/* ==========================================================================
   DESIGN SYSTEM & FOUNDATIONS
   ========================================================================== */

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

:root {
  /* Colors */
  --bg-primary: #04020a;
  --bg-secondary: #0c0919;
  --bg-tertiary: #130f26;
  --bg-glass: rgba(12, 9, 25, 0.65);
  --border-glass: rgba(255, 255, 255, 0.07);
  --border-glass-active: rgba(0, 242, 254, 0.3);
  
  --color-cyan: #00f2fe;
  --color-violet: #9b51e0;
  --color-pink: #ff007f;
  --color-yellow: #ffd000;
  
  --color-gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  --color-gradient-accent: linear-gradient(135deg, var(--color-pink) 0%, var(--color-violet) 100%);
  --color-gradient-bg: radial-gradient(circle at 50% 50%, #150d33 0%, var(--bg-primary) 80%);
  --color-gradient-title: linear-gradient(180deg, #ffffff 0%, #aaaaaa 100%);

  --text-main: #f5f3f7;
  --text-muted: #9e9aa8;
  --text-inverse: #04020a;
  
  --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.4);
  --shadow-modal: 0 24px 50px rgba(0, 0, 0, 0.6);

  /* Fonts */
  --font-headings: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-normal: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

body.light-theme {
  --bg-primary: #f5f6fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #ebedf2;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --border-glass: rgba(0, 0, 0, 0.08);
  --border-glass-active: rgba(114, 9, 183, 0.3);
  
  --color-cyan: #00b4d8;
  --color-violet: #7209b7;
  --color-pink: #d90429;
  --color-yellow: #f39c12;
  
  --color-gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  --color-gradient-accent: linear-gradient(135deg, var(--color-pink) 0%, var(--color-violet) 100%);
  --color-gradient-bg: radial-gradient(circle at 50% 50%, #ebedf2 0%, var(--bg-primary) 80%);
  --color-gradient-title: linear-gradient(180deg, var(--text-main) 0%, var(--text-muted) 100%);

  --text-main: #1f242d;
  --text-muted: #626973;
  --text-inverse: #ffffff;

  --shadow-premium: 0 20px 40px rgba(4, 2, 10, 0.06);
  --shadow-modal: 0 24px 50px rgba(4, 2, 10, 0.12);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-violet) var(--bg-primary);
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  background-image: var(--color-gradient-bg);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-normal), background-image var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-violet);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

input, textarea, button {
  font-family: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* Canvas Background */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* ==========================================================================
   LAYOUT CONTAINERS
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

main {
  padding-top: var(--header-height);
  min-height: calc(100vh - var(--header-height) - 100px);
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  background-color: var(--bg-glass);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border-glass);
}

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

.logo {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--color-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo i {
  -webkit-text-fill-color: initial;
  color: var(--color-cyan);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

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

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

.nav-link:hover {
  color: var(--text-main);
}

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

.nav-link.active {
  color: var(--color-cyan);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-selector {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 30px;
  padding: 3px;
  gap: 2px;
}

body.light-theme .lang-selector {
  background: rgba(0, 0, 0, 0.03);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-headings);
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn.active {
  background: var(--color-gradient-primary);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

body.light-theme .lang-btn.active {
  box-shadow: 0 0 10px rgba(114, 9, 183, 0.2);
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-cyan);
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.theme-icon-light {
  display: none;
}
.theme-icon-dark {
  display: block;
}

body.light-theme .theme-icon-light {
  display: block;
}
body.light-theme .theme-icon-dark {
  display: none;
}

body.light-theme .theme-toggle:hover {
  color: var(--color-violet);
  border-color: var(--color-violet);
  box-shadow: 0 0 10px rgba(114, 9, 183, 0.2);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-main);
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-lang-li {
  display: none;
}

/* ==========================================================================
   ROUTING (PAGE CONTAINERS & ROUTER ANIMATIONS)
   ========================================================================== */

.page {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 100px 0 80px;
}

.page.active {
  display: block;
  animation: pageFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

/* ==========================================================================
   BUTTONS & ACCENTS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

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

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 242, 254, 0.2);
}

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

.btn-secondary {
  color: var(--text-main);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: blur(5px);
}

.btn-secondary:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-2px);
}

.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 32px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--border-glass-active);
  box-shadow: 0 12px 40px rgba(0, 242, 254, 0.03);
}

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

.section-tag {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  background: var(--color-gradient-title);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* ==========================================================================
   ROUTE 1: HOME PAGE
   ========================================================================== */

.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - var(--header-height) - 150px);
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 50px;
  color: var(--color-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title span.highlight {
  background: var(--color-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  min-height: 1.1em;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 550px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  border-top: 1px solid var(--border-glass);
  padding-top: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-headings);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  background: var(--color-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* Avatar Container with Animated Ring */
.avatar-wrapper {
  position: relative;
  justify-self: center;
}

