/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #13131a;
    --color-surface: #1a1a24;
    --color-surface-elevated: #22222e;

    --color-primary: #00d4ff;
    --color-primary-dark: #0099cc;
    --color-primary-light: #33ddff;

    --color-accent: #7c3aed;
    --color-accent-light: #a78bfa;

    --color-text: #ffffff;
    --color-text-secondary: #a0a0b8;
    --color-text-muted: #6b6b7f;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    --gradient-surface: linear-gradient(135deg, var(--color-surface), var(--color-surface-elevated));
    --gradient-radial: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.15), transparent 50%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Animated Background
   =================================== */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(ellipse at bottom, #1a1a2e 0%, #0a0a0f 100%);
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.sphere-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.4), transparent);
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.sphere-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.4), transparent);
    bottom: -10%;
    left: -10%;
    animation-delay: -7s;
}

.sphere-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3), transparent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridScroll 20s linear infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(50px, -50px) scale(1.1);
    }
    50% {
        transform: translate(-30px, 50px) scale(0.9);
    }
    75% {
        transform: translate(40px, 30px) scale(1.05);
    }
}

@keyframes gridScroll {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(50px);
    }
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

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

.logo-text {
    color: var(--color-text);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 100px;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero-greeting {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.hero-name {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-text), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-typing {
    font-size: clamp(1.5rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    min-height: 1.2em;
    font-family: var(--font-mono);
}

.hero-typing::after {
    content: '|';
    animation: blink 1s step-end infinite;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: 100px;
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 100px;
    animation: scrollDown 2s ease-in-out infinite;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

/* ===================================
   Section Styles
   =================================== */
.section-padding {
    padding: 8rem 2rem;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-sm);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-subtitle a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

.section-subtitle a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

/* ===================================
   About Section
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-intro {
    font-size: 1.5rem !important;
    color: var(--color-text) !important;
    font-weight: 500;
}

.about-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.badge {
    padding: 0.5rem 1rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-accent-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.about-skills h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.skills-grid {
    display: grid;
    gap: 2rem;
}

.skill-category h4 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    padding: 0.5rem 1rem;
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.skill-tags span:hover {
    border-color: var(--color-primary);
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* ===================================
   Certifications Section
   =================================== */
.certifications {
    background: rgba(255, 255, 255, 0.02);
}

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

.cert-card {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

/* Holographic shimmer for cert cards */
.cert-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(0, 212, 255, 0.1) 40%,
        rgba(124, 58, 237, 0.1) 50%,
        rgba(255, 0, 128, 0.1) 60%,
        transparent 70%
    );
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: transform 0.6s ease;
    pointer-events: none;
    z-index: 1;
}

.cert-card:hover::after {
    transform: translateX(100%) translateY(100%) rotate(45deg);
}

.cert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.cert-card:hover {
    transform: translateY(-12px);
    border-color: var(--color-primary);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 212, 255, 0.2),
        0 16px 32px rgba(0, 212, 255, 0.15),
        0 24px 48px rgba(0, 212, 255, 0.1);
}

.cert-card:hover::before {
    transform: scaleX(1);
}

.cert-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all var(--transition-base);
    position: relative;
    z-index: 2;
}

.cert-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-primary);
}

.cert-card:hover .cert-icon {
    background: var(--gradient-primary);
    transform: rotateY(360deg);
}

.cert-card:hover .cert-icon svg {
    stroke: white;
}

.cert-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    position: relative;
    z-index: 2;
}

.cert-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.cert-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    border-radius: var(--radius-sm);
    color: #ff9800;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 2;
}

/* ===================================
   Experience/Timeline Section
   =================================== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    padding-left: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-bg);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.3);
    z-index: 1;
}

.timeline-content {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-base);
}

.timeline-content:hover {
    transform: translateX(8px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.2);
}

.timeline-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: all var(--transition-base);
}

.timeline-icon svg {
    width: 24px;
    height: 24px;
}

.timeline-icon.telecom {
    background: rgba(52, 211, 153, 0.1);
}

.timeline-icon.telecom svg {
    stroke: #34d399;
}

.timeline-icon.banking {
    background: rgba(251, 191, 36, 0.1);
}

.timeline-icon.banking svg {
    stroke: #fbbf24;
}

.timeline-icon.consulting {
    background: rgba(168, 85, 247, 0.1);
}

.timeline-icon.consulting svg {
    stroke: #a855f7;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline-date {
    display: inline-block;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-content p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-tags span {
    padding: 0.375rem 0.875rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-primary);
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    background: rgba(255, 255, 255, 0.02);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    transform-style: preserve-3d;
}

