/* ==========================================================================
   KOUSHIK Portfolio Styles
   ========================================================================== */

/* CSS Custom Properties */
:root {
    /* Theme: Classic (Default) */
    --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-animated: linear-gradient(135deg, #667eea, #764ba2, #667eea);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #00d4ff;
    --text-primary: #0f1419;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --border-color: #e2e8f0;
    --glass: rgba(255, 255, 255, 0.25);
    --glass-strong: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(255, 255, 255, 0.18);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.4);
    --shadow-glow-lg: 0 0 40px rgba(102, 126, 234, 0.6);
    --gradient-text: linear-gradient(135deg, #667eea, #764ba2);
    --gradient-vibrant: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Theme: Vibrant */
[data-theme="vibrant"] {
    --primary: linear-gradient(135deg, #ff6b6b 0%, #4ecdc4 100%);
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #45b7d1;
    --gradient-text: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    --shadow-glow: 0 0 20px rgba(255, 107, 107, 0.4);
}

/* Theme: Dark */
[data-theme="dark"] {
    --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #00d4ff;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-light: #64748b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --border-color: #334155;
    --glass: rgba(0, 0, 0, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Typography System */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1.1rem, 2vw, 1.25rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.1rem); }

p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.6;
}

.small {
    font-size: 0.875rem;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

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

/* Focus Styles for Accessibility */
:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Loading Screen */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-darker);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    color: white;
}

.loader-logo {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-progress {
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
    animation: loading 2s ease-in-out;
}

@keyframes loading {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Particles Background */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
    opacity: 0.1;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.1; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.3; }
}

/* Custom Cursor */
.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: transform 0.1s ease;
    opacity: 0;
}

.custom-cursor.active {
    opacity: 1;
}

.custom-cursor.hover {
    transform: scale(2);
}

/* Theme Switcher */
.theme-switcher {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 10px;
    border-radius: 15px;
    border: 1px solid var(--glass-border);
}

.theme-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.3s ease;
    overflow: hidden;
}

.theme-btn.active {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.theme-preview {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.theme-classic {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.theme-vibrant {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
}

.theme-dark {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--primary);
    z-index: 10000;
    transition: width 0.3s ease;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] nav.scrolled {
    background: rgba(15, 23, 42, 0.95);
}

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

.nav__logo {
    font-size: 1.8rem;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav__logo:hover {
    transform: scale(1.05);
}

.nav__links {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

.nav__links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 0.5rem 0;
}

.nav__links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav__links a:hover::before {
    width: 100%;
}

.nav__links a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Mobile Navigation */
.nav__toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    background: none;
    border: none;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
}

.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
}

.hero-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: floatShape 20s ease-in-out infinite;
}

.shape-1 { width: 100px; height: 100px; top: 10%; left: 10%; animation-delay: 0s; }
.shape-2 { width: 150px; height: 150px; top: 60%; right: 10%; animation-delay: 5s; }
.shape-3 { width: 80px; height: 80px; bottom: 20%; left: 20%; animation-delay: 10s; }
.shape-4 { width: 120px; height: 120px; top: 30%; right: 30%; animation-delay: 15s; }

@keyframes floatShape {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.3; }
    25% { transform: translate(30px, -30px) rotate(90deg); opacity: 0.6; }
    50% { transform: translate(-20px, 40px) rotate(180deg); opacity: 0.4; }
    75% { transform: translate(40px, 20px) rotate(270deg); opacity: 0.5; }
}

.hero__content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    color: white;
    z-index: 1;
    position: relative;
}

.hero h1 {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 900;
    margin-bottom: 2rem;
    letter-spacing: -4px;
    position: relative;
}

.hero h1::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.5) 50%, transparent 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.hero h2 {
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0;
    animation: slideUpFade 1.5s ease 0.5s both;
    font-family: 'JetBrains Mono', monospace;
    min-height: 3.5rem;
}

.typewriter::after {
    content: '|';
    color: var(--accent-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: slideUpFade 1.5s ease 1s both;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: slideUpFade 1.5s ease 1.5s both;
}

