 500; font-size: 1.05rem; line-height: 1.2; letter-spacing: 0.04em; }
.nav__logo-latin {
  display: block; font-family: var(--font-en); font-size: 0.58rem;
  letter-spacing: 0.4em; color: var(--fg-faint); font-style: normal; direction: ltr;
}

/* Burger */
.nav__burger {
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
  width: 44px; height: 44px;
  background: none; border: 1px solid transparent; padding: var(--sp-2);
  cursor: pointer; transition: border-color var(--t-fast);
}
.nav__burger:hover { border-color: var(--glass-border); }
.nav__burger span {
  width: 24px; height: 1.5px; background: var(--accent);
  transition: transform var(--t-med), opacity var(--t-fast);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Language switch */
.lang-switch { position: relative; }
.lang-switch__toggle {
  display: flex; align-items: center; gap: var(--sp-2);
  background: transparent; border: 1px solid var(--glass-border);
  padding: 0.5rem 0.9rem; font-size: 0.8rem; letter-spacing: 0.05em;
  cursor: pointer; color: var(--fg-muted);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.lang-switch__toggle:hover { border-color: var(--accent); color: var(--accent); }
.lang-switch__icon { width: 16px; height: 16px; color: var(--accent); }
.lang-switch__menu {
  position: absolute; inset-block-start: calc(100% + 10px); inset-inline-end: 0;
  min-width: 150px;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 24px 50px oklch(0% 0 0 / 0.4);
  opacity: 0; visibility: hidden; translate: 0 -8px;
  transition: opacity var(--t-med), translate var(--t-med), visibility 0s var(--t-med);
  z-index: 50;
}
.lang-switch__menu.open { opacity: 1; visibility: visible; translate: 0 0; transition-delay: 0s; }
.lang-switch__menu li {
  padding: 0.65rem 1rem; font-size: 0.85rem; color: var(--fg-muted);
  cursor: pointer; border-block-end: 1px solid var(--glass-border);
  transition: background var(--t-fast), color var(--t-fast), padding-inline-start var(--t-fast);
}
.lang-switch__menu li:last-child { border-block-end: none; }
.lang-switch__menu li:hover, .lang-switch__menu li.active {
  color: var(--accent); background: oklch(74% 0.09 85 / 0.08); padding-inline-start: 1.3rem;
}

/* Icon buttons (cart / profile) */
.icon-btn {
  position: relative;
  display: grid; place-items: center; width: 42px; height: 42px;
  background: transparent; border: 1px solid var(--glass-border);
  color: var(--fg-muted); cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.icon-btn__badge {
  position: absolute; inset-block-start: -6px; inset-inline-end: -6px;
  min-width: 16px; height: 16px; padding-inline: 3px;
  display: grid; place-items: center;
  background: var(--c-gold); color: var(--c-ink-deep);
  font-size: 0.62rem; font-weight: 700; font-family: var(--font-en);
}

/* Fullscreen mega-menu overlay */
.menu-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  background: oklch(11% 0.004 30 / 0.96);
  -webkit-backdrop-filter: blur(22px); backdrop-filter: blur(22px);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t-slow), visibility 0s var(--t-slow);
  overflow-y: auto;
  padding: calc(var(--nav-h) + var(--sp-6)) var(--sp-6) var(--sp-8);
}
.menu-overlay.open { opacity: 1; visibility: visible; transition: opacity var(--t-slow); }
.menu-overlay__art {
  position: fixed; inset-inline-end: -12%; inset-block-start: 50%; translate: 0 -50%;
  width: 620px; height: 620px;
  border: 1px solid oklch(74% 0.09 85 / 0.08);
  border-radius: 50%;
  opacity: 0.4; pointer-events: none;
}
.menu-overlay__art::before, .menu-overlay__art::after {
  content: ""; position: absolute; inset: 12%; border-radius: 50%;
  border: 1px solid oklch(74% 0.09 85 / 0.08);
}
.menu-overlay__art::after { inset: 26%; }

