/* ==========================================================================
   PREMIUM WHITE DESIGN SYSTEM - CORE VARIABLES & TOKENS
   ========================================================================== */

:root {
  /* Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #fafafc;
  --bg-tertiary: #f4f4f7;
  --bg-surface: rgba(255, 255, 255, 0.75);
  --bg-surface-solid: #ffffff;
  
  --text-primary: #111111;
  --text-secondary: #3e3e42;
  --text-muted: #86868b;
  --text-on-accent: #ffffff;

  --accent-blue: #0066cc;
  --accent-blue-glow: rgba(0, 102, 204, 0.06);
  --border-light: rgba(0, 0, 0, 0.05);
  --border-medium: rgba(0, 0, 0, 0.09);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.02);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.015);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.025);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.04);
  --shadow-premium: 0 30px 60px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
  --shadow-inset: inset 0 1px 2px rgba(255, 255, 255, 0.9);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Transitions & Springs */
  --ease-spring: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-apple);
  --transition-medium: 0.4s var(--ease-apple);
  --transition-slow: 0.7s var(--ease-apple);
  
  /* Layout */
  --header-height: 80px;
  --max-width: 1400px;
}

/* Dark Mode Variables Override */
body.dark-mode {
  --bg-primary: #0A0A0C;
  --bg-secondary: #121215;
  --bg-tertiary: #191920;
  --bg-surface: rgba(10, 10, 12, 0.75);
  --bg-surface-solid: #121215;

  --text-primary: #ffffff;
  --text-secondary: #e4e4e7;
  --text-muted: #8e8e93;

  --border-light: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --glass-bg: rgba(10, 10, 12, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.35);
  --shadow-premium: 0 30px 60px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(255, 255, 255, 0.02);
  --shadow-inset: inset 0 1px 2px rgba(255, 255, 255, 0.05);
  
  --accent-blue-glow: rgba(59, 130, 246, 0.12);
}

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

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  line-height: 1.5;
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

p {
  color: var(--text-secondary);
  letter-spacing: -0.005em;
}

a {
  color: inherit;
  text-decoration: none;
}

.font-mono {
  font-family: var(--font-mono);
}

/* Ambient dynamic background lighting */
.ambient-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 102, 204, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  top: 0;
  left: 0;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease-out;
}

/* ==========================================================================
   PREMIUM PRELOADER / INTRO ENGINE
   ========================================================================== */

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.preloader.fade-out {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-20px);
}

.preloader-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.preloader-svg {
  width: 70px;
  height: 70px;
}

#logo-path, #logo-path-inner {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: drawStroke 2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  stroke: var(--text-primary);
}

#logo-path-inner {
  animation-delay: 0.3s;
}

@keyframes drawStroke {
  to {
    stroke-dashoffset: 0;
  }
}

.loading-bar-wrapper {
  width: 180px;
  height: 2px;
  background: var(--bg-tertiary);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background: var(--text-primary);
  border-radius: 1px;
  transition: width 0.4s ease-out;
}

.loading-text {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* ==========================================================================
   CUSTOM CURSOR SYSTEM
   ========================================================================== */

.cursor-dot {
  width: 6px;
  height: 6px;
  background-color: var(--text-primary);
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.2s;
}

.cursor-ring {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-medium);
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: width 0.3s cubic-bezier(0.25, 1, 0.5, 1), 
              height 0.3s cubic-bezier(0.25, 1, 0.5, 1), 
              border-color 0.3s, background-color 0.3s;
}

.cursor-label {
  color: var(--bg-primary);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

/* Cursor State Variations */
body.cursor-hover .cursor-dot {
  width: 0px;
  height: 0px;
}

body.cursor-hover .cursor-ring {
  width: 50px;
  height: 50px;
  background-color: rgba(0, 0, 0, 0.03);
  border-color: var(--text-primary);
}

body.cursor-view-project .cursor-dot {
  width: 0px;
  height: 0px;
}

body.cursor-view-project .cursor-ring {
  width: 80px;
  height: 80px;
  background-color: var(--text-primary);
  border-color: var(--text-primary);
}

body.cursor-view-project .cursor-label {
  opacity: 1;
  transform: scale(1);
}

/* Disable default cursor on desktop */
@media (pointer: fine) {
  html, body, a, button, input, textarea {
    cursor: none;
  }
}

