/* Modern Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #121217;
    --bg-glass: rgba(18, 18, 23, 0.7);
    --bg-glass-hover: rgba(28, 28, 35, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-start: #4facfe;
    --accent-end: #00f2fe;
    --accent-purple: #8a2be2;
    --gradient-primary: linear-gradient(135deg, var(--accent-start) 0%, var(--accent-end) 100%);
    --gradient-purple: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
    --glow-shadow: 0 0 20px rgba(0, 242, 254, 0.25);
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    --container-max-width: 1200px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Glows */
.ambient-glows {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.glow-1 {
    position: absolute;
    top: 15%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, transparent 70%);
    filter: blur(80px);
    animation: floating-glow 20s infinite alternate ease-in-out;
}

.glow-2 {
    position: absolute;
    top: 55%;
    left: -15%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.12) 0%, transparent 70%);
    filter: blur(100px);
    animation: floating-glow 25s infinite alternate-reverse ease-in-out;
}

.glow-3 {
    position: absolute;
    top: 85%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, transparent 70%);
    filter: blur(60px);
}

@keyframes floating-glow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, -50px) scale(1.1); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: #1e1e24;
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: #2b2b35;
}

/* Typography & Layout Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p {
    color: var(--text-secondary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0 4rem;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 0.5rem 0;
    background: rgba(10, 10, 12, 0.85);
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition-smooth);
}

header.scrolled .nav-container {
    height: 60px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient-primary);
    box-shadow: var(--glow-shadow);
}

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

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-btn {
    background: var(--gradient-primary);
    color: #000;
    font-weight: 600;
    padding: 0.6rem 1.3rem;
    border-radius: 50px;
    box-shadow: var(--glow-shadow);
    transition: var(--transition-smooth);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(0, 242, 254, 0.4);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition-smooth);
}

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

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

.hero-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.2);
    border-radius: 50px;
    color: var(--accent-end);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(79, 172, 254, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(79, 172, 254, 0); }
    100% { box-shadow: 0 0 0 0 rgba(79, 172, 254, 0); }
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 500;
    height: 2.7rem; /* Prevents layout shift from typing animation */
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 1.8rem;
    background-color: var(--accent-end);
    margin-left: 5px;
    animation: blink 0.8s infinite;
    vertical-align: middle;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #000;
    box-shadow: var(--glow-shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 242, 254, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

/* Hero Visual Graphic */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-canvas-container {
    width: 380px;
    height: 380px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.canvas-sphere {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, transparent 60%);
    z-index: 1;
}

.canvas-ring {
    position: absolute;
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.canvas-ring-1 {
    width: 320px;
    height: 320px;
    border-color: rgba(79, 172, 254, 0.2);
}

.canvas-ring-2 {
    width: 260px;
    height: 260px;
    border-color: rgba(138, 43, 226, 0.15);
    animation-direction: reverse;
    animation-duration: 15s;
}

.canvas-ring-3 {
    width: 200px;
    height: 200px;
    border-color: rgba(0, 242, 254, 0.25);
    animation-duration: 10s;
}

.canvas-core {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: var(--gradient-primary);
    position: relative;
    z-index: 2;
    box-shadow: 0 0 60px rgba(0, 242, 254, 0.5);
    animation: heartbeat 6s ease-in-out infinite alternate;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes heartbeat {
    0% { transform: scale(1); filter: brightness(1); }
    100% { transform: scale(1.08); filter: brightness(1.15); }
}

/* About / Expertise Section */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.expertise-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-smooth);
}

.expertise-card:hover {
    transform: translateY(-5px);
    background: var(--bg-glass-hover);
    border-color: var(--border-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.expertise-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-end);
    margin-bottom: 1.5rem;
    transition: var(--transition-smooth);
}

.expertise-card:hover .expertise-icon {
    background: rgba(0, 242, 254, 0.1);
    border-color: rgba(0, 242, 254, 0.2);
    color: var(--accent-end);
    transform: scale(1.05);
}

.expertise-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.expertise-card p {
    font-size: 0.95rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.project-visual {
    height: 220px;
    width: 100%;
    position: relative;
    overflow: hidden;
    background: #181820;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Unique Abstract CSS graphics for projects instead of blank placeholders */
.project-graphic-1 {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    position: relative;
    overflow: hidden;
}
.graphic-circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
}
.graphic-c1 { width: 200px; height: 200px; top: -50px; right: -50px; }
.graphic-c2 { width: 150px; height: 150px; bottom: -30px; left: -30px; }
.graphic-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.07;
    background-image: linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.2) 1px, transparent 1px);
    background-size: 20px 20px;
}
.graphic-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.node-line {
    position: absolute;
    width: 60%;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.3;
    transform: rotate(-30deg);
}

.project-graphic-2 {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #020617 0%, #172554 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.graphic-wave {
    width: 80%;
    height: 100px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.graphic-wave-bar {
    width: 8px;
    background: var(--gradient-primary);
    border-radius: 4px;
    animation: wave-motion 1.5s ease-in-out infinite alternate;
}
.graphic-wave-bar:nth-child(2) { height: 60%; animation-delay: 0.2s; }
.graphic-wave-bar:nth-child(3) { height: 85%; animation-delay: 0.4s; }
.graphic-wave-bar:nth-child(4) { height: 40%; animation-delay: 0.1s; }
.graphic-wave-bar:nth-child(5) { height: 70%; animation-delay: 0.6s; }
.graphic-wave-bar:nth-child(6) { height: 50%; animation-delay: 0.3s; }

@keyframes wave-motion {
    0% { transform: scaleY(0.7); }
    100% { transform: scaleY(1.3); }
}

.project-graphic-3 {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #090514 0%, #2e1065 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.graphic-rings {
    width: 140px;
    height: 140px;
    position: relative;
}
.graphic-ring-item {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--accent-start);
    border-bottom-color: var(--accent-end);
    border-radius: 50%;
    animation: rotate-graphic 4s linear infinite;
}
.graphic-ring-item:nth-child(2) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    border-top-color: var(--accent-purple);
    border-bottom-color: var(--accent-start);
    animation-duration: 2.5s;
    animation-direction: reverse;
}

@keyframes rotate-graphic {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.project-info {
    padding: 2rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.project-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
}

.project-card:hover .project-tag {
    border-color: rgba(255, 255, 255, 0.12);
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}

.project-desc {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-end);
}

.project-link svg {
    transition: var(--transition-fast);
}

.project-card:hover .project-link svg {
    transform: translateX(4px);
}

/* Skills & Technologies */
.skills-container {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3.5rem;
}

.skills-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.skills-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.skills-info p {
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.skills-categories {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-category h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.skill-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-badge {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.skill-badge:hover {
    background: rgba(0, 242, 254, 0.05);
    border-color: rgba(0, 242, 254, 0.25);
    color: var(--accent-end);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 242, 254, 0.08);
}

.skill-badge svg {
    width: 16px;
    height: 16px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
}

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

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-end);
}

.contact-text h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-text p {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form-container {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.9rem 1.2rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--accent-end);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    font-size: 0.95rem;
    margin-top: 0.5rem;
    display: none;
}
.form-status.success {
    display: block;
    color: #10b981;
}
.form-status.error {
    display: block;
    color: #ef4444;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    background-color: #08080a;
}

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

.footer-socials {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.social-link:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

/* Page Scroll Fade-In Effects (via JS Observer) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto 3rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .skills-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 5rem 0 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
        height: 2.2rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        padding: 3rem 0;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
        z-index: 99;
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .contact-form-container {
        padding: 2rem;
    }
}