.menu-overlay__close {
  position: fixed; inset-block-start: var(--sp-5); inset-inline-end: var(--sp-5);
  z-index: 2;
  display: grid; place-items: center; width: 46px; height: 46px;
  background: transparent; border: 1px solid var(--glass-border);
  color: var(--fg-muted); cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.menu-overlay__close svg { width: 18px; height: 18px; }
.menu-overlay__close:hover { border-color: var(--accent); color: var(--accent); transform: rotate(90deg); }

.menu-overlay__inner {
  position: relative; z-index: 1;
  width: 100%; max-width: var(--container);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-7);
  margin-inline: auto;
}
.menu-overlay__col {
  opacity: 0; translate: 0 20px;
  transition: opacity var(--t-slow), translate var(--t-slow);
  transition-delay: calc(var(--i, 0) * 90ms);
}
.menu-overlay.open .menu-overlay__col { opacity: 1; translate: 0 0; }
.menu-overlay__col-title {
  font-size: 0.78rem; letter-spacing: 0.1em; color: var(--accent);
  margin-block-end: var(--sp-4); padding-block-end: var(--sp-3);
  border-block-end: 1px solid var(--glass-border);
}
.menu-overlay__col ul { display: flex; flex-direction: column; gap: var(--sp-3); }
.menu-overlay__col a {
  font-size: 0.95rem; color: var(--fg-muted); transition: color var(--t-fast), padding-inline-start var(--t-fast);
  display: inline-block;
}
.menu-overlay__col a:hover { color: var(--accent); padding-inline-start: 0.35rem; }
.menu-overlay__contact { color: var(--fg-muted); font-size: 0.9rem; }
.menu-overlay__contact li + li { margin-block-start: var(--sp-3); }
.menu-overlay__cta { margin-block-start: var(--sp-5); }

/* ==========================================================================
   10. HERO SLIDER
   ========================================================================== */
.hero { position: relative; min-height: 100svh; z-index: 1; overflow: hidden; text-align: center; }
.hero-slider { position: relative; min-height: 100svh; }
.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--sp-9);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition: opacity 1.1s var(--t-slow);
}
.hero-slide__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-slide__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-slide.active { opacity: 1; pointer-events: auto; z-index: 2; }
.hero__content { max-width: 860px; padding-inline: var(--sp-5); will-change: transform; position: relative; z-index: 2; }
.hero__eyebrow { color: var(--accent); letter-spacing: 0.3em; font-size: 0.8rem; margin-block-end: var(--sp-5); }
.hero__title { font-size: clamp(2.4rem, 7.5vw, 5.2rem); font-weight: 500; line-height: 1.25; margin-block-end: var(--sp-5); }
.hero__title-line { display: block; }
.hero__title-line--gold { font-family: var(--font-en); font-style: italic; direction: ltr; }
.hero__subtitle {
  color: var(--fg-muted); max-width: 640px; margin-inline: auto;
  margin-block-end: var(--sp-7); font-size: clamp(0.95rem, 1.6vw, 1.15rem);
}
.hero__actions { display: flex; gap: var(--sp-4); justify-content: center; flex-wrap: wrap; }

/* Decorative brass-ring art — reused on hero slide 2 and about visual */
.art-rings {
  position: absolute; inset-inline-end: 6%; inset-block-start: 50%; translate: 0 -50%;
  width: min(46vw, 480px); aspect-ratio: 1; z-index: 1; pointer-events: none;
}
.art-rings span {
  position: absolute; inset: 0; border: 1px solid oklch(74% 0.09 85 / 0.35);
  border-radius: 50%;
}
.art-rings span:nth-child(2) { inset: 14%; border-color: oklch(74% 0.09 85 / 0.5); }
.art-rings span:nth-child(3) { inset: 30%; border-color: oklch(83% 0.095 88 / 0.7); background: radial-gradient(circle at 35% 30%, oklch(74% 0.09 85 / 0.35), transparent 65%); }
.art-rings--panel { position: absolute; inset: var(--sp-4); width: auto; aspect-ratio: auto; }
.art-rings--panel span { border-radius: 50%; }

/* Dots */
.hero-dots {
  position: absolute; inset-block-end: var(--sp-9); inset-inline: 0;
  display: flex; gap: var(--sp-3); justify-content: center; z-index: 3;
}
.hero-dots__dot {
  width: 26px; height: 2px; background: oklch(85% 0.05 85 / 0.25); border: none;
  cursor: pointer; transition: background var(--t-med);
}
.hero-dots__dot.active { background: var(--c-gold); }

