/* ============================================
   SILENT LUXURY - GLOBAL STYLES
   ============================================ */

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

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

:root {
  /* Silent Luxury Color Palette */
  --bg-primary: #121212;
  --bg-secondary: #1a1a1a;
  --text-primary: #f9f9f9;
  --text-secondary: #d4d4d4;
  --text-muted: #a0a0a0;
  --accent: #c9a961; /* Subtle gold accent */
  --border: rgba(255, 255, 255, 0.1);
  
  /* Typography */
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  scroll-behavior: auto; /* Instant scroll - no delay */
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden; /* Only horizontal overflow hidden */
  overflow-y: auto; /* Allow vertical scroll */
}

/* ============================================
   THREE.JS CANVAS CONTAINER (SUBTLE BACKGROUND)
   ============================================ */

#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.3;
}

#canvas-container canvas {
  display: block;
}

/* ============================================
   NAVIGATION
   ============================================ */

nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(18, 18, 18, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-links a:hover {
  color: var(--text-primary);
}

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 0.5rem;
}

.mobile-toggle span {
  width: 25px;
  height: 1px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 1400px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-text {
  max-width: 600px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.hero-title .line {
  display: block;
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.hero-text p {
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  margin-bottom: 2.5rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 550px;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.btn {
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 2px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  letter-spacing: 0.05em;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: #d4b877;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-img {
  width: clamp(280px, 30vw, 450px);
  height: clamp(280px, 30vw, 450px);
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  filter: grayscale(20%);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: 8rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 2rem 0;
}

.about-text {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.about-text p {
  margin-bottom: 1.5rem;
}

.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image {
  width: 100%;
  max-width: 750px;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid var(--border);
  filter: grayscale(10%);
}

/* ============================================
   SKILLS SECTION
   ============================================ */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.skill-card {
  background: var(--bg-secondary);
  padding: 2.5rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.skill-category {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-name {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
  font-weight: 400;
  font-size: 0.95rem;
}

.skill-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0;
  transition: width 1.2s ease-out;
}

/* ============================================
   EDUCATION SECTION
   ============================================ */

.education-timeline {
  position: relative;
  padding-left: 3rem;
}

.education-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 1px;
  background: var(--border);
}

.education-item {
  position: relative;
  margin-bottom: 3rem;
  padding: 2.5rem;
  background: var(--bg-secondary);
  border-radius: 4px;
  border-left: 2px solid var(--accent);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.education-item:hover {
  border-color: var(--accent);
  transform: translateX(8px);
}

.education-item::before {
  content: "";
  position: absolute;
  left: -3.6rem;
  top: 2.5rem;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
}

.education-year {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.education-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin: 0.5rem 0;
  font-weight: 600;
}

.education-item p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
}

.project-image-wrapper {
  width: 100%;
  height: 250px;
  overflow: hidden;
  position: relative;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: grayscale(20%);
}

.project-card:hover img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.project-content {
  padding: 2rem;
}

.project-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-weight: 600;
}

.project-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.project-title a:hover {
  color: var(--accent);
}

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

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.contact-item:hover {
  border-color: var(--accent);
  transform: translateX(8px);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  font-weight: 600;
}

.contact-item p {
  color: var(--text-secondary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: var(--font-sans);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-primary);
}

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

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

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background: var(--bg-primary);
    backdrop-filter: blur(20px);
    width: 100%;
    padding: 2rem;
    transition: left 0.4s ease;
    border-top: 1px solid var(--border);
    gap: 1.5rem;
  }

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

  .hero-content,
  .about-content,
  .contact-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-text {
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .social-links {
    justify-content: center;
  }

  .projects-grid {
    grid-template-columns: 1fr; /* 1 column on mobile */
  }

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

  section {
    padding: 5rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr); /* 3 columns on desktop */
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Ensure all content is visible */
section {
  visibility: visible !important;
  opacity: 1 !important;
  display: block !important;
}

/* ============================================
   CHATBOT STYLES
   ============================================ */

/* Custom Scrollbar for Chat Messages */
#chat-messages {
  scrollbar-width: thin;
  scrollbar-color: rgba(201, 169, 97, 0.3) transparent;
}

#chat-messages::-webkit-scrollbar {
  width: 6px;
}

#chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

#chat-messages::-webkit-scrollbar-thumb {
  background: rgba(201, 169, 97, 0.3);
  border-radius: 3px;
}

#chat-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(201, 169, 97, 0.5);
}

/* Message Styling */
.message {
  animation: slideUpFade 0.4s ease-out;
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Chat Window Responsive */
@media (max-width: 640px) {
  .chat-window {
    max-width: 100% !important;
    height: 100vh !important;
    border-radius: 0 !important;
    margin: 0 !important;
  }

  #chat-bubble {
    bottom: 1rem !important;
    right: 1rem !important;
    width: 3.5rem !important;
    height: 3.5rem !important;
    z-index: 9999 !important;
  }

  #chat-overlay {
    padding: 0 !important;
  }
}

/* Ensure chat bubble is always clickable */
#chat-bubble {
  pointer-events: auto !important;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Prevent chat window from being scaled incorrectly */
.chat-window {
  transform-origin: center center;
}

/* Fallback float animation if GSAP not loaded */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}