/* ============================================================
   World Tone — Design System
   Self-hosted CSS (no Tailwind CDN) for fast Core Web Vitals.
   ============================================================ */

:root {
  --neon: #ff5f1f;
  --neon-dim: #cc4a18;
  --neon-glow: #ff8c5a;
  --bg: #050505;
  --card: #0a0a0a;
  --card-2: #111111;
  --border: #1f1f1f;
  --text: #e5e5e5;
  --muted: #9ca3af;
  --muted-2: #6b7280;
  --white: #ffffff;
  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Rajdhani', system-ui, sans-serif;
  --maxw: 1200px;
  --radius: 12px;
}

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

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

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 500;
  line-height: 1.6;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 700; color: var(--white); line-height: 1.15; margin: 0 0 .5em; }
p { margin: 0 0 1rem; }

::selection { background: var(--neon); color: #000; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 1.25rem; }
.section { padding-block: 3.5rem; }
.section-sm { padding-block: 2rem; }
.narrow { max-width: 900px; margin-inline: auto; }
.center { text-align: center; }
main { min-height: 70vh; }

.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.flex-center { display: flex; justify-content: center; align-items: center; gap: 1rem; }
.wrap { flex-wrap: wrap; }
.gap-sm { gap: .5rem; }

@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 820px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stack-md { grid-template-columns: 1fr !important; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding-block: 2.5rem; }
}

/* ---------- Typography helpers ---------- */
.eyebrow { color: var(--neon); font-family: var(--font-display); font-weight: 700; font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; display: inline-block; margin-bottom: .6rem; }
.text-neon { color: var(--neon); }
.muted { color: var(--muted); }
.lead { font-size: 1.2rem; color: var(--muted); font-weight: 400; }
.neon-glow { color: var(--neon); text-shadow: 0 0 10px rgba(255,95,31,.7), 0 0 20px rgba(255,95,31,.4); }
.h-accent { display: inline-block; width: 5rem; height: 4px; background: var(--neon); border-radius: 4px; }

.title-xl { font-size: clamp(2.4rem, 6vw, 4.5rem); font-weight: 900; }
.title-lg { font-size: clamp(2rem, 4vw, 3rem); }
.title-md { font-size: clamp(1.5rem, 3vw, 2rem); }

/* ---------- Header / Nav ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(0,0,0,.95); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.1); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 4.75rem; }
.brand { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; letter-spacing: .12em; color: var(--white); }
.brand span { color: var(--neon); }
.nav-links { display: flex; align-items: center; gap: 1.6rem; list-style: none; margin: 0; padding: 0; }
.nav-link { position: relative; font-weight: 700; font-size: .82rem; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); padding-block: .3rem; transition: color .25s; }
.nav-link:hover, .nav-link[aria-current="page"] { color: var(--white); }
.nav-link::after { content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0; background: var(--neon); transition: width .3s; }
.nav-link:hover::after, .nav-link[aria-current="page"]::after { width: 100%; }

.dropdown { position: relative; }
.dropdown > button { background: none; border: 0; cursor: pointer; font: inherit; }
.dropdown-menu { position: absolute; right: 0; top: 100%; min-width: 12rem; background: var(--card); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); padding: .4rem; box-shadow: 0 20px 40px rgba(0,0,0,.6); opacity: 0; visibility: hidden; transform: translateY(6px); transition: all .2s; z-index: 60; }
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: .5rem .75rem; border-radius: 8px; font-size: .85rem; color: var(--muted); }
.dropdown-menu a:hover { background: rgba(255,95,31,.1); color: var(--white); }

.menu-toggle { display: none; background: none; border: 0; color: var(--muted); cursor: pointer; padding: .4rem; }
.menu-toggle svg { width: 26px; height: 26px; }

/* Mobile drawer */
.mobile-drawer { position: fixed; inset: 0 0 0 auto; width: 17rem; max-width: 85vw; background: var(--card); border-left: 1px solid rgba(255,255,255,.1); z-index: 80; transform: translateX(100%); transition: transform .3s; padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer a { font-size: 1.05rem; color: var(--muted); font-weight: 700; }
.mobile-drawer a:hover { color: var(--white); }
.drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(2px); z-index: 70; display: none; }
.drawer-overlay.open { display: block; }

@media (max-width: 1024px) {
  .nav-links { display: none; }
  .menu-toggle { display: inline-flex; }
}

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .95rem 1.8rem; border-radius: 8px; font-family: var(--font-display); font-weight: 700; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; cursor: pointer; transition: all .25s; border: 2px solid transparent; }
.btn svg { width: 18px; height: 18px; }
.btn-solid { background: var(--neon); color: #000; box-shadow: 0 0 15px rgba(255,95,31,.3); }
.btn-solid:hover { background: var(--neon-glow); box-shadow: 0 0 25px rgba(255,95,31,.6); }
.btn-outline { background: transparent; border-color: var(--neon); color: var(--neon); }
.btn-outline:hover { background: var(--neon); color: #000; box-shadow: 0 0 20px rgba(255,95,31,.5); }
.btn-block { width: 100%; }

/* ---------- Cards ---------- */
.card { background: var(--card); border: 1px solid rgba(255,255,255,.05); border-radius: var(--radius); padding: 1.75rem; }
.card-2 { background: var(--card-2); border: 1px solid rgba(255,255,255,.05); border-radius: var(--radius); padding: 1.5rem; }