.button {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s var(--transition-smooth);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.button:hover::before {
    left: 100%;
}

.button:hover::after {
    width: 300px;
    height: 300px;
    opacity: 0;
}

.button:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(255, 255, 255, 0.5);
}

.button:active {
    transform: translateY(-2px) scale(0.98);
}

.button-primary {
    background: var(--accent-color);
    border: none;
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3);
}

.button-primary:hover {
    background: linear-gradient(135deg, #00d4ff, #00b8e6);
    box-shadow: var(--shadow-glow-lg);
    transform: translateY(-5px) scale(1.05);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    animation: bounce 2s infinite;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Sections */
section {
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

section h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 4rem;
    color: var(--text-primary);
    position: relative;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

section h2.visible {
    opacity: 1;
    transform: translateY(0);
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

/* Skills Section */
.skills {
    background: var(--bg-secondary);
    position: relative;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.skills__list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.skill-item {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
    transition: all 0.5s var(--transition-smooth);
    opacity: 0;
    transform: translateY(50px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.skill-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s var(--transition-smooth);
}

.skill-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(102, 126, 234, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.skill-item:hover::before {
    transform: scaleX(1);
}

.skill-item:hover::after {
    opacity: 1;
}

.skill-item:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
    background: var(--glass-strong);
    border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .skill-item {
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .skill-item:hover {
    background: rgba(30, 41, 59, 0.95);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.skill-item i {
    font-size: 4rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.skill-item:hover i {
    transform: scale(1.1) rotateY(360deg);
}

.skill-item h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.skill-item p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Skill Progress Bars */
.skill-progress {
    position: relative;
    background: var(--bg-tertiary);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-bar-skill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    width: 0;
    transition: width 2s ease-in-out;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    font-size: 0.8rem;
    color: white;
    font-weight: 600;
}

.skill-item.visible .progress-bar-skill {
    animation: fillProgress 2s ease-in-out forwards;
}

@keyframes fillProgress {
    from { width: 0; }
}

.progress-bar-skill[data-progress="95"] { width: 95%; }
.progress-bar-skill[data-progress="88"] { width: 88%; }
.progress-bar-skill[data-progress="92"] { width: 92%; }
.progress-bar-skill[data-progress="85"] { width: 85%; }
.progress-bar-skill[data-progress="90"] { width: 90%; }
.progress-bar-skill[data-progress="83"] { width: 83%; }

/* Projects Section */
.projects {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

[data-theme="dark"] .projects {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 3rem;
}

.project-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    position: relative;
    transition: all 0.6s var(--transition-smooth);
    opacity: 0;
    transform: translateY(50px) rotateX(10deg);
    cursor: pointer;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0) rotateX(0);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
    pointer-events: none;
}

.project-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: scale(0);
    pointer-events: none;
}

.project-card:hover::before {
    opacity: 0.05;
}

.project-card:hover::after {
    opacity: 1;
    transform: scale(1);
}

.project-card:hover {
    transform: translateY(-20px) rotateY(3deg) scale(1.02);
    box-shadow: 0 30px 80px rgba(102, 126, 234, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
}

.project-card__image {
    height: 250px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.project-card__image::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s;
}

.project-card:hover .project-card__image::after {
    left: 100%;
}

.project-card__content {
    padding: 2.5rem;
    position: relative;
    z-index: 2;
}

.project-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tech-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-card__links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.project-card__links a,
.project-details-btn {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: rgba(102, 126, 234, 0.1);
    border: none;
    cursor: pointer;
}

.project-card__links a:hover,
.project-details-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* About Section */
.about {
    background: var(--bg-primary);
    position: relative;
}

.about__content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 6rem;
    align-items: center;
}

.about__image-container {
    position: relative;
}

.about__image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 25px;
    box-shadow: var(--shadow-xl);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateX(-50px);
}

.about__image.visible {
    opacity: 1;
    transform: translateX(0);
}

.about__image-container::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    background: var(--primary);
    border-radius: 25px;
    z-index: -1;
    opacity: 0.3;
}

.about__text {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.about__text.visible {
    opacity: 1;
    transform: translateX(0);
}

