/* ==========================================================================
   ARD LUXURY HOUSES - DESIGN SYSTEM & STYLES
   ========================================================================== */

/* Design Tokens & Variables */
:root {
  --color-gold: #ddd3b6;
  --color-gold-rgb: 221, 211, 182;
  --color-dark: #0a0a0a;
  --color-dark-rgb: 10, 10, 10;
  --color-white: #faf9f6;
  --color-muted: rgba(250, 249, 246, 0.55);
  
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1); /* Premium EaseOutExpo */
}

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

html {
  scroll-behavior: smooth;
}

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--color-dark);
  color: var(--color-white);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Minimalist Floating Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1001; /* Above mobile overlay */
  padding: 2.5rem 4rem;
  transition: padding 0.5s var(--transition-smooth), background-color 0.5s var(--transition-smooth), border-color 0.5s var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  padding: 1.5rem 4rem;
  background: linear-gradient(180deg, rgba(6, 6, 6, 0.9) 0%, rgba(6, 6, 6, 0.8) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(221, 211, 182, 0.12); /* Subtle gold border tint */
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1800px;
  margin: 0 auto;
}

.brand-link {
  text-decoration: none;
}

.brand-text {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--color-white);
  opacity: 0.8;
  text-transform: uppercase;
  user-select: none;
  transition: color 0.4s var(--transition-smooth), opacity 0.4s var(--transition-smooth);
}

.brand-link:hover .brand-text {
  color: var(--color-gold);
  opacity: 1;
}

/* Desktop Navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.25em;
  text-decoration: none;
  position: relative;
  padding: 0.5rem 0;
  opacity: 0.8;
  transition: opacity 0.4s var(--transition-smooth), color 0.4s var(--transition-smooth);
}

.nav-link:hover {
  opacity: 1;
  color: var(--color-gold);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width 0.4s var(--transition-smooth);
}

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

/* Mobile Menu Button */
.menu-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: none; /* Hidden on desktop */
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 0;
  outline: none;
  position: relative;
  z-index: 1002;
}

.menu-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-white);
  border-radius: 50%;
  transition: all 0.5s var(--transition-smooth);
}

.menu-btn:hover .menu-dot {
  background-color: var(--color-gold);
}

/* Dots animating into lines forming an X */
.menu-btn.active .menu-dot:nth-child(1) {
  width: 24px;
  height: 1px;
  border-radius: 0;
  background-color: var(--color-gold);
  transform: translateY(3.5px) rotate(45deg);
}

.menu-btn.active .menu-dot:nth-child(2) {
  width: 24px;
  height: 1px;
  border-radius: 0;
  background-color: var(--color-gold);
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Fullscreen Overlay Navigation */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(6, 6, 6, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s var(--transition-smooth);
}

.nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.nav-mobile {
  width: 100%;
}

.nav-mobile-list {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.nav-mobile-list li {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--transition-smooth), transform 0.6s var(--transition-smooth);
}

.nav-overlay.active .nav-mobile-list li {
  opacity: 1;
  transform: translateY(0);
}

.nav-overlay.active .nav-mobile-list li:nth-child(1) { transition-delay: 0.1s; }
.nav-overlay.active .nav-mobile-list li:nth-child(2) { transition-delay: 0.18s; }
.nav-overlay.active .nav-mobile-list li:nth-child(3) { transition-delay: 0.26s; }
.nav-overlay.active .nav-mobile-list li:nth-child(4) { transition-delay: 0.34s; }
.nav-overlay.active .nav-mobile-list li:nth-child(5) { transition-delay: 0.42s; }

.nav-mobile-link {
  font-family: var(--font-sans);
  font-size: 1.8rem;
  font-weight: 300;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.3em;
  text-decoration: none;
  transition: color 0.4s var(--transition-smooth), letter-spacing 0.4s var(--transition-smooth);
  display: inline-block;
}

