:root {
  --bg: #f5f5f7;
  --panel: #ffffff;
  --text: #17172c;
  --muted: #6f7380;
  --line: #e5e7ee;
  --soft: #f6edef;
  --brand: #cc2027;
  --brand-soft: #ff767b;
  --wa: #25D366;
  --shadow: 0 18px 45px rgba(18,24,40,.08);
  --container: 1220px;
  --radius-xl: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 120;
}
.site-header__wrap {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; min-width: 0; }
.brand-badge {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(180deg, var(--brand) 0%, #c71d25 100%);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 900; font-size: 28px;
  box-shadow: 0 10px 25px rgba(204,32,39,.22); flex-shrink: 0;
}
.brand-text { font-size: 20px; font-weight: 800; line-height: 1.05; letter-spacing: -.02em; }
.brand-text span { color: var(--brand); }
.nav { display: flex; align-items: center; gap: 24px; }
.nav a { font-size: 15px; color: #2f3243; font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle {
  width: 52px; height: 52px; border-radius: 16px; border: 1px solid var(--line);
  background: #fff; display: none; align-items: center; justify-content: center;
  cursor: pointer; padding: 0;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  display: block; width: 24px; height: 3px; border-radius: 999px;
  background: #22263a; position: relative; content: "";
}
.menu-toggle span::before { position: absolute; top: -8px; }
.menu-toggle span::after { position: absolute; top: 8px; }

.btn-whatsapp, .btn-outline, .btn-call {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 24px; border-radius: 999px; font-weight: 800; font-size: 16px;
  border: none; cursor: pointer; transition: .2s ease;
}
.btn-whatsapp:hover, .btn-outline:hover, .btn-call:hover { transform: translateY(-1px); }
.btn-whatsapp { background: var(--wa); color: #05180c; box-shadow: 0 14px 30px rgba(37,211,102,.22); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.34); }
.btn-call { background: #fff; color: #23263a; border: 2px solid #e0e3ea; }

.mobile-menu {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
}
.mobile-menu__inner {
  display: block;
  padding: 0 18px 18px;
}
.mobile-menu__inner a {
  display: flex;
  align-items: center;
  min-height: 74px;
  padding: 0 16px;
  font-size: 26px;
  line-height: 1.15;
  font-weight: 700;
  color: #1f2336;
  border-bottom: 1px solid #ececf1;
}
.mobile-menu__inner a:last-child {
  border-bottom: 1px solid #ececf1;
}
.mobile-menu__inner .btn-whatsapp {
  width: 100%;
  margin-top: 0;
  justify-content: flex-start;
  background: transparent;
  color: #1f2336;
  box-shadow: none;
  border-radius: 0;
  padding: 0 16px;
}
.mobile-menu__inner .btn-whatsapp:hover {
  transform: none;
}
.menu-toggle.is-active { background: #f6f7fb; }
body.menu-open { overflow: hidden; }

.hero {
  color: #fff;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(7,9,20,.88) 0%, rgba(7,9,20,.80) 42%, rgba(7,9,20,.46) 70%, rgba(7,9,20,.20) 100%),
    var(--hero-image, url('/assets/img/hero-rothepower.jpg?v=20260309c')) center center / cover no-repeat;
}
.hero__inner { min-height: 760px; display: flex; align-items: center; padding: 76px 0 0; }
.hero__content { max-width: 720px; width: 100%; padding-bottom: 42px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 22px;
  border-radius: 999px; background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.18);
  color: #f6f0f1; font-size: 14px; font-weight: 800; letter-spacing: .08em;
  text-transform: uppercase; margin-bottom: 22px;
}
h1 { margin: 0 0 18px; font-size: clamp(42px, 7vw, 78px); line-height: .96; letter-spacing: -.04em; }
h1 .accent { color: var(--brand-soft); }
.hero-copy { margin: 0 0 28px; font-size: 20px; line-height: 1.75; color: rgba(255,255,255,.84); max-width: 650px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 34px; align-items: center; }
.hero-metrics {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0;
  width: min(760px, 100%); background: rgba(8,10,21,.32); border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(4px); overflow: hidden;
}
.metric { min-width: 0; padding: 28px 26px; border-right: 1px solid rgba(255,255,255,.12); background: rgba(0,0,0,.08); }
.metric:last-child { border-right: none; }
.metric strong { display: block; font-size: 56px; line-height: 1; margin-bottom: 8px; }
.metric span { display: block; color: rgba(255,255,255,.76); font-size: 14px; text-transform: uppercase; letter-spacing: .08em; line-height: 1.55; }