/* Holographic shimmer overlay */
.project-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(0, 212, 255, 0.1) 40%,
        rgba(124, 58, 237, 0.1) 50%,
        rgba(255, 0, 128, 0.1) 60%,
        transparent 70%
    );
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: transform 0.6s ease;
    pointer-events: none;
    z-index: 1;
}

.project-card:hover::after {
    transform: translateX(100%) translateY(100%) rotate(45deg);
}

/* Live Demo Project Cards */
.project-card.live-demo {
    border: 2px solid rgba(0, 212, 255, 0.3);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03), rgba(124, 58, 237, 0.03));
}

/* Enhanced shimmer for live demo cards */
.project-card.live-demo::after {
    background: linear-gradient(
        45deg,
        transparent 20%,
        rgba(0, 212, 255, 0.2) 35%,
        rgba(16, 185, 129, 0.15) 45%,
        rgba(124, 58, 237, 0.2) 55%,
        rgba(255, 0, 128, 0.15) 65%,
        transparent 80%
    );
}

.project-card.live-demo:hover {
    border-color: rgba(0, 212, 255, 0.6);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 212, 255, 0.3),
        0 16px 32px rgba(0, 212, 255, 0.25),
        0 24px 48px rgba(16, 185, 129, 0.15);
}

.live-demo-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-success);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 10;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    position: relative;
    animation: pulse-dot 2s ease-in-out infinite;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes pulse-ring {
    0% {
        width: 8px;
        height: 8px;
        opacity: 1;
    }
    100% {
        width: 20px;
        height: 20px;
        opacity: 0;
    }
}

.demo-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.btn-demo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-demo::before {
    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 0.5s ease;
}

.btn-demo:hover::before {
    left: 100%;
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.5);
}

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

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-radial);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover {
    transform: translateY(-12px);
    border-color: var(--color-primary);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 212, 255, 0.2),
        0 16px 32px rgba(0, 212, 255, 0.15),
        0 24px 48px rgba(0, 212, 255, 0.1);
}

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

.project-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(124, 58, 237, 0.05));
}

.project-card.all-projects {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 212, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 400px;
}

.all-projects-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.all-projects-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-primary);
}

.project-number {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    font-family: var(--font-mono);
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.project-content {
    position: relative;
    z-index: 2;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech span {
    padding: 0.375rem 0.875rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-accent-light);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.project-link:hover {
    gap: 0.75rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-card {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

/* Holographic shimmer for contact cards */
.contact-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(0, 212, 255, 0.1) 40%,
        rgba(124, 58, 237, 0.1) 50%,
        rgba(255, 0, 128, 0.1) 60%,
        transparent 70%
    );
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: transform 0.6s ease;
    pointer-events: none;
    z-index: 1;
}

.contact-card:hover::after {
    transform: translateX(100%) translateY(100%) rotate(45deg);
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 212, 255, 0.2),
        0 16px 32px rgba(0, 212, 255, 0.15),
        0 24px 48px rgba(0, 212, 255, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-primary);
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
}

.contact-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
}

.contact-link:hover {
    gap: 0.75rem;
}

.contact-text {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.contact-cta {
    grid-column: span 2;
}

.cta-box {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(124, 58, 237, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
}

.cta-box h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-box p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.availability-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 100px;
    color: var(--color-success);
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

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

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-column a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-base);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-tagline {
    font-style: italic;
}

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

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

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

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

@keyframes scrollDown {
    0% {
        opacity: 0;
        transform: translate(-50%, 0);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
}

/* Scroll-triggered fade in animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .project-card.featured {
        grid-column: span 1;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .contact-cta {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right var(--transition-base);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

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

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

    .hero {
        padding: 6rem 1rem 4rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-padding {
        padding: 4rem 1rem;
    }

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

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

    .timeline {
        padding-left: 1rem;
    }

    .timeline-item {
        padding-left: 2rem;
    }

    .timeline-dot {
        left: -1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    /* Live Demo Badge Mobile Styles */
    .live-demo-badge {
        font-size: 0.65rem;
        padding: 0.4rem 0.75rem;
        top: 0.75rem;
        right: 0.75rem;
    }

    .btn-demo {
        width: 100%;
        justify-content: center;
        font-size: 0.9rem;
    }

    .demo-description {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

    .hero-typing {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* ===================================
   Utility Classes
   =================================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hidden {
    display: none;
}