.about__text p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.about__text p:first-child {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Testimonials Section */
.testimonials {
    background: var(--bg-secondary);
    position: relative;
}

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

.testimonial-track {
    overflow: hidden;
    border-radius: 20px;
}

.testimonial-slide {
    display: none;
    padding: 3rem;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    text-align: center;
    border-radius: 20px;
}

.testimonial-slide.active {
    display: block;
    animation: fadeInUp 0.6s ease;
}

.testimonial-content p {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 1rem;
    pointer-events: none;
}

.testimonial-prev,
.testimonial-next {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background: var(--secondary-color);
    transform: scale(1.1);
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-light);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Blog Section */
.blog {
    background: var(--bg-dark);
    color: white;
}

.blog h2 {
    color: white;
}

.blog-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.blog-search {
    padding: 1rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1rem;
    min-width: 300px;
    transition: all 0.3s ease;
}

.blog-search:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.blog-search::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.blog-filter {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.7rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    background: transparent;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.blog-post {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(50px);
}

.blog-post.visible {
    opacity: 1;
    transform: translateY(0);
}

.blog-post:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.blog-post__header {
    height: 200px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.blog-post__content {
    padding: 2.5rem;
}

.blog-post h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: white;
    font-weight: 700;
}

.blog-post__date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
}

.blog-post__excerpt {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.blog-post__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.blog-tag {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.read-more-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    margin-top: 1rem;
}

.read-more-btn:hover {
    background: #00b8e6;
    transform: translateY(-2px);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    position: relative;
}

.contact h2 {
    color: white;
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 2rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    color: var(--accent-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

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

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-dark);
    color: white;
}

.error-message {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: var(--error-color);
}

.form-group.error .error-message {
    display: block;
}

/* Newsletter Section */
.newsletter {
    background: var(--bg-secondary);
    padding: 4rem 0;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-content h3 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.newsletter-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    background: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

[data-theme="dark"] .newsletter-form input {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.newsletter-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Footer Section */
footer {
    background: var(--bg-darker);
    color: white;
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

footer a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: rgba(0, 212, 255, 0.1);
}

footer a:hover {
    background: var(--accent-color);
    color: var(--bg-darker);
    transform: translateY(-2px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 20px;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    margin: 2rem;
    animation: slideUp 0.3s ease;
}

[data-theme="dark"] .modal-content {
    background: var(--bg-secondary);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--error-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #dc2626;
    transform: scale(1.1);
}

.modal-body {
    padding: 3rem;
}

/* Success Message */
.success-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 10001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.success-message.show {
    transform: translateX(0);
}

/* Animations */
@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

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

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

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

.stagger-animation {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-animation.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 968px) {
    .nav__toggle {
        display: flex;
        z-index: 1001;
    }

    .nav__links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s var(--transition-smooth);
        z-index: 1000;
    }

    .nav__links.active {
        opacity: 1;
        visibility: visible;
    }

    .nav__links li {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

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

    .nav__links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav__links.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav__links.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav__links.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav__links.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav__links.active li:nth-child(6) { transition-delay: 0.35s; }

    .nav__links a {
        color: white;
        font-size: 1.5rem;
        font-weight: 600;
        padding: 1rem 2rem;
    }

    .theme-switcher {
        right: 10px;
        padding: 8px;
    }

    .theme-btn {
        width: 35px;
        height: 35px;
    }

    .about__content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .about__image {
        max-width: 350px;
        margin: 0 auto;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .blog-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .blog-search {
        min-width: auto;
    }

    .blog-filter {
        justify-content: center;
    }

    .testimonial-nav {
        display: none;
    }

    .newsletter-form {
        flex-direction: column;
        gap: 1rem;
    }

    .footer__content {
        flex-direction: column;
        gap: 1rem;
    }

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

    section {
        padding: 5rem 0;
    }

    section h2 {
        font-size: 2.5rem;
    }

    .skills__list {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .projects__grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .blog-posts {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .modal-content {
        margin: 1rem;
        max-height: 90vh;
    }

    .modal-body {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav__container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 3rem;
        letter-spacing: -2px;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .button {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    section h2 {
        font-size: 2rem;
    }