.hero__scroll-cue {
  position: absolute; inset-block-end: var(--sp-9); inset-inline-start: var(--sp-6);
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-2); z-index: 3;
}
.hero__scroll-text { font-size: 0.7rem; letter-spacing: 0.3em; color: var(--fg-faint); }
.hero__scroll-line {
  width: 1px; height: 48px; background: linear-gradient(var(--c-gold), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite; transform-origin: top;
}

.hero__marquee {
  position: absolute; inset-block-end: 0; inset-inline: 0; padding-block: var(--sp-3);
  border-block-start: 1px solid var(--glass-border); overflow: hidden; z-index: 3;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}
.hero__marquee-track { display: flex; gap: var(--sp-6); align-items: center; width: max-content; animation: marquee 30s linear infinite; }
.hero__marquee-track span { white-space: nowrap; font-size: 1rem; letter-spacing: 0.22em; color: var(--fg-faint); }
.hero__marquee-track i { width: 5px; height: 5px; rotate: 45deg; background: var(--c-gold-dim); }

/* ==========================================================================
   11. ABOUT
   ========================================================================== */
.about__grid { display: grid; gap: var(--sp-8); align-items: center; grid-template-columns: 1fr; }
.about__text > p + p { margin-block-start: var(--sp-4); }
.about__stats { display: flex; gap: var(--sp-7); margin-block-start: var(--sp-7); flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat__num, .stat__plus { font-family: var(--font-en); font-size: 2.6rem; color: var(--accent); font-weight: 700; line-height: 1; display: inline; }
.stat__label { font-size: 0.82rem; color: var(--fg-faint); margin-block-start: var(--sp-2); }

.about__visual { padding: var(--sp-4); will-change: transform; position: relative; aspect-ratio: 4 / 5; overflow: hidden; }
.about__visual-caption {
  position: absolute; inset-inline: var(--sp-4); inset-block-end: var(--sp-4);
  padding: var(--sp-4) var(--sp-3);
  font-size: 0.85rem; color: var(--fg-muted); text-align: center;
  background: oklch(12% 0.004 30 / 0.55);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  z-index: 2;
}

/* ==========================================================================
   12. PRODUCTS — accordion with side media
   ========================================================================== */
.products__head { text-align: center; margin-block-end: var(--sp-7); }

.products-acc { border-block-start: 1px solid var(--glass-border); max-width: 920px; margin-inline: auto; }
.acc-item { border-block-end: 1px solid var(--glass-border); }

.acc-item__head {
  width: 100%; display: flex; align-items: center; gap: var(--sp-5);
  background: transparent; border: none; cursor: pointer;
  padding: var(--sp-5) var(--sp-2); text-align: start;
  transition: background var(--t-fast);
}
.acc-item__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
 
  z-index: 0;
}

/* اطمینان از اینکه لایه sheen روی تصویر بماند */
.acc-item__media::after {
  z-index: 1;
}
.acc-item__head:hover { background: oklch(74% 0.09 85 / 0.05); }
.acc-item__num { font-family: var(--font-en); font-size: 1rem; color: var(--fg-faint); }
.acc-item__title { flex: 1; font-size: 1.2rem; }
.acc-item__title em { font-style: normal; font-family: var(--font-en); font-size: 0.68rem; letter-spacing: 0.3em; color: var(--accent); margin-inline-start: var(--sp-4); direction: ltr; display: inline-block; }
.acc-item__toggle { position: relative; width: 20px; height: 20px; flex-shrink: 0; }
.acc-item__toggle::before, .acc-item__toggle::after {
  content: ""; position: absolute; inset-block-start: 50%; inset-inline-start: 50%;
  background: var(--accent); transition: transform var(--t-med);
}
.acc-item__toggle::before { width: 14px; height: 1.5px; translate: -50% -50%; }
.acc-item__toggle::after { width: 1.5px; height: 14px; translate: -50% -50%; }
.acc-item.open .acc-item__toggle::after { transform: rotate(90deg); }