.product-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; transition: transform .3s, border-color .3s, box-shadow .3s; height: 100%; }
.product-card:hover { transform: translateY(-5px); border-color: var(--neon); box-shadow: 0 0 20px rgba(255,95,31,.15); }
.product-card:hover .card-title { color: var(--neon); }
.product-media { height: 12rem; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.5); border-radius: 10px; margin-bottom: 1.1rem; overflow: hidden; padding: 1rem; }
.product-media img { max-height: 100%; width: auto; object-fit: contain; mix-blend-mode: screen; opacity: .92; transition: transform .5s; }
.product-card:hover .product-media img { transform: scale(1.06); }
.card-title { font-family: var(--font-display); font-size: 1.1rem; color: var(--white); margin-bottom: .4rem; }
.card-desc { color: var(--muted-2); font-size: .9rem; margin-bottom: 1rem; }
.card-cta { margin-top: auto; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.05); color: var(--white); font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; display: inline-flex; align-items: center; gap: .35rem; }
.product-card:hover .card-cta { color: var(--neon); }

.badge { display: inline-block; color: var(--neon); font-family: var(--font-display); font-weight: 700; font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; border: 1px solid rgba(255,95,31,.3); border-radius: 6px; padding: .3rem .7rem; }

/* ---------- Hero ---------- */
.hero { position: relative; text-align: center; padding-block: clamp(4rem, 10vw, 8rem); overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 320px; height: 320px; background: var(--neon); opacity: .1; filter: blur(110px); border-radius: 50%; pointer-events: none; }
.hero > * { position: relative; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: .8rem; color: var(--muted-2); margin-bottom: 1.5rem; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.breadcrumb a:hover { color: var(--neon); }
.breadcrumb .sep { opacity: .5; }

/* ---------- Spec grid ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (max-width: 560px) { .spec-grid { grid-template-columns: 1fr; } }
.spec-item { background: var(--card-2); border: 1px solid rgba(255,255,255,.05); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.spec-item .k { display: block; font-size: .68rem; color: var(--muted-2); letter-spacing: .14em; text-transform: uppercase; margin-bottom: .3rem; }
.spec-item .v { color: var(--white); font-weight: 700; font-size: .95rem; }

.spec-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.spec-table th, .spec-table td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--border); font-size: .92rem; }
.spec-table th { color: var(--muted-2); font-family: var(--font-body); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .74rem; width: 40%; }
.spec-table td { color: var(--white); }

/* ---------- Forms ---------- */
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: .7rem; font-weight: 700; color: var(--muted-2); letter-spacing: .14em; text-transform: uppercase; margin-bottom: .35rem; }
.input { width: 100%; background: #111; border: 1px solid #333; color: #fff; border-radius: 8px; padding: .75rem 1rem; font-family: var(--font-body); font-size: 1rem; outline: none; transition: border-color .25s, box-shadow .25s; }
.input:focus { border-color: var(--neon); box-shadow: 0 0 10px rgba(255,95,31,.2); }
textarea.input { resize: vertical; min-height: 7rem; }

/* ---------- FAQ ---------- */
.faq details { border: 1px solid var(--border); border-radius: var(--radius); padding: 0 1.2rem; margin-bottom: .75rem; background: var(--card); }
.faq summary { cursor: pointer; padding: 1.1rem 0; font-family: var(--font-display); font-weight: 700; color: var(--white); font-size: 1rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--neon); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: '\2212'; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq .answer { padding: 1rem 0; color: var(--muted); }

/* ---------- Pills / filters ---------- */
.pill-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.pill { padding: .5rem 1rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); font-family: var(--font-display); font-weight: 700; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--white); background: transparent; cursor: pointer; transition: all .2s; }
.pill:hover { border-color: var(--neon); }
.pill.active { background: var(--neon); color: #000; border-color: var(--neon); }

/* ---------- Chips ---------- */
.chip { display: inline-block; padding: .5rem 1rem; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 6px; font-size: .85rem; font-weight: 700; letter-spacing: .04em; color: var(--white); }

.divider { border: 0; border-top: 1px solid rgba(255,255,255,.1); margin-block: 2rem; }

.feature-list { list-style: none; padding: 0; margin: 0; }
.feature-list li { display: flex; align-items: flex-start; gap: .6rem; margin-bottom: .7rem; color: var(--text); }
.feature-list svg { width: 18px; height: 18px; color: var(--neon); flex-shrink: 0; margin-top: .2rem; }

.prose p { color: var(--muted); font-size: 1.05rem; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.5rem; }
.prose ul { color: var(--muted); padding-left: 1.2rem; }
.prose li { margin-bottom: .4rem; }
.prose a { color: var(--neon); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Footer ---------- */
.site-footer { background: #000; border-top: 1px solid rgba(255,255,255,.1); padding: 3.5rem 0 2rem; margin-top: 3rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,.05); }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 { font-family: var(--font-body); font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--white); margin-bottom: 1.2rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: .7rem; }
.footer-col a { color: var(--muted); font-size: .9rem; }
.footer-col a:hover { color: var(--neon); }
.footer-bottom { text-align: center; font-size: .72rem; letter-spacing: .1em; color: var(--muted-2); padding-top: 1.5rem; }

/* ---------- WhatsApp float ---------- */
.wa-float { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 60; width: 3.5rem; height: 3.5rem; background: #25D366; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 20px rgba(0,0,0,.4); transition: transform .3s, box-shadow .3s; }
.wa-float:hover { transform: scale(1.1); box-shadow: 0 0 20px rgba(37,211,102,.5); }
.wa-float svg { width: 30px; height: 30px; fill: currentColor; }

/* ---------- Misc ---------- */
.aspect-video { position: relative; padding-top: 56.25%; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(255,255,255,.1); }
.aspect-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.hide-scroll::-webkit-scrollbar { display: none; }
.related-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
@media (max-width: 1024px) { .related-strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .related-strip { grid-template-columns: 1fr; } }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0a0a0a; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon); }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--neon); color: #000; padding: .6rem 1rem; z-index: 100; }
.skip-link:focus { left: 0; }