.section { padding: 76px 0; }
.section-header { max-width: 760px; margin-bottom: 34px; }
.section-label {
  display: inline-flex; align-items: center; padding: 10px 18px; border-radius: 999px; background: var(--soft);
  color: var(--brand); font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 18px;
}
.section-title { margin: 0 0 12px; font-size: clamp(34px, 5vw, 58px); line-height: 1.05; letter-spacing: -.03em; }
.section-copy { margin: 0; font-size: 18px; line-height: 1.8; color: var(--muted); max-width: 720px; }
.section-line { width: 64px; height: 5px; border-radius: 999px; background: var(--brand); margin-top: 24px; }

.products-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.product-card, .detail-card, .contact-card, .form-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow);
}
.product-card { display: flex; flex-direction: column; }
.product-media, .detail-media { background: #f1f2f6; padding: 22px; }
.product-media img, .detail-media img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 12px; background: #fff; }
.product-body, .detail-body { padding: 28px; display: flex; flex-direction: column; gap: 18px; flex: 1; }
.product-category { font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--brand); }
.product-title { margin: 0; font-size: 28px; line-height: 1.08; letter-spacing: -.02em; }
.product-copy { margin: 0; color: #5d6270; font-size: 18px; line-height: 1.8; }
.product-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  display: inline-flex; align-items: center; padding: 12px 18px; border-radius: 999px; font-size: 15px; font-weight: 700;
  color: #6c6f79; background: #f1f2f6; border: 1px solid #e2e5ec;
}
.tag--accent { background: #fbefef; color: var(--brand); border-color: #f1d7d8; }
.product-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: auto; }
.product-actions .btn-whatsapp { width: 100%; padding: 17px 24px; font-size: 17px; }

.category-grid { display: grid; gap: 28px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; }
.detail-body { display: grid; align-content: start; }
.spec-table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.spec-item { border: 1px solid #e2e5ec; border-radius: 14px; padding: 12px 14px; background: #fafafc; }
.spec-item strong { display: block; font-size: 13px; color: #7a7f8a; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.accordion { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 16px; }
.accordion details { border: 1px solid var(--line); border-radius: 16px; background: #fafafc; padding: 14px 16px; }
.accordion details + details { margin-top: 12px; }
.accordion summary { cursor: pointer; font-weight: 800; color: #23263a; }
.accordion .content { padding-top: 12px; color: #5d6270; line-height: 1.8; }
.file-link { display: inline-flex; align-items: center; gap: 10px; color: var(--brand); font-weight: 800; }
.video-note, .pdf-note { margin: 0; color: #5d6270; }

.contact-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 26px; align-items: start; }
.contact-card, .form-card { padding: 34px; }
.contact-list { display: grid; gap: 22px; margin-top: 14px; }
.contact-item { display: flex; gap: 18px; align-items: flex-start; }
.contact-icon {
  width: 72px; height: 72px; border-radius: 20px; background: var(--soft); display: inline-flex; align-items: center; justify-content: center;
  color: var(--brand); font-size: 30px; flex-shrink: 0;
}
.contact-item small { display: block; color: #a0a4ad; font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px; }
.contact-item p, .contact-item a { margin: 0; font-size: 19px; line-height: 1.7; color: #23263a; }
.stack-actions { display: grid; gap: 14px; margin-top: 28px; }
.stack-actions .btn-whatsapp, .stack-actions .btn-call { width: 100%; min-height: 68px; font-size: 18px; border-radius: 20px; font-weight: 800; }
.contact-form { display: grid; gap: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
input, textarea {
  width: 100%; border: 1px solid #dde1e8; background: #fafafc; color: #202436; border-radius: 16px; padding: 16px 18px; font: inherit; outline: none;
}
textarea { min-height: 150px; resize: vertical; }
.form-card .btn-whatsapp { width: 100%; min-height: 60px; }