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

.scroll-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 3px;
  z-index: 1000;
  pointer-events: none;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent-blue);
  transition: width 0.1s linear;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 99;
  display: flex;
  align-items: center;
  transition: background var(--transition-medium), border var(--transition-medium);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background-color: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  height: 70px;
}

.nav-container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.3rem;
  color: var(--text-primary);
}

.logo-symbol {
  width: 32px;
  height: 32px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  position: relative;
}

.logo-text {
  font-weight: 700;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--text-primary);
  transition: width var(--transition-fast), left var(--transition-fast);
}

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

.nav-link.active {
  color: var(--text-primary);
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
  left: 0;
}

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

/* Theme Toggle Button Styling */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--border-medium);
  background-color: var(--bg-tertiary);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: transform 0.5s var(--ease-apple), opacity 0.5s var(--ease-apple);
}

/* Light mode icon configurations */
body:not(.dark-mode) .theme-toggle .sun-icon {
  opacity: 0;
  transform: translateY(20px) rotate(45deg);
}

body:not(.dark-mode) .theme-toggle .moon-icon {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}

/* Dark mode icon configurations */
body.dark-mode .theme-toggle .sun-icon {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}

body.dark-mode .theme-toggle .moon-icon {
  opacity: 0;
  transform: translateY(-20px) rotate(-45deg);
}

.btn-nav-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-nav-contact:hover {
  background-color: #333333;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background-color: #34c759;
  border-radius: 50%;
  position: relative;
}

.status-indicator::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #34c759;
  animation: pulseStatus 2s infinite;
}

@keyframes pulseStatus {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 30px;
  height: 30px;
}

.toggle-bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Drawer Overlay */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  z-index: 98;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: translateY(-100%);
  transition: transform var(--transition-medium);
}

.mobile-nav-drawer.open {
  transform: translateY(0);
}

.mobile-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.mobile-link {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.mobile-link.highlight {
  font-size: 1.5rem;
  padding: 12px 28px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 30px;
  margin-top: 12px;
  display: inline-block;
}

.mobile-drawer-footer {
  position: absolute;
  bottom: 40px;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
}

/* ==========================================================================
   GLOBAL LAYOUT & SECTIONS
   ========================================================================== */

.section {
  padding: 140px 0;
  position: relative;
  z-index: 2;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  max-width: 650px;
  margin-bottom: 80px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-blue);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.section-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: #2a2a2e;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

.btn-icon {
  display: flex;
  align-items: center;
}

/* ==========================================================================
   HERO SECTION & ANTIGRAVITY STYLES
   ========================================================================== */

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-container {
  position: relative;
}

.antigravity-scene {
  position: absolute;
  top: -18%;
  left: -8%;
  width: 116%;
  height: 136%;
  pointer-events: none;
  z-index: 3;
}

/* Floating engine elements */
.float-element {
  position: absolute;
  width: 48px;
  height: 48px;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: opacity 0.5s ease, border-color var(--transition-fast), box-shadow var(--transition-fast);
  pointer-events: auto; /* Allow hovering to trigger cursor */
  will-change: transform;
}

/* Brand-specific Floating Technology Colors */
.float-react svg { color: rgba(97, 218, 251, 0.85); }
.float-firebase svg { color: rgba(255, 202, 40, 0.9); }
.float-php svg { color: rgba(119, 123, 180, 0.9); }
.float-mysql svg { color: rgba(68, 121, 161, 0.9); }
.float-javascript svg { color: rgba(225, 200, 10, 0.95); }
.float-typescript svg { color: rgba(49, 120, 198, 0.9); }
.float-laravel svg { color: rgba(255, 45, 32, 0.9); }
.float-ionic svg { color: rgba(56, 128, 255, 0.9); }
.float-git svg { color: rgba(240, 80, 50, 0.9); }
.float-github svg { color: rgba(24, 23, 23, 0.85); }

