/* ==========================================================================
   Thangam Traditional Snacks — Stylesheet
   Organized: Variables -> Reset -> Utilities -> Layout -> Components ->
              Sections -> Animations -> Responsive
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* 1. CSS VARIABLES (edit brand colors / spacing here)                     */
/* ---------------------------------------------------------------------- */
:root {
  /* Colors — exact Thangam logo palette: navy + cyan */
  --color-navy: #0b2b45;
  --color-cyan: #6fccdd;

  --color-bg-base: #f4fafb;
  --color-bg-surface: #ffffff;
  --color-accent: var(--color-navy); /* primary interactive color: buttons, links, icons on light surfaces */
  --color-accent-dark: #1f4b63; /* navy/cyan blend — hover states + highlighted text, stays high-contrast */
  --color-highlight: var(--color-cyan); /* decorative fills + accents on dark navy surfaces or paired with navy text */
  --color-heading: var(--color-navy);
  --color-text-soft: #3e5a6b;
  --color-card-tint: #e7f3f6;
  --color-border-soft: #cfe6ec;
  --color-white: #ffffff;
  --color-success: #2fa84f;

  /* Shadows */
  --shadow-soft: 0 6px 24px rgba(11, 43, 69, 0.08);
  --shadow-medium: 0 12px 32px rgba(11, 43, 69, 0.12);
  --shadow-hover: 0 18px 40px rgba(11, 43, 69, 0.22);

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Poppins', Arial, sans-serif;

  /* Layout */
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------------------------------------------------------------------- */
/* 2. RESET & BASE                                                        */
/* ---------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-base);
  color: var(--color-text-soft);
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.25;
  font-weight: 700;
}

/* Visible focus ring for keyboard navigation (accessibility) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------- */
/* 3. UTILITIES                                                           */
/* ---------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: var(--space-xl);
}

.section--alt {
  background-color: var(--color-bg-surface);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-soft);
}

.text-tamil {
  font-size: 0.95rem;
  color: var(--color-text-soft);
  opacity: 0.9;
  margin-top: 0.35rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.9rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:active {
  transform: translateY(-1px);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-hover);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-heading);
  border: 2px solid var(--color-heading);
}

.btn--outline:hover {
  background-color: var(--color-heading);
  color: var(--color-white);
}

.btn--whatsapp {
  background-color: var(--color-success);
  color: var(--color-white);
}

.btn--whatsapp:hover {
  background-color: #248a41;
  box-shadow: var(--shadow-hover);
}

.btn--sm {
  padding: 0.6rem 1.3rem;
  font-size: 0.88rem;
  width: 100%;
}

.btn svg {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

/* Fade / slide-up scroll animation (JS toggles .is-visible via IntersectionObserver) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--transition-medium), transform 0.7s var(--transition-medium);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---------------------------------------------------------------------- */
/* 4. HEADER / NAVIGATION                                                 */
/* ---------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background-color: rgba(244, 250, 251, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-soft);
  border-bottom-color: var(--color-border-soft);
  background-color: rgba(244, 250, 251, 0.97);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  z-index: 910;
}

.nav-toggle span {
  width: 26px;
  height: 2.5px;
  background-color: var(--color-heading);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-heading);
  position: relative;
  padding-block: 0.25rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: var(--color-highlight);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
}

/* ---------------------------------------------------------------------- */
/* 5. HERO                                                                */
/* ---------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  /* Stands alone until hero.jpg is added — uncomment the <img> in index.html to swap in a photo */
  background: radial-gradient(circle at 78% 22%, rgba(111, 204, 221, 0.4), transparent 45%),
    radial-gradient(circle at 28% 78%, rgba(11, 43, 69, 0.14), transparent 42%),
    linear-gradient(135deg, #eef8fa 0%, #dcf3f7 100%);
}

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

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(244, 250, 251, 0.96) 0%,
    rgba(244, 250, 251, 0.82) 45%,
    rgba(244, 250, 251, 0.35) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero-logo {
  height: 84px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  margin-bottom: var(--space-xs);
}