.nav-mobile-link:hover {
  color: var(--color-gold);
  letter-spacing: 0.35em;
}

body.menu-open {
  overflow: hidden;
}

/* Hero Section Styles */
.hero {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

/* Ken Burns Zoom Effect */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  z-index: 1;
  animation: kenBurnsEffect 20s var(--transition-smooth) infinite alternate;
}

/* Sophisticated Dark Gradient Overlay (Contrast & Vignette) */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at center, rgba(var(--color-dark-rgb), 0.3) 0%, rgba(var(--color-dark-rgb), 0.85) 100%),
    linear-gradient(to bottom, rgba(var(--color-dark-rgb), 0.5) 0%, rgba(var(--color-dark-rgb), 0.4) 40%, rgba(var(--color-dark-rgb), 0.8) 100%);
  z-index: 2;
}

/* Hero Content Area */
.hero-content {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 900px;
  padding: 0 2rem;
}

/* Logo Reveal Styling */
.logo-container {
  width: 300px;
  height: auto;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(30px) scale(0.96);
}

body.is-ready .logo-container {
  animation: logoReveal 1.8s var(--transition-smooth) forwards;
  animation-delay: 0.4s;
}

.logo-svg {
  width: 100%;
  height: auto;
  display: block;
}

.logo-path {
  fill: var(--color-gold);
}

.hero-title {
  font-family: var(--font-sans);
  font-size: 30px;
  font-weight: 300;
  text-transform: uppercase;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 2rem;
  letter-spacing: 0.3em;
}

.title-line {
  display: block;
  overflow: hidden;
  padding: 0.2rem 0; /* Prevents descenders from being clipped */
}

.reveal-inner {
  display: inline-block;
  transform: translateY(105%);
  background: linear-gradient(180deg, var(--color-white) 40%, rgba(250,249,246,0.85) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.is-ready .reveal-inner {
  animation: textSlideUp 1.8s var(--transition-smooth) forwards;
  animation-delay: 0.8s;
}

/* Tag: "Porto Rico Paraná" Reveal */
.tag-container {
  overflow: hidden;
  margin-top: 0.5rem;
}

.hero-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(20px);
}

body.is-ready .hero-tag {
  animation: tagReveal 2.2s var(--transition-smooth) forwards;
  animation-delay: 1.2s;
}

/* Scroll Down Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 3.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0;
}

body.is-ready .scroll-indicator {
  animation: fadeIn 1.5s var(--transition-smooth) forwards;
  animation-delay: 2.2s;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(221, 211, 182, 0.8), rgba(221, 211, 182, 0));
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--color-white);
  animation: scrollPulse 2.2s cubic-bezier(0.15, 0.85, 0.45, 1) infinite;
}

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */

/* Ken Burns background zoom */
@keyframes kenBurnsEffect {
  0% {
    transform: scale(1.08) translate(0, 0);
  }
  100% {
    transform: scale(1.01) translate(0, 0);
  }
}

/* Logo Reveal */
@keyframes logoReveal {
  0% {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Text Slide Up (Clip-path alternative) */
@keyframes textSlideUp {
  0% {
    transform: translateY(105%);
  }
  100% {
    transform: translateY(0);
  }
}

/* Tag Reveal and letter-spacing expanding */
@keyframes tagReveal {
  0% {
    opacity: 0;
    letter-spacing: 0.1em;
    transform: translateY(20px);
  }
  100% {
    opacity: 0.95;
    letter-spacing: 0.38em;
    transform: translateY(0);
  }
}