.float-element svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  transition: transform var(--transition-fast), color var(--transition-fast), filter var(--transition-fast);
}

.float-element:hover svg {
  transform: scale(1.18);
}

/* Specific hovers with premium ambient glow colored shadows */
.float-react:hover { border-color: rgba(97, 218, 251, 0.4); box-shadow: 0 10px 25px rgba(97, 218, 251, 0.15); }
.float-firebase:hover { border-color: rgba(255, 202, 40, 0.4); box-shadow: 0 10px 25px rgba(255, 202, 40, 0.15); }
.float-php:hover { border-color: rgba(119, 123, 180, 0.4); box-shadow: 0 10px 25px rgba(119, 123, 180, 0.15); }
.float-mysql:hover { border-color: rgba(68, 121, 161, 0.4); box-shadow: 0 10px 25px rgba(68, 121, 161, 0.15); }
.float-javascript:hover { border-color: rgba(247, 223, 30, 0.4); box-shadow: 0 10px 25px rgba(247, 223, 30, 0.15); }
.float-typescript:hover { border-color: rgba(49, 120, 198, 0.4); box-shadow: 0 10px 25px rgba(49, 120, 198, 0.15); }
.float-laravel:hover { border-color: rgba(255, 45, 32, 0.4); box-shadow: 0 10px 25px rgba(255, 45, 32, 0.15); }
.float-ionic:hover { border-color: rgba(56, 128, 255, 0.4); box-shadow: 0 10px 25px rgba(56, 128, 255, 0.15); }
.float-git:hover { border-color: rgba(240, 80, 50, 0.4); box-shadow: 0 10px 25px rgba(240, 80, 50, 0.15); }
.float-github:hover { border-color: rgba(24, 23, 23, 0.4); box-shadow: 0 10px 25px rgba(24, 23, 23, 0.15); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-tagline-wrap {
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 6px 14px;
  border-radius: 20px;
}

.hero-headline {
  font-size: 4.2rem;
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 24px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--text-primary) 30%, #55555d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subheading {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 40px;
}

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

/* 3D Profile Card */
.hero-visual-column {
  display: flex;
  justify-content: center;
  perspective: 1200px;
  position: relative;
  z-index: 2;
}

.profile-depth-card {
  position: relative;
  z-index: 2;
  width: 340px;
  height: 440px;
  border-radius: 28px;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-premium);
  transform-style: preserve-3d;
  transition: transform 0.1s ease-out;
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background: radial-gradient(circle at 50% 50%, rgba(0, 102, 204, 0.08) 0%, rgba(255, 255, 255, 0) 60%);
  pointer-events: none;
  z-index: 1;
}

.profile-frame {
  position: absolute;
  top: 12px;
  left: 12px;
  width: calc(100% - 24px);
  height: calc(100% - 24px);
  border-radius: 20px;
  overflow: hidden;
  background-color: var(--bg-tertiary);
  transform: translateZ(10px);
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.01); /* Enable natural, authentic profile colors */
  transition: transform var(--transition-slow);
}

.profile-depth-card:hover .profile-image {
  transform: scale(1.03);
}

.noise-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
}

.floating-badge {
  position: absolute;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-light);
  padding: 8px 16px;
  border-radius: 30px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: translateZ(28px);
  pointer-events: none;
}

body.dark-mode .floating-badge {
  color: #ffffff !important;
  background-color: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.badge-top-left {
  top: 30px;
  left: -20px;
}

.badge-bottom-right {
  bottom: 40px;
  right: -25px;
}

/* Scroll indicator */
.scroll-indicator-wrap {
  position: absolute;
  bottom: 0px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-indicator {
  display: block;
  width: 26px;
  height: 44px;
  border: 1.5px solid var(--border-medium);
  border-radius: 13px;
  position: relative;
}

.scroll-dot {
  width: 4px;
  height: 4px;
  background-color: var(--text-primary);
  border-radius: 50%;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollAnim 1.8s infinite;
}

@keyframes scrollAnim {
  0% {
    top: 8px;
    opacity: 0.8;
  }
  50% {
    top: 22px;
    opacity: 0.2;
  }
  100% {
    top: 8px;
    opacity: 0.8;
  }
}

