/* ========================================
   GLASS & ALUMINIUM INSTALLER WEBSITE
   Design System & Styles
   ======================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Colors */
  --color-primary: #1a1a1a;
  --color-primary-dark: #0d0d0d;
  --color-secondary: #6b7280;
  --color-secondary-light: #9ca3af;
  --color-grey-light: #e5e7eb;
  --color-grey-lighter: #f3f4f6;
  --color-white: #ffffff;
  --color-accent: #0ea5e9; /* Electric blue */
  --color-accent-hover: #0284c7;
  --color-accent-dark: #0369a1;
  
  /* Typography */
  --font-heading: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Layout */
  --container-max: 1280px;
  --container-narrow: 960px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
}

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

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

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  max-width: 65ch;
}

.text-accent {
  color: var(--color-accent);
}

.text-secondary {
  color: var(--color-secondary);
}

.text-light {
  color: var(--color-white);
}

.text-center {
  text-align: center;
}

/* ========================================
   LAYOUT UTILITIES
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section {
  padding: var(--space-3xl) 0;
}

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

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

.grid {
  display: grid;
  gap: var(--space-lg);
}

.flex {
  display: flex;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  align-items: center;
  justify-content: space-between;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-base);
}

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

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

.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);
}

.btn--large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn--small {
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-lg);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  max-width: var(--container-max);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
}

.logo__image {
  height: 60px;
  width: auto;
}

.logo span {
  color: var(--color-accent);
}

.nav {
  display: none;
}

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

.nav__link {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

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

.header__cta {
  display: none;
}

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: all var(--transition-base);
}

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

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  padding: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 999;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-menu__link {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

.mobile-menu__cta {
  margin-top: var(--space-lg);
}

/* Desktop Styles */
@media (min-width: 768px) {
  .header__inner {
    padding: var(--space-md) var(--space-lg);
  }
  
  .nav {
    display: block;
  }
  
  .header__cta {
    display: block;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .mobile-menu {
    display: none;
  }
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
  overflow: hidden;
}

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

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(26, 26, 26, 0.95) 0%,
    rgba(26, 26, 26, 0.7) 50%,
    rgba(26, 26, 26, 0.4) 100%
  );
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 700px;
  padding-top: var(--space-3xl);
}

.hero__title {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-grey-light);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ========================================
   ABOUT US SECTION
   ======================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.about-content h2 {
  margin-bottom: var(--space-lg);
}

.about-content p {
  margin-bottom: var(--space-md);
  color: var(--color-secondary);
}

.about-content .btn {
  margin-top: var(--space-md);
}

.about-image {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}

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

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.services-grid--large {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.service-card {
  background-color: var(--color-white);
  padding: var(--space-xl);
  border: 1px solid var(--color-grey-light);
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  margin-bottom: var(--space-sm);
}

.service-card__description {
  color: var(--color-secondary);
  font-size: 0.9375rem;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section__subtitle {
  color: var(--color-secondary);
  margin-top: var(--space-sm);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   WHY CHOOSE US SECTION
   ======================================== */
.trust-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.trust-point {
  text-align: center;
  padding: var(--space-lg);
}

.trust-point__number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.trust-point__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  color: var(--color-accent);
}

.trust-point__icon svg {
  width: 100%;
  height: 100%;
}

.trust-point__title {
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.trust-point__description {
  color: var(--color-secondary-light);
  font-size: 0.9375rem;
}

/* ========================================
   FEATURED WORK / CAROUSEL
   ======================================== */
.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  transition: transform var(--transition-slow);
}

.carousel__slide {
  flex: 0 0 100%;
  min-width: 0;
}

@media (min-width: 768px) {
  .carousel__slide {
    flex: 0 0 50%;
    padding: 0 var(--space-sm);
  }
}

@media (min-width: 1024px) {
  .carousel__slide {
    flex: 0 0 33.333%;
  }
}

.carousel__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.carousel__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.carousel__image:hover img {
  transform: scale(1.05);
}

.carousel__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

.carousel__image:hover .carousel__image-overlay {
  opacity: 1;
}

.carousel__caption {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.carousel__controls {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.carousel__btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel__btn:hover {
  background-color: var(--color-accent);
}

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

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.carousel__dot {
  width: 12px;
  height: 12px;
  background-color: var(--color-grey-light);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.carousel__dot--active,
.carousel__dot:hover {
  background-color: var(--color-accent);
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.testimonial {
  background-color: var(--color-white);
  padding: var(--space-xl);
  border-left: 4px solid var(--color-accent);
}

.testimonial__quote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
  position: relative;
}

.testimonial__quote::before {
  content: '"';
  font-family: var(--font-heading);
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.3;
  position: absolute;
  top: -20px;
  left: -10px;
  line-height: 1;
}