/* Fade In general */
@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

/* Scroll indicator animation */
@keyframes scrollPulse {
  0% {
    transform: translateY(-20px);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  60% {
    transform: translateY(60px);
    opacity: 0;
  }
  100% {
    transform: translateY(60px);
    opacity: 0;
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 26px;
  }
  .logo-container {
    width: 260px;
  }
  .header {
    padding: 2rem;
  }
  .header.scrolled {
    padding: 1.2rem 2rem;
  }
  .nav-desktop {
    display: none;
  }
  .menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 24px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.25em;
  }
  .logo-container {
    width: 220px;
    margin-bottom: 1.5rem;
  }
  .hero-tag {
    font-size: 0.75rem;
  }
  @keyframes tagReveal {
    0% {
      opacity: 0;
      letter-spacing: 0.1em;
      transform: translateY(15px);
    }
    100% {
      opacity: 0.95;
      letter-spacing: 0.25em; /* Reduced on mobile for layout safety */
      transform: translateY(0);
    }
  }
  .header {
    padding: 1.5rem;
  }
  .header.scrolled {
    padding: 1rem 1.5rem;
  }
  .brand-text {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 20px;
    letter-spacing: 0.2em;
  }
  .logo-container {
    width: 180px;
  }
}

/* ==========================================================================
   ESSENCE SECTION (ABOUT ARD)
   ========================================================================== */

.essence-section {
  background-color: #ffffff;
  color: #1a1a1a;
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.essence-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: center;
  max-width: 1500px;
  margin: 0 auto;
}

/* Text Column */
.essence-text-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.essence-tag {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #c4b38d; /* Rich gold with high contrast on white */
  letter-spacing: 0.35em;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.essence-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 300;
  line-height: 1.25;
  color: #111111;
  margin-bottom: 2.2rem;
  max-width: 600px;
}

.essence-description {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  margin-bottom: 3.5rem;
  max-width: 650px;
}

.essence-description p {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.85;
  color: #4a4a4a;
}

.essence-footer {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 2rem;
  width: 100%;
  max-width: 500px;
}

.essence-signature {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 500;
  color: #111111;
  margin-bottom: 0.4rem;
}

.essence-sub-signature {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: #c4b38d;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

/* Video Column */
.essence-video-col {
  width: 100%;
  display: flex;
  justify-content: center;
}

.essence-video-wrapper {
  width: 100%;
  overflow: hidden;
  position: relative;
  background-color: #f5f5f5;
}

.essence-video {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.4s var(--transition-smooth), transform 1.4s var(--transition-smooth);
}

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

.reveal-on-scroll.delay-1 {
  transition-delay: 0.25s;
}

.reveal-on-scroll.delay-2 {
  transition-delay: 0.5s;
}

/* Responsive Overrides for Essence Section */
@media (max-width: 1200px) {
  .essence-container {
    gap: 4rem;
  }
  .essence-title {
    font-size: 2.4rem;
  }
}

@media (max-width: 1024px) {
  .essence-section {
    padding: 8rem 3rem;
  }
  .essence-container {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
  .essence-title {
    max-width: 100%;
  }
  .essence-description {
    max-width: 100%;
  }
  .essence-footer {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .essence-section {
    padding: 6rem 2rem;
  }
  .essence-title {
    font-size: 2rem;
    margin-bottom: 1.8rem;
  }
  .essence-description {
    margin-bottom: 2.5rem;
  }
}

@media (max-width: 480px) {
  .essence-section {
    padding: 5rem 1.5rem;
  }
  .essence-title {
    font-size: 1.8rem;
  }
}

/* ==========================================================================
   PROPERTY SECTION (CASA SOLARA)
   ========================================================================== */

.property-section {
  background-color: #0d0d0d;
  color: var(--color-white);
  padding: 12rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

#casa-riverlight {
  background-color: #030303; /* Darker tone to differentiate */
}

.property-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 7rem;
  align-items: center;
  max-width: 1500px;
  margin: 0 auto;
}

.property-container.layout-reversed {
  grid-template-columns: 1fr 1.2fr;
}

/* Text Column */
.property-text-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.property-tag {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-gold);
  letter-spacing: 0.35em;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.property-title {
  font-family: var(--font-sans);
  font-size: 3rem;
  font-weight: 300;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.2em;
  margin-bottom: 1.2rem;
  line-height: 1.2;
}