/* Staggered load reveal states */
.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease-apple), transform 1s var(--ease-apple);
}

.reveal-element.revealed {
  opacity: 1;
  transform: translateY(0);
}

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

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.about-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: transform 0.1s ease-out, border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.about-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.about-card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 102, 204, 0.03) 0%, rgba(255,255,255,0) 60%);
  pointer-events: none;
}

.about-icon {
  width: 56px;
  height: 56px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  margin-bottom: 28px;
}

.about-card h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
}

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

/* Personal story map */
.story-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  background-color: var(--bg-tertiary);
  border-radius: 28px;
  padding: 60px;
  align-items: center;
}

.story-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.story-text p {
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.story-text p:last-child {
  margin-bottom: 0;
}

.story-stats {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.stat-box {
  border-left: 2px solid var(--text-primary);
  padding-left: 20px;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ==========================================================================
   PROJECTS SECTION & MORPHING STATES
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.project-card {
  background-color: var(--bg-primary);
  border-radius: 24px;
  overflow: hidden;
  transition: transform var(--transition-medium);
}

.project-card-visual {
  width: 100%;
  height: 380px;
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  transition: transform var(--transition-medium);
}

.project-image-wrap {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image-wrap {
  transform: scale(1.06) translateY(-5px); /* Premium responsive zoom and translation */
}

.project-card:hover .project-card-visual {
  box-shadow: var(--shadow-lg);
}

/* Pastels / Light theme visual representations */
.project-fallback-bg {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.visual-digitrike {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
}

.visual-eunoiamind {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.visual-osas {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
}

.visual-supply {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.visual-marienglish {
  background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
}

.floating-asset {
  font-weight: 800;
  color: var(--text-primary);
  padding: 12px 24px;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
  position: absolute;
}

.asset-1 {
  font-size: 1.4rem;
  top: 35%;
  transform: rotate(-4deg);
}

.asset-2 {
  font-size: 0.9rem;
  top: 55%;
  left: 20%;
  transform: rotate(3deg);
  opacity: 0.7;
}

.asset-3 {
  font-size: 0.85rem;
  top: 15%;
  right: 15%;
  background: var(--accent-blue);
  color: var(--bg-primary);
  border-radius: 30px;
}

/* Hover reveal action overlay - Smooth slide from bottom */
.project-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  transform: translateY(100%);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.55s var(--ease-apple), transform 0.55s var(--ease-apple);
  z-index: 3;
}

.project-card:hover .project-card-overlay {
  opacity: 1;
  transform: translateY(0);
}

.btn-morph-view {
  padding: 12px 28px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  transform: translateY(30px);
  opacity: 0;
  transition: transform 0.65s var(--ease-apple), opacity 0.65s var(--ease-apple);
}

.project-card:hover .btn-morph-view {
  transform: translateY(0);
  opacity: 1;
  transition-delay: 0.08s;
}

.project-card-info {
  padding: 24px 8px;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.project-tag-pill {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
}

.project-card-title {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.project-card-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   SKILLS SECTION INTERACTIVE ELEMENTS
   ========================================================================== */

.skills-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.skills-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
  background: var(--bg-secondary);
  padding: 8px;
  border-radius: 30px;
  border: 1px solid var(--border-light);
}

.tab-btn {
  background: none;
  border: none;
  flex: 0 1 auto;
  padding: 10px 24px;
  border-radius: 20px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn.active {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
}

.skills-panel {
  display: none;
}

.skills-panel.active {
  display: block;
  animation: panelFadeIn var(--transition-medium);
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.skill-meter-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 24px;
}

.skill-meter-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-weight: 700;
}

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

.skill-pct {
  color: var(--accent-blue);
  font-family: var(--font-mono);
}

.skill-meter-track {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 14px;
}

.skill-meter-fill {
  height: 100%;
  background: var(--text-primary);
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-meter-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* ==========================================================================
   EXPERIENCE SECTION (TIMELINE)
   ========================================================================== */

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 32px;
  width: 2px;
  background-color: var(--border-medium);
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: 60px;
}