.hero-title span {
  color: var(--color-accent-dark);
}

.hero-tagline {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--color-text-soft);
  margin-bottom: 0.5rem;
}

.hero-tagline-tamil {
  font-size: 1.05rem;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--space-md);
}

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-accent);
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  margin-top: 0.25rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--color-heading);
  border-radius: var(--radius-pill);
  z-index: 1;
  opacity: 0.6;
}

.scroll-indicator::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  background-color: var(--color-heading);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: scrollDot 1.8s infinite;
}

@keyframes scrollDot {
  0% { opacity: 1; transform: translate(-50%, 0); }
  70% { opacity: 0; transform: translate(-50%, 14px); }
  100% { opacity: 0; transform: translate(-50%, 14px); }
}

/* ---------------------------------------------------------------------- */
/* 6. ABOUT                                                               */
/* ---------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.about-copy p {
  margin-bottom: var(--space-sm);
}

.about-copy .text-tamil {
  margin-bottom: var(--space-md);
}

.about-points {
  display: grid;
  gap: 0.75rem;
}

.about-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-weight: 500;
  color: var(--color-heading);
}

.about-points svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.about-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform var(--transition-medium);
}

.about-media:hover img {
  transform: scale(1.06);
}

/* Stand-in for image slots that don't have a real photo yet.
   Drop a file into assets/ and uncomment the matching <img> in index.html to replace. */
.photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: repeating-linear-gradient(
    135deg,
    var(--color-card-tint) 0 14px,
    var(--color-bg-surface) 14px 28px
  );
  border: 2px dashed var(--color-border-soft);
}

.photo-placeholder--4-3 {
  aspect-ratio: 4 / 3;
}

.photo-placeholder svg {
  width: 36px;
  height: 36px;
  color: var(--color-accent);
  opacity: 0.55;
}

.photo-placeholder span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-soft);
  opacity: 0.75;
}

/* ---------------------------------------------------------------------- */
/* 7. WHY CHOOSE US                                                       */
/* ---------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-md);
}

.feature-card {
  background-color: var(--color-card-tint);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin-inline: auto;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-surface);
  border-radius: 50%;
  color: var(--color-accent);
}

.feature-icon svg {
  width: 30px;
  height: 30px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-heading);
  margin-bottom: 0.4rem;
}

.feature-text {
  font-size: 0.92rem;
}

/* ---------------------------------------------------------------------- */
/* 8. PRODUCTS                                                            */
/* ---------------------------------------------------------------------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.product-card {
  background-color: var(--color-bg-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.product-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background-color: var(--color-card-tint);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.product-card:hover .product-media img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-highlight);
  color: var(--color-heading);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
}

.product-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 0.5rem;
}

.product-title {
  font-size: 1.2rem;
}

.product-desc {
  font-size: 0.9rem;
  flex-grow: 1;
}

.product-body .btn {
  margin-top: 0.5rem;
}

/* ---------------------------------------------------------------------- */
/* 9. MANUFACTURING TIMELINE                                              */
/* ---------------------------------------------------------------------- */
.process-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.process-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.process-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-highlight), var(--color-border-soft));
}

.timeline-step {
  position: relative;
  padding-bottom: var(--space-md);
}

.timeline-step:last-child {
  padding-bottom: 0;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: -2.5rem;
  top: 2px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-bg-surface);
  border: 2px solid var(--color-accent);
}

.timeline-step::after {
  content: attr(data-step);
  position: absolute;
  left: -2.5rem;
  top: 2px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-heading);
  margin-bottom: 0.2rem;
}

.timeline-text {
  font-size: 0.9rem;
}

/* ---------------------------------------------------------------------- */
/* 10. GALLERY                                                            */
/* ---------------------------------------------------------------------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  box-shadow: var(--shadow-soft);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.gallery-item:hover img {
  transform: scale(1.12);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 43, 69, 0.5), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ---------------------------------------------------------------------- */
/* 11. CERTIFICATIONS                                                     */
/* ---------------------------------------------------------------------- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.cert-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
}