.property-specs {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  margin-bottom: 3rem;
  text-transform: uppercase;
}

.spec-sep {
  color: rgba(250, 249, 246, 0.25);
  font-weight: 300;
}

.property-concept {
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.concept-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-gold);
  letter-spacing: 0.2em;
  margin-bottom: 0.8rem;
}

.concept-description {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.85;
  color: var(--color-muted);
}

.property-signature {
  margin-bottom: 3.5rem;
  max-width: 500px;
}

.signature-text {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-white);
  line-height: 1.4;
}

.property-action {
  display: block;
}

.btn-luxury {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  color: var(--color-white);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  border-bottom: 1px solid rgba(250, 249, 246, 0.2);
  padding-bottom: 0.6rem;
  transition: color 0.4s var(--transition-smooth), border-color 0.4s var(--transition-smooth);
}

.btn-luxury:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.4s var(--transition-smooth);
}

.btn-luxury:hover .btn-arrow {
  transform: translateX(8px);
}

/* Modern Grid Gallery Column */
.property-gallery-col {
  width: 100%;
}

.gallery-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.gallery-item {
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  transition: transform 0.8s var(--transition-smooth);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--transition-smooth);
}

.gallery-item:hover {
  transform: translateY(-4px);
}

.gallery-item:hover .gallery-img {
  transform: scale(1.04);
}

/* Main Image Dimensions */
.main-item {
  width: 100%;
  height: 380px;
}

/* Secondary Sub-grid */
.gallery-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
}

.sub-item {
  width: 100%;
  height: 180px;
}

/* Responsive Overrides for Property Section */
@media (max-width: 1200px) {
  .property-container {
    gap: 4rem;
  }
  .property-title {
    font-size: 2.6rem;
  }
  .main-item {
    height: 320px;
  }
  .sub-item {
    height: 150px;
  }
}

@media (max-width: 1024px) {
  .property-section {
    padding: 8rem 3rem;
  }
  .property-container,
  .property-container.layout-reversed {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
  .property-text-col {
    order: 1;
  }
  .property-gallery-col {
    order: 2;
  }
  .property-title {
    max-width: 100%;
  }
  .property-concept {
    max-width: 100%;
  }
  .property-signature {
    max-width: 100%;
  }
  .main-item {
    height: 380px;
  }
  .sub-item {
    height: 180px;
  }
}

@media (max-width: 768px) {
  .property-section {
    padding: 6rem 2rem;
  }
  .property-title {
    font-size: 2.2rem;
    margin-bottom: 2rem;
  }
  .property-concept {
    margin-bottom: 2rem;
  }
  .property-signature {
    margin-bottom: 2.5rem;
  }
  .signature-text {
    font-size: 1.5rem;
  }
  .main-item {
    height: 300px;
  }
  .sub-item {
    height: 140px;
  }
}

@media (max-width: 480px) {
  .property-section {
    padding: 5rem 1.5rem;
  }
  .property-title {
    font-size: 1.8rem;
    letter-spacing: 0.15em;
  }
  .main-item {
    height: 220px;
  }
  .sub-item {
    height: 100px;
  }
}

/* ==========================================================================
   CONTACT SECTION (LEAD CAPTURE)
   ========================================================================== */

.contact-section {
  background-color: #faf9f6;
  color: #1a1a1a;
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.contact-container {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.contact-tag {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #c4b38d;
  letter-spacing: 0.35em;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.contact-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 300;
  color: #111111;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.contact-description {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.85;
  color: #555555;
  max-width: 600px;
  margin-bottom: 4rem;
}

/* Lead Capture Form */
.lead-form {
  width: 100%;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
  text-align: left;
}

.input-group {
  position: relative;
  width: 100%;
  height: 50px;
}

.input-group input {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
  outline: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: #111111;
  padding: 0.5rem 0;
  transition: border-color 0.4s var(--transition-smooth);
}