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

.timeline-dot {
  position: absolute;
  left: 25px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 4px solid var(--text-primary);
  z-index: 2;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.timeline-item.active .timeline-dot {
  background-color: var(--accent-blue);
  border-color: var(--bg-primary);
  box-shadow: 0 0 0 6px rgba(0, 102, 204, 0.15);
}

.timeline-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-category {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  border-radius: 4px;
}

.timeline-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 30px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.timeline-item.active .timeline-card {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  background-color: var(--bg-primary);
}

.timeline-card h3 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.timeline-org {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 14px;
}

.timeline-card p {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ==========================================================================
   CONTACT SECTION & INTERACTIVE FORM
   ========================================================================== */

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

.contact-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.contact-desc {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
}

.contact-method-item {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 16px;
}

.method-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.method-link {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: inline-block;
  transition: color var(--transition-fast);
}

.method-link:hover {
  color: var(--accent-blue);
}

.method-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

.social-link-btn {
  padding: 10px 20px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.social-link-btn:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

/* Floating Input Forms */
.contact-form {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 28px;
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.form-group {
  position: relative;
  margin-bottom: 36px;
}

.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 12px 0;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border-medium);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  outline: none;
}

.textarea-input {
  resize: none;
}

.form-label {
  position: absolute;
  top: 12px;
  left: 0;
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
  transition: transform 0.3s var(--ease-apple), color 0.3s var(--ease-apple);
  transform-origin: 0 0;
}

/* Floating Label Animation States */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label,
.form-input:valid ~ .form-label,
.form-input:-webkit-autofill ~ .form-label {
  transform: translateY(-24px) scale(0.8);
  color: var(--text-primary);
  font-weight: 600;
}

.form-input:-webkit-autofill {
  -webkit-text-fill-color: var(--text-primary);
  transition: background-color 9999s ease-in-out 0s;
}

.form-border {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--text-primary);
  transition: width 0.4s var(--ease-apple);
}

.form-input:focus ~ .form-border {
  width: 100%;
}

.btn-submit {
  width: 100%;
  justify-content: center;
  border: none;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-family: var(--font-sans);
  cursor: pointer;
}

.btn-submit:hover {
  background-color: #2a2a2e;
}

/* Form Success Notification Layer */
.form-success-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px;
  z-index: 5;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.form-success-layer.active {
  transform: translateY(0);
}

.success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: rgba(52, 199, 89, 0.1);
  color: #34c759;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.form-success-layer.error .success-icon {
  background-color: rgba(255, 59, 48, 0.1);
  color: #ff3b30;
}

.form-success-layer h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.form-success-layer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 280px;
}

/* ==========================================================================
   CASE STUDY MORPHING OVERLAY
   ========================================================================== */

.case-study-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-primary);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  overflow-y: auto;
  transition: opacity var(--transition-medium);
}

.case-study-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.case-study-close {
  position: fixed;
  top: 30px;
  right: 40px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.case-study-close:hover {
  transform: scale(1.05);
  border-color: var(--border-medium);
}

.case-study-container {
  width: 90%;
  max-width: 900px;
  margin: 120px auto 140px;
}

/* Expanded case-study visual stylings */
.case-header {
  margin-bottom: 60px;
}

.case-category-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.case-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.case-intro-block {
  display: grid;
  grid-template-columns: 1.5fr 0.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.case-lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.case-meta-spec {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.spec-item {
  border-left: 2px solid var(--border-medium);
  padding-left: 14px;
}

.spec-lbl {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
}

.spec-val {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.case-hero-visual {
  width: 100%;
  height: 480px;
  border-radius: 28px;
  overflow: hidden;
  margin-bottom: 80px;
  border: 1px solid var(--border-light);
}

.case-section-block {
  margin-bottom: 60px;
}

.case-section-block h3 {
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.case-section-block p {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.case-section-block p:last-child {
  margin-bottom: 0;
}

.case-features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.feature-pill-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 24px;
}

.feature-pill-card h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-pill-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.case-links-group {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  border-top: 1px solid var(--border-light);
  padding-top: 40px;
}

