/* =========================================
   CSS Variables & Global Styles
   ========================================= */
:root {
    /* Color Palette - Premium Dark Theme */
    --bg-primary: #030712; /* Rich dark primary */
    --bg-secondary: #0b0f19; /* Secondary deep card-bg */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --accent-color: #06b6d4; /* Sleek cyan */
    
    /* Ocean Glow Triple-Gradient */
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 50%, #2dd4bf 100%);
    --card-bg: rgba(17, 24, 39, 0.45);
    --card-border: rgba(255, 255, 255, 0.06);
    
    /* Typography & Layout */
    --font-main: 'Inter', sans-serif;
    --section-padding: 120px 0;
    --max-width: 1100px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

.section-padding {
    padding: var(--section-padding);
}

.section-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 4rem;
    text-align: center;
    letter-spacing: -0.5px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* =========================================
   Custom Scrollbar & Scroll Progress Bar
   ========================================= */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #2563eb, #06b6d4, #2dd4bf);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 1002;
}
.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    transition: width 0.1s ease-out;
}

/* =========================================
   Custom Trailing Cursor
   ========================================= */
.custom-cursor {
    width: 8px;
    height: 8px;
    background-color: #60a5fa;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
    box-shadow: 0 0 10px #60a5fa, 0 0 20px #60a5fa;
}
.custom-cursor-follower {
    width: 32px;
    height: 32px;
    border: 2px solid #8b5cf6;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.08s cubic-bezier(0.25, 1, 0.5, 1), width 0.2s, height 0.2s, border-color 0.2s;
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}
.custom-cursor.hovered {
    width: 12px;
    height: 12px;
    background-color: #d946ef;
    box-shadow: 0 0 15px #d946ef, 0 0 30px #d946ef;
}
.custom-cursor-follower.hovered {
    width: 48px;
    height: 48px;
    border-color: #d946ef;
    background-color: rgba(217, 70, 239, 0.08);
}
@media (max-width: 768px) {
    .custom-cursor, .custom-cursor-follower {
        display: none;
    }
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 2.2rem;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.45);
}

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

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-3px);
}

/* =========================================
   Navigation
   ========================================= */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s ease;
    padding: 24px 0;
}

#navbar.scrolled {
    background: rgba(3, 7, 18, 0.75);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--card-border);
    padding: 16px 0;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span {
    color: #8b5cf6;
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* =========================================
   Hero Section & Typing Effect
   ========================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    overflow: hidden;
}

/* Glowing Background Blobs */
.hero::before {
    content: '';
    position: absolute;
    top: 30%;
    left: 70%;
    transform: translate(-50%, -50%);
    width: 50vw;
    height: 50vw;
    max-width: 500px;
    max-height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(59, 130, 246, 0.05) 50%, rgba(3, 7, 18, 0) 70%);
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

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

.greeting {
    color: #60a5fa;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.name {
    font-size: clamp(2.5rem, 4.5vw, 4.2rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.8rem;
    max-width: 580px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
}

.typing-cursor {
    font-weight: 300;
    color: #a855f7;
    animation: blink-caret 1s infinite;
}
@keyframes blink-caret {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Avatar Showcase */
.avatar-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 320px;
    height: 320px;
    margin: 0 auto;
}
.avatar-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, rgba(59, 130, 246, 0.08) 50%, transparent 70%);
    animation: pulse-glow 4s infinite alternate;
    z-index: 1;
}
.avatar-frame {
    position: absolute;
    width: 90%;
    height: 90%;
    border-radius: 50%;
    border: 2px dashed rgba(139, 92, 246, 0.25);
    animation: rotate-frame 25s linear infinite;
    z-index: 2;
}
.avatar-inner-frame {
    position: absolute;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    border: 2px solid rgba(59, 130, 246, 0.15);
    z-index: 2;
}
.avatar-img-container {
    position: absolute;
    width: 70%;
    height: 70%;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.8) 0%, rgba(11, 15, 25, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), inset 0 0 20px rgba(139, 92, 246, 0.15);
    z-index: 3;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.avatar-wrapper:hover .avatar-img-container {
    transform: scale(1.05);
    border-color: #8b5cf6;
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.35), inset 0 0 35px rgba(139, 92, 246, 0.3);
}
.avatar-svg {
    width: 50%;
    height: 50%;
    fill: none;
    stroke: url(#svg-accent-gradient);
    stroke-width: 1.8;
    filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.5));
    animation: float-svg 4s ease-in-out infinite alternate;
}
@keyframes pulse-glow {
    0% { transform: scale(0.95); opacity: 0.6; }
    100% { transform: scale(1.05); opacity: 1; }
}
@keyframes rotate-frame {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@keyframes float-svg {
    0% { transform: translateY(-6px); }
    100% { transform: translateY(6px); }
}

/* =========================================
   About Section
   ========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 4rem;
    align-items: center;
}

