/* ============================================
   CUSTOM PROPERTIES
   ============================================ */
:root {
  --color-white: #ffffff;
  --color-bg: #f8f8f8;
  --color-black: #1a1a1a;
  --color-grey: #6b6b6b;
  --color-accent-blue: #2196f3;
  --color-whatsapp: #25d366;
  --color-border: #e8e8e8;

  --font-main: 'Plus Jakarta Sans', sans-serif;
  --nav-height: 64px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-main);
  color: var(--color-black);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1 {
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.375rem);
  font-weight: 600;
  line-height: 1.3;
}

p {
  line-height: 1.7;
  color: var(--color-grey);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color 0.3s, background 0.3s;
}

.nav--scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(255, 255, 255, 0.98);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-black);
}

.nav__logo-icon {
  width: 26px;
  height: 32px;
  flex-shrink: 0;
}

.nav__logo-wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav__logo-name {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-black);
}

.nav__logo-katakana {
  font-size: 0.52rem;
  letter-spacing: 0.28em;
  color: var(--color-grey);
  margin-top: 3px;
}

/* Desktop nav links */
.nav__links {
  display: none;
  gap: 28px;
  align-items: center;
}

.nav__link {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--color-black);
  transition: color 0.2s;
  position: relative;
  padding-bottom: 2px;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--color-accent-blue);
  transform: scaleX(0);
  transition: transform 0.2s ease;
  transform-origin: left;
}

.nav__link:hover {
  color: var(--color-accent-blue);
}

.nav__link:hover::after {
  transform: scaleX(1);
}

/* Right side controls */
.nav__right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Language toggle */
.nav__lang {
  display: flex;
  align-items: center;
  gap: 1px;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 7px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-main);
  color: var(--color-grey);
  letter-spacing: 0.06em;
  transition: color 0.15s;
}

.lang-btn.active {
  color: var(--color-black);
}

.lang-btn:hover {
  color: var(--color-black);
}

.lang-sep {
  color: var(--color-border);
  font-size: 0.8rem;
  user-select: none;
}

/* WhatsApp CTA — desktop nav */
.nav__wa {
  display: none;
  align-items: center;
  gap: 7px;
  background: var(--color-whatsapp);
  color: white;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 100px;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.nav__wa svg {
  width: 14px;
  height: 14px;
  fill: white;
  flex-shrink: 0;
}

.nav__wa:hover {
  opacity: 0.87;
}

/* Hamburger */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-black);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav__hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu drawer */
.nav__mobile {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  z-index: 999;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.32s ease, box-shadow 0.32s ease;
}

.nav__mobile.open {
  max-height: 520px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.07);
}

.nav__mobile-list {
  padding: 8px 0 20px;
}

.nav__mobile-link {
  display: block;
  font-size: 0.975rem;
  font-weight: 500;
  color: var(--color-black);
  padding: 14px 24px;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.15s, background 0.15s;
}

li:last-child .nav__mobile-link {
  border-bottom: none;
}

.nav__mobile-link:hover {
  color: var(--color-accent-blue);
  background: var(--color-bg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    150deg,
    rgba(18, 18, 18, 0.80) 0%,
    rgba(18, 18, 18, 0.52) 55%,
    rgba(18, 18, 18, 0.18) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 24px) 24px 72px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.58);
  margin-bottom: 20px;
}

.hero__headline {
  color: #ffffff;
  max-width: 560px;
  margin-bottom: 20px;
}

.hero__subheadline {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.76);
  max-width: 490px;
  margin-bottom: 40px;
  line-height: 1.72;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-whatsapp);
  color: #ffffff;
  font-size: 0.975rem;
  font-weight: 600;
  padding: 15px 28px;
  border-radius: 100px;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.38);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero__cta svg {
  width: 18px;
  height: 18px;
  fill: white;
  flex-shrink: 0;
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.52);
}

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  animation: nudgeDown 2.4s ease-in-out infinite;
}

.hero__scroll svg {
  width: 20px;
  height: 20px;
  stroke: rgba(255, 255, 255, 0.36);
}

@keyframes nudgeDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   WHAT IS OSMO
   ============================================ */
.what-is-osmo {
  padding: 72px 24px;
  background: var(--color-white);
}