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

.footer {
  border-top: 1px solid var(--border-light);
  padding: 60px 0;
  background-color: var(--bg-secondary);
}

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

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

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

/* ==========================================================================
   SCROLL REVEALS
   ========================================================================== */

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.2s var(--ease-apple), transform 1.2s var(--ease-apple);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVENESS BREAKPOINTS
   ========================================================================== */

@media (max-width: 1440px) {
  .hero-headline {
    font-size: 3.5rem;
  }
  .section-title {
    font-size: 2.4rem;
  }
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 90px;
    text-align: center;
  }
  
  .hero-text-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-subheading {
    max-width: 600px;
  }
  
  .hero-ctas {
    justify-content: center;
  }

  .hero-visual-column {
    padding: 18px 0 24px;
  }
  
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .about-card.tall-card-3d:last-child {
    grid-column: span 2;
  }
  
  .story-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .mobile-nav-toggle {
    display: flex;
    z-index: 101;
  }
  
  .nav-menu {
    display: none;
  }

  .case-hero-visual {
    height: 380px;
    margin-bottom: 60px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }
  
  .hero-headline {
    font-size: 2.8rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .about-card.tall-card-3d:last-child {
    grid-column: span 1;
  }
  
  .skills-panel-grid {
    grid-template-columns: 1fr;
  }

  .antigravity-scene {
    top: -8%;
    height: 118%;
  }

  .skills-tabs {
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
    border-radius: 24px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .tab-btn {
    flex: 0 0 auto;
    min-width: max-content;
    padding: 11px 16px;
    white-space: nowrap;
    line-height: 1.25;
    text-align: center;
    scroll-snap-align: start;
  }
  
  .case-intro-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .case-title {
    font-size: 2.4rem;
  }
  
  .case-features-list {
    grid-template-columns: 1fr;
  }
  
  .case-study-close {
    top: 20px;
    right: 20px;
  }
  
  .footer-container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .case-hero-visual {
    height: 280px;
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: 2.2rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .profile-depth-card {
    width: 280px;
    height: 360px;
  }

  .antigravity-scene {
    left: -14%;
    width: 128%;
  }
  
  .contact-form {
    padding: 24px;
  }

  .skills-tabs {
    gap: 8px;
    margin-bottom: 32px;
  }

  .timeline {
    max-width: 100%;
  }

  .timeline-line {
    left: 12px;
  }

  .timeline-item {
    padding-left: 36px;
  }

  .timeline-dot {
    left: 5px;
  }

  .timeline-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .timeline-card {
    padding: 22px;
    border-radius: 16px;
  }

  .social-links {
    flex-direction: column;
  }

  .social-link-btn {
    text-align: center;
  }

  .case-hero-visual {
    height: 200px;
    margin-bottom: 30px;
  }
}

/* ==========================================================================
   REDUCED MOTION COMPLIANCE
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-delay: -1ms !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    background-attachment: initial !important;
    scroll-behavior: auto !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }
  .cursor-dot, .cursor-ring {
    display: none;
  }
}

/* Dynamic Word Loop Switcher */
.dynamic-word-wrap {
  position: relative;
  display: inline-block;
  height: 1.15em;
  vertical-align: top;
  overflow: hidden;
  min-width: 11.5em;
  text-align: left;
}

.dynamic-word {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(30px);
  background: linear-gradient(135deg, #0066cc 20%, #3b82f6 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity 0.8s var(--ease-apple), transform 0.8s var(--ease-apple);
  font-weight: 800;
}

.dynamic-word.active {
  opacity: 1;
  transform: translateY(0);
}

.dynamic-word.exit {
  opacity: 0;
  transform: translateY(-30px);
}

/* Projects Staggered Slide In Reveals */
.projects-grid .project-card.reveal-on-scroll {
  opacity: 0;
  transform: translateY(70px) scale(0.97);
  transition: opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.projects-grid .project-card.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.projects-grid .project-card:nth-child(1) { transition-delay: 0.1s; }
.projects-grid .project-card:nth-child(2) { transition-delay: 0.25s; }
.projects-grid .project-card:nth-child(3) { transition-delay: 0.1s; }
.projects-grid .project-card:nth-child(4) { transition-delay: 0.25s; }

