/* ============================================
   PBS ALUMINIUM — Design System
   Vidraçaria e Esquadrias · Pelotas/RS
   Colors extracted from brand logo
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand Colors (from logo) */
  --color-dark: #1A1F2E;
  --color-dark-lighter: #242B3D;
  --color-primary: #3D5A80;
  --color-primary-light: #5B8DB8;
  --color-primary-dark: #2B4162;
  --color-silver: #C0C8D0;
  --color-silver-light: #E8ECF0;

  /* Surfaces */
  --color-surface: #F5F7FA;
  --color-surface-warm: #F8F6F3;
  --color-white: #FFFFFF;
  --color-border: #E2E6EA;

  /* Text */
  --color-text: #1A1F2E;
  --color-text-secondary: #5A6A7A;
  --color-text-muted: #8A95A3;
  --color-text-on-dark: #F0F2F5;
  --color-text-on-dark-muted: #9AA5B4;

  /* Functional */
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1EBE5A;
  --color-star: #F59E0B;
  --color-success: #10B981;
  --color-google: #4285F4;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;

  /* Spacing (8-point grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 900px;
  --header-height: 72px;

  /* Borders */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26, 31, 46, 0.06);
  --shadow-md: 0 4px 12px rgba(26, 31, 46, 0.08);
  --shadow-lg: 0 8px 30px rgba(26, 31, 46, 0.12);
  --shadow-xl: 0 16px 50px rgba(26, 31, 46, 0.16);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 500ms;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h4 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  max-width: 65ch;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-silver));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-20) 0;
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header p {
  margin: var(--space-4) auto 0;
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  max-width: 55ch;
}

.section--dark .section-header p {
  color: var(--color-text-on-dark-muted);
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-3);
}

.section--dark .section-label {
  color: var(--color-silver);
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header__logo img {
  height: 44px;
  width: 44px;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.header__logo-text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-dark);
  line-height: 1.2;
}

.header__logo-text span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.header__nav {
  display: none;
  gap: var(--space-8);
  align-items: center;
}

.header__nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--color-primary);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__cta {
  display: none;
}

/* Mobile Menu Toggle */
.header__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
  z-index: 1001;
}

.header__toggle span {
  display: block;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 1px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

.header__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-dark);
  transform: translateY(20px);
  opacity: 0;
  transition: transform var(--duration-slow) var(--ease-out),
              opacity var(--duration-slow) var(--ease-out),
              color var(--duration-fast);
}

.mobile-menu.active a {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu a:hover {
  color: var(--color-primary);
}

.mobile-menu.active a:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.active a:nth-child(2) { transition-delay: 150ms; }
.mobile-menu.active a:nth-child(3) { transition-delay: 200ms; }
.mobile-menu.active a:nth-child(4) { transition-delay: 250ms; }
.mobile-menu.active a:nth-child(5) { transition-delay: 300ms; }
.mobile-menu.active a:nth-child(6) { transition-delay: 350ms; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

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

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-primary-light);
  color: var(--color-white);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

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

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-dark);
  transform: translateY(-1px);
}

.btn--large {
  padding: var(--space-5) var(--space-10);
  font-size: 1.0625rem;
}

.btn svg,
.btn .btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-dark);
  overflow: hidden;
  padding-top: var(--header-height);
}

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

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  opacity: 0.6;
  filter: brightness(0.65);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(26, 31, 46, 0.7) 0%,
    rgba(26, 31, 46, 0.85) 60%,
    rgba(26, 31, 46, 0.95) 100%
  );
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
  font-size: 0.875rem;
  color: var(--color-silver-light);
  backdrop-filter: blur(8px);
}

.hero__badge .stars {
  color: var(--color-star);
  letter-spacing: 2px;
}

.hero__title {
  font-size: clamp(2.75rem, 7vw, 5rem);
  color: var(--color-white);
  margin-bottom: var(--space-6);
  line-height: 1.05;
}

.hero__title em {
  font-style: normal;
  color: var(--color-primary-light);
  white-space: nowrap;
}

.hero__subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--color-text-on-dark-muted);
  max-width: 50ch;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-on-dark-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: float 2s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-primary-light), transparent);
}