.what-is-osmo__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
}

.what-is-osmo__text {
  text-align: center;
  max-width: 600px;
}

.section-label {
  display: inline-block;
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  margin-bottom: 14px;
}

.what-is-osmo__headline {
  color: var(--color-black);
  margin-bottom: 18px;
}

.what-is-osmo__body {
  font-size: 1.025rem;
  line-height: 1.78;
  color: var(--color-grey);
}

.what-is-osmo__visual {
  width: 100%;
  max-width: 460px;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.what-is-osmo__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform 0.5s ease;
}

.what-is-osmo__visual:hover img {
  transform: scale(1.04);
}

/* ============================================
   WHATSAPP FLOATING BUTTON (MOBILE ONLY)
   ============================================ */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 990;
  width: 58px;
  height: 58px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.48);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.wa-float svg {
  width: 30px;
  height: 30px;
  fill: white;
}

.wa-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.58);
}

/* ============================================
   BREAKPOINTS
   ============================================ */
@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }

  .nav__wa {
    display: flex;
  }

  .nav__hamburger {
    display: none;
  }

  .wa-float {
    display: none;
  }

  .nav__inner {
    padding: 0 40px;
  }

  .hero__content {
    padding-left: 40px;
    padding-right: 40px;
  }

  .what-is-osmo {
    padding: 104px 40px;
  }

  .what-is-osmo__inner {
    flex-direction: row;
    gap: 80px;
    align-items: center;
  }

  .what-is-osmo__text {
    text-align: left;
    flex: 1;
    max-width: none;
  }

  .what-is-osmo__visual {
    flex: 1;
    max-width: 460px;
    flex-shrink: 0;
  }
}

@media (min-width: 1024px) {
  .nav__inner {
    padding: 0 48px;
  }

  .hero__content {
    padding-left: 48px;
    padding-right: 48px;
  }
}

/* ============================================
   SHARED SECTION HEADER
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-label {
  display: block;
  margin-bottom: 12px;
}

.section-header__headline {
  color: var(--color-black);
}

/* ============================================
   BENEFITS
   ============================================ */
.benefits__banner {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefits__banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%);
}

.benefits__banner-overlay {
  position: absolute;
  inset: 0;
  background: rgba(14, 14, 14, 0.84);
}

.benefits__banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 64px 24px;
}

.benefits__banner-content .section-label {
  color: rgba(255, 255, 255, 0.55);
  display: block;
  margin-bottom: 12px;
}

.benefits__banner-headline {
  color: white;
}

.benefits__cards-wrap {
  background: var(--color-bg);
  padding: 52px 24px 72px;
}

.benefits__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.benefit-card {
  background: var(--color-white);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.benefit-card__num {
  display: block;
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  opacity: 0.1;
  line-height: 1;
  margin-bottom: -12px;
  letter-spacing: -0.05em;
}

.benefit-card__title {
  color: var(--color-black);
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.benefit-card__body {
  font-size: 0.935rem;
  line-height: 1.74;
}

@media (min-width: 640px) {
  .benefits__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (min-width: 768px) {
  .benefits__cards-wrap {
    padding: 64px 40px 100px;
  }
}

@media (min-width: 1024px) {
  .benefits__cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   PRODUCTS
   ============================================ */
.products {
  padding: 80px 24px;
  background: var(--color-white);
}

.products__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.product-card {
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s ease;
}

.product-card:hover {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

.product-card__img-wrap {
  aspect-ratio: 4 / 3;
  background: var(--color-bg);
  overflow: hidden;
  position: relative;
}

.product-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 28px;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card__img-wrap img {
  transform: scale(1.05);
}

.product-card__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-black);
  color: white;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 100px;
}

.product-card__body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.product-card__desc {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--color-grey);
  margin-bottom: 24px;
}

.product-card__specs {
  margin-bottom: 28px;
  flex: 1;
}

.product-card__spec {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

.product-card__spec:last-child {
  border-bottom: none;
}

.spec-label {
  color: var(--color-grey);
  font-weight: 500;
  flex-shrink: 0;
}