@media (max-width: 992px) {
  .dynamic-word-wrap {
    text-align: center;
    min-width: 100%;
  }
}

/* ==========================================================================
   INTERACTIVE PORTFOLIO CHATBOT WIDGET
   ========================================================================== */

.chatbot-widget {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  font-family: var(--font-sans);
}

/* Chatbot Floating Toggle Button */
.chatbot-toggle {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: 1px solid var(--border-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: transform 0.4s var(--ease-spring), background 0.3s var(--transition-fast), border-color 0.3s var(--transition-fast);
}

.chatbot-toggle:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-lg);
}

.chatbot-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--bg-primary);
  transition: transform 0.4s var(--ease-spring), stroke 0.3s var(--transition-fast);
}

.chatbot-widget.active .chatbot-toggle {
  background: var(--bg-secondary);
  border-color: var(--border-medium);
}

.chatbot-widget.active .chatbot-toggle svg {
  transform: rotate(90deg);
  stroke: var(--text-primary);
}

/* Pulsing Notification Badge */
.chat-badge {
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--accent-blue);
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
  animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 102, 204, 0.4);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(0, 102, 204, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 102, 204, 0);
  }
}

/* Chatbot Panel Slider */
.chatbot-panel {
  position: absolute;
  bottom: 72px;
  right: 0;
  width: 380px;
  height: 520px;
  max-height: calc(100vh - 120px);
  max-width: calc(100vw - 64px);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  box-shadow: var(--shadow-premium);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.92) translateY(20px);
  transform-origin: bottom right;
  transition: opacity 0.35s var(--ease-apple), transform 0.35s var(--ease-apple);
}

.chatbot-panel.open {
  opacity: 1;
  pointer-events: all;
  transform: scale(1) translateY(0);
}

/* Chat Header */
.chat-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: var(--text-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-sans);
}

.chat-header h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.chat-status {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  margin-right: 6px;
  animation: statusPulse 1.8s infinite;
}

@keyframes statusPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  }
  70% {
    box-shadow: 0 0 0 5px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.chat-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s var(--ease-apple), color 0.2s var(--ease-apple);
}

.chat-close-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.chat-close-btn svg {
  width: 20px;
  height: 20px;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
  width: 5px;
}

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

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 4px;
}

/* Chat Bubbles */
.chat-bubble {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  animation: bubbleAppear 0.35s var(--ease-apple) forwards;
  word-wrap: break-word;
}

.chat-bubble p {
  color: inherit;
  margin: 0;
  font-size: inherit;
  line-height: inherit;
}


@keyframes bubbleAppear {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.bot-msg {
  align-self: flex-start;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-light);
}

/* Use readable white color for user bubbles in dark mode */
.user-msg {
  align-self: flex-end;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-bottom-right-radius: 4px;
}

/* Preset Options Chips */
.chat-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 16px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.preset-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s var(--ease-apple);
}

.preset-btn:hover {
  background: var(--accent-blue-glow);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

/* Chat Input Section */
.chat-input-area {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-surface-solid);
}

.chat-input-area input {
  flex: 1;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  padding: 10px 16px;
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  font-family: var(--font-sans);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-input-area input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.chat-send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.chat-send-btn:hover {
  background: var(--accent-blue);
  color: var(--text-on-accent);
  transform: scale(1.05);
}

.chat-send-btn svg {
  width: 16px;
  height: 16px;
}

/* Simulated Typing Dots */
.dot-pulse-chat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 4px 8px;
}

.dot-pulse-chat span {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: dotPulse 1.4s infinite ease-in-out both;
}

.dot-pulse-chat span:nth-child(1) {
  animation-delay: -0.32s;
}

.dot-pulse-chat span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes dotPulse {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.3;
  }
  40% {
    transform: scale(1.1);
    opacity: 1;
  }
}

/* Mobile responsive adjustments */
@media (max-width: 480px) {
  .chatbot-widget {
    bottom: 20px;
    right: 20px;
  }

  .chatbot-panel {
    width: calc(100vw - 40px);
    height: 480px;
    bottom: 68px;
  }
}