.avatar-glow {
  position: absolute;
  top: -10px;
  left: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  border-radius: 50%;
  background: linear-gradient(0deg, var(--color-cyan), var(--color-violet), var(--color-pink));
  z-index: -1;
  animation: rotateGlow 10s linear infinite;
  filter: blur(15px);
  opacity: 0.6;
}

.avatar-container {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  padding: 5px;
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
}

.avatar-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--bg-secondary);
}

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ==========================================================================
   ROUTE 2: ABOUT ME PAGE
   ========================================================================== */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--text-main);
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

/* Skills Grid */
.skills-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.skill-category {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px;
}

.skill-category h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-cyan);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 500;
}

.skill-name {
  color: var(--text-main);
}

.skill-percentage {
  color: var(--color-violet);
}

.skill-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 10px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: var(--color-gradient-primary);
  width: 0;
  border-radius: 10px;
  transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Timeline/Experience */
.timeline-section {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-cyan) 0%, var(--color-violet) 50%, rgba(155, 81, 224, 0) 100%);
  transform: translateX(-50%);
}

.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 40px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 10px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--color-cyan);
  z-index: 10;
  box-shadow: 0 0 10px var(--color-cyan);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
  border-color: var(--color-violet);
  box-shadow: 0 0 10px var(--color-violet);
}

.timeline-content {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  padding: 24px;
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-cyan);
  margin-bottom: 8px;
  display: block;
}

.timeline-item:nth-child(even) .timeline-date {
  color: var(--color-violet);
}

.timeline-title {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   ROUTE 3: PROJECTS PAGE
   ========================================================================== */

/* Filter Controls */
.project-filters {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-muted);
  transition: var(--transition-normal);
}

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

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-cyan);
  box-shadow: 0 16px 40px rgba(0, 242, 254, 0.1);
}

.project-img-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
}

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

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

.project-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(4, 2, 10, 0.2) 0%, rgba(4, 2, 10, 0.9) 100%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  opacity: 0;
  transition: var(--transition-normal);
}

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

.project-info-summary {
  transform: translateY(10px);
  transition: var(--transition-normal);
}

.project-card:hover .project-info-summary {
  transform: translateY(0);
}

.project-mini-tag {
  font-size: 0.75rem;
  background: var(--color-cyan);
  color: var(--text-inverse);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

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

.project-title {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.project-card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.project-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-glass);
}

/* Project Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

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

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 2, 10, 0.85);
  backdrop-filter: blur(8px);
}

.modal-container {
  position: relative;
  width: 90%;
  max-width: 900px;
  max-height: 85vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow-y: auto;
  z-index: 10;
  box-shadow: var(--shadow-modal);
  transform: scale(0.9) translateY(20px);
  transition: var(--transition-normal);
}

.modal.active .modal-container {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 1.5rem;
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 12;
}

.modal-close:hover {
  background: rgba(255, 0, 127, 0.1);
  color: var(--color-pink);
  transform: rotate(90deg);
}

.modal-img-wrapper {
  position: relative;
  width: 100%;
  height: 480px;
  max-height: 55vh;
  background: var(--bg-tertiary);
  overflow: hidden;
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-img-wrapper img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* Carousel Buttons */
.modal-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(15, 12, 30, 0.7);
  border: 1px solid var(--border-glass);
  color: #ffffff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 5;
}

.modal-carousel-btn:hover {
  background: rgba(255, 0, 127, 0.2);
  color: var(--color-pink);
  border-color: var(--color-pink);
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
}

.modal-carousel-btn.prev {
  left: 20px;
}

.modal-carousel-btn.next {
  right: 20px;
}

.modal-gallery-thumbnails {
  display: flex;
  gap: 12px;
  padding: 16px 40px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-cyan) var(--bg-secondary);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-glass);
}

.modal-thumb {
  width: 80px;
  height: 50px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  object-fit: cover;
  cursor: pointer;
  opacity: 0.6;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.modal-thumb:hover, .modal-thumb.active {
  opacity: 1;
  border-color: var(--color-cyan);
}

.modal-body {
  padding: 40px;
}

.modal-header-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 24px;
}

.modal-category {
  font-size: 0.85rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 4px;
  display: block;
}

.modal-title {
  font-size: 2.2rem;
}

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

.modal-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.modal-tech-stack {
  margin-top: 24px;
}

.modal-tech-stack h5 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text-main);
}

/* ==========================================================================
   ROUTE 4: CONTACT ME PAGE
   ========================================================================== */

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: flex-start;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info-title {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.contact-info-desc {
  color: var(--text-muted);
}

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

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

.contact-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-cyan);
}

.contact-detail-item:nth-child(2) .contact-icon-box {
  background: rgba(155, 81, 224, 0.05);
  border-color: rgba(155, 81, 224, 0.15);
  color: var(--color-violet);
}

.contact-detail-item:nth-child(3) .contact-icon-box {
  background: rgba(255, 0, 127, 0.05);
  border-color: rgba(255, 0, 127, 0.15);
  color: var(--color-pink);
}