.spec-value {
  color: var(--color-black);
  font-weight: 500;
  text-align: right;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.product-card__price {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--color-whatsapp);
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 100px;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.product-card__cta svg {
  width: 14px;
  height: 14px;
  fill: white;
  flex-shrink: 0;
}

.product-card__cta:hover {
  opacity: 0.87;
}

@media (min-width: 768px) {
  .products {
    padding: 100px 40px;
  }

  .products__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  background: var(--color-black);
  padding: 80px 24px;
}

.how-it-works__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.how-it-works .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.how-it-works .section-label {
  color: rgba(255, 255, 255, 0.45);
}

.how-it-works .section-header__headline {
  color: white;
}

.how-it-works__sub {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.5);
  max-width: 480px;
  margin: 14px auto 0;
  line-height: 1.7;
}

.how-it-works__steps {
  display: flex;
  flex-direction: column;
}

.how-step {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  align-items: flex-start;
}

.how-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.how-step__num {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  background: rgba(33, 150, 243, 0.12);
  border: 1px solid rgba(33, 150, 243, 0.28);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.04em;
  margin-top: 1px;
}

.how-step__name {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: 4px;
}

.how-step__desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.65;
}

@media (min-width: 768px) {
  .how-it-works {
    padding: 100px 40px;
  }

  .how-it-works__steps {
    flex-direction: row;
    align-items: flex-start;
    gap: 0;
  }

  .how-step {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 28px;
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.07);
    flex: 1;
    gap: 14px;
  }

  .how-step:last-child {
    border-right: none;
  }

  .how-step__num {
    margin-top: 0;
  }

  .how-step__content {
    width: 100%;
  }
}

/* ============================================
   FILTERS & MAINTENANCE
   ============================================ */
.filters {
  padding: 80px 24px;
  background: var(--color-bg);
}

.filters__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.filters__tables {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.filter-table-block {
  background: var(--color-white);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.filter-table-block__header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 14px;
}

.filter-table-block__img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 6px;
}

.filter-table-block__title {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--color-black);
}

.filter-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.filter-table th {
  background: var(--color-bg);
  color: var(--color-grey);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.filter-table td {
  padding: 14px 24px;
  color: var(--color-black);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.filter-table tr:last-child td {
  border-bottom: none;
}

.filter-table tr:hover td {
  background: var(--color-bg);
}

.filter-table td:last-child {
  font-weight: 600;
  color: var(--color-accent-blue);
}

.filter-table td:last-child.notes-col {
  color: var(--color-grey);
  font-weight: 400;
}

@media (min-width: 768px) {
  .filters {
    padding: 100px 40px;
  }

  .filters__tables {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .filters__addons {
    grid-column: 1 / -1;
  }
}

/* ============================================
   ROI / SAVINGS
   ============================================ */
.roi {
  padding: 80px 24px;
  background: var(--color-black);
}

.roi__inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.roi .section-header {
  margin-bottom: 48px;
}

.roi .section-label {
  color: rgba(255, 255, 255, 0.45);
}

.roi .section-header__headline {
  color: white;
}

.roi__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 48px;
}

.roi-stat {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.roi-stat--featured {
  background: rgba(33, 150, 243, 0.1);
  border-color: rgba(33, 150, 243, 0.3);
}

.roi-stat__featured-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}

.roi-stat__big-num {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  line-height: 1;
  letter-spacing: -0.04em;
}

.roi-stat__big-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.roi-stat__unit {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  line-height: 1.2;
}

.roi-stat__val {
  font-size: 1.6rem;
  font-weight: 700;
  color: white;
  letter-spacing: -0.02em;
  line-height: 1;
}

.roi-stat__label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.roi__copy {
  max-width: 560px;
  margin: 0 auto 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.roi__body {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.72;
}

.roi__detail {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.72;
}

.roi__footnote {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.01em;
  line-height: 1.6;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  max-width: 460px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .roi__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .roi {
    padding: 100px 40px;
  }
}

/* ============================================
   FAQ
   ============================================ */
.faq {
  padding: 80px 24px;
  background: var(--color-bg);
}

.faq__inner {
  max-width: 720px;
  margin: 0 auto;
}

.faq__list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--color-white);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-main);
}

.faq-item__q {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--color-black);
  line-height: 1.45;
}