.acc-item__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--t-slow); }
.acc-item__panel-in { overflow: hidden; min-height: 0; }
.acc-item.open .acc-item__panel { grid-template-rows: 1fr; }

.acc-item__panel-in { display: flex; gap: var(--sp-6); padding: var(--sp-2) var(--sp-2) var(--sp-6); align-items: center; }
.acc-item__media {
  flex: 0 0 220px; aspect-ratio: 4 / 3; position: relative; overflow: hidden;
}
.acc-item__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 35%, oklch(95% 0.03 90 / 0.18) 50%, transparent 65%);
  animation: sheen 6s ease-in-out infinite;
}
.acc-item__media--1 { background: linear-gradient(140deg, oklch(50% 0.07 85), oklch(24% 0.02 70)); }
.acc-item__media--2 { background: linear-gradient(140deg, oklch(35% 0.01 260), oklch(15% 0.005 260)); }
.acc-item__media--3 { background: linear-gradient(140deg, oklch(45% 0.04 200), oklch(20% 0.01 220)); }
.acc-item__body { flex: 1; }
.acc-item__desc { color: var(--fg-muted); font-size: 0.94rem; margin-block-end: var(--sp-4); }

.tags { display: flex; gap: var(--sp-2); flex-wrap: wrap; }
.tags li { font-size: 0.7rem; padding: 0.28rem 0.75rem; border: 1px solid var(--glass-border); color: var(--fg-faint); }

.products__cta {
  margin-block-start: var(--sp-8); display: flex; align-items: center; justify-content: center;
  gap: var(--sp-5); flex-wrap: wrap; text-align: center;
}
.products__cta p { color: var(--fg-muted); }

/* ==========================================================================
   13. FEATURES
   ========================================================================== */
.features__head { text-align: center; margin-block-end: var(--sp-8); }
.features__grid { display: grid; gap: var(--sp-5); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.feature { padding: var(--sp-6) var(--sp-5); text-align: center; transition: transform var(--t-med), border-color var(--t-med); }
.feature:hover { transform: translateY(-6px); border-color: oklch(74% 0.09 85 / 0.4); }
.feature__icon { font-size: 1.4rem; color: var(--accent); display: block; margin-block-end: var(--sp-4); }
.feature__title { font-size: 1.1rem; margin-block-end: var(--sp-3); }
.feature__desc { font-size: 0.88rem; color: var(--fg-muted); }

/* ==========================================================================
   14. ARTICLES
   ========================================================================== */
.articles__head { text-align: center; margin-block-end: var(--sp-8); }
.articles__grid { display: grid; gap: var(--sp-5); grid-template-columns: repeat(4, 1fr); }
.article-card { overflow: hidden; display: flex; flex-direction: column; transition: transform var(--t-med), border-color var(--t-med); }
.article-card:hover { transform: translateY(-6px); border-color: oklch(74% 0.09 85 / 0.4); }
.article-card__media { aspect-ratio: 16 / 10; position: relative; overflow: hidden; }
.article-card__media--1 {
    background: linear-gradient(140deg, oklch(50% 0.07 85), oklch(20% 0.02 70));
    text-align: center;
}
.article-card__media--2 { background: linear-gradient(140deg, oklch(40% 0.03 40), oklch(16% 0.01 40));text-align:center; }
.article-card__media--3 { background: linear-gradient(140deg, oklch(42% 0.03 220), oklch(16% 0.01 220)); text-align:center; }
.article-card__media--4 { background: linear-gradient(140deg, oklch(55% 0.03 150), oklch(18% 0.01 150)); }
.article-card__body { padding: var(--sp-4); display: flex; flex-direction: column; flex: 1; }
.article-card__date { font-size: 0.7rem; letter-spacing: 0.1em; color: var(--fg-faint); font-family: var(--font-en); }
.article-card__title { font-size: 1rem; margin-block: var(--sp-2) var(--sp-2); }
.article-card__desc { font-size: 0.82rem; color: var(--fg-muted); flex: 1; margin-block-end: var(--sp-3); }
.article-card__link { font-size: 0.8rem; color: var(--accent); align-self: flex-start; position: relative; }
.article-card__link::after { content: ""; position: absolute; inset-block-end: -3px; inset-inline: 0; height: 1px; background: var(--accent); scale: 0 1; transition: scale var(--t-med); }
.article-card__link:hover::after { scale: 1 1; }

