/* ===================================
   DRYWALL COMPANY - LUXURY DESIGN SYSTEM
   Minimalist sophistication inspired by premium architecture
   =================================== */

/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Montserrat:wght@300;400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700&family=Lato:wght@300;400;700&display=swap');

/* =========================================
   VARIABLES & DESIGN TOKENS
   ========================================= */
:root {
  /* Colors - Neutral Luxury Palette */
  --color-off-white: #FAFAF8;
  --color-soft-gray: #E8E8E5;
  --color-medium-gray: #999999;
  --color-dark-gray: #666666;
  --color-matte-black: #1A1A1A;
  --color-champagne-gold: #D4AF78;
  --color-charcoal: #2C2C2C;

  /* Typography */
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Montserrat', sans-serif;

  /* Spacing - Generous luxury margins */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;

  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--color-dark-gray);
  background-color: var(--color-off-white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-matte-black);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--color-dark-gray);
}

.subtitle {
  font-family: var(--font-sans);
  font-size: clamp(0.875rem, 1.2vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-champagne-gold);
}

/* === LAYOUT === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

/* === NAVIGATION === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(232, 232, 229, 0.3);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.99);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: auto;
  max-height: 100px;
  /* Optimal size for visibility */
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
  /* mix-blend-mode removed for cleaner look on white background */
}

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

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dark-gray);
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-champagne-gold);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-matte-black);
}

.nav-links a:hover::after {
  width: 100%;
}

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

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-matte-black);
  transition: var(--transition-fast);
}

/* === HERO SECTION === */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 26, 26, 0.4), rgba(26, 26, 26, 0.2));
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: white;
  max-width: 900px;
  padding: 0 var(--space-md);
}

.hero-content h1 {
  color: white;
  margin-bottom: var(--space-md);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-content .subtitle {
  color: var(--color-champagne-gold);
  margin-bottom: var(--space-sm);
}

.hero-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-top: var(--space-md);
  letter-spacing: 0.02em;
}

/* === PHILOSOPHY SECTION === */
.philosophy {
  background: white;
  text-align: center;
}

.philosophy .container {
  max-width: 900px;
}

.philosophy h2 {
  margin-bottom: var(--space-md);
}

.philosophy p {
  font-size: 1.25rem;
  line-height: 2;
  margin-bottom: var(--space-lg);
}

.philosophy-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

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

.highlight-item h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-champagne-gold);
}

/* === PORTFOLIO GALLERY === */
.portfolio {
  background: var(--color-soft-gray);
}

.portfolio h2 {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: white;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.portfolio-item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(26, 26, 26, 0.8), transparent);
  padding: var(--space-md);
  transform: translateY(100%);
  transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-item-overlay {
  transform: translateY(0);
}

.portfolio-item-overlay h3 {
  color: white;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.portfolio-item-overlay p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

/* Asymmetric grid layout */
.portfolio-item:nth-child(1) {
  grid-column: span 7;
  grid-row: span 2;
  min-height: 500px;
}

.portfolio-item:nth-child(2) {
  grid-column: span 5;
  min-height: 350px;
}

.portfolio-item:nth-child(3) {
  grid-column: span 5;
  min-height: 350px;
}

.portfolio-item:nth-child(4) {
  grid-column: span 7;
  min-height: 400px;
}

/* === SERVICES === */
.services {
  background: white;
  text-align: center;
}

.services h2 {
  margin-bottom: var(--space-xl);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  padding: var(--space-lg);
  background: var(--color-off-white);
  border: 1px solid var(--color-soft-gray);
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--color-champagne-gold);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-matte-black);
}

.service-card p {
  font-size: 1rem;
  line-height: 1.8;
}

/* === CONTACT === */
.contact {
  background: var(--color-matte-black);
  color: white;
  text-align: center;
}

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

.contact .subtitle {
  color: var(--color-champagne-gold);
  margin-bottom: var(--space-xl);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-champagne-gold);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-champagne-gold);
  background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.submit-btn {
  background: var(--color-champagne-gold);
  color: var(--color-matte-black);
  border: none;
  padding: 1rem 3rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: var(--space-md);
}

