/* --- THEME VARIABLES --- */
:root {
  /* Dark Mode (Default) */
  --bg-color: #0f0f0f;
  --text-color: #e0e0e0;
  --nav-bg: rgba(15, 15, 15, 0); /* Transparent initially */
  --nav-blur-bg: rgba(15, 15, 15, 0.85); /* Blurred on scroll */
  --card-bg: #0a0a0a;
  --border-color: #222;
  --input-border: #555;
  --accent-color: #d4af37;
  --font-serif: "Cormorant Garamond", serif;
  --font-sans: "Montserrat", sans-serif;

  /* Selected Works Dimensions */
  --marquee-img-width: 300px;
  --marquee-img-height: 250px;
  --marquee-gap: 15px;
}

/* Light Mode Overrides */
body.light-mode {
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --nav-bg: rgba(255, 255, 255, 0);
  --nav-blur-bg: rgba(255, 255, 255, 0.9);
  --card-bg: #f5f5f5;
  --border-color: #ddd;
  --input-border: #bbb;
  --accent-color: #c5a028; /* Darker gold for contrast */
}

/* --- RESET --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  color: var(--text-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s, color 0.3s;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}
ul {
  list-style: none;
}
img {
  width: 90%;
}
.hidden {
  display: none !important;
}

/* --- CRITICAL FIX: SCROLL MARGIN --- */
section,
footer {
  scroll-margin-top: 100px;
}

/* --- PRELOADER --- */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-color);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 20000;
  transition: transform 0.6s ease-in-out;
}
.preloader.hidden {
  transform: translateY(-100%);
}
.preloader-text {
  font-family: var(--font-serif);
  font-size: 3rem;
  letter-spacing: 5px;
  opacity: 0;
  animation: fadeInOut 2s forwards;
}
@keyframes fadeInOut {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.1);
  }
}

/* --- NAVIGATION --- */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(0px);
  transition: background 0.3s ease, backdrop-filter 0.3s ease, padding 0.3s ease;
}

nav.scrolled {
  background: var(--nav-blur-bg);
  backdrop-filter: blur(15px);
  padding: 10px 20px;
  border-bottom: 1px solid rgba(128, 128, 128, 0.1);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-color);
}

.nav-desktop {
  display: flex;
  gap: 40px;
  align-items: center;
}
.nav-desktop a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 300;
  color: var(--text-color);
  opacity: 0.8;
}
.nav-desktop a:hover {
  color: var(--accent-color);
  opacity: 1;
}

.theme-toggle {
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.2rem;
  transition: transform 0.3s;
}
.theme-toggle:hover {
  color: var(--accent-color);
  transform: rotate(15deg);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
}
.bar {
  width: 20px;
  height: 2px;
  background-color: var(--text-color);
  transition: 0.3s;
}

/* --- GLASSMORPHISM MOBILE OVERLAY --- */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-color);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 30px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-menu-overlay.active {
  transform: translateX(0);
}

.mobile-link {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--text-color);
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.2;
  text-align: center;
}
.mobile-link:hover {
  color: var(--accent-color);
}

/* --- HERO SECTION --- */
.hero {
  height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
}
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}
.slide.active {
  opacity: 1;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transform: scale(1.05);
  transition: transform 8s ease, filter 1s ease;
}
.slide.active img {
  transform: scale(1);
}
.hero:hover .slide.active img {
  filter: grayscale(0%);
}
.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  z-index: 2;
  width: 90%;
}
.hero-subtitle {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 15px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.4s;
  color: var(--accent-color);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 1;
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.6s;
  font-weight: 400;
}
.btn-outline {
  display: inline-block;
  padding: 10px 30px;
  border: 1px solid #fff;
  color: #fff;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 3px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
}
.btn-outline:hover {
  background: #fff;
  color: #000;
}
.slide.active .hero-subtitle,
.slide.active .hero-title,
.slide.active .btn-outline {
  opacity: 1;
  transform: translateY(0);
}

/* --- ABOUT SECTION (UPDATED) --- */
.about-section {
  padding: 80px 5%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
}

.about-image {
  flex: 1;
  min-width: 300px;
  /* CHANGE 1: Image Size Thoda Chota (Reduced from 500px) */
  height: 400px;
  position: relative;
  overflow: hidden; /* Crucial for Zoom Effect */
  border-radius: 5px;
}

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

  /* Default: Black & White (Grayscale) */
  filter: grayscale(100%);

  /* CHANGE 3: Smooth transition for Zoom and Color */
  transition: filter 0.6s ease, transform 0.6s ease;
}

/* CHANGE 2 & 3: Hover Effects (Black to Color + Zoom) */
.about-image:hover img {
  filter: grayscale(0%); /* Color */
  transform: scale(1.08); /* Thodi Zoom */
}

.about-content {
  flex: 1;
  min-width: 300px;
}

.section-subtitle {
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.7rem;
  margin-bottom: 15px;
  display: block;
}
.about-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 25px;
  line-height: 1.2;
  color: var(--text-color);
}
.about-text {
  color: var(--text-color);
  margin-bottom: 25px;
  font-size: 0.95rem;
  font-weight: 300;
  opacity: 0.8;
}
.stats {
  display: flex;
  gap: 30px;
  border-top: 1px solid var(--border-color);
  padding-top: 25px;
}
.stat-item h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--text-color);
}
.stat-item p {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-color);
  opacity: 0.6;
  letter-spacing: 1px;
}