.testimonial__author {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.testimonial__role {
  font-size: 0.875rem;
  color: var(--color-secondary);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  background-color: var(--color-accent);
  text-align: center;
}

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

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-lg);
  margin-left: auto;
  margin-right: auto;
}

.cta-section__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.cta-section .btn--secondary {
  border-color: var(--color-white);
}

.cta-section .btn--secondary:hover {
  background-color: var(--color-white);
  color: var(--color-accent);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-grey-light);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer__logo span {
  color: var(--color-accent);
}

.footer__logo-image {
  height: 50px;
  width: auto;
  margin-bottom: var(--space-md);
}

.footer__description {
  font-size: 0.9375rem;
  color: var(--color-secondary-light);
}

.footer__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

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

.footer__link {
  font-size: 0.9375rem;
  color: var(--color-secondary-light);
  transition: color var(--transition-fast);
}

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

.footer__contact-item {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-secondary-light);
}

.footer__contact-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-secondary);
}

/* ========================================
   GALLERY PAGE
   ======================================== */
.page-header {
  background-color: var(--color-primary);
  padding: calc(80px + var(--space-3xl)) 0 var(--space-3xl);
  text-align: center;
}

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

.page-header p {
  color: var(--color-secondary-light);
  max-width: 600px;
  margin: 0 auto;
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background-color: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-grey-light);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

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

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

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
}

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

.gallery-item__title {
  color: var(--color-white);
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.gallery-item__category {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.lightbox.active {
  display: flex;
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__image {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
}

.lightbox__close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.lightbox__close svg {
  width: 32px;
  height: 32px;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.lightbox__nav:hover {
  background-color: var(--color-accent);
}

.lightbox__nav--prev {
  left: -60px;
}

.lightbox__nav--next {
  right: -60px;
}

@media (max-width: 768px) {
  .lightbox__nav--prev {
    left: 10px;
  }
  
  .lightbox__nav--next {
    right: 10px;
  }
}

.lightbox__caption {
  text-align: center;
  color: var(--color-white);
  margin-top: var(--space-md);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-form {
  background-color: var(--color-white);
  padding: var(--space-xl);
  border: 1px solid var(--color-grey-light);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  border: 2px solid var(--color-grey-light);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.file-upload {
  position: relative;
  border: 2px dashed var(--color-grey-light);
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.file-upload:hover {
  border-color: var(--color-accent);
  background-color: var(--color-grey-lighter);
}

.file-upload input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-sm);
  color: var(--color-secondary);
}

.file-upload__text {
  font-size: 0.9375rem;
  color: var(--color-secondary);
}

.file-upload__text span {
  color: var(--color-accent);
  font-weight: 500;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info__item {
  display: flex;
  gap: var(--space-md);
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  flex-shrink: 0;
}

.contact-info__icon svg {
  width: 24px;
  height: 24px;
}

.contact-info__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.contact-info__text {
  color: var(--color-secondary);
  font-size: 0.9375rem;
}

.contact-info__text a {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.contact-info__text a:hover {
  color: var(--color-accent-dark);
}

.map-container {
  aspect-ratio: 16/9;
  width: 100%;
  margin-top: var(--space-lg);
}

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

/* Business Hours */
.business-hours {
  background-color: var(--color-grey-lighter);
  padding: var(--space-lg);
  margin-top: var(--space-lg);
}

.business-hours__title {
  margin-bottom: var(--space-md);
}

.business-hours__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.business-hours__item {
  display: flex;
  justify-content: space-between;
  font-size: 0.9375rem;
}

.business-hours__day {
  color: var(--color-secondary);
}

.business-hours__time {
  font-weight: 500;
}

/* ========================================
   FLOATING BUTTONS (MOBILE)
   ======================================== */
.floating-buttons {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 900;
}

@media (min-width: 768px) {
  .floating-buttons {
    display: none;
  }
}

.floating-btn {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

.floating-btn:hover {
  transform: scale(1.1);
}

.floating-btn--whatsapp {
  background-color: #25D366;
}

.floating-btn--call {
  background-color: var(--color-accent);
}

.floating-btn svg {
  width: 28px;
  height: 28px;
}

/* ========================================
   FORM SUCCESS/ERROR STATES
   ======================================== */
.form-message {
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.form-message--success {
  background-color: #d1fae5;
  color: #065f46;
  border-left: 4px solid #10b981;
}

.form-message--error {
  background-color: #fee2e2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
}

/* ========================================
   UTILITIES
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

/* Animation Classes */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* Lazy Loading Images */
img[data-src] {
  opacity: 0;
  transition: opacity var(--transition-base);
}

img.loaded {
  opacity: 1;
}