/* ==========================================================================
   Ritika Chhaperwal - Interior Design Portfolio Style Sheet
   ========================================================================== */

/* Custom Variables for Color Palette & Grid System */
:root {
  --bg-color: #F5F2EB;          /* Elegant Warm Ivory/Cream background */
  --text-primary: #1C1B18;      /* Deep Charcoal for rich contrast */
  --text-muted: #57554F;        /* Secondary muted charcoal */
  --accent-gold: #9C8463;       /* Muted architectural brass/gold accent */
  --accent-gold-light: #C4B59F; /* Soft light gold */
  --border-color: #E2DDD3;      /* Subtle border color */
  --white: #FFFFFF;
  --black: #000000;
  
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', Helvetica, Arial, sans-serif;
  
  --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  --header-height: 80px;
}

/* Global Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-smooth);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-gold-light);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold);
}

/* Utility Layout Containers */
.section-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 100px 80px;
}

@media (max-width: 1024px) {
  .section-container {
    padding: 80px 40px;
  }
}

@media (max-width: 768px) {
  .section-container {
    padding: 60px 20px;
  }
}

.section-tag {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent-gold);
  margin-bottom: 12px;
  font-weight: 500;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 40px;
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2.2rem;
    margin-bottom: 24px;
  }
}

/* Headers & Navigation Styles */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(245, 242, 235, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 221, 211, 0.4);
  transition: var(--transition-fast);
}

.main-header.scrolled {
  height: 70px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
}

.nav-container {
  max-width: 1440px;
  height: 100%;
  margin: 0 auto;
  padding: 0 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 1024px) {
  .nav-container {
    padding: 0 40px;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 20px;
  }
}

.logo {
  display: flex;
  flex-direction: column;
}

.designer-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.designer-title {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--accent-gold);
  margin-top: 2px;
}

.nav-menu ul {
  list-style: none;
  display: flex;
  gap: 40px;
}

.nav-link {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
}

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

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

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
}

.menu-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-color);
    padding: 40px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .nav-menu ul {
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin-top: 10vh;
  }
  
  .nav-link {
    font-size: 1.2rem;
  }
  
  /* Menu Burger toggle animation states */
  .menu-toggle.open .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-toggle.open .bar:nth-child(2) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* Hero Section Styles */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--bg-color);
  overflow: hidden;
}

.hero-container-flat {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 80px;
  display: flex;
  justify-content: center;
}

@media (max-width: 1024px) {
  .hero-container-flat {
    padding: 0 40px;
  }
}

@media (max-width: 768px) {
  .hero-container-flat {
    padding: 0 20px;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-subtitle {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-title-main {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 300;
  line-height: 1.05;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.hero-statement {
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1.5;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 600px;
  text-align: center;
}

@media (max-width: 768px) {
  .hero-title-main {
    font-size: 3.2rem;
    letter-spacing: 0.02em;
  }
  
  .hero-statement {
    font-size: 1.15rem;
    margin-bottom: 30px;
  }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  padding: 14px 28px;
  background-color: var(--text-primary);
  color: var(--bg-color);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border: 1px solid var(--text-primary);
  transition: var(--transition-fast);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--text-primary);
}

.btn-primary svg {
  transition: transform 0.3s ease;
}

.btn-primary:hover svg {
  transform: translateX(5px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 20px;
}

.scroll-text {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.scroll-line {
  width: 40px;
  height: 1px;
  background-color: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--accent-gold);
  animation: scrollLineAnim 2s infinite ease;
}

@keyframes scrollLineAnim {
  0% { left: -100%; }
  50% { left: 100%; }
  100% { left: 100%; }
}

/* About Section Styles */
.about-section {
  border-bottom: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

.about-visual {
  position: sticky;
  top: 120px;
}

@media (max-width: 1024px) {
  .about-visual {
    position: relative;
    top: 0;
  }
}

.about-image-wrapper {
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--white);
  padding: 10px;
}

.about-image {
  width: 100%;
  height: 500px;
  object-fit: cover;
  filter: grayscale(10%);
}

@media (max-width: 768px) {
  .about-image {
    height: 350px;
  }
}

.about-tagline {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.tagline-text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
}

.tagline-loc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.bio-paragraph {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 50px;
  font-weight: 300;
}

/* Timeline & CV Styling */
.resume-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

@media (max-width: 768px) {
  .resume-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.block-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 24px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-item {
  position: relative;
  padding-left: 15px;
  border-left: 1px solid var(--accent-gold-light);
}

.timeline-year {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 4px;
}

.timeline-heading {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Skills Block */
.skills-languages-section {
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

.block-title-small {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-gold);
  margin-bottom: 16px;
  font-weight: 600;
}

.skills-block {
  margin-bottom: 30px;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  background-color: rgba(28, 27, 24, 0.04);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.skill-tag:hover {
  background-color: var(--text-primary);
  color: var(--bg-color);
}

.two-column-meta {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 600px) {
  .two-column-meta {
    grid-template-columns: 1fr;
  }
}

.meta-text {
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* Projects Showcase Section Styles */
.projects-section {
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 60px;
}