    .skill-item {
        padding: 2rem 1.5rem;
    }

    .project-card__content {
        padding: 2rem;
    }

    .blog-post__content {
        padding: 2rem;
    }

    .success-message {
        top: 10px;
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }

    .success-message.show {
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .loader,
    .particles,
    .custom-cursor,
    .theme-switcher,
    .progress-bar,
    nav,
    .scroll-indicator,
    .floating-shape,
    .modal,
    .success-message {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    section {
        padding: 2rem 0;
        page-break-inside: avoid;
    }

    .hero {
        background: none;
        color: black;
        min-height: auto;
        padding: 2rem 0;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --bg-primary: #ffffff;
        --bg-secondary: #f0f0f0;
        --border-color: #000000;
    }
}

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

    .hero h1::before {
        animation: none;
    }

    .typewriter::after {
        animation: none;
    }

    .floating-shape {
        animation: none;
    }

    .particle {
        animation: none;
    }
}

/* ============================================================================
   ADVANCED ENHANCEMENTS - Modern Visual Effects
   ============================================================================ */

/* Animated Gradient Backgrounds */
@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.hero {
    background: var(--primary-animated);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

/* Enhanced Card Tilt Effect */
@keyframes cardTilt {
    0%, 100% { transform: perspective(1000px) rotateY(0deg); }
    25% { transform: perspective(1000px) rotateY(2deg); }
    75% { transform: perspective(1000px) rotateY(-2deg); }
}

/* Magnetic Button Effect (will be enhanced with JS) */
.button-magnetic {
    transition: transform 0.3s var(--transition-smooth);
}

/* Ripple Effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple-effect:active::before {
    width: 300px;
    height: 300px;
    opacity: 0;
}

/* Smooth Reveal on Scroll */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

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

/* Pulsing Glow Effect */
@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.8);
    }
}

.pulse-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

/* Text Gradient Animation */
@keyframes textGradient {
    0%, 100% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
}

.animated-gradient-text {
    background: var(--gradient-vibrant);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGradient 3s ease infinite;
}

/* Enhanced Navbar Blur */
nav {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

/* Morphing Background Shapes */
@keyframes morphShape {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
}

.floating-shape {
    animation: floatShape 20s ease-in-out infinite, morphShape 8s ease-in-out infinite;
}

/* Glass Card Enhancement */
.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Smooth Page Transitions */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Enhanced Focus Styles for Better Accessibility */
:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
    border-radius: 4px;
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Improved Scroll Animations */
@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Advanced Hover Effects for Links */
nav a,
.footer-links a {
    position: relative;
}

nav a::after {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary-color);
}

/* Enhanced Modal Animations */
.modal.active {
    animation: fadeIn 0.3s ease;
}

.modal-content {
    animation: scaleIn 0.4s var(--transition-bounce);
}

/* Shimmer Loading Effect */
@keyframes shimmerLoad {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    background-size: 1000px 100%;
    animation: shimmerLoad 2s infinite;
}

/* Staggered Animation Enhancement */
.stagger-animation:nth-child(1) { transition-delay: 0.1s; }
.stagger-animation:nth-child(2) { transition-delay: 0.2s; }
.stagger-animation:nth-child(3) { transition-delay: 0.3s; }
.stagger-animation:nth-child(4) { transition-delay: 0.4s; }
.stagger-animation:nth-child(5) { transition-delay: 0.5s; }
.stagger-animation:nth-child(6) { transition-delay: 0.6s; }

/* Floating Animation for Icons */
@keyframes floatIcon {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.skill-item i:hover {
    animation: floatIcon 1s ease-in-out infinite;
}

/* Enhanced Tech Tags */
.tech-tag {
    transition: all 0.3s var(--transition-smooth);
    cursor: default;
}

.tech-tag:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Gradient Border Animation */
@keyframes rotateBorder {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.animated-border {
    position: relative;
}

.animated-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-vibrant);
    border-radius: inherit;
    z-index: -1;
    animation: rotateBorder 3s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.animated-border:hover::before {
    opacity: 1;
}