/* ============================================================
   Vishwas Silk — style.css
   Static single-page site · plain CSS3 · no frameworks
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  --primary-green: #315c3b;
  --dark-green: #1e3a28;
  --silk-gold: #c79a43;
  --cream: #f8f3e8;
  --light-beige: #efe6d3;
  --dark-text: #1d241f;
  --muted-text: #66706a;
  --white: #ffffff;
  --whatsapp: #25d366;
  --whatsapp-dark: #128c7e;
  --error: #b03a2e;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-sm: 0 6px 18px rgba(30, 58, 40, 0.06);
  --shadow-md: 0 10px 28px rgba(30, 58, 40, 0.07);
  --shadow-lg: 0 24px 48px rgba(30, 58, 40, 0.18);
  --font-heading: 'Manrope', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
  --container-max: 1200px;
  --header-height: 76px;
}

/* ---------- Reset & base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--dark-text);
  background: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--dark-green);
  line-height: 1.25;
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
}

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

a {
  color: var(--primary-green);
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
}

::selection {
  background: var(--silk-gold);
  color: var(--dark-text);
}

/* Visible keyboard focus */
:focus-visible {
  outline: 3px solid var(--silk-gold);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Layout utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 24px);
}

.section {
  padding: clamp(72px, 9vw, 110px) 0;
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.section-head {
  max-width: 660px;
  margin: 0 auto clamp(36px, 5vw, 56px);
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.5rem);
}

.section-head p:not(.section-eyebrow) {
  color: var(--muted-text);
}

.section-eyebrow {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silk-gold);
  margin: 0 0 12px;
}

.text-gold {
  color: var(--silk-gold);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  padding: 15px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-gold {
  background: var(--silk-gold);
  color: var(--dark-text);
  box-shadow: 0 10px 24px rgba(199, 154, 67, 0.32);
}

.btn-gold:hover {
  background: #b78a35;
  box-shadow: 0 14px 30px rgba(199, 154, 67, 0.4);
}

.btn-primary {
  background: var(--primary-green);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(49, 92, 59, 0.28);
}

.btn-primary:hover {
  background: var(--dark-green);
}

.btn-whatsapp {
  background: var(--whatsapp-dark);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(18, 140, 126, 0.28);
}

.btn-whatsapp:hover {
  background: #0e6d62;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 300;
  background: var(--dark-green);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 12px 18px;
  border-radius: 0 0 10px 0;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}

/* ============================================================
   Header & navigation
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--light-beige);
  transition: box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 6px 24px rgba(30, 58, 40, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 44px;
  height: 44px;
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--dark-green);
}

.brand-text small {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-text);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list a {
  display: inline-block;
  padding: 8px 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--dark-text);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-list a:hover {
  color: var(--primary-green);
  background: var(--cream);
}

/* Hamburger (hidden on desktop) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--light-beige);
  border-radius: 10px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark-green);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  color: var(--white);
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    rgba(21, 37, 27, 0.94) 0%,
    rgba(21, 37, 27, 0.82) 45%,
    rgba(21, 37, 27, 0.55) 100%
  );
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding: clamp(90px, 13vh, 150px) 0 clamp(80px, 10vh, 130px);
}

.hero-content {
  max-width: 680px;
}

.hero-logo-frame {
  display: grid;
  place-items: center;
  width: min(38vw, 400px);
  margin-inline: auto;
}

.hero-logo {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.45));
}

.hero-eyebrow {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silk-gold);
  margin: 0 0 18px;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 1.12rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0 0 42px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.95);
}

.hero-trust svg {
  width: 20px;
  height: 20px;
  color: var(--silk-gold);
  flex: none;
}

/* ============================================================
   About
   ============================================================ */
.about {
  background: var(--cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.about-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-content h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
}

.about-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.about-list svg {
  width: 22px;
  height: 22px;
  color: var(--primary-green);
  flex: none;
  margin-top: 4px;
}

/* ============================================================
   Products
   ============================================================ */
.products {
  background: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--light-beige);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(30, 58, 40, 0.13);
}

/* Featured main product */
.product-featured {
  border: 2px solid var(--silk-gold);
}

.product-featured::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--silk-gold);
  z-index: 2;
}

.product-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: var(--silk-gold);
  color: var(--dark-text);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
}

.product-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--cream);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-media img {
  transform: scale(1.04);
}

.product-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 24px;
}

.product-body h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.product-body p {
  color: var(--muted-text);
  margin-bottom: 20px;
}

.product-body .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ============================================================
   Industries
   ============================================================ */
.industries {
  background: var(--light-beige);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
}

.industry-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  background: var(--white);
  border: 1px solid rgba(30, 58, 40, 0.08);
  border-radius: 18px;
  padding: 30px 18px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(30, 58, 40, 0.1);
}

.industry-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  background: var(--cream);
  border-radius: 14px;
  color: var(--primary-green);
}

.industry-icon svg {
  width: 28px;
  height: 28px;
}

.industry-card h3 {
  font-size: 1rem;
  margin: 0;
}

.industry-card p {
  font-size: 0.85rem;
  color: var(--muted-text);
  margin: 0;
}

/* ============================================================
   Why choose us
   ============================================================ */
.why {
  background: var(--dark-green);
}

.why .section-head h2 {
  color: var(--white);
}

.why .section-head p:not(.section-eyebrow) {
  color: rgba(255, 255, 255, 0.72);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.why-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 30px 26px;
}

.why-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: rgba(199, 154, 67, 0.16);
  color: var(--silk-gold);
  border-radius: 14px;
  margin-bottom: 18px;
}