.project-showcase {
  display: grid;
  grid-template-columns: 0.35fr 0.65fr;
  gap: 80px;
  padding: 40px 0;
  align-items: start;
}

@media (max-width: 1024px) {
  .project-showcase {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.project-info {
  position: sticky;
  top: 120px;
}

@media (max-width: 1024px) {
  .project-info {
    position: relative;
    top: 0;
  }
}

.project-number {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 1;
  color: var(--accent-gold-light);
  display: block;
  margin-bottom: 10px;
  font-weight: 300;
}

.project-meta {
  margin-bottom: 24px;
}

.project-name {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 400;
  margin-bottom: 6px;
}

.project-location {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.project-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.project-media {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.main-render-wrapper {
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: zoom-in;
  background-color: var(--white);
}

.main-render {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.main-render:hover {
  transform: scale(1.03);
}

@media (max-width: 768px) {
  .main-render {
    height: 300px;
  }
}

/* Gallery Grid Formats */
.project-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.project-gallery-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

@media (max-width: 600px) {
  .project-gallery,
  .project-gallery-3col {
    grid-template-columns: 1fr;
  }
}

.gallery-item {
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 4/3;
  cursor: zoom-in;
  background-color: var(--white);
}

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

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

.margin-top-small {
  margin-top: 20px;
}

/* Project Divider */
.project-divider {
  border: none;
  height: 1px;
  background-color: var(--border-color);
  margin: 80px 0;
}

/* Technical / Space Layout Planning block */
.technical-drawing-block {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 40px 0;
  margin: 20px 0;
}

.drawings-heading {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.layout-grid-custom {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 800px) {
  .layout-grid-custom {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.layout-drawing-wrapper {
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: zoom-in;
  background-color: var(--white);
  padding: 10px;
}

.technical-drawing {
  width: 100%;
  object-fit: contain;
}

.legend-panel {
  background-color: rgba(28, 27, 24, 0.02);
  border: 1px solid var(--border-color);
  padding: 24px;
}

.legend-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.legend-list {
  padding-left: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.legend-list li {
  margin-bottom: 8px;
}

/* Children & Doctor Renders Gallery */
.project-gallery-renders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .project-gallery-renders {
    grid-template-columns: 1fr;
  }
}

.gallery-render-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gallery-render-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border: 1px solid var(--border-color);
  cursor: zoom-in;
  background-color: var(--white);
}

.gallery-render-card img:hover {
  transform: scale(1.03);
}

.render-label {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
  border-left: 2px solid var(--accent-gold);
  padding-left: 8px;
}

/* Contact/Connect Section Styles */
.contact-section {
  border-bottom: 1px solid var(--border-color);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

.contact-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 20px;
}

.contact-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-weight: 300;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
  color: var(--text-primary);
  width: max-content;
}

.contact-detail-item svg {
  color: var(--accent-gold);
}

.contact-detail-item:hover {
  color: var(--accent-gold);
}

/* Form Styles */
.contact-form-panel {
  background-color: rgba(28, 27, 24, 0.02);
  border: 1px solid var(--border-color);
  padding: 40px;
}

@media (max-width: 600px) {
  .contact-form-panel {
    padding: 24px;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-gold);
  background-color: var(--white);
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background-color: var(--text-primary);
  color: var(--bg-color);
  padding: 14px 28px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  transition: var(--transition-fast);
}

.btn-submit:hover {
  background-color: var(--accent-gold);
  color: var(--bg-color);
}

.btn-submit svg {
  transition: transform 0.3s ease;
}

.btn-submit:hover svg {
  transform: translate(3px, -3px);
}

.form-status {
  font-size: 0.85rem;
  text-align: center;
  font-weight: 500;
  min-height: 20px;
}

.form-status.success {
  color: green;
}

.form-status.error {
  color: red;
}

/* Lightbox Modal Styles */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(28, 27, 24, 0.97);
  z-index: 2000;
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.lightbox-modal.open {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 3rem;
  color: var(--bg-color);
  transition: var(--transition-fast);
  z-index: 2100;
}

.lightbox-close:hover {
  color: var(--accent-gold);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  color: var(--bg-color);
  padding: 20px;
  transition: var(--transition-fast);
  z-index: 2100;
  user-select: none;
}

.lightbox-nav:hover {
  color: var(--accent-gold);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

@media (max-width: 600px) {
  .lightbox-nav {
    font-size: 1.8rem;
    padding: 10px;
  }
  .lightbox-prev { left: 5px; }
  .lightbox-next { right: 5px; }
}

.lightbox-content {
  max-width: 85%;
  max-height: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border: 1px solid rgba(226, 221, 211, 0.2);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  margin-top: 20px;
  color: rgba(245, 242, 235, 0.8);
  font-size: 0.95rem;
  font-family: var(--font-serif);
  letter-spacing: 0.05em;
  text-align: center;
}

/* Footer Section Styles */
.main-footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
}

.footer-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .footer-container {
    padding: 0 40px;
  }
}

@media (max-width: 768px) {
  .footer-container {
    padding: 0 20px;
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Intersection Observer Scroll Animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUpAnim 1.2s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes fadeInUpAnim {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}