/* ==========================================================================
   15. CONTACT
   ========================================================================== */
.contact__panel { max-width: 820px; margin-inline: auto; padding: clamp(var(--sp-6), 5vw, var(--sp-8)); text-align: center; }
.contact__panel .lead { margin-block-end: var(--sp-6); }
.contact__form { display: grid; gap: var(--sp-5); grid-template-columns: 1fr 1fr; text-align: start; margin-block-end: var(--sp-6); }
.contact__field { display: flex; flex-direction: column; gap: var(--sp-2); }
.contact__field--full { grid-column: 1 / -1; }
.contact__label { font-size: 0.82rem; color: var(--fg-muted); }
.contact__input {
  background: oklch(18% 0.005 85 / 0.6); border: 1px solid var(--glass-border);
  padding: 0.8rem 1rem; font-size: 0.92rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.contact__input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px oklch(74% 0.09 85 / 0.15); }
.contact__submit { grid-column: 1 / -1; justify-self: center; }
.contact__note { grid-column: 1 / -1; text-align: center; font-size: 0.85rem; color: var(--accent); min-height: 1.5em; }
.contact__meta { display: flex; gap: var(--sp-5); justify-content: center; flex-wrap: wrap; font-size: 0.82rem; color: var(--fg-faint); }

/* ==========================================================================
   16. SOCIAL ROW + FOOTER
   ========================================================================== */
.social-row {
  position: relative; z-index: 1;
  display: flex; justify-content: center; gap: var(--sp-4);
  padding-block: var(--sp-7);
  border-block-start: 1px solid var(--glass-border);
}
.social-row__link {
  display: grid; place-items: center; width: 46px; height: 46px;
  border: 1px solid var(--glass-border); color: var(--fg-muted);
  transition: border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.social-row__link svg { width: 18px; height: 18px; }
.social-row__link:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

.footer {
  position: relative; z-index: 1;
  padding-block: var(--sp-8) var(--sp-5);
  background: oklch(12% 0.004 85 / 0.6);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.footer__grid {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: var(--sp-7);
  padding-block-end: var(--sp-7);
}
.footer__col-title { font-size: 0.9rem; margin-block-end: var(--sp-4); color: var(--fg); }
.footer__about { font-size: 0.85rem; color: var(--fg-muted); margin-block-start: var(--sp-4); max-width: 32ch; }
.footer__nav { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer__nav a { font-size: 0.85rem; color: var(--fg-muted); transition: color var(--t-fast); }
.footer__nav a:hover { color: var(--accent); }
.footer__contact { display: flex; flex-direction: column; gap: var(--sp-3); font-size: 0.85rem; color: var(--fg-muted); }
.footer__col--map { display: flex; flex-direction: column; gap: var(--sp-4); }
.footer__map { aspect-ratio: 4 / 3; border: 1px solid var(--glass-border); overflow: hidden; filter: grayscale(0.4) contrast(1.1); }
.footer__map iframe { width: 100%; height: 100%; border: none; }

.enamad-badge {
  display: flex; align-items: center; gap: var(--sp-3);
  background: transparent; border: 1px solid var(--glass-border);
  padding: 0.7rem 1rem; cursor: pointer; width: 100%;
  color: var(--fg-muted); font-size: 0.8rem;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.enamad-badge:hover { border-color: var(--accent); color: var(--accent); }
.enamad-badge__mark {
  display: grid; place-items: center; width: 22px; height: 22px; flex-shrink: 0;
  border: 1px solid currentColor; font-size: 0.75rem;
}

.footer__line { height: 1px; background: linear-gradient(90deg, transparent, var(--c-gold-dim), transparent); opacity: 0.5; }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-3); font-size: 0.78rem; color: var(--fg-faint); padding-block-start: var(--sp-5); }
.footer__tagline { font-family: var(--font-en); direction: ltr; letter-spacing: 0.08em; }