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

/* --- Trust Bar --- */
.trust-bar {
  background-color: var(--color-dark-lighter);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-6) 0;
}

.trust-bar__inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  text-align: center;
}

.trust-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.trust-bar__number {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-white);
}

.trust-bar__label {
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-6);
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}



.service-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
  transition: all var(--duration-normal) var(--ease-out);
}

.service-card:hover .service-card__icon {
  background: var(--color-primary);
  color: var(--color-white);
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
}

.service-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.0625rem;
  margin-bottom: var(--space-3);
  color: var(--color-dark);
}

.service-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.service-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--duration-normal) var(--ease-out);
}

.service-card:hover .service-card__link {
  gap: var(--space-3);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about__text {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.about__stat {
  text-align: center;
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
}

.about__stat-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-primary);
  display: block;
}

.about__stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4/3;
  cursor: pointer;
}

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

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 31, 46, 0.7) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
}

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

.gallery-item__label {
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
}

.gallery-item--featured {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.testimonial-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-4);
  color: var(--color-star);
}

.testimonial-card__stars svg {
  width: 18px;
  height: 18px;
}

.testimonial-card__text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.testimonial-card__name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-dark);
}

.testimonial-card__source {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.testimonial-card__source svg {
  width: 14px;
  height: 14px;
  color: var(--color-google);
}

/* --- FAQ Section --- */
.faq-list {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--duration-normal) var(--ease-out);
}

.faq-item.active {
  border-color: var(--color-primary);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
  text-align: left;
  background: var(--color-white);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
}

.faq-item__question:hover {
  color: var(--color-primary);
}

.faq-item__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--duration-normal) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.faq-item.active .faq-item__icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
}

.faq-item__answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  margin: 0 auto var(--space-8);
  font-size: 1.125rem;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-16) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__logo img {
  height: 40px;
  width: 40px;
  border-radius: var(--radius-md);
}

.footer__logo-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-white);
}

.footer__desc {
  font-size: 0.9375rem;
  color: var(--color-text-on-dark-muted);
  line-height: 1.7;
  max-width: 35ch;
}

.footer__heading {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: 0.9375rem;
  color: var(--color-text-on-dark-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__links a:hover {
  color: var(--color-primary-light);
}

.footer__contact-item {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.9375rem;
  color: var(--color-text-on-dark-muted);
}

.footer__contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-primary-light);
  margin-top: 2px;
}

.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-on-dark-muted);
  transition: all var(--duration-normal) var(--ease-out);
}

.footer__social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer__social a svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6) 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
}

/* --- WhatsApp Float --- */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 900;
  width: 56px;
  height: 56px;
  background-color: var(--color-whatsapp);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--duration-normal) var(--ease-out);
  animation: pulse-whatsapp 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  color: var(--color-white);
}

@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 480ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: 560ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(9) { transition-delay: 640ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(10) { transition-delay: 720ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(11) { transition-delay: 800ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(12) { transition-delay: 880ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(13) { transition-delay: 960ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(n+14) { transition-delay: 1040ms; opacity: 1; transform: translateY(0); }

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(8px);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  transform: scale(0.9);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.lightbox.active .lightbox__img {
  transform: scale(1);
}

.lightbox__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--duration-fast);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__close svg {
  width: 24px;
  height: 24px;
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: var(--space-4) 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-primary);
  transition: color var(--duration-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary-dark);
}

.breadcrumb .sep {
  margin: 0 var(--space-2);
  color: var(--color-text-muted);
}

/* --- Page Hero (Service Pages, etc.) --- */
.page-hero {
  background-color: var(--color-dark);
  padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.page-hero p {
  color: var(--color-text-on-dark-muted);
  font-size: 1.125rem;
  max-width: 55ch;
  margin: 0 auto;
}

/* --- Service Detail Page --- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

.service-detail__content h2 {
  margin-bottom: var(--space-4);
}

.service-detail__content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.service-detail__features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
}

.feature-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-success);
  margin-top: 2px;
}

.feature-item__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.feature-item__text strong {
  color: var(--color-dark);
}

/* --- Related Services --- */
.related-services {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
}

.related-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
}

.related-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.related-card svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.related-card span {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-dark);
}

/* --- Map Container --- */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  height: 350px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: 0.9375rem;
}

