:root {
    --bg-main: #050505;
    --bg-secondary: #0a0a0a;
    --border-color: #1f1f1f;
    --border-hover: #333333;
    --text-primary: #e5e5e5;
    --text-secondary: #888888;
    --neon-blue: #00f0ff;
    --neon-purple: #b026ff;
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

/* Dotted Tech Grid Background */
.cyber-grid {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
    z-index: -1;
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

.mono-accent {
    font-family: var(--font-mono);
    color: var(--neon-blue);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.neon-text {
    color: var(--neon-purple);
    text-shadow: 0 0 10px rgba(176, 38, 255, 0.5);
}

/* Header & Nav */
.cyber-header {
    position: fixed;
    top: 0; width: 100%;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.2rem 4rem;
}

.logo {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.logo-code {
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 2px;
    filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.3));
    transition: all 0.3s ease;
}

.logo:hover .logo-code {
    filter: drop-shadow(0 0 12px rgba(176, 38, 255, 0.6));
    transform: scale(1.05);
}

.nav-links {
    flex: 2;
    justify-content: center;
    display: flex;
    gap: 2rem;
    list-style: none;
}

.social-links {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    position: relative;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--neon-blue);
}

.nav-links a::before {
    content: attr(data-text);
    position: absolute;
    color: var(--neon-blue);
    top: 0; left: 0;
    width: 0%;
    overflow: hidden;
    transition: width 0.3s ease;
    white-space: nowrap;
}

.nav-links a:hover::before {
    width: 100%;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.2rem;
    font-size: 1.1rem;
    transition: color 0.3s, text-shadow 0.3s;
}

.social-links a:hover {
    color: var(--neon-purple);
    text-shadow: 0 0 8px var(--neon-purple);
}

/* Sections */
.section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title::after {
    content: '';
    flex-grow: 1;
    height: 1px;
    background: var(--border-color);
}

/* Hero */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.glitch-text {
    font-size: 4rem;
    line-height: 1.1;
    margin: 1rem 0;
    color: var(--text-primary);
    position: relative;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.bio-container p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.cyber-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-family: var(--font-mono);
    color: var(--neon-blue);
    text-decoration: none;
    border: 1px solid var(--neon-blue);
    background: transparent;
    position: relative;
    transition: all 0.3s;
    overflow: hidden;
}

.cyber-btn:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.hero-image {
    flex: 0.8;
    display: flex;
    justify-content: center;
}

.avatar-frame {
    position: relative;
    width: 320px;
    height: 320px;
}

.avatar-frame::before {
    content: '';
    position: absolute;
    top: 15px; left: 15px;
    width: 100%; height: 100%;
    border: 2px solid var(--neon-blue);
    z-index: -1;
    transition: transform 0.3s ease;
}

.avatar-frame:hover::before {
    transform: translate(-10px, -10px);
}

.avatar-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(1.2);
    transition: filter 0.5s ease;
}

.avatar-frame:hover img {
    filter: grayscale(0%) contrast(1);
}

.float-slow {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Cards shared */
.cyber-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2rem;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}

.cyber-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: var(--neon-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.cyber-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

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

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skills-icon-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.skill-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    transition: all 0.3s;
    width: 70px;
}

.skill-icon-item i {
    font-size: 2.5rem;
    color: var(--neon-blue);
    transition: all 0.3s;
}

.skill-icon-item span {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-align: center;
    opacity: 0.8;
}

.skill-icon-item:hover i {
    color: var(--neon-purple);
    transform: translateY(-5px);
    text-shadow: 0 0 10px rgba(176, 38, 255, 0.5);
}

.skill-icon-item:hover span {
    color: var(--text-primary);
    opacity: 1;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    background: transparent;
    border: none;
    padding: 0;
}

.project-card:hover {
    transform: none;
    box-shadow: none;
}

.project-card::before { display: none; }

.project-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border: 1px solid var(--border-color);
    filter: grayscale(80%);
    transition: all 0.5s ease;
}

