/* ============================================================
   Lythion – Hoja de estilos principal
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green: #95CA00;
  --green-dim: rgba(149,202,0,0.15);
  --dark: #0c0c0c;
  --dark-2: #111111;
  --dark-card: #141414;
  --white: #ffffff;
  --muted: #888888;
  --border: rgba(255,255,255,0.07);
  --max-width: 1400px;
}

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--dark);
  color: var(--white);
  overflow-x: hidden;
}

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

/* ─── HEADER / CABECERA ─────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 80px;
  background: rgba(12,12,12,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--white);
}
.brand svg { flex-shrink: 0; }
.brand .brand-accent { color: var(--green); }

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav a {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #cfcfcf;
  transition: color .2s;
  position: relative;
}
.nav a:hover { color: var(--white); }
.nav a.active { color: var(--green); }
.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--green);
  transition: width .25s ease;
}
.nav a:hover::after { width: 100%; }

.nav a.header-cta {
  background: var(--green);
  color: #000;
  padding: 11px 24px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  border-radius: 5px;
  transition: filter .2s;
}
.header-cta:hover { filter: brightness(1.1); }

/* Hamburguesa (móvil) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: transform .3s, opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── HERO ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  padding: 64px 80px 60px;
  overflow: hidden;
  background-image: url('fondo-01.jpeg');
  background-size: cover;
  background-position: center center;
  background-color: #0c0c0c;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right,
    rgba(0,0,0,0.82) 0%,
    rgba(0,0,0,0.55) 40%,
    rgba(0,0,0,0.10) 70%,
    rgba(0,0,0,0.0) 100%);
  pointer-events: none;
}

.hero-left { flex: 0 0 44%; max-width: 44%; z-index: 2; }

.hero-tag {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero-tag::before {
  content: '';
  display: block;
  width: 38px;
  height: 2px;
  background: var(--green);
  flex-shrink: 0;
}
.hero-tag .t-white { color: var(--white); }
.hero-tag .t-green { color: var(--green); }

h1 {
  font-size: clamp(40px, 4vw, 60px);
  font-weight: 700;
  line-height: 0.97;
  text-transform: uppercase;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
h1 .g { color: var(--green); }
h1 .h1-big { font-size: 1.2em; }

.hero-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #c8c8c8;
  max-width: 460px;
  margin-bottom: 30px;
}

.hero-feats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px 16px;
  margin-bottom: 42px;
}
.hero-feat { display: flex; align-items: flex-start; gap: 11px; }
.hero-feat-ico-wrap {
  width: 34px;
  height: 34px;
  border: 1.5px solid rgba(149,202,0,0.55);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-feat-ico { width: 18px; height: 18px; color: var(--green); }
.hero-feat-body h4 {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 3px;
}
.hero-feat-body p { font-size: 11.5px; color: #999; line-height: 1.45; max-width: 125px; }

.cta-row { display: flex; gap: 14px; align-items: center; margin-bottom: 36px; flex-wrap: wrap; }
.btn-primary {
  background: var(--green);
  color: #000;
  border: none;
  padding: 14px 36px;
  font: 700 11px/1 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  border-radius: 5px;
  transition: filter .2s;
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.55);
  padding: 12px 36px;
  font: 700 11px/1 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  border-radius: 5px;
  transition: border-color .2s;
}
.btn-outline:hover { border-color: var(--white); }

.hero-right { flex: 1; display: flex; justify-content: center; align-items: center; z-index: 2; }
.hero-battery {
  max-height: 380px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 40px rgba(150,220,0,0.25));
  animation: floatY 3.5s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

/* ─── SERVICIOS ─────────────────────────────────────────────── */
.services { padding: 64px 80px 56px; background: var(--dark-2); border-top: 1px solid var(--border); }
.services-tabs { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.service-tab {
  background: transparent;
  color: #bbb;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  padding: 11px 26px;
  font: 700 12px/1 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.service-tab:hover { border-color: var(--green); color: var(--white); }
.service-tab.active {
  background: var(--green);
  color: #000;
  border-color: var(--green);
  font-weight: 800;
}
.services-panels { position: relative; }
.service-panel {
  background: var(--dark-card);
  border-left: 3px solid var(--green);
  border-radius: 0 10px 10px 0;
  padding: 38px 42px;
  animation: panelFade .35s ease;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 44px;
  align-items: center;
}
.service-panel[hidden] { display: block; }
.js .service-panel[hidden] { display: none; }
html:not(.js) .services-tabs { display: none; }
@keyframes panelFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.service-panel h3 {
  font-size: 24px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}
.panel-text p { font-size: 15.5px; line-height: 1.75; color: #aaa; margin-bottom: 22px; }
.panel-aside {
  border-left: 1px solid var(--border);
  padding-left: 40px;
}
.panel-ico { width: 54px; height: 54px; color: var(--green); margin-bottom: 22px; }
.panel-feats { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.panel-feats li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: #cfcfcf;
  line-height: 1.45;
}
.panel-feats svg { width: 17px; height: 17px; color: var(--green); flex-shrink: 0; margin-top: 1px; }
.service-link {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  transition: opacity .2s;
}
.service-link:hover { opacity: 0.75; }

