/* Custom Properties & Reset */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1624;
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #8b5cf6; /* Violet */
    --accent-glow: rgba(99, 102, 241, 0.15);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(15, 22, 36, 0.7);
    --card-border: rgba(99, 102, 241, 0.15);
    --card-glow: rgba(99, 102, 241, 0.05);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

li {
    list-style: none;
}

/* Typography Utility */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Base Layout Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

/* Section Headers */
.section-header {
    margin-bottom: 60px;
    text-align: left;
}

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

.section-tag {
    display: inline-block;
    color: var(--accent-primary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    line-height: 1.2;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-block {
    width: 100%;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(10, 14, 23, 0.75);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav-btn {
    background-color: var(--accent-glow);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
}

.nav-btn:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #fff;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 22px;
    cursor: pointer;
}

/* Mobile Nav Menu Drawer */
.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    flex-direction: column;
    gap: 20px;
    z-index: 99;
}

.mobile-nav.active {
    display: flex;
}

.mobile-link {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary);
}

.mobile-btn {
    background-color: var(--accent-primary);
    color: #fff;
    padding: 12px;
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background-color: var(--bg-primary);
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(99, 102, 241, 0.12);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: rgba(139, 92, 246, 0.08);
    bottom: -150px;
    left: -150px;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 45px;
    align-items: center;
    width: 100%;
}

.hero-content {
    max-width: 700px;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.hero-image-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, rgba(139, 92, 246, 0.08) 60%, transparent 100%);
    border-radius: 50%;
    filter: blur(25px);
    z-index: 1;
}

.hero-image {
    position: relative;
    width: 280px;
    height: 280px;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    border: 2px solid rgba(99, 102, 241, 0.25);
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transition: var(--transition-smooth);
}

.hero-image:hover {
    transform: scale(1.03) translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 25px 50px rgba(99, 102, 241, 0.25);
}

.badge {
    display: inline-block;
    background-color: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--accent-primary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 58px;
    line-height: 1.1;
    margin-bottom: 16px;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 26px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-socials {
    display: flex;
    gap: 24px;
}

.hero-socials a {
    color: var(--text-secondary);
    font-size: 20px;
}

.hero-socials a:hover {
    color: var(--text-primary);
    transform: scale(1.15);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.about-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.about-card:hover {
    border-color: var(--card-border);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--card-glow);
}

.card-icon {
    font-size: 32px;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.about-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.about-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Experience / Timeline Section */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 60px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 13px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 4px var(--card-border);
}

.timeline-date {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.timeline-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
}

.role-title {
    font-size: 22px;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.company-name {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.badge-inline {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    margin-left: 8px;
    border: 1px solid var(--border-color);
}

.timeline-bullets {
    color: var(--text-secondary);
    font-size: 15px;
}

.timeline-bullets li {
    position: relative;
    margin-bottom: 10px;
    padding-left: 20px;
}

.timeline-bullets li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.education-text {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Projects Section */
.project-filters {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

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

.project-card:hover {
    border-color: var(--card-border);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--card-glow);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.project-tag-sm {
    background-color: rgba(99, 102, 241, 0.08);
    color: var(--accent-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.project-date {
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

.project-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.project-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
    flex-grow: 1;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-badges span {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid var(--border-color);
}

.project-link {
    font-size: 14px;
    color: var(--accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

/* Skills Section */
.skills-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.skills-category {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
}

.skills-category h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.skills-badges-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-badge {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.skill-badge:hover {
    border-color: var(--accent-primary);
    background-color: var(--accent-glow);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.skill-badge i {
    color: var(--accent-primary);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 60px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 60px;
    border-radius: 16px;
}

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

.contact-text {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 16px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: center;
}

.contact-item i {
    font-size: 24px;
    color: var(--accent-primary);
    background-color: var(--accent-glow);
    width: 50px;
    height: 50px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item h4 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

.contact-item a, .contact-item span {
    font-size: 16px;
    color: var(--text-primary);
}

.contact-form-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.form-status {
    font-size: 14px;
    font-weight: 500;
}

.form-status.success {
    color: #10b981; /* Green */
}

.form-status.error {
    color: #ef4444; /* Red */
}

/* Footer */
.footer-bg {
    background-color: #06090f;
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-container p {
    color: var(--text-muted);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 18px;
}

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

/* Mobile Responsiveness */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    .hero-content {
        margin: 0 auto;
        max-width: 650px;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-socials {
        justify-content: center;
    }
    .hero-title {
        font-size: 46px;
    }
    .contact-container {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .hero {
        padding-top: 120px;
    }
    .hero-title {
        font-size: 38px;
    }
    .hero-subtitle {
        font-size: 20px;
    }
    .hero-actions {
        flex-direction: column;
    }
    .contact-container {
        gap: 40px;
    }
}