* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #787d5e;
  --dark: #2c2c2c;
  --light: #ffffff;
  --gray: #f5f5f5;
  --text-gray: #666;
  --transition-color-1: #e8e6e1;
  --transition-color-2: #d4d1c9;
  --transition-color-3: #b8b5ad;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  overflow-x: hidden;
}

/* ===== Navigation ===== */

nav {
  position: fixed;
  width: 100%;
  padding: 20px 50px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
}

nav.scrolled {
  padding: 15px 50px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  cursor: pointer;
  transition: opacity 0.3s ease;
  max-height: 50px;
  overflow: hidden;
}

.logo img {
  height: 40px;
  max-height: 40px;
  width: auto;
  max-width: 180px;
  display: block;
  object-fit: contain;
}

.logo:hover {
  opacity: 0.8;
}

.logo-text {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -1px;
  color: var(--primary-color);
  animation: logoFadeIn 0.4s ease;
}

@keyframes logoFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

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

/* ===== Dropdown ===== */

.nav-item {
  position: relative;
}

.dropdown {
  position: absolute;
  top: calc(100% + 15px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(120, 125, 94, 0.1);
  padding: 20px 0;
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 2000;
}

.dropdown::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid rgba(255, 255, 255, 0.98);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
}

.dropdown-item {
  display: block;
  padding: 12px 30px;
  color: var(--dark);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.dropdown-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--primary-color);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.dropdown-item:hover {
  background: rgba(120, 125, 94, 0.05);
  padding-left: 35px;
}

.dropdown-item:hover::before {
  transform: translateX(0);
}

.dropdown-label {
  padding: 8px 30px;
  font-size: 11px;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom: 1px solid rgba(120, 125, 94, 0.1);
  margin-bottom: 10px;
  font-weight: 500;
}

/* ===== Hero ===== */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-heading {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
  pointer-events: none;
}

.hero-heading h1 {
  font-size: clamp(100px, 20vw, 400px);
  font-weight: 800;
  letter-spacing: -4px;
  color: var(--dark);
  margin: 0;
  line-height: 0.85;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.3s forwards;
}

.hero .tagline {
  font-size: 16px;
  color: var(--text-gray);
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 20px;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.5s forwards;
}

/* ===== Hero Slider ===== */

.hero-slider {
  position: relative;
  width: 45%;
  z-index: 2;
  overflow: hidden;
}

.hero-slider-track {
  position: relative;
  aspect-ratio: 3 / 2;
}

.hero-slider-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  opacity: 0;
}

.hero-slider-slide:first-child {
  opacity: 1;
}

.hero-slider-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== Color Transition Section ===== */

.color-transition {
  position: relative;
  height: 200vh;
  background: linear-gradient(
    180deg,
    var(--gray) 0%,
    var(--transition-color-1) 25%,
    var(--transition-color-2) 50%,
    var(--transition-color-3) 75%,
    var(--light) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
}

.transition-content {
  position: sticky;
  top: 50vh;
  transform: translateY(-50%);
  text-align: center;
  width: 100%;
  padding: 0 50px;
}

.transition-text {
  font-size: clamp(28px, 5vw, 65px);
  font-weight: 600;
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: var(--dark);
  text-transform: uppercase;
  text-align: center;
  opacity: 0;
  transform: translateY(50px);
  transition:
    opacity 1s ease,
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 1000px;
  margin: 0 auto;
  line-height: 1.05;
}

.transition-text.visible {
  opacity: 1;
  transform: translateY(0);
}

.color-waves {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 0;
}

.color-wave {
  position: absolute;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at center,
    rgba(120, 125, 94, 0.1) 0%,
    transparent 70%
  );
  animation: wave-animation 15s infinite ease-in-out;
}

.color-wave:nth-child(1) {
  animation-delay: 0s;
  left: -50%;
  top: -50%;
}

.color-wave:nth-child(2) {
  animation-delay: 5s;
  right: -50%;
  bottom: -50%;
}

.color-wave:nth-child(3) {
  animation-delay: 10s;
  left: -25%;
  bottom: -25%;
}

.parallax-element {
  position: absolute;
  width: 100px;
  height: 100px;
  background: var(--primary-color);
  opacity: 0.05;
  border-radius: 50%;
  will-change: transform;
}

/* ===== About & Services ===== */

.about {
  padding: 80px 50px;
  background: var(--light);
}

.about-portrait {
  max-width: 600px;
  margin: 0 auto;
  overflow: hidden;
}

.about-portrait.fade-in {
  opacity: 0;
  transform: translateY(60px) scale(0.95);
  transition:
    opacity 1s ease,
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.about-portrait .self-image {
  width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text h2 {
  font-size: clamp(80px, 5vw, 150px);
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--primary-color);
  text-transform: uppercase;
}

.about-text p {
  font-size: 19px;
  line-height: 1.55;
  color: var(--text-gray);
  margin-bottom: 20px;
  font-weight: 500;
}

.about-image {
  position: relative;
  height: 560px;
  width: 100%;
  overflow: hidden;
  opacity: 0.9;
}

.services {
  padding: 120px 50px;
  background: var(--gray);
}

.section-title {
  text-align: center;
  font-size: 40px;
  font-weight: 300;
  margin-bottom: 60px;
  color: var(--dark);
}

.portfolio .section-title {
  color: var(--light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background: var(--light);
  padding: 50px 40px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.service-card:hover::before {
  transform: translateX(0);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-number {
  font-size: 48px;
  font-weight: 100;
  color: var(--primary-color);
  opacity: 0.3;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 24px;
  font-weight: 400;
  margin-bottom: 15px;
  letter-spacing: -0.5px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.6;
}