/* ─── PRODUCTOS ─────────────────────────────────────────────── */
.products { padding: 64px 80px 56px; background: var(--dark); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.product-card {
  background: linear-gradient(180deg, #161616 0%, #101010 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(149,202,0,0.4);
  box-shadow: 0 14px 40px rgba(0,0,0,0.45);
}
.product-badge {
  position: absolute;
  top: 14px; right: 14px;
  z-index: 2;
  background: var(--green);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
}
.product-img-wrap {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: radial-gradient(circle at 50% 60%, rgba(149,202,0,0.12) 0%, rgba(0,0,0,0) 65%);
}
.product-img-wrap img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 22px rgba(0,0,0,0.55));
  transition: transform .35s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.05); }
.product-info {
  padding: 8px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-model {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.product-info h3 {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.product-info p { font-size: 13.5px; line-height: 1.6; color: var(--muted); margin-bottom: 18px; flex: 1; }
.product-cta {
  align-self: flex-start;
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.25);
  color: var(--white);
  font: 700 11px/1 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 11px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.product-cta:hover { border-color: var(--green); color: var(--green); }
.product-datasheet:hover { background: var(--green-dim); }

/* ─── QUIÉNES SOMOS ─────────────────────────────────────────── */
.about {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
  padding: 72px 80px;
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}
.about-media { border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.about-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.about-body .hero-tag { margin-bottom: 14px; }
.about-body h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}
.about-body p { font-size: 14px; line-height: 1.8; color: #c2c2c2; margin-bottom: 16px; }
.about-body p strong { color: var(--white); }
.about-stats {
  display: flex;
  gap: 36px;
  margin: 26px 0 30px;
  flex-wrap: wrap;
}
.about-stat { display: flex; flex-direction: column; gap: 4px; }
.about-stat .num { font-size: 30px; font-weight: 900; color: var(--green); line-height: 1; }
.about-stat .lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; line-height: 1.4; }

/* ─── CONTACTO ──────────────────────────────────────────────── */
.contact { padding: 64px 80px 70px; background: var(--dark); border-top: 1px solid var(--border); }
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}
.contact-info { display: flex; flex-direction: column; gap: 14px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease;
}
.contact-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: var(--green);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .25s ease;
}
.contact-item:hover { transform: translateX(5px); border-color: rgba(149,202,0,0.4); }
.contact-item:hover::before { transform: scaleY(1); }
.contact-item svg {
  width: 20px; height: 20px;
  color: var(--green);
  flex-shrink: 0;
  box-sizing: content-box;
  padding: 11px;
  border: 1.5px solid rgba(149,202,0,0.5);
  border-radius: 9px;
  background: var(--green-dim);
}
.contact-item h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 4px;
  color: var(--muted);
}
.contact-item p { font-size: 15px; color: var(--white); font-weight: 600; }
.contact-form { display: flex; flex-direction: column; gap: 26px; }
.contact-form .field-row { display: flex; gap: 26px; }
.contact-form .field { flex: 1; display: flex; flex-direction: column; }
.contact-form label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #9a9a9a;
  margin-bottom: 6px;
  transition: color .2s;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1.5px solid rgba(255,255,255,0.18);
  border-radius: 0;
  padding: 8px 2px;
  color: var(--white);
  font: 400 14px/1.5 'Inter', sans-serif;
  resize: vertical;
  transition: border-color .2s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #8c8c8c; }
.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-bottom-color: var(--green); }
.contact-form .field:focus-within label { color: var(--green); }
.contact-form .btn-primary { align-self: flex-start; justify-content: center; margin-top: 4px; }
.form-status { font-size: 13px; line-height: 1.5; margin-top: 4px; }
.form-status.is-ok { color: var(--green); }
.form-status.is-error { color: #ff6b6b; }

/* ─── MODAL FICHA TÉCNICA ───────────────────────────────────── */
.ds-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
}
.ds-modal.open { display: flex; }
.ds-modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.85); backdrop-filter: blur(4px); }
.ds-modal-box {
  position: relative;
  z-index: 2;
  max-width: 980px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--dark-2);
}
.ds-modal-box img { width: 100%; height: auto; display: block; }
.ds-modal-close {
  position: absolute;
  top: 12px; right: 16px;
  z-index: 3;
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--border);
  color: var(--white);
  width: 38px; height: 38px;
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.ds-modal-close:hover { background: var(--green); color: #000; }

/* ─── APPLICATIONS ──────────────────────────────────────────── */
.applications { padding: 58px 80px 48px; background: var(--dark); }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
}
.section-head-left h2 {
  font-size: 26px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
}
.section-head-left h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 26px;
  background: var(--green);
  margin-right: 14px;
  flex-shrink: 0;
}
.section-head-left p { font-size: 14px; color: var(--muted); margin-top: 6px; margin-left: 18px; }
.ver-todas {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 4px;
  transition: opacity .2s;
}
.ver-todas:hover { opacity: 0.8; }