.contact-detail-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-detail-value {
  font-size: 1.05rem;
  font-weight: 500;
}

/* Form Styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-size: 1rem;
  transition: var(--transition-normal);
}

.form-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
  background: var(--bg-secondary);
}

.form-label {
  position: absolute;
  left: 20px;
  top: 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
  pointer-events: none;
  transition: var(--transition-normal);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: -10px;
  left: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-cyan);
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 4px;
}

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

.form-submit-wrapper {
  display: flex;
  justify-content: flex-end;
}

/* Success Animation Card (Feedback Modal) */
.success-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
  border-radius: var(--radius-md);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
  z-index: 5;
}

.success-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.success-icon-wrapper {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.08);
  border: 2px solid var(--color-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-cyan);
  margin-bottom: 24px;
  animation: pulseScale 2s infinite;
}

@keyframes pulseScale {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.4); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(0, 242, 254, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.success-title {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.success-desc {
  color: var(--text-muted);
  max-width: 350px;
  margin-bottom: 24px;
}

/* Confetti Canvas */
#confetti-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  border-top: 1px solid var(--border-glass);
  padding: 40px 0;
  background-color: rgba(4, 2, 10, 0.4);
  backdrop-filter: blur(5px);
  margin-top: 80px;
  z-index: 5;
  position: relative;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-family: var(--font-headings);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

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

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

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  transition: var(--transition-fast);
}

.social-link:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 242, 254, 0.15);
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--text-inverse);
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.3);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: var(--transition-normal);
  z-index: 90;
}

.back-to-top.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 242, 254, 0.5);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .header .container {
    padding: 0 16px;
  }

  .logo {
    font-size: 1.25rem;
    gap: 6px;
  }

  .nav-actions {
    gap: 8px;
  }

  .lang-selector {
    padding: 2px;
    gap: 1px;
    flex-shrink: 0;
  }

  .lang-btn {
    padding: 5px 8px;
    font-size: 0.7rem;
  }

  .theme-toggle {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
    flex-shrink: 0;
  }
  
  .header nav {
    position: absolute;
    width: 0;
    height: 0;
    overflow: visible;
  }

  .nav-actions #lang-selector {
    display: none;
  }

  .nav-links {
    display: none; /* Hide standard links for mobile overlay */
  }

  .mobile-lang-li {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 15px;
    border-top: 1px solid var(--border-glass);
    padding-top: 15px;
    width: 100%;
  }
  
  .nav-toggle {
    display: block;
    font-size: 1.35rem;
    padding: 4px;
    flex-shrink: 0;
  }
  
  .hero-section {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
    padding-top: 20px;
  }
  
  .hero-title {
    font-size: 2.6rem;
  }
  
  .hero-desc {
    margin: 0 auto 32px;
  }
  
  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
  }

  .project-filters {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
    margin-bottom: 32px;
  }

  .filter-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
  }
  
  .hero-stats {
    justify-content: center;
    gap: 24px;
    padding-top: 24px;
  }
  
  .avatar-container {
    width: 260px;
    height: 260px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .timeline-line {
    left: 24px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 56px;
    padding-right: 0;
  }
  
  .timeline-item:nth-child(odd) {
    text-align: left;
  }
  
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 16px;
    right: auto;
  }
  
  .timeline-item:nth-child(even) {
    left: 0;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .modal-carousel-btn {
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
  }
  .modal-carousel-btn.prev {
    left: 10px;
  }
  .modal-carousel-btn.next {
    right: 10px;
  }

  .page {
    padding: 80px 0 60px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-tag {
    padding: 4px 12px;
    font-size: 0.8rem;
    margin-bottom: 16px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 280px;
    margin: 0 auto 32px;
    gap: 12px;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    gap: 12px 20px;
    flex-wrap: wrap;
  }

  .avatar-container {
    width: 200px;
    height: 200px;
  }

  .project-filters {
    gap: 6px 10px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}

/* ==========================================================================
   LIGHT THEME SPECIFIC UI REFINEMENTS
   ========================================================================== */
body.light-theme .modal-close {
  background: rgba(0, 0, 0, 0.05);
}

body.light-theme .modal-close:hover {
  background: rgba(217, 4, 41, 0.1);
}

body.light-theme .modal-carousel-btn {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-main);
  box-shadow: 0 4px 12px rgba(4, 2, 10, 0.08);
}

body.light-theme .modal-carousel-btn:hover {
  background: var(--bg-secondary);
  color: var(--color-violet);
}

body.light-theme .footer {
  background-color: rgba(255, 255, 255, 0.45);
}

body.light-theme .filter-btn:hover,
body.light-theme .filter-btn.active {
  border-color: var(--color-violet);
  color: var(--color-violet);
  background: rgba(114, 9, 183, 0.08);
}

body.light-theme .btn-primary:hover {
  box-shadow: 0 10px 20px rgba(114, 9, 183, 0.15);
}