/* ===== Circle Reveal ===== */

.circle-reveal-wrapper {
  position: relative;
  height: 280vh;
  background: #f5f5f5;
}

.circle-reveal-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  background: #f5f5f5;
}

.circle-reveal-circle {
  position: absolute;
  border-radius: 50%;
  background: #787d5e;
  width: 0;
  height: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* ===== Portfolio ===== */

.portfolio {
  position: relative;
  margin-top: -1200px;
  padding: 10px 50px;
  background: var(--primary-color);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.portfolio-item {
  position: relative;
  height: 400px;
  background: var(--primary-color);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.portfolio-item:hover {
  transform: scale(0.98);
}

.portfolio-item.highlight {
  animation: highlightPulse 2s ease;
  box-shadow: 0 0 30px rgba(120, 125, 94, 0.3);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h3 {
  color: var(--primary-color);
  font-size: 24px;
  font-weight: 300;
  margin-bottom: 10px;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay p {
  transform: translateY(0);
}

/* ===== Contact ===== */

.contact {
  padding: 120px 50px;
  background: var(--primary-color);
  color: var(--light);
  text-align: center;
}

.contact h2 {
  font-size: 40px;
  font-weight: 300;
  margin-bottom: 30px;
}

.contact-info {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.9;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--light);
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

.contact-btn:hover {
  transform: scale(1.08);
  opacity: 0.85;
}

/* ===== Footer ===== */

footer {
  padding: 30px;
  background: var(--dark);
  color: var(--light);
  text-align: center;
  font-size: 14px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 20px;
}

.footer-links a {
  color: white;
  text-decoration: none;
  font-size: 14px;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 0.7;
}

.footer-divider {
  width: 40px;
  height: 1px;
  background: #787d5e;
  margin: 20px auto;
}

/* ===== Animations ===== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes wave-animation {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(50px, -50px) scale(1.2);
    opacity: 0.8;
  }
}

@keyframes highlightPulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 30px rgba(120, 125, 94, 0);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 30px rgba(120, 125, 94, 0.4);
  }
}

/* ===== Hamburger Menu ===== */

.hamburger {
  display: none;
  width: 30px;
  height: 24px;
  position: relative;
  cursor: pointer;
  z-index: 1002;
  transition: all 0.3s ease;
}

.hamburger span {
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger span:nth-child(1) {
  top: 0;
}

.hamburger span:nth-child(2) {
  top: 11px;
}

.hamburger span:nth-child(3) {
  bottom: 0;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* ===== Mobile Menu ===== */

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100vh;
  background: var(--light);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
  transition: right 0.3s ease;
  z-index: 1001;
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-content {
  padding: 80px 30px 30px;
}

.mobile-nav-links {
  list-style: none;
  padding: 0;
}

.mobile-nav-links li {
  margin-bottom: 10px;
}

.mobile-nav-links a {
  display: block;
  padding: 15px 20px;
  color: var(--dark);
  text-decoration: none;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.mobile-nav-links a:hover,
.mobile-nav-links a:active {
  background: var(--gray);
  border-left-color: var(--primary-color);
  padding-left: 30px;
}

.mobile-dropdown {
  position: relative;
}

.mobile-dropdown-toggle {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-dropdown-toggle span {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.mobile-dropdown.active .mobile-dropdown-toggle span {
  transform: rotate(180deg);
}

.mobile-dropdown-menu {
  display: none;
  list-style: none;
  padding: 0;
  background: var(--gray);
  margin: 5px 0 10px 0;
}

.mobile-dropdown.active .mobile-dropdown-menu {
  display: block;
}

.mobile-dropdown-menu a {
  padding: 12px 20px 12px 40px;
  font-size: 14px;
  border-left: 3px solid transparent;
}

.mobile-dropdown-menu a:hover {
  background: rgba(120, 125, 94, 0.1);
  border-left-color: var(--primary-color);
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

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

body.menu-open {
  overflow: hidden;
}

.mobile-menu-btn {
  display: none;
}

/* ===== Fade-in utility ===== */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition:
    opacity 1s ease,
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition:
    opacity 1s ease 0.2s,
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

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

/* ===== Responsive: Mobile ===== */

@media (max-width: 768px) {
  nav {
    padding: 15px 20px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .hero-slider {
    width: 90%;
  }

  .hero-heading {
    top: 58%;
  }

  .hero-heading h1 {
    font-size: clamp(72px, 22vw, 120px);
    letter-spacing: -2px;
  }

  .color-transition {
    height: 100vh;
  }

  .services {
    padding: 80px 20px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-text h2 {
    font-size: clamp(36px, 10vw, 60px);
  }

  .about-text p {
    font-size: 16px;
  }

  .about-image {
    height: 300px;
  }

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

  .section-title {
    font-size: 30px;
  }

  .portfolio {
    padding: 120px 5px;
    margin-top: -1400px;
  }

  .portfolio-overlay {
    opacity: 1;
  }

  .portfolio-overlay h3 {
    transform: translateY(0);
  }

  .portfolio-item {
    height: 365px;
  }

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

  .self-image {
    max-width: 100%;
    height: auto;
    display: block;
  }
}

/* ===== Responsive: Desktop ===== */

@media (min-width: 769px) {
  .mobile-menu {
    display: none !important;
  }

  .hamburger {
    display: none !important;
  }

  .mobile-menu-overlay {
    display: none !important;
  }

  .portfolio-img {
    height: 100%;
    display: block;
    object-fit: contain;
  }

  .self-image {
    max-width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
  }
}