@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- DESIGN SYSTEM & VARIABLES --- */
:root {
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing */
  --header-height: 80px;
  --section-padding: 100px 0;

  /* Theme: Dark (Default) */
  --bg-primary: #07080d;
  --bg-secondary: #0d0f18;
  --bg-tertiary: #141724;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-primary: #00f2fe; /* Cyber Neon Cyan */
  --accent-secondary: #7f00ff; /* Neon Purple */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  --accent-gradient-hover: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-primary) 100%);
  
  --card-bg: rgba(13, 15, 24, 0.6);
  --card-border: rgba(255, 255, 255, 0.05);
  --card-shadow: rgba(0, 0, 0, 0.4);
  
  --nav-bg: rgba(7, 8, 13, 0.75);
  
  --glow-color: rgba(0, 242, 254, 0.15);
  --selection-bg: rgba(0, 242, 254, 0.2);
  --selection-text: #ffffff;
}

[data-theme="light"] {
  /* Theme: Light */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-primary: #0ea5e9; /* Sky Blue */
  --accent-secondary: #8b5cf6; /* Indigo */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  --accent-gradient-hover: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-primary) 100%);
  
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(15, 23, 42, 0.08);
  --card-shadow: rgba(15, 23, 42, 0.05);
  
  --nav-bg: rgba(248, 250, 252, 0.8);
  
  --glow-color: rgba(14, 165, 233, 0.1);
  --selection-bg: rgba(14, 165, 233, 0.2);
  --selection-text: #0f172a;
}

/* --- RESET & GENERAL STYLES --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

::selection {
  background-color: var(--selection-bg);
  color: var(--selection-text);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 5px;
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

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

li {
  list-style: none;
}

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

button, input, textarea {
  font-family: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* --- LAYOUT UTILITIES --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.grid {
  display: grid;
  gap: 32px;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* --- TYPOGRAPHY & TEXT --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-glow {
  text-shadow: 0 0 15px var(--glow-color);
}

/* --- GLASSMORPHISM & UTILITIES --- */
.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--card-border);
  box-shadow: 0 8px 32px 0 var(--card-shadow);
  border-radius: 20px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
  border-color: rgba(0, 242, 254, 0.25);
  box-shadow: 0 12px 40px 0 rgba(0, 242, 254, 0.08);
}

/* Background Blobs (Dynamic Orbs) */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  z-index: 0;
  opacity: 0.15;
  pointer-events: none;
  animation: floatOrb 20s infinite alternate ease-in-out;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--accent-primary);
  top: 10%;
  left: -10%;
  animation-duration: 25s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--accent-secondary);
  bottom: 20%;
  right: -10%;
  animation-duration: 30s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-primary);
  top: 50%;
  left: 60%;
  animation-duration: 18s;
}

/* --- HEADER / NAVIGATION --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: height var(--transition-normal), background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  background-color: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  color: var(--accent-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 8px 0;
  color: var(--text-secondary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

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

/* Theme Toggle Button */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-primary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.theme-toggle .sun-icon {
  display: none;
}

[data-theme="light"] .theme-toggle .moon-icon {
  display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
  display: block;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-normal);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 14px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  color: #07080d;
  background: var(--accent-gradient);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-gradient-hover);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 242, 254, 0.35);
}

[data-theme="light"] .btn-primary {
  color: #ffffff;
}

.btn-secondary {
  color: var(--text-primary);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-3px);
  background: rgba(0, 242, 254, 0.05);
}

/* --- HERO SECTION --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 40px);
}

.hero-grid {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

.hero-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-primary);
  margin-bottom: 16px;
  display: block;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -2px;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

/* Futuristic graphic around image */
.avatar-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  background: var(--accent-gradient);
  animation: morphAvatar 12s ease-in-out infinite alternate;
  padding: 5px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  filter: contrast(1.05) saturate(1.1);
}