.faq-item__icon {
  width: 18px;
  height: 18px;
  color: var(--color-grey);
  flex-shrink: 0;
  transition: transform 0.28s ease, color 0.2s;
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(180deg);
  color: var(--color-accent-blue);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.32s ease;
}

.faq-item.is-open .faq-item__answer {
  max-height: 300px;
}

.faq-item__answer p {
  font-size: 0.9rem;
  color: var(--color-grey);
  line-height: 1.74;
  padding: 0 24px 22px;
}

.faq-item__btn:hover .faq-item__q {
  color: var(--color-accent-blue);
}

@media (min-width: 768px) {
  .faq {
    padding: 100px 40px;
  }

  .faq-item__q {
    font-size: 1.025rem;
  }

  .faq-item__btn {
    padding: 26px 32px;
  }

  .faq-item__answer p {
    padding: 0 32px 26px;
    font-size: 0.935rem;
  }
}

/* ============================================
   CONTACT / CTA
   ============================================ */
.contact {
  padding: 80px 24px;
  background: var(--color-white);
}

.contact__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact__cta-block {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 72px;
}

.contact__headline {
  color: var(--color-black);
  margin-bottom: 16px;
  margin-top: 12px;
}

.contact__body {
  font-size: 1.025rem;
  color: var(--color-grey);
  line-height: 1.72;
  margin-bottom: 36px;
}

.contact__wa-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-whatsapp);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  padding: 16px 32px;
  border-radius: 100px;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.38);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact__wa-btn svg {
  width: 18px;
  height: 18px;
  fill: white;
  flex-shrink: 0;
}

.contact__wa-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.52);
}

.contact__info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 720px;
  margin: 0 auto;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.contact__info-head {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-grey);
  margin-bottom: 20px;
}

.contact__info-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact__info-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-black);
  font-weight: 500;
  transition: color 0.2s;
}

.contact__info-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-grey);
}

a.contact__info-link:hover {
  color: var(--color-accent-blue);
}

.contact__info-static {
  cursor: default;
}

.contact__address {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.contact__address strong {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-black);
}

.contact__address span {
  font-size: 0.875rem;
  color: var(--color-grey);
  line-height: 1.55;
}

@media (min-width: 640px) {
  .contact__info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
  }
}

@media (min-width: 768px) {
  .contact {
    padding: 100px 40px;
  }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-black);
  padding: 36px 24px;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  transition: color 0.2s;
}

.footer__logo:hover {
  color: white;
}

.footer__copy {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.5;
}

.footer__loc {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.22);
  line-height: 1.5;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    gap: 0;
  }

  .footer__logo {
    margin-bottom: 0;
  }

  .footer__copy {
    order: 3;
  }
}

/* ============================================
   FOCUS VISIBLE — ACCESSIBILITY
   ============================================ */
:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 3px;
  border-radius: 4px;
}

.faq-item__btn:focus-visible {
  outline-offset: -2px;
  border-radius: 0;
}

.nav__logo:focus-visible,
.footer__logo:focus-visible {
  border-radius: 6px;
}

.hero__cta:focus-visible,
.contact__wa-btn:focus-visible,
.product-card__cta:focus-visible,
.nav__wa:focus-visible {
  outline-color: white;
  outline-offset: 4px;
}

/* ============================================
   MOBILE — EXTRA FIXES
   ============================================ */

/* Filter tables: allow horizontal scroll on narrow screens */
@media (max-width: 767px) {
  .filter-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Product specs: stack label/value vertically on very narrow screens */
  .product-card__spec {
    flex-wrap: wrap;
    gap: 2px 16px;
  }

  .spec-value {
    text-align: left;
    flex-basis: 100%;
  }

  /* Contact links: allow long email to wrap */
  .contact__info-link {
    word-break: break-all;
  }

  /* Hero: reduce padding so CTA is never clipped */
  .hero__content {
    padding-bottom: 100px;
  }

  /* ROI body text: generous line-height on small screens */
  .roi__body {
    font-size: 1rem;
  }
}

/* Ensure touch targets are 44×44px minimum */
.lang-btn {
  min-height: 44px;
  min-width: 36px;
}

.nav__hamburger {
  min-height: 44px;
  min-width: 44px;
}