.input-group label {
  position: absolute;
  left: 0;
  bottom: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  color: #777777;
  pointer-events: none;
  transition: transform 0.4s var(--transition-smooth), font-size 0.4s var(--transition-smooth), color 0.4s var(--transition-smooth);
  transform-origin: left bottom;
}

.input-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: #c4b38d;
  transition: width 0.4s var(--transition-smooth);
}

/* Floating Label Logic */
.input-group input:focus ~ .input-line {
  width: 100%;
}

.input-group input:focus {
  border-bottom-color: transparent;
}

.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label {
  transform: translateY(-28px) scale(0.85);
  color: #c4b38d;
}

/* Form Action */
.form-action {
  display: flex;
  justify-content: center;
  width: 100%;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  background-color: #111111;
  color: #ffffff;
  border: none;
  padding: 1.2rem 3.5rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: background-color 0.4s var(--transition-smooth), transform 0.4s var(--transition-smooth), box-shadow 0.4s var(--transition-smooth);
}

.btn-submit:hover {
  background-color: #c4b38d;
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(196, 179, 141, 0.25);
}

.btn-submit .btn-arrow {
  width: 16px;
  height: 16px;
  color: #ffffff;
  transition: transform 0.4s var(--transition-smooth);
}

.btn-submit:hover .btn-arrow {
  transform: translateX(8px);
}

.btn-submit:disabled {
  background-color: #cccccc !important;
  color: #888888 !important;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
}

.btn-submit:disabled .btn-arrow {
  display: none;
}

/* Form Feedback */
.form-feedback {
  margin-top: 2.5rem;
  width: 100%;
  max-width: 600px;
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s var(--transition-smooth), transform 0.4s var(--transition-smooth);
}

.form-feedback.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.feedback-success,
.feedback-error {
  display: none;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 1.2rem;
  border-radius: 2px;
  text-align: center;
}

.form-feedback.success .feedback-success {
  display: block;
  color: #2b542c;
  background-color: #dff0d8;
  border: 1px solid #d6e9c6;
}

.form-feedback.error .feedback-error {
  display: block;
  color: #a94442;
  background-color: #f2dede;
  border: 1px solid #ebccd1;
}

/* Responsive Overrides for Contact Section */
@media (max-width: 1024px) {
  .contact-section {
    padding: 8rem 3rem;
  }
}

@media (max-width: 768px) {
  .contact-section {
    padding: 6rem 2rem;
  }
  .contact-title {
    font-size: 2.4rem;
  }
  .form-grid {
    grid-template-columns: 1fr;
    gap: 2.8rem;
    margin-bottom: 2.8rem;
  }
}

@media (max-width: 480px) {
  .contact-section {
    padding: 5rem 1.5rem;
  }
  .contact-title {
    font-size: 2rem;
  }
  .btn-submit {
    width: 100%;
    justify-content: center;
    padding: 1.2rem 2rem;
  }
}

/* ==========================================================================
   LUXURY FOOTER SECTION
   ========================================================================== */

.footer {
  background-color: #060606; /* Deep obsidian black */
  color: var(--color-white);
  padding: 8rem 4rem 3rem 4rem;
  border-top: 1px solid rgba(221, 211, 182, 0.15); /* Refined gold border */
  position: relative;
  width: 100vw;
  z-index: 4;
}

.footer-container {
  max-width: 1500px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1.3fr;
  gap: 5rem;
  margin-bottom: 6rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Brand block */
.footer-brand-text {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1.8rem;
  display: inline-block;
}

.footer-tagline {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-muted);
  max-width: 280px;
}

/* Titles */
.footer-title {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.25em;
  margin-bottom: 2rem;
  position: relative;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 20px;
  height: 1px;
  background-color: var(--color-gold);
}

/* Links and Lists */
.footer-links, .footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer-links a, .contact-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.4s var(--transition-smooth), transform 0.4s var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.footer-links a:hover, .contact-link:hover {
  color: var(--color-gold);
  transform: translateX(4px);
}