.comparison-table th {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-4);
  text-align: left;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
}

.comparison-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.comparison-table tr:hover td {
  background: var(--color-surface);
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }

  .stagger-children > * {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}

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

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

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

@media (min-width: 768px) {
  .trust-bar__inner {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }

  .header__cta {
    display: inline-flex;
  }

  .header__toggle {
    display: none;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-detail {
    grid-template-columns: 2fr 1fr;
  }
}

/* ============================================
   PBS ALUMINIUM — CRO & Interactive Features
   ============================================ */

/* Header rating badge (CRO) */
.header__rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-star);
  background: var(--color-surface);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  margin-left: var(--space-4);
}
.header__rating svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}
@media (max-width: 768px) {
  .header__rating {
    margin-left: auto;
    margin-right: var(--space-2);
  }
}
@media (max-width: 480px) {
  .header__rating span {
    display: none; /* Show only stars on tiny mobile screens */
  }
}

/* Before/After Slider */
.before-after {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  user-select: none;
  margin-top: var(--space-6);
}
.before-after__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.before-after__overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  /* width will be controlled by JS */
  width: 50%;
  border-right: 3px solid var(--color-white);
}
.before-after__overlay img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: none; /* Prevent constraint */
}
.before-after__slider {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: ew-resize;
  z-index: 10;
  width: 100%;
  height: 100%;
}
.before-after__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%; /* controlled by JS */
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: var(--color-white);
  border: 3px solid var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translate(-50%, -50%);
  top: 50%;
  z-index: 5;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}
.before-after__handle svg {
  width: 20px;
  height: 20px;
}
.before-after__label {
  position: absolute;
  bottom: var(--space-4);
  background: rgba(26, 31, 46, 0.8);
  color: var(--color-white);
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  z-index: 4;
}
.before-after__label--before {
  left: var(--space-4);
}
.before-after__label--after {
  right: var(--space-4);
}

/* Fast Budget Form Section */
.budget-section {
  padding: var(--space-20) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.budget-box {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .budget-box {
    grid-template-columns: 1.2fr 1fr;
  }
}
.budget-info {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-6);
}
.budget-info h3 {
  color: var(--color-white);
  font-size: 2rem;
  margin-bottom: var(--space-2);
}
.budget-info p {
  color: var(--color-text-on-dark-muted);
  max-width: 100%;
}
.budget-form {
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-dark);
}
.form-control {
  font-family: var(--font-body);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--color-dark);
  background: var(--color-surface);
  transition: all var(--duration-fast) var(--ease-out);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(61, 90, 128, 0.15);
}
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* Guarantee & Prazos Grid */
.guarantees-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
  width: 100%;
}
@media (min-width: 640px) {
  .guarantees-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.guarantee-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  text-align: left;
}
.guarantee-card__icon {
  background: rgba(61, 90, 128, 0.1);
  color: var(--color-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.guarantee-card__icon svg {
  width: 24px;
  height: 24px;
}
.guarantee-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-dark);
  margin-bottom: var(--space-1);
}
.guarantee-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Mobile Sticky Bottom Bar (CRO) - Default Hidden on Desktop */
.mobile-sticky-bar {
  display: none;
}

/* Mobile adjustments and fixes (Bug Fixes & Sticky Bottom Bar) */
@media (max-width: 768px) {
  /* Fix Hero content overlapping header on mobile */
  .hero {
    padding-top: calc(var(--header-height) + var(--space-8)) !important;
  }
  .hero__content {
    padding-top: var(--space-8) !important;
  }
  
  /* Mobile sticky bottom bar style */
  .mobile-sticky-bar {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(26, 31, 46, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4);
    z-index: 999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  }
  
  .mobile-sticky-bar .btn {
    width: 100%;
    justify-content: center;
    font-weight: 700;
    border: none;
  }
  
  /* Prevent content overlapping on mobile when bar is present */
  body {
    padding-bottom: 72px;
  }
  
  /* Push standard WhatsApp float slightly higher so it doesn't overlap the sticky bottom bar */
  .whatsapp-float {
    bottom: 84px !important;
  }
}