.glowing-ring {
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  border: 1px dashed var(--accent-primary);
  border-radius: 50%;
  animation: rotateRing 40s linear infinite;
  opacity: 0.4;
}

/* --- ABOUT SECTION --- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-subtitle {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-primary);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -1px;
}

.about-grid {
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.about-content h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.about-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.info-card {
  padding: 24px;
  text-align: left;
}

.info-card i {
  font-size: 2rem;
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.info-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.info-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* --- SKILLS SECTION --- */
.skills-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.skills-card {
  padding: 32px;
  text-align: center;
}

.skill-icon-wrapper {
  width: 70px;
  height: 70px;
  border-radius: 18px;
  background: var(--bg-tertiary);
  margin: 0 auto 24px;
  color: var(--accent-primary);
  font-size: 1.8rem;
  border: 1px solid var(--card-border);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.skills-card:hover .skill-icon-wrapper {
  transform: translateY(-5px) rotate(8deg);
  color: #fff;
  background: var(--accent-gradient);
  border-color: transparent;
}

.skills-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.skills-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.skills-list {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.skill-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
}

/* --- PROJECTS SECTION --- */
.projects-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 20px;
  border-radius: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(0, 242, 254, 0.05);
}

.projects-grid {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-image-box {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(7, 8, 13, 0.9) 0%, rgba(7, 8, 13, 0.2) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

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

.project-links {
  display: flex;
  gap: 12px;
}

.project-link-btn {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #07080d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

[data-theme="light"] .project-link-btn {
  color: #fff;
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.project-category {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-primary);
  letter-spacing: 1px;
}

.project-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

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

.project-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tags span {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* --- EXPERIENCE SECTION --- */
.experience-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.experience-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 32px;
  height: 100%;
  width: 2px;
  background: var(--card-border);
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: 48px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 23px;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 4px solid var(--accent-primary);
  z-index: 2;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-secondary);
  border-color: var(--accent-secondary);
}

.timeline-card {
  padding: 32px;
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: block;
}

.timeline-card h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: block;
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- CONTACT SECTION --- */
.contact-grid {
  grid-template-columns: 0.8fr 1.2fr;
  align-items: flex-start;
}

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

.contact-item {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--bg-tertiary);
  color: var(--accent-primary);
  font-size: 1.4rem;
  border: 1px solid var(--card-border);
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-details p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Form Styles */
.contact-form {
  padding: 40px;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 24px;
  position: relative;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 8px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
  box-shadow: 0 0 0 3px var(--glow-color);
}

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

/* Error States */
.form-input.invalid {
  border-color: #ef4444;
}

.error-message {
  font-size: 0.8rem;
  color: #ef4444;
  margin-top: 4px;
  display: none;
}

.form-input.invalid + .error-message {
  display: block;
}

/* --- FOOTER --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--card-border);
  background-color: var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

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

/* --- SCROLL REVEAL ANIMATIONS (Intersection Observer) --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --- KEYFRAME ANIMATIONS --- */
@keyframes floatOrb {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, -50px) scale(1.1);
  }
  100% {
    transform: translate(-20px, 40px) scale(0.9);
  }
}

@keyframes rotateRing {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes morphAvatar {
  0% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  50% {
    border-radius: 50% 50% 30% 70% / 50% 60% 40% 50%;
  }
  100% {
    border-radius: 60% 40% 60% 40% / 40% 50% 50% 60%;
  }
}

/* --- RESPONSIVE MEDIA QUERIES --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }
  
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .experience-timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 50px;
  }
  
  .timeline-dot {
    left: 11px;
  }
}

@media (max-width: 768px) {
  .header {
    position: sticky;
    background-color: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  :root {
    --section-padding: 80px 0;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 280px;
    height: calc(100vh - var(--header-height));
    background: var(--bg-secondary);
    border-left: 1px solid var(--card-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 40px;
    gap: 24px;
    transition: right var(--transition-normal);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(16px);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.1rem;
    width: 100%;
  }
  