.submit-btn:hover {
  background: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(212, 175, 120, 0.3);
}

/* === FOOTER === */
.footer {
  background: var(--color-charcoal);
  color: var(--color-medium-gray);
  padding: var(--space-lg) 0;
  text-align: center;
}

.footer p {
  font-size: 0.875rem;
  color: var(--color-medium-gray);
}

/* === ANIMATIONS === */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === GALLERY SECTION === */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background-color: var(--color-soft-gray);
}

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

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

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(26, 26, 26, 0.8);
  color: var(--color-off-white);
  padding: 1rem;
  transform: translateY(100%);
  transition: var(--transition-smooth);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  opacity: 0;
}

.gallery-item:hover .gallery-caption {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 968px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70%;
    max-width: 300px;
    background: var(--color-off-white);
    flex-direction: column;
    padding: var(--space-xxl) var(--space-lg);
    gap: var(--space-md);
    transition: var(--transition-smooth);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
  }

  .nav-links.active {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

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

  .portfolio-item,
  .portfolio-item:nth-child(1),
  .portfolio-item:nth-child(2),
  .portfolio-item:nth-child(3),
  .portfolio-item:nth-child(4) {
    grid-column: span 1;
    grid-row: span 1;
    min-height: 300px;
  }

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

  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-xxl: 5rem;
  }
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .philosophy-highlights {
    grid-template-columns: 1fr;
  }

  :root {
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
  }
}

/* === LOGO SLIDER === */
.logo-slider-section {
  padding: var(--space-lg) 0;
  background: white;
  overflow: hidden;
  text-align: center;
}

.slider-title {
  margin-bottom: var(--space-lg);
  font-size: 1.1rem;
  color: var(--color-medium-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.logo-slider {
  overflow: hidden;
  position: relative;
  width: 100%;
  margin: 0 auto;
}

.logo-slide-track {
  display: flex;
  width: calc(300px * 12);
  /* 300px per slide * 12 slides */
  animation: scroll 40s linear infinite;
}

.logo-slide {
  width: 300px;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-slide img {
  max-width: 100%;
  max-height: 120px;
  filter: grayscale(100%);
  opacity: 0.8;
  transition: var(--transition-smooth);
  object-fit: contain;
}

.logo-slide img:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.05);
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(calc(-300px * 6));
    /* Scroll width of one set */
  }
}

/* WHATSAPP FLOATING BUTTON */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 30px;
  right: 30px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  animation: pulse-green 2s infinite;
}

.whatsapp-float:hover {
  background-color: #20ba5a;
  transform: scale(1.1);
}

.whatsapp-float svg {
  width: 35px;
  height: 35px;
}

@keyframes pulse-green {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }

  70% {
    box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
  }
}

/* === SOCIAL MEDIA ICONS === */
.social-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-champagne-gold);
  transition: all 0.3s ease;
}

.social-icon-link svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.social-icon-link:hover {
  color: white;
  transform: translateY(-3px);
  filter: drop-shadow(0 4px 6px rgba(212, 175, 120, 0.4));
}

/* === SUCCESS MODAL === */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: white;
  padding: 3rem;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: translateY(20px);
  transition: var(--transition-smooth);
  border-top: 4px solid var(--color-champagne-gold);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-icon {
  font-size: 4rem;
  color: var(--color-champagne-gold);
  margin-bottom: 1.5rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-matte-black);
  margin-bottom: 1rem;
}

.modal-message {
  color: var(--color-dark-gray);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.modal-close-btn {
  background: var(--color-matte-black);
  color: white;
  border: none;
  padding: 1rem 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--color-champagne-gold);
}

/* === GALLERY SECTION === */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background-color: var(--color-soft-gray);
}

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

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

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(26, 26, 26, 0.8);
  color: var(--color-off-white);
  padding: 1rem;
  transform: translateY(100%);
  transition: var(--transition-smooth);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  opacity: 0;
}

.gallery-item:hover .gallery-caption {
  transform: translateY(0);
  opacity: 1;
}