/* Showcase and Badges styling in About Section */
.about__showcase {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-6);
}
.showcase-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  border: 1px solid var(--color-border);
}
.showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}
.showcase-frame:hover .showcase-img {
  transform: scale(1.03);
}
.showcase-badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 10px rgba(61, 90, 128, 0.3);
  z-index: 2;
}
.showcase-badges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 576px) {
  .showcase-badges {
    grid-template-columns: 1fr;
  }
}
.showcase-badge-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  display: flex;
  gap: var(--space-4);
  align-items: center;
}
.showcase-badge-card__icon {
  background: rgba(61, 90, 128, 0.1);
  color: var(--color-primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.showcase-badge-card__icon svg {
  width: 22px;
  height: 22px;
}
.showcase-badge-card__content h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-dark);
  margin-bottom: var(--space-1);
}
.showcase-badge-card__content p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

/* Philosophy Section (Mission, Vision, Values - CRO) */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  perspective: 1000px;
  margin-top: var(--space-6);
}
@media (max-width: 991px) {
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}
.philosophy-card {
  background: var(--color-white);
  border: 1px solid rgba(61, 90, 128, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out);
  box-shadow: 0 10px 30px rgba(26, 31, 46, 0.03);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.philosophy-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}
.philosophy-card:hover {
  transform: translateY(-8px) rotateX(3deg) rotateY(-3deg);
  box-shadow: 0 20px 40px rgba(26, 31, 46, 0.08);
  border-color: rgba(61, 90, 128, 0.3);
}
.philosophy-card:hover::before {
  opacity: 1;
}
.philosophy-card__icon {
  background: linear-gradient(135deg, rgba(61, 90, 128, 0.15) 0%, rgba(91, 141, 184, 0.05) 100%);
  color: var(--color-primary);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  box-shadow: inset 0 2px 5px rgba(255, 255, 255, 0.5), 0 4px 15px rgba(61, 90, 128, 0.1);
  transition: transform var(--duration-normal) var(--ease-out), color var(--duration-normal) var(--ease-out);
}
.philosophy-card:hover .philosophy-card__icon {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
}
.philosophy-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.375rem;
  color: var(--color-dark);
  margin-bottom: var(--space-3);
}
.philosophy-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* 3D Testimonials Carousel (CRO) */
.carousel-3d-container {
  max-width: 800px;
  width: 100%;
  margin: var(--space-10) auto 0;
  perspective: 1500px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.carousel-3d {
  position: relative;
  width: 100%;
  height: 340px;
  transform-style: preserve-3d;
}
@media (max-width: 768px) {
  .carousel-3d {
    height: 380px;
  }
}
@media (max-width: 480px) {
  .carousel-3d {
    height: 420px;
  }
}
.carousel-3d-card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 15px 35px rgba(26, 31, 46, 0.08);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.6s ease, z-index 0.6s ease;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 0, -400px) rotateY(0deg);
}

/* 3D Stack positions */
.carousel-3d-card.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 10;
  transform: translate3d(0, 0, 0) rotateY(0deg);
}
.carousel-3d-card.next {
  opacity: 0.6;
  pointer-events: auto;
  z-index: 5;
  transform: translate3d(25%, 0, -200px) rotateY(-15deg);
}
.carousel-3d-card.prev {
  opacity: 0.6;
  pointer-events: auto;
  z-index: 5;
  transform: translate3d(-25%, 0, -200px) rotateY(15deg);
}

@media (max-width: 768px) {
  .carousel-3d-card.next {
    opacity: 0.3;
    transform: translate3d(15%, 0, -150px) rotateY(-10deg);
  }
  .carousel-3d-card.prev {
    opacity: 0.3;
    transform: translate3d(-15%, 0, -150px) rotateY(10deg);
  }
}

.carousel-3d-controls {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-8);
  z-index: 20;
}
.carousel-3d-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}
.carousel-3d-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.05);
}
.carousel-3d-dots {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.carousel-3d-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  cursor: pointer;
  transition: background 0.3s ease, width 0.3s ease;
}
.carousel-3d-dots .dot.active {
  background: var(--color-primary);
  width: 24px;
}






/* ============================================================
   PREMIUM DESIGN UPGRADES — VS MKT LOCAL (2026)
   ============================================================ */