/* Contact SVGs */
.contact-icon {
  width: 18px;
  height: 18px;
  color: var(--color-gold);
  transition: color 0.4s var(--transition-smooth);
}

.contact-link:hover .contact-icon {
  color: var(--color-white);
}

/* Location details */
.location-text {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.8;
  letter-spacing: 0.05em;
}

.location-detail {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--color-muted);
  display: block;
  margin-top: 0.8rem;
  line-height: 1.7;
}

/* Responsive Footer overrides */
@media (max-width: 1024px) {
  .footer {
    padding: 6rem 3rem 2.5rem 3rem;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
  }
}

@media (max-width: 768px) {
  .footer {
    padding: 5rem 2rem 2rem 2rem;
  }
  .footer-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
  }
}

@media (max-width: 480px) {
  .footer {
    padding: 4rem 1.5rem 2rem 1.5rem;
  }
}

/* ==========================================================================
   LPM STUDIO FOOTER (Bottom Copyright Bar)
   ========================================================================== */

.lpm-footer {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  padding: 3rem 0 0 0;
  font-size: 0.8rem;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  background-color: transparent;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .lpm-footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
    padding: 2.5rem 0 0 0;
  }
}

.lpm-footer-left {
  color: #94a3b8;
  letter-spacing: 0.02em;
}

.lpm-footer-right {
  color: #64748b;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.lpm-footer-right a {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  transition: all 0.25s ease;
}

.lpm-footer-right a:hover {
  color: #ffffff;
}

.circle-logo {
  display: inline-flex;
  align-items: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.circle-logo .c-accent {
  fill: #deff05;
  transition: all 0.4s ease;
}

.circle-logo .c-dark {
  fill: #141414;
  transition: all 0.4s ease;
}

.lpm-footer-right a:hover .circle-logo {
  transform: scale(1.08) rotate(15deg);
}

.lpm-footer-right a:hover .circle-logo .c-dark {
  fill: rgba(222, 255, 5, 0.15);
  stroke: #deff05;
  stroke-width: 3px;
}

/* ==========================================================================
   CASA RIVERLIGHT SUBPAGE STYLES
   ========================================================================== */

/* Specs Section */
.section-specs {
  background-color: var(--color-dark);
  padding: 8rem 4rem 4rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.specs-container {
  max-width: 1500px;
  margin: 0 auto;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
}

.spec-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 3rem 2rem;
  background: rgba(250, 249, 246, 0.02);
  border: 1px solid rgba(221, 211, 182, 0.08);
  transition: transform 0.6s var(--transition-smooth), border-color 0.6s var(--transition-smooth), background-color 0.6s var(--transition-smooth);
}

.spec-card:hover {
  transform: translateY(-5px);
  border-color: rgba(221, 211, 182, 0.3);
  background: rgba(221, 211, 182, 0.03);
}

.spec-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 1rem;
}

.spec-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--color-white);
  letter-spacing: 0.25em;
  opacity: 0.8;
}

/* Concept Section */
.section-concept {
  background-color: #ffffff;
  color: #1a1a1a;
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.concept-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  max-width: 1500px;
  margin: 0 auto;
}

.concept-text-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.concept-rich-text {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 650px;
}

.concept-rich-text p {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.85;
  color: #4a4a4a;
}

.concept-img-col {
  width: 100%;
}

.concept-img-wrapper {
  width: 100%;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.concept-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 1.2s var(--transition-smooth);
}

.concept-img-wrapper:hover .concept-img {
  transform: scale(1.03);
}

/* Section Title & Tag */
.section-tag {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #c4b38d;
  letter-spacing: 0.35em;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 300;
  line-height: 1.25;
  color: inherit;
  margin-bottom: 2.2rem;
}