/* --- ANIMATIONS (About Section) --- */
/* Text Animation (Fade Up) */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Image Animation (Slide in from Left) */
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease;
}
.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

/* --- SELECTED WORKS (MARQUEE) --- */
.portfolio-section {
  padding: 80px 0;
  overflow: hidden;
}
.portfolio-header {
  text-align: center;
  margin-bottom: 50px;
  padding: 0 20px;
}
.portfolio-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--text-color);
}

.marquee-row {
  width: 100%;
  overflow: hidden;
  margin-bottom: 25px;
  position: relative;
}
.marquee-track {
  display: flex;
  width: max-content;
}

.marquee-img {
  width: var(--marquee-img-width);
  height: var(--marquee-img-height);
  margin: 0 var(--marquee-gap);
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}
.marquee-img:hover {
  filter: grayscale(0%);
}

.row-1 .marquee-track {
  animation: scrollLeft 25s linear infinite;
}
.row-2 .marquee-track {
  animation: scrollRight 25s linear infinite;
}
.row-3 .marquee-track {
  animation: scrollLeft 25s linear infinite;
}
.marquee-row:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes scrollLeft {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-1890px);
  }
}
@keyframes scrollRight {
  0% {
    transform: translateX(-1890px);
  }
  100% {
    transform: translateX(0);
  }
}

/* --- SERVICES SECTION --- */
.services-section {
  padding: 80px 5%;
  background-color: var(--card-bg);
}
.services-header {
  text-align: center;
  margin-bottom: 60px;
}
.services-header h2 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: var(--text-color);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.service-card {
  padding: 30px;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.service-card:hover {
  border-color: var(--accent-color);
  transform: translateY(-5px);
}
.service-icon {
  font-size: 1.8rem;
  color: var(--accent-color);
  margin-bottom: 15px;
  font-family: var(--font-serif);
  font-style: italic;
}
.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-family: var(--font-serif);
  color: var(--text-color);
}
.service-card p {
  color: var(--text-color);
  font-size: 0.85rem;
  font-weight: 300;
  opacity: 0.7;
}

/* --- CONTACT SECTION --- */
.contact-section {
  padding: 80px 5%;
  /* background-image: url("https://images.unsplash.com/photo-1452587925148-ce544e77e70d?q=80&w=2070&auto=format&fit=crop"); */
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}
.contact-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(5px);
}
.contact-container {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.contact-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: #fff;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.form-group {
  position: relative;
}
.form-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--input-border);
  padding: 10px 0;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s ease;
}
.form-input:focus {
  border-bottom: 1px solid var(--accent-color);
}
.form-input::placeholder {
  color: #ccc;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.8rem;
}
.form-input:focus::placeholder {
  color: var(--accent-color);
}
.submit-btn {
  margin-top: 15px;
  padding: 12px 40px;
  background: transparent;
  color: #fff;
  border: 1px solid var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.75rem;
  transition: all 0.3s ease;
  align-self: center;
  cursor: pointer;
}
.submit-btn:hover {
  background: var(--accent-color);
  color: #000;
}

/* --- FOOTER --- */
footer {
    background-color: #050505;
    color: #fff;
    padding: 20px 5% 10px 5%;
    border-top: 1px solid #222;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.social-item {
    color: #999;
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.social-item:hover {
    color: var(--accent-color);
    transform: scale(1.2);
}

.copyright {
    color: #666;
    font-size: 0.85rem;
    margin-top: 10px;
}

/* --- RESPONSIVE (TABLET & MOBILE) --- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.5rem;
  }
  .nav-desktop {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }

  :root {
    --marquee-img-width: 150px;
    --marquee-img-height: 150px;
  }
  @keyframes scrollLeft {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-1590px);
    }
  }
  @keyframes scrollRight {
    0% {
      transform: translateX(-1590px);
    }
    100% {
      transform: translateX(0);
    }
  }
}

@media (max-width: 768px) {
  .mobile-menu-overlay {
    padding: 40px 20px;
    overflow-y: auto;
  }
  .mobile-link {
    font-size: 1.8rem;
  }
  .hero-title {
    font-size: 2.8rem;
  }
  .hero-subtitle {
    font-size: 0.8rem;
  }

  .about-section {
    flex-direction: column;
    text-align: center;
    padding: 60px 5%;
  }
  .about-image {
    width: 100%;
    height: 350px;
    order: 2;
  }
  .about-content {
    order: 1;
  }
  .stats {
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
  }

  .services-section {
    padding: 60px 5%;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }

  :root {
    --marquee-img-width: 160px;
    --marquee-img-height: 110px;
  }
  @keyframes scrollLeft {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-1290px);
    }
  }
  @keyframes scrollRight {
    0% {
      transform: translateX(-1290px);
    }
    100% {
      transform: translateX(0);
    }
  }

  footer {
    padding: 20px 5% 10px 5%;
  }
  .footer-logo {
    font-size: 1.2rem;
  }
  .social-item {
    /* padding: 4px 12px; */
    font-size: 1.3rem;
  }
  .contact-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 0.7rem;
  }
  .btn-outline {
    padding: 8px 20px;
    font-size: 0.65rem;
  }
}

@media (min-width: 1440px) {
  :root {
    --marquee-img-width: 140px;
    --marquee-img-height: 140px;
  }
  @keyframes scrollLeft {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-2190px);
    }
  }
  @keyframes scrollRight {
    0% {
      transform: translateX(-2190px);
    }
    100% {
      transform: translateX(0);
    }
  }
}