/* Sleek Editorial Letter Spacing */
h1, h2, h3, .section-header h2 {
  letter-spacing: -0.02em;
}

/* Metallic Gradient on Section Headings (Light background) */
.section-header h2 {
  background: linear-gradient(135deg, var(--color-dark) 20%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Metallic Gradient on Section Headings (Dark background) */
.section--dark .section-header h2,
.section--surface-dark .section-header h2,
.cta-section h2 {
  background: linear-gradient(135deg, var(--color-white) 30%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glassmorphism and Hover Effects for Service Cards */
.service-card {
  transition: transform var(--duration-normal) var(--ease-out), 
              box-shadow var(--duration-normal) var(--ease-out), 
              border-color var(--duration-normal) var(--ease-out);
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.service-card:hover {
  transform: translateY(-6px) scale(1.015);
  box-shadow: 0 16px 40px -10px rgba(61, 90, 128, 0.15);
  border-color: var(--color-primary-light);
}

/* Glow and Lift effects on Buttons */
.btn {
  transition: transform var(--duration-fast) var(--ease-out), 
              box-shadow var(--duration-fast) var(--ease-out), 
              background-color var(--duration-fast) var(--ease-out);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(61, 90, 128, 0.3);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(91, 141, 184, 0.3);
}

.btn--outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.35);
}

/* Premium Border Top on Budget/Contact form card */
.budget-card, 
.contact-form-container,
.budget-section {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
}

.budget-card::before, 
.contact-form-container::before,
.budget-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  z-index: 10;
}

/* Philosophy Cards Hover upgrades */
.philosophy-card {
  transition: transform var(--duration-normal) var(--ease-out), 
              box-shadow var(--duration-normal) var(--ease-out);
  border: 1px solid var(--color-border);
}

.philosophy-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(61, 90, 128, 0.15);
}

/* Modern Glassmorphic blur for Fixed bottom mobile bar */
.mobile-sticky-bar {
  backdrop-filter: blur(16px);
  background: rgba(26, 31, 46, 0.85);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}


/* --- Service Cards Background Images & Full Clickable Box --- */
.service-card {
  position: relative;
  overflow: hidden;
  z-index: 1;
  padding: var(--space-8) var(--space-6); /* Slightly more spacious card padding without icon */
  background: var(--color-white);
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.12; /* Subtle background image overlay */
  filter: grayscale(100%) brightness(0.9);
  transition: transform var(--duration-normal) var(--ease-out), opacity var(--duration-normal) var(--ease-out);
  z-index: 1; /* In front of card white bg, but behind text */
  pointer-events: none;
}

.service-card:hover::before {
  transform: scale(1.08);
  opacity: 0.22; /* Slightly more visible on hover for interactive depth */
}

/* Ensure text contents sit above the background image overlay */
.service-card__title,
.service-card__desc,
.service-card__link {
  position: relative;
  z-index: 2;
}

/* Make entire service box clickable by stretching the link pseudo-element */
.service-card__link {
  position: static !important;
}

.service-card__link::after {
  content: '';
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 9; /* Sits on top of all text and background layers */
  cursor: pointer;
}

/* Background image assignments using optimized local assets */
.service-card--box::before { background-image: url('../img/box/box-de-banheiro-vidro-temperado-pelotas-10.webp'); }
.service-card--esquadrias::before { background-image: url('../img/guarda-corpo/guarda-corpo-de-vidro-pelotas-11.webp'); }
.service-card--temperado::before { background-image: url('../img/box/box-de-banheiro-vidro-temperado-pelotas-11.webp'); }
.service-card--portas::before { background-image: url('../img/box/box-de-banheiro-vidro-temperado-pelotas-12.webp'); }
.service-card--espelhos::before { background-image: url('../img/espelhos/espelho-sob-medida-pelotas-01.webp'); }
.service-card--guarda-corpo::before { background-image: url('../img/guarda-corpo/guarda-corpo-de-vidro-pelotas-12.webp'); }
.service-card--coberturas::before { background-image: url('../img/coberturas/cobertura-de-vidro-pelotas-01.webp'); }
.service-card--fachadas::before { background-image: url('../img/coberturas/cobertura-de-vidro-pelotas-03.webp'); }