.about-stats-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.about-stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.about-stat-item {
    display: flex;
    align-items: center;
    gap: 1.3rem;
    margin-bottom: 2rem;
}
.about-stat-item:last-child {
    margin-bottom: 0;
}
.about-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.35rem;
    color: #a855f7;
    transition: all 0.3s ease;
}
.about-stats-card:hover .about-stat-icon {
    transform: scale(1.05);
    background: rgba(139, 92, 246, 0.15);
}

.about-stat-info h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.2rem;
}
.about-stat-info p {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1.8rem;
    line-height: 1.75;
}
.about-text p:last-child {
    margin-bottom: 0;
}

/* =========================================
   Skills Section
   ========================================= */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: left;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Customized glowing hover states based on technical domain */
.skill-card.skill-python:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.15);
}
.skill-card.skill-ai:hover {
    border-color: rgba(217, 70, 239, 0.4);
    box-shadow: 0 15px 35px rgba(217, 70, 239, 0.15);
}
.skill-card.skill-data:hover {
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.15);
}
.skill-card.skill-tools:hover {
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 15px 35px rgba(245, 158, 11, 0.15);
}

.skill-icon-box {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.7rem;
    margin-bottom: 1.6rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    color: var(--accent-color);
    transition: all 0.3s ease;
}
.skill-card:hover .skill-icon-box {
    transform: scale(1.1) rotate(5deg);
    color: #fff;
    background: var(--accent-gradient);
    border-color: transparent;
}

.skill-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.skill-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    flex-grow: 1;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.8rem;
}
.skill-tags span {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    transition: all 0.3s ease;
}
.skill-card:hover .skill-tags span {
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.skill-python:hover .skill-tags span { background: rgba(59, 130, 246, 0.08); color: #60a5fa; border-color: rgba(59, 130, 246, 0.15); }
.skill-ai:hover .skill-tags span { background: rgba(217, 70, 239, 0.08); color: #f472b6; border-color: rgba(217, 70, 239, 0.15); }
.skill-data:hover .skill-tags span { background: rgba(16, 185, 129, 0.08); color: #34d399; border-color: rgba(16, 185, 129, 0.15); }
.skill-tools:hover .skill-tags span { background: rgba(245, 158, 11, 0.08); color: #fbbf24; border-color: rgba(245, 158, 11, 0.15); }

/* =========================================
   Process Section
   ========================================= */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding-bottom: 2rem; /* Give room for staggered layout */
}

.process-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: left;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
}

.process-card:hover {
    border-color: rgba(6, 182, 212, 0.4); /* Cyan accent */
    box-shadow: 0 15px 35px rgba(6, 182, 212, 0.15);
    background: rgba(255, 255, 255, 0.04);
}

.process-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.05);
    position: absolute;
    top: -10px;
    right: 10px;
    transition: all 0.4s ease;
}

.process-card:hover .process-number {
    color: rgba(6, 182, 212, 0.15);
    transform: scale(1.1) rotate(5deg);
}

.process-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

@media (min-width: 768px) {
    /* Asymmetrical Staggered Layout */
    .process-card:nth-child(even) {
        transform: translateY(40px);
    }
    .process-card:nth-child(even):hover {
        transform: translateY(30px); /* Move slightly up on hover */
    }
}

/* =========================================
   Projects Section & Filters
   ========================================= */
.filter-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

.project-card.hide {
    display: none;
}
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 5;
}
.project-card:hover::before {
    transform: scaleX(1);
}
.project-card:hover {
    transform: translateY(-8px);
    background: rgba(21, 28, 44, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.project-image-wrapper {
    width: 100%;
    height: 210px;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--card-border);
}
.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card:hover .project-img {
    transform: scale(1.06);
}

.project-content {
    padding: 2.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.project-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    letter-spacing: -0.3px;
}
.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    font-size: 0.95rem;
    line-height: 1.6;
    flex-grow: 1;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}
.tech-stack span {
    font-family: monospace;
    font-size: 0.85rem;
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.08);
    padding: 0.25rem 0.7rem;
    border-radius: 6px;
    border: 1px solid rgba(59, 130, 246, 0.12);
}

.project-link {
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    transition: color 0.3s, transform 0.3s;
}
.project-link:hover {
    color: #a855f7;
    transform: translateX(3px);
}
.project-content > div:last-child {
    margin-top: auto !important;
}

/* =========================================
   Education & Certifications Section
   ========================================= */
.edu-cert-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 100%;
}
.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 8px;
    height: 100%;
    width: 3px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6, #d946ef);
}

.timeline-item {
    position: relative;
    padding-left: 45px;
    margin-bottom: 3.5rem;
}
.timeline-item:last-child {
    margin-bottom: 0;
}
.timeline-dot {
    position: absolute;
    left: 3px;
    top: 4px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3.5px solid #8b5cf6;
    box-shadow: 0 0 12px #8b5cf6;
    z-index: 5;
    transition: all 0.3s ease;
}
.timeline-item:hover .timeline-dot {
    background: #d946ef;
    border-color: #d946ef;
    box-shadow: 0 0 16px #d946ef;
    transform: scale(1.15);
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.2rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.glass-card:hover {
    transform: translateX(4px);
    border-color: rgba(255, 255, 255, 0.1);
}