/* ==========================================================================
   17. MOBILE TAB BAR
   ========================================================================== */
.tabbar {
  display: none;
  position: fixed; inset-block-end: 0; inset-inline: 0; z-index: 150;
  height: var(--tabbar-h);
  background: oklch(11% 0.004 30 / 0.92);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-block-start: 1px solid var(--glass-border);
  align-items: stretch;
}
.tabbar__item {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  background: none; border: none; color: var(--fg-faint); font-size: 0.66rem;
  cursor: pointer; transition: color var(--t-fast);
}
.tabbar__item svg { width: 20px; height: 20px; }
.tabbar__item.active { color: var(--accent); }

/* ==========================================================================
   18. MODAL
   ========================================================================== */
.modal { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: var(--sp-5); opacity: 0; visibility: hidden; transition: opacity var(--t-med), visibility 0s var(--t-med); }
.modal.open { opacity: 1; visibility: visible; transition: opacity var(--t-med); }
.modal__backdrop { position: absolute; inset: 0; background: oklch(6% 0.004 30 / 0.75); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.modal__panel {
  position: relative; max-width: 440px; width: 100%; padding: var(--sp-7) var(--sp-6);
  text-align: center; translate: 0 20px; transition: translate var(--t-med);
}
.modal.open .modal__panel { translate: 0 0; }
.modal__panel h3 { margin-block-end: var(--sp-4); }
.modal__panel p { color: var(--fg-muted); font-size: 0.9rem; }
.modal__close {
  position: absolute; inset-block-start: var(--sp-3); inset-inline-end: var(--sp-3);
  width: 32px; height: 32px; background: none; border: 1px solid var(--glass-border);
  color: var(--fg-muted); font-size: 1.1rem; cursor: pointer; line-height: 1;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.modal__close:hover { border-color: var(--accent); color: var(--accent); }
.enamad-badge-large {
  width: 64px; height: 64px; margin-inline: auto var(--sp-5);
  display: grid; place-items: center; border: 1px solid var(--accent);
  color: var(--accent); font-size: 1.6rem;
}

/* ==========================================================================
   19. ANIMATIONS & KEYFRAMES
   ========================================================================== */
.reveal {
  opacity: 0; transform: translateY(36px);
  transition: opacity var(--t-slow), transform var(--t-slow);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.visible { opacity: 1; transform: translateY(0); text-align:justify; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes shimmer { to { background-position: 200% center; } }
@keyframes backdropDrift { from { transform: scale(1.08); } to { transform: scale(1.14) translateY(-2%); } }
@keyframes sheen { 0%, 100% { translate: -30% 0; opacity: 0; } 50% { translate: 30% 0; opacity: 1; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes scrollPulse { 0% { transform: scaleY(0); opacity: 0; } 40% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1) translateY(10px); opacity: 0; } }
@keyframes spinSlow { to { transform: rotate(360deg); } }
.art-rings span:nth-child(1) { animation: spinSlow 40s linear infinite; }
.art-rings span:nth-child(2) { animation: spinSlow 30s linear infinite reverse; }

/* ==========================================================================
   20. RESPONSIVE
   ========================================================================== */
@media (min-width: 768px) {
  .about__grid { grid-template-columns: 1.2fr 0.8fr; }
}

@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .articles__grid { grid-template-columns: repeat(2, 1fr); }
  .menu-overlay__inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .nav__utils .lang-switch__toggle span:last-child { display: none; }
  .contact__form { grid-template-columns: 1fr; }
  .hero__scroll-cue { display: none; }
  .art-rings { display: none; }
  .acc-item__panel-in { flex-direction: column; align-items: stretch; }
  .acc-item__media { flex-basis: auto; width: 100%; }
  .articles__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .footer__bottom { justify-content: center; text-align: center; }

  .tabbar { display: flex; }
  body { padding-block-end: var(--tabbar-h); }

  .menu-overlay__inner { grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
  .menu-overlay__col--contact { grid-column: 1 / -1; }
  .menu-overlay { padding-inline: var(--sp-5); }
}

@media (max-width: 460px) {
  .menu-overlay__inner { grid-template-columns: 1fr; }
}

/* ==========================================================================
   21. REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__marquee-track { animation: none; }
}