.project-card:hover .project-image {
    filter: grayscale(0%);
    border-color: var(--neon-purple);
}

.project-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-desc {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    position: relative;
    z-index: 2;
    margin-left: -50px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--neon-blue);
}

.project-card.reverse {
    grid-template-columns: 1fr 1fr;
}

.project-card.reverse .project-image-wrapper {
    order: 2;
}

.project-card.reverse .project-content {
    order: 1;
}

.project-card.reverse .project-desc {
    margin-left: 0;
    margin-right: -50px;
}

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

.cert-gallery-card {
    padding: 0;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.cert-preview {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #111;
    border-bottom: 1px solid var(--border-color);
}

.cert-preview-media {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none; /* Prevents scrolling inside PDF */
}

.cert-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(176, 38, 255, 0.2);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.cert-gallery-card:hover .cert-overlay {
    opacity: 1;
}

.cert-info {
    padding: 1.5rem;
}

.cert-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--neon-blue);
}

.cert-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    margin-bottom: 0.3rem;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 2rem;
}

.contact-form-container {
    padding: 2.5rem;
}

.contact-socials-container {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.contact-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.text-center {
    text-align: center;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.cyber-input {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
    width: 100%;
}

.cyber-input:focus {
    outline: none;
    border-color: var(--neon-blue);
    background: rgba(0, 240, 255, 0.05);
}

.form-footer-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.submit-btn {
    align-self: flex-start;
    cursor: pointer;
}

.contact-socials {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--neon-purple);
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s;
}

.social-icon:hover {
    border-color: var(--neon-purple);
    background: rgba(176, 38, 255, 0.1);
    box-shadow: 0 0 15px rgba(176, 38, 255, 0.3);
    transform: translateY(-3px);
}

/* Footer */
.cyber-footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 4rem;
}

/* --- Responsive Design --- */

/* Tablets / iPads (max-width: 1024px) */
@media (max-width: 1024px) {
    .hero {
        gap: 2rem;
    }
    .glitch-text {
        font-size: 3rem;
    }
    .avatar-frame {
        width: 280px;
        height: 280px;
    }
    .project-desc {
        margin-left: -20px;
    }
    .project-card.reverse .project-desc {
        margin-right: -20px;
    }
}

/* Mobile & Smaller Tablets (max-width: 768px) */
@media (max-width: 768px) {
    nav {
        flex-wrap: wrap;
        padding: 1rem;
        gap: 1rem;
        justify-content: center;
    }
    .logo, .social-links {
        flex: none;
    }
    .nav-links {
        flex: none;
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }
    .social-links {
        order: 2;
        justify-content: center;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 10rem;
    }
    .bio-container p {
        margin: 0 auto 2.5rem;
    }
    
    .glitch-text {
        font-size: 2.5rem;
    }
    .subtitle {
        font-size: 1.2rem;
    }
    .avatar-frame {
        width: 250px;
        height: 250px;
        margin: 0 auto;
    }
    
    .project-card, .project-card.reverse {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .project-desc, .project-card.reverse .project-desc {
        margin-left: 0;
        margin-right: 0;
        margin-top: -20px;
        text-align: left;
    }
    .project-card.reverse .project-image-wrapper {
        order: unset;
    }
    .project-card.reverse .project-content {
        order: unset;
    }
    
    .skills-grid, .certificates-grid, .contact-grid {
        grid-template-columns: 1fr; 
    }
    
    .section {
        padding: 6rem 1.5rem 2rem;
    }
}

/* Small Phones (max-width: 480px) */
@media (max-width: 480px) {
    .glitch-text {
        font-size: 2rem;
    }
    .avatar-frame {
        width: 200px;
        height: 200px;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .nav-links {
        gap: 0.5rem;
        font-size: 0.8rem;
    }
    .social-links a {
        margin-left: 0.5rem;
    }
    .contact-socials {
        gap: 0.5rem;
    }
    .social-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}