/* Diferenciais Section */
.section-diferenciais {
  background-color: #0d0d0d;
  color: var(--color-white);
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.diferenciais-container {
  max-width: 1500px;
  margin: 0 auto;
}

.diferenciais-header {
  text-align: center;
  margin-bottom: 6rem;
}

.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem 3rem;
}

.diferencial-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.diferencial-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.diferencial-num::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 1px;
  background-color: rgba(221, 211, 182, 0.4);
}

.diferencial-title {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-white);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.diferencial-desc {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-muted);
}

/* Gallery Section */
.section-gallery {
  background-color: var(--color-dark);
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.gallery-container {
  max-width: 1500px;
  margin: 0 auto;
}

.gallery-header {
  text-align: center;
  margin-bottom: 5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}

.gallery-grid-item {
  overflow: hidden;
  position: relative;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  transition: transform 0.8s var(--transition-smooth);
}

.gallery-grid-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--transition-smooth);
}

.gallery-grid-item:hover {
  transform: translateY(-5px);
}

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

/* Gallery Grid Spans */
.item-large {
  grid-column: span 4;
  grid-row: span 2;
  height: 520px;
}

.item-medium {
  grid-column: span 2;
  grid-row: span 1;
  height: 250px;
}

.item-small {
  grid-column: span 3;
  grid-row: span 1;
  height: 320px;
}

.item-tall {
  grid-column: span 2;
  grid-row: span 2;
  height: 520px;
}

/* Responsive Overrides */
@media (max-width: 1200px) {
  .concept-container {
    gap: 4rem;
  }
  .specs-grid {
    gap: 2rem;
  }
  .diferenciais-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3.5rem 2.5rem;
  }
}

@media (max-width: 1024px) {
  .section-specs, .section-concept, .section-diferenciais, .section-gallery {
    padding: 8rem 3rem;
  }
  .specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .concept-container {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
  .concept-text-col {
    order: 1;
  }
  .concept-img-col {
    order: 2;
  }
  .item-large {
    grid-column: span 6;
    height: 400px;
  }
  .item-medium {
    grid-column: span 3;
    height: 220px;
  }
  .item-small {
    grid-column: span 3;
    height: 220px;
  }
  .item-tall {
    grid-column: span 3;
    height: 400px;
  }
}

@media (max-width: 768px) {
  .section-specs, .section-concept, .section-diferenciais, .section-gallery {
    padding: 6rem 2rem;
  }
  .section-title {
    font-size: 2.2rem;
  }
  .specs-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .spec-card {
    padding: 2rem;
  }
  .diferenciais-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .item-large, .item-medium, .item-small, .item-tall {
    grid-column: span 1;
    height: 260px;
  }
}

@media (max-width: 480px) {
  .section-specs, .section-concept, .section-diferenciais, .section-gallery {
    padding: 5rem 1.5rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
}

/* Custom Header Logo */
.header-logo {
  height: 28px;
  width: 56px; /* Explicit width prevents collapse in flex/grid contexts */
  display: block;
}

.header-logo path {
  fill: var(--color-white);
  transition: fill 0.4s var(--transition-smooth);
}

.brand-link:hover .header-logo path {
  fill: var(--color-gold) !important;
}

/* Custom CSS-only Gallery Placeholder Box */
.gallery-placeholder-box {
  background-color: rgba(255, 255, 255, 0.01) !important;
  border: 1px solid rgba(221, 211, 182, 0.08) !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 380px; /* Inherits standard main-item height */
  transition: border-color 0.5s var(--transition-smooth), background-color 0.5s var(--transition-smooth), transform 0.8s var(--transition-smooth);
  box-sizing: border-box;
}

.gallery-placeholder-box:hover {
  border-color: rgba(221, 211, 182, 0.25) !important;
  background-color: rgba(221, 211, 182, 0.03) !important;
}

.placeholder-text-simple {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-gold);
  letter-spacing: 0.4em;
  opacity: 0.5;
  transition: opacity 0.5s var(--transition-smooth), letter-spacing 0.5s var(--transition-smooth);
}