.why-icon svg {
  width: 26px;
  height: 26px;
}

.why-card h3 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.why-card p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
  margin: 0;
}

/* ============================================================
   Home blog section
   ============================================================ */
.home-blog {
  background: var(--cream);
}

.home-blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.home-blog-loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px;
  color: var(--muted-text);
}

.home-blog-card {
  background: var(--white);
  border: 1px solid var(--light-beige);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.home-blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(30, 58, 40, 0.13);
}

.home-blog-card-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--cream);
}

.home-blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.home-blog-card:hover .home-blog-card-media img {
  transform: scale(1.05);
}

.home-blog-card-body {
  padding: 24px;
}

.home-blog-card-cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--silk-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.home-blog-card-title {
  font-size: 1.15rem;
  color: var(--dark-green);
  margin-bottom: 10px;
  line-height: 1.3;
  font-family: var(--font-heading);
  font-weight: 700;
}

.home-blog-card-excerpt {
  color: var(--muted-text);
  font-size: 0.93rem;
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-blog-card-meta {
  font-size: 0.82rem;
  color: var(--muted-text);
}

.home-blog-cta {
  text-align: center;
  margin-top: 36px;
}

/* ============================================================
   CTA banner
   ============================================================ */
.cta {
  background: var(--primary-green);
  color: var(--white);
  text-align: center;
}

.cta-inner {
  max-width: 760px;
  margin-inline: auto;
}

.cta h2 {
  color: var(--white);
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
}

.cta p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* ============================================================
   App download section
   ============================================================ */
.app {
  background: var(--white);
}

.app-card {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
  background: var(--dark-green);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 6vw, 64px) clamp(24px, 5vw, 56px);
  box-shadow: var(--shadow-lg);
}

.app-icon {
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  background: var(--white);
  border-radius: 22px;
  box-shadow: var(--shadow-md);
  margin: 0 auto 24px;
}

.app-icon svg {
  width: 52px;
  height: 52px;
  fill: #3ddc84;
}

.app-card h2 {
  color: var(--white);
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
}

.app-lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.02rem;
  max-width: 520px;
  margin: 0 auto 28px;
}

.btn-play {
  background: var(--white);
  color: var(--dark-green);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.btn-play:hover {
  background: var(--cream);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.34);
}

.btn-play svg {
  width: 22px;
  height: 22px;
  fill: #3ddc84;
}

.app-note {
  margin: 18px 0 0;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ============================================================
   Contact & enquiry form
   ============================================================ */
.contact {
  background: var(--cream);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

.contact-info,
.enquiry-form {
  background: var(--white);
  border: 1px solid var(--light-beige);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 36px);
  box-shadow: var(--shadow-md);
}

.contact-list {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-icon {
  flex: none;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--cream);
  color: var(--primary-green);
  border-radius: var(--radius-md);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-list strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted-text);
  margin-bottom: 3px;
}

.contact-list a {
  color: var(--dark-text);
  text-decoration: none;
  font-weight: 500;
}

.contact-list a:hover {
  color: var(--primary-green);
  text-decoration: underline;
}

.contact-list .value {
  word-break: break-word;
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark-text);
}

.form-control {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--dark-text);
  background: var(--cream);
  border: 1.5px solid transparent;
  border-radius: 10px;
  padding: 13px 15px;
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control::placeholder {
  color: #8b928c;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-green);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(49, 92, 59, 0.14);
}

.form-control.is-invalid {
  border-color: var(--error);
  background: #fdf6f5;
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.field-error {
  display: none;
  margin: 0;
  font-size: 0.82rem;
  color: var(--error);
}

.form-group.is-invalid .field-error {
  display: block;
}

.form-submit-row {
  margin-top: 22px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--muted-text);
  margin: 14px 0 0;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--dark-green);
  color: rgba(255, 255, 255, 0.82);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: clamp(28px, 4vw, 48px);
  padding: clamp(56px, 7vw, 80px) clamp(16px, 4vw, 24px) 40px;
}

.footer-brand .brand-text strong {
  color: var(--white);
}

.footer-logo-chip {
  width: 52px;
  height: 52px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--white);
  border-radius: 50%;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.22);
}

.footer-logo-chip .brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.footer-brand .brand-text small {
  color: rgba(255, 255, 255, 0.6);
}

.footer-brand p {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.75);
  margin: 16px 0 0;
  max-width: 320px;
}

.footer-col h3 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.footer-links li + li {
  margin-top: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.93rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--silk-gold);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact li + li {
  margin-top: 12px;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  color: var(--silk-gold);
  flex: none;
  margin-top: 4px;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  word-break: break-word;
}

.footer-contact a:hover {
  color: var(--silk-gold);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
  margin: 0;
}

/* ============================================================
   Floating WhatsApp button
   ============================================================ */
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  background: var(--whatsapp);
  color: var(--white);
  border-radius: 50%;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.05);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
}

/* ============================================================
   Reveal-on-scroll (added by JS)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 940px) {
  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--light-beige);
    box-shadow: 0 18px 32px rgba(30, 58, 40, 0.12);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height 0.35s ease, visibility 0.35s;
  }

  .primary-nav.is-open {
    max-height: 560px;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 18px 4px;
  }

  .nav-list a {
    display: block;
    padding: 14px 10px;
    font-size: 1.02rem;
  }

  .btn-header {
    margin: 6px 18px 18px;
    justify-content: center;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-logo-frame {
    width: min(64vw, 320px);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  .whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 52px;
    height: 52px;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .product-card,
  .industry-card,
  .whatsapp-float,
  .brand-logo,
  .product-media img {
    transition: none;
  }
}