.apps-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; }
.app-card {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  cursor: pointer;
  border-radius: 6px;
}
.app-card-bg {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  filter: brightness(0.52) saturate(0.45);
  transition: transform .4s ease, filter .4s ease;
}
.app-card:hover .app-card-bg { transform: scale(1.06); filter: brightness(0.65) saturate(0.6); }
.app-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
    rgba(0,0,0,0.88) 0%,
    rgba(0,0,0,0.35) 50%,
    rgba(0,0,0,0.0) 100%);
}
.app-card-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 14px 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.app-ico-wrap {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(149,202,0,0.65);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.app-ico { width: 20px; height: 20px; color: var(--green); flex-shrink: 0; }
.app-name { font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.3px; line-height: 1.3; }

/* ─── BOTTOM FEATURES BAR ───────────────────────────────────── */
.bottom-bar {
  background: var(--dark-2);
  padding: 28px 80px;
  display: flex;
  align-items: center;
  border-top: 1px solid var(--border);
  margin-top: 3px;
  flex-wrap: wrap;
  gap: 20px;
}
.b-feat {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  padding-right: 20px;
  border-right: 1px solid var(--border);
}
.b-feat:last-of-type { border-right: none; padding-right: 0; }
.b-ico { width: 38px; height: 38px; color: var(--green); flex-shrink: 0; }
.b-text h4 {
  font-size: 11.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 3px;
  color: var(--green);
  white-space: nowrap;
}
.b-text p { font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.b-logo {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  color: var(--green);
}

/* ─── FOOTER ────────────────────────────────────────────────── */
.site-footer { background: var(--dark-2); border-top: 1px solid var(--border); }
.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 56px 80px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 12.5px; color: var(--muted); line-height: 1.7; max-width: 300px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #bbb;
  transition: border-color .2s, color .2s;
}
.footer-social a:hover { border-color: var(--green); color: var(--green); }
.footer-col h5 {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--white);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 12.5px; color: var(--muted); transition: color .2s; }
.footer-col a:hover { color: var(--green); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.5;
}
.footer-contact svg { width: 16px; height: 16px; color: var(--green); flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 80px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.footer-bottom p { font-size: 12px; color: var(--muted); }
.footer-bottom p a { color: var(--green); transition: opacity .2s; }
.footer-bottom p a:hover { opacity: 0.8; }

/* ─── BOTÓN FLOTANTE WHATSAPP ───────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 150;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
  transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp-float svg { width: 32px; height: 32px; }
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 8px 26px rgba(37,211,102,0.5); }
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25D366;
  z-index: -1;
  animation: waPulse 2.4s ease-out infinite;
}
@keyframes waPulse {
  0%   { transform: scale(1); opacity: 0.6; }
  70%  { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* ─── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .site-header { padding: 16px 40px; }
  .hero { padding: 56px 40px; }
  .applications, .bottom-bar,
  .services, .products, .contact { padding-left: 40px; padding-right: 40px; }
  .about { padding: 56px 40px; gap: 36px; }
  .footer-main { grid-template-columns: 1fr 1fr; padding: 48px 40px 32px; }
  .footer-bottom { padding: 20px 40px; }
  .apps-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-left { flex-basis: 55%; max-width: 55%; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; z-index: 110; }
  .nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: 75%;
    max-width: 320px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 26px;
    padding: 40px;
    background: var(--dark-2);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform .3s ease;
  }
  .nav.open { transform: translateX(0); }
  .nav a { font-size: 16px; }

  .hero { flex-direction: column; align-items: flex-start; min-height: auto; }
  .hero-left { flex: 1 1 100%; max-width: 100%; }
  .hero-right { display: none; }
  .hero-desc { max-width: 100%; }
  .hero-feats { gap: 18px; }

  .section-head { flex-direction: column; gap: 14px; }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .service-panel { grid-template-columns: 1fr; gap: 28px; }
  .panel-aside { border-left: none; border-top: 1px solid var(--border); padding-left: 0; padding-top: 28px; }
  .panel-ico { margin-bottom: 16px; }
  .about { grid-template-columns: 1fr; }
  .about-media { order: 2; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }

  .bottom-bar { flex-direction: column; align-items: flex-start; }
  .b-feat { border-right: none; width: 100%; }
  .b-text h4, .b-text p { white-space: normal; }
  .b-logo { margin-left: 0; }

  .footer-main { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .site-header { padding: 14px 20px; }
  .hero { padding: 40px 20px; }
  .applications, .bottom-bar,
  .services, .products, .contact { padding-left: 20px; padding-right: 20px; }
  .about { padding: 48px 20px; }
  .footer-main, .footer-bottom { padding-left: 20px; padding-right: 20px; }
  .apps-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .contact-form .field-row { flex-direction: column; }
  .hero-feats { grid-template-columns: 1fr; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-outline { justify-content: center; }
  .whatsapp-float { width: 52px; height: 52px; bottom: 18px; right: 18px; }
  .whatsapp-float svg { width: 28px; height: 28px; }
}