.gallery-placeholder-box:hover .placeholder-text-simple {
  opacity: 0.9;
  letter-spacing: 0.45em;
}

/* Floor Plan Section (Planta Baixa) */
.section-floorplan {
  background-color: #ffffff;
  color: #1a1a1a;
  padding: 10rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.floorplan-container {
  max-width: 1500px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.floorplan-description {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.85;
  color: #4a4a4a;
  max-width: 650px;
  margin: 0 auto 4rem auto;
}

.floorplan-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  background-color: #fbfbfb;
  padding: 2rem;
  transition: transform 0.8s var(--transition-smooth), box-shadow 0.8s var(--transition-smooth);
}

.floorplan-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.12);
}

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

@media (max-width: 1024px) {
  .section-floorplan {
    padding: 8rem 3rem;
  }
  .floorplan-wrapper {
    padding: 1.5rem;
  }
}

@media (max-width: 768px) {
  .section-floorplan {
    padding: 6rem 2rem;
  }
  .floorplan-description {
    margin-bottom: 2.5rem;
  }
  .floorplan-wrapper {
    padding: 1rem;
  }
}

/* ==========================================================================
   SEÇÃO INSTAGRAM
   ========================================================================== */
.instagram-section {
  background-color: #0a0a0a;
  color: var(--color-white);
  padding: 8rem 4rem;
  position: relative;
  width: 100vw;
  z-index: 4;
}

.instagram-container {
  max-width: 1500px;
  margin: 0 auto;
}

.instagram-header {
  text-align: center;
  margin-bottom: 4rem;
}

.instagram-handle {
  color: var(--color-white);
  text-decoration: none;
  position: relative;
  display: inline-block;
  transition: color 0.4s var(--transition-smooth);
}

.instagram-handle::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width 0.4s var(--transition-smooth), left 0.4s var(--transition-smooth);
}

.instagram-handle:hover {
  color: var(--color-gold);
}

.instagram-handle:hover::after {
  width: 100%;
  left: 0;
}

.instagram-carousel-wrapper {
  position: relative;
  width: 100%;
}

.instagram-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.instagram-card {
  display: block;
  text-decoration: none;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.instagram-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.instagram-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s var(--transition-smooth);
}

.instagram-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(6, 6, 6, 0.6);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s var(--transition-smooth);
}

.instagram-icon {
  width: 32px;
  height: 32px;
  color: var(--color-gold);
  transform: scale(0.8);
  transition: transform 0.4s var(--transition-smooth);
}

/* Hover Effects */
.instagram-card:hover .instagram-img {
  transform: scale(1.05);
}

.instagram-card:hover .instagram-overlay {
  opacity: 1;
}

.instagram-card:hover .instagram-icon {
  transform: scale(1);
}

/* Indicators */
.instagram-dots {
  display: none;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 2rem;
}

.insta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: rgba(250, 249, 246, 0.25);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.insta-dot.active {
  background-color: var(--color-gold);
  transform: scale(1.3);
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .instagram-section {
    padding: 6rem 3rem;
  }
  .instagram-grid {
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .instagram-section {
    padding: 5rem 0; /* padding lateral zero para o slider tocar as bordas */
  }
  
  .instagram-header {
    padding: 0 2rem;
    margin-bottom: 2.5rem;
  }
  
  .instagram-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    gap: 1rem;
    padding: 0 2rem;
    width: 100%;
    box-sizing: border-box;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
  }
  
  .instagram-grid::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
  }
  
  .instagram-card {
    flex: 0 0 calc(100% - 3rem); /* Mostra parte do card seguinte */
    scroll-snap-align: center;
  }
  
  .instagram-dots {
    display: flex;
  }
}

@media (max-width: 480px) {
  .instagram-card {
    flex: 0 0 calc(100% - 2rem);
  }
}