.cert-card img {
  width: 56px;
  height: 56px;
  margin-inline: auto;
  margin-bottom: var(--space-sm);
}

.cert-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
}

/* ---------------------------------------------------------------------- */
/* 12. TESTIMONIALS                                                       */
/* ---------------------------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.testimonial-card {
  background-color: var(--color-card-tint);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.testimonial-rating {
  color: var(--color-accent);
  font-size: 1rem;
  letter-spacing: 2px;
}

.testimonial-quote {
  font-style: italic;
  font-size: 0.96rem;
  flex-grow: 1;
}

.testimonial-quote.text-tamil {
  font-style: normal;
  flex-grow: 0;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
}

.author-name {
  font-weight: 600;
  color: var(--color-heading);
  font-size: 0.92rem;
}

.author-location {
  font-size: 0.8rem;
  opacity: 0.75;
}

/* ---------------------------------------------------------------------- */
/* 13. FAQ                                                                */
/* ---------------------------------------------------------------------- */
.faq-list {
  max-width: 780px;
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}

.faq-item {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  font-weight: 600;
  color: var(--color-heading);
  text-align: left;
  font-size: 1rem;
}

.faq-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-accent);
  top: 50%;
  left: 50%;
  transition: transform var(--transition-fast);
}

.faq-icon::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.faq-item[open] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg) scaleY(0);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.94rem;
}

.faq-question::-webkit-details-marker {
  display: none;
}

/* ---------------------------------------------------------------------- */
/* 14. CONTACT                                                           */
/* ---------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.contact-info {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background-color: var(--color-card-tint);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
}

.contact-row svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.7;
}

.contact-value {
  font-weight: 600;
  color: var(--color-heading);
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  min-height: 360px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

/* ---------------------------------------------------------------------- */
/* 15. FOOTER                                                             */
/* ---------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-heading);
  color: #e8f5f8;
  padding-block: var(--space-lg) var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(232, 245, 248, 0.15);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.footer-brand .brand-name {
  color: #e8f5f8;
}

.footer-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.footer-tagline {
  font-size: 0.9rem;
  opacity: 0.75;
  max-width: 320px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: #e8f5f8;
  margin-bottom: 0.9rem;
}

.footer-links {
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-highlight);
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(232, 245, 248, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-highlight);
  color: var(--color-heading);
  transform: translateY(-3px);
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: var(--space-md);
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 1.75rem;
  bottom: 6rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--color-heading);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-medium);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast),
    visibility var(--transition-fast);
  z-index: 800;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-accent-dark);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* Floating WhatsApp button */
.whatsapp-float {
  position: fixed;
  right: 1.75rem;
  bottom: 1.75rem;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: var(--color-success);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-medium);
  z-index: 800;
  animation: pulseWhatsapp 2.6s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-hover);
}

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

@keyframes pulseWhatsapp {
  0% { box-shadow: 0 0 0 0 rgba(47, 168, 79, 0.45), var(--shadow-medium); }
  70% { box-shadow: 0 0 0 14px rgba(47, 168, 79, 0), var(--shadow-medium); }
  100% { box-shadow: 0 0 0 0 rgba(47, 168, 79, 0), var(--shadow-medium); }
}

/* ---------------------------------------------------------------------- */
/* 16. RESPONSIVE                                                         */
/* ---------------------------------------------------------------------- */
@media (max-width: 960px) {
  .about-grid,
  .process-wrap,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .process-media {
    order: -1;
  }

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background-color: var(--color-bg-surface);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-xl) var(--space-lg);
    box-shadow: var(--shadow-medium);
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    z-index: 905;
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle[aria-expanded='true'] span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }

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

  .nav-toggle[aria-expanded='true'] span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }

  .hero-stats {
    gap: var(--space-md);
  }

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

@media (max-width: 560px) {
  .section {
    padding-block: var(--space-lg);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .whatsapp-float {
    right: 1.1rem;
    bottom: 1.1rem;
    width: 52px;
    height: 52px;
  }

  .back-to-top {
    right: 1.1rem;
    bottom: 5.4rem;
  }
}

@media (max-width: 400px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
}