.site-footer { background: #080913; color: #a3a8b8; margin-top: 40px; padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .9fr; gap: 32px; }
.footer-brand { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 18px; }
.footer-brand span { color: #ff767b; }
.footer-copy, .footer-links a, .footer-contact a, .footer-contact div { font-size: 16px; line-height: 1.95; color: #a3a8b8; }
.footer-title { color: #7e8496; font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; }
.footer-links, .footer-contact { display: grid; gap: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.10); margin-top: 34px; padding-top: 22px; font-size: 14px; color: #7d8394; }
.wa-float {
  position: fixed; right: 18px; bottom: 18px; width: 72px; height: 72px; border-radius: 50%; background: var(--wa);
  display: inline-flex; align-items: center; justify-content: center; box-shadow: 0 18px 35px rgba(37,211,102,.30); z-index: 120;
}
.wa-float svg { width: 34px; height: 34px; fill: #06200f; }

@media (max-width: 1100px) {
  .products-grid, .contact-layout, .footer-grid, .form-grid, .detail-grid { grid-template-columns: 1fr; }
  .hero__inner { min-height: auto; }
}
@media (max-width: 860px) {
  .mobile-menu__inner {
    padding: 0 16px 22px;
  }
  .mobile-menu__inner a,
  .mobile-menu__inner .btn-whatsapp {
    min-height: 78px;
    font-size: 22px;
    letter-spacing: -.01em;
  }
  .wa-float { width: 64px; height: 64px; right: 14px; bottom: 14px; }
  .wa-float svg { width: 30px; height: 30px; }
  .nav, .header-actions .btn-whatsapp { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-menu.is-open { display: block; }
  .site-header__wrap { min-height: 86px; }
  .hero {
    background:
      linear-gradient(180deg, rgba(7,9,20,.74) 0%, rgba(7,9,20,.42) 32%, rgba(7,9,20,.74) 100%),
      var(--hero-image, url('/assets/img/hero-rothepower.jpg?v=20260309c')) center center / cover no-repeat;
  }
  .hero__inner { padding: 52px 0 0; min-height: auto; }
  .hero__content { max-width: 100%; padding-bottom: 0; }
  .hero-badge { font-size: 13px; letter-spacing: .07em; }
  h1 { font-size: clamp(42px, 12vw, 66px); }
  .hero-copy { font-size: 18px; line-height: 1.7; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 14px; margin-bottom: 0; }
  .hero-actions .btn-whatsapp, .hero-actions .btn-outline { width: 100%; min-height: 60px; }
  .hero-metrics {
    grid-template-columns: 1fr 1fr; width: calc(100% + 32px); margin-left: -16px; margin-right: -16px; margin-top: 34px;
    border-left: none; border-right: none; border-radius: 0;
  }
  .metric { padding: 24px 16px; border-right: 1px solid rgba(255,255,255,.10); border-bottom: 1px solid rgba(255,255,255,.10); }
  .metric:nth-child(2) { border-right: none; }
  .metric:last-child { grid-column: 1 / -1; border-right: none; border-bottom: none; }
  .metric strong { font-size: 44px; }
  .section { padding: 58px 0; }
  .section-title { font-size: clamp(32px, 11vw, 54px); }
  .product-body, .contact-card, .form-card, .detail-body { padding: 24px; }
  .product-copy, .section-copy, .contact-item p, .contact-item a { font-size: 17px; }
  .spec-table { grid-template-columns: 1fr; }
}
@media (min-width: 861px) {
  .mobile-menu { display: none !important; }
}

.btn-monochrome {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 17px 24px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 17px;
  background: #fff;
  color: #111319;
  border: 2px solid #111319;
  transition: .2s ease;
}
.btn-monochrome:hover { transform: translateY(-1px); }
.claims-box {
  margin-top: 22px;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid #e2e5ec;
  background: #fafafc;
}
.claims-box h4 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.1;
}
.claims-box p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}
@media (max-width: 860px) {
  .product-actions .btn-monochrome,
  .claims-box .btn-monochrome {
    width: 100%;
    min-height: 60px;
  }
}