.timeline-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}
.timeline-content h4 {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 1rem;
}
.timeline-date {
    font-family: monospace;
    font-size: 0.95rem;
    color: #60a5fa;
    margin-bottom: 1rem;
}
.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Certifications Panel */
.certifications-section h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    letter-spacing: -0.3px;
}
.cert-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.cert-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(16px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    gap: 1.2rem;
    align-items: center;
}
.cert-card:hover {
    transform: translateX(6px);
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}
.cert-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(217, 70, 239, 0.08);
    border: 1px solid rgba(217, 70, 239, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    color: #d946ef;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.cert-card:hover .cert-icon {
    transform: scale(1.05);
    background: rgba(217, 70, 239, 0.15);
    color: #f472b6;
}
.cert-info h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.15rem;
}
.cert-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* =========================================
   Contact Section
   ========================================= */
.contact {
    text-align: center;
    padding-bottom: 160px;
    position: relative;
}
.contact::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    width: 40vw;
    height: 40vw;
    max-width: 400px;
    background: radial-gradient(circle, rgba(217, 70, 239, 0.08) 0%, transparent 70%);
    z-index: -1;
}

.contact-subtitle {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 4rem auto;
    font-size: 1.15rem;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3.5rem;
    max-width: 950px;
    margin: 0 auto;
    text-align: left;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.8rem;
    backdrop-filter: blur(16px);
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}
.contact-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.3);
}
.contact-card i {
    font-size: 1.6rem;
    color: #60a5fa;
    margin-bottom: 0.8rem;
}
.contact-card h4 {
    margin-bottom: 0.4rem;
    font-size: 1.15rem;
    font-weight: 700;
}
.contact-card a {
    color: var(--text-secondary);
    transition: color 0.3s;
    font-size: 0.95rem;
}
.contact-card a:hover {
    color: var(--text-primary);
}

.social-links-form {
    display: flex;
    gap: 1.2rem;
    margin-top: 1.5rem;
}
.social-links-form a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    font-size: 1.2rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.social-links-form a:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.35);
}

.contact-form-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.form-group {
    margin-bottom: 1.8rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.05rem;
    border-radius: 10px;
    border: 1px solid var(--card-border);
    background: rgba(3, 7, 18, 0.4);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group textarea {
    resize: vertical;
    min-height: 140px;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 2.5px rgba(139, 92, 246, 0.25);
    background: rgba(3, 7, 18, 0.6);
}
.btn-submit {
    width: 100%;
    font-size: 1.1rem;
    padding: 1.05rem;
}

/* =========================================
   Footer
   ========================================= */
footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: #02050d;
}

/* =========================================
   Animations & Responsive
   ========================================= */
.fade-up {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }
.delay-4 { transition-delay: 0.48s; }
.delay-5 { transition-delay: 0.60s; }
.delay-6 { transition-delay: 0.72s; }
.delay-7 { transition-delay: 0.84s; }
.delay-8 { transition-delay: 0.96s; }
.delay-9 { transition-delay: 1.08s; }
.delay-10 { transition-delay: 1.20s; }

/* Responsive Media Queries */
@media screen and (max-width: 992px) {
    :root {
        --section-padding: 90px 0;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3.5rem;
    }
    .hero-content {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .avatar-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .edu-cert-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .contact-info {
        gap: 1.5rem;
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 75%;
        background: rgba(3, 7, 18, 0.96);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        border-left: 1px solid var(--card-border);
        gap: 2.5rem;
        z-index: 1001;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: block;
        z-index: 1005;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }
    .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 2.8rem;
        margin-bottom: 3rem;
    }
    
    .contact-form-container {
        padding: 2rem;
    }
}

/* =========================================
   Portfolio Upgrades
   ========================================= */

/* Particles Background */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Project Images */
.project-card {
    padding: 0; /* Reset padding to 0 so image hits edges */
    display: flex;
    flex-direction: column;
}
.project-image-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-bottom: 1px solid var(--card-border);
}
.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.project-card:hover .project-img {
    transform: scale(1.05);
}
.project-content {
    padding: 2.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.project-content > div:last-child {
    margin-top: auto !important; /* pushes links to bottom */
}

/* Contact Grid & Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}
.contact-card:hover {
    transform: translateY(-5px);
}
.contact-card i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}
.contact-card h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}
.contact-card a {
    color: var(--text-secondary);
    transition: color 0.3s;
}
.contact-card a:hover {
    color: var(--text-primary);
}

.social-links-form {
    display: flex;
    gap: 1rem;
}
.social-links-form a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}
.social-links-form a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.contact-form-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    background: rgba(10, 15, 28, 0.5);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group textarea {
    resize: vertical;
    min-height: 120px;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}
.btn-submit {
    width: 100%;
    font-size: 1.1rem;
    padding: 1rem;
}

@media screen and (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}