  .form-group-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .contact-form {
    padding: 24px;
  }
  
  .avatar-wrapper {
    width: 260px;
    height: 260px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }
  
  .about-info-grid {
    grid-template-columns: 1fr;
  }
}

/* --- LANGUAGE TOGGLE STYLES --- */
.lang-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: 0 0 10px var(--glow-color);
}

/* Language Visibility Rules */
html[data-lang="en"] .lang-uk {
  display: none !important;
}
html[data-lang="uk"] .lang-en {
  display: none !important;
}

/* --- MODAL DIALOG STYLE --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 8, 13, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  max-width: 800px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
  border-radius: 20px;
  animation: scaleUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: rotate(90deg);
}

.modal-subtitle {
  display: block;
  font-size: 1.1rem;
  color: var(--accent-primary);
  margin-bottom: 24px;
  font-weight: 500;
}

.modal-details-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 32px;
  text-align: left;
}

.modal-details-text h3, .modal-details-sidebar h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  font-family: var(--font-heading);
}

.modal-details-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.modal-details-sidebar {
  border-left: 1px solid var(--card-border);
  padding-left: 24px;
}

.impact-metric {
  background: var(--bg-secondary);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  margin-top: 24px;
}

.metric-num {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  font-family: var(--font-heading);
}

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

@keyframes scaleUp {
  from {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .modal-details-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .modal-details-sidebar {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--card-border);
    padding-top: 24px;
  }
}

/* --- PROCESS SECTION --- */
.process-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-card {
  padding: 32px 24px;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  overflow: hidden;
}

.process-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-gradient);
  opacity: 0.7;
}

.process-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.15);
}

.process-step-num {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(0, 242, 254, 0.15);
  font-family: var(--font-heading);
  line-height: 1;
  margin-bottom: 16px;
  transition: color var(--transition-fast);
}

.process-card:hover .process-step-num {
  color: var(--accent-primary);
}

.process-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-family: var(--font-heading);
}

.process-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Telegram Buttons & Quick Connect */
.btn-telegram {
  background: rgba(0, 136, 204, 0.15);
  border: 1px solid rgba(0, 136, 204, 0.4);
}

.btn-telegram:hover {
  background: rgba(0, 136, 204, 0.3) !important;
  border-color: #0088cc !important;
  color: #ffffff !important;
  box-shadow: 0 8px 24px rgba(0, 136, 204, 0.35);
}

.contact-quick-tg {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  width: 100%;
}

.contact-quick-tg span {
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-align: left;
}

.btn-tg-quick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  background: #0088cc;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-tg-quick:hover {
  background: #0077b5;
  transform: translateY(-2px);
}

@media (max-width: 992px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
  .contact-quick-tg {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .btn-tg-quick {
    justify-content: center;
  }
}

/* --- MOBILE WOBBLE / OVERFLOW FIX --- */
html, body {
  overflow-x: hidden !important;
  max-width: 100% !important;
  width: 100% !important;
  position: relative;
}

/* --- BACK TO TOP BUTTON --- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--card-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-size: 1.25rem;
  box-shadow: 0 8px 32px 0 var(--card-shadow);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: 0 12px 40px 0 rgba(0, 242, 254, 0.25);
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
  }
}

/* --- ORB CONTAINER TO PREVENT OVERFLOW --- */
.orb-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* --- MOBILE SPECIFIC HEADER SIZING (PREVENTING OVERFLOW) --- */
@media (max-width: 480px) {
  .logo {
    font-size: 1.15rem !important;
  }
  
  .nav-actions {
    gap: 8px !important;
  }
  
  .theme-toggle, .lang-toggle, .mobile-menu-btn {
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
    font-size: 0.95rem !important;
  }
  
  .container {
    padding: 0 12px !important;
  }
  
  .nav-links {
    width: 240px !important;
    padding: 30px 20px !important;
  }
  
  .projects-grid {
    grid-template-columns: 1fr !important;
  }
}