/* =========================================
   CSS Variables & Tokens (Dark Modern Theme)
   ========================================= */
:root {
    /* Colors */
    --bg-main: #0a0a0f;
    --bg-alt: #111118;
    --card-bg: rgba(22, 22, 32, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-1: #6366f1; /* Indigo */
    --accent-2: #a855f7; /* Purple */
    --accent-hover: #4f46e5;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.4), rgba(168, 85, 247, 0.4));

    /* Typography */
    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Spacing & Layout */
    --container-max-width: 1100px;
    --padding-section: 3rem 2rem;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   Reset & Base Styles
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for sticky nav */
}

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

ul {
    list-style: none;
}

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

img {
    max-width: 100%;
    display: block;
}

/* Typography elements */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

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

/* Containers */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

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

.section.bg-alt {
    background-color: var(--bg-alt);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    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;
}

.section-subtitle {
    margin-top: 1.5rem;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* =========================================
   UI Components (Buttons, Cards)
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* =========================================
   Navigation
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav-links .nav-btn {
    color: #fff; /* Override secondary text for button */
    padding: 0.5rem 1.25rem;
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 4rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

/* Subtle background glow */
.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--gradient-glow);
    filter: blur(150px);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.5;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    width: 100%;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.greeting {
    color: var(--accent-1);
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.name {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.role {
    font-size: 2.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.bio {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-bg-effect {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    filter: blur(20px);
    opacity: 0.6;
    animation: pulse 4s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.05); opacity: 0.8; }
}

.hero-image {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    object-fit: cover;
    z-index: 1;
    border: 4px solid var(--bg-main);
    background-color: var(--bg-alt);
}

/* =========================================
   About Section
   ========================================= */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    margin-top: 3rem;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-1);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: var(--transition-normal);
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.skill-list li {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.skill-list li::before {
    content: '▹';
    color: var(--accent-1);
    margin-right: 10px;
    font-size: 1.2rem;
}

/* =========================================
   Projects Section
   ========================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-desc {
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

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

.tag {
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-1);
    border-radius: 20px;
}

.project-link {
    font-weight: 500;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
}

.project-link:hover {
    color: var(--accent-1);
}

/* =========================================
   Experience Timeline
   ========================================= */
.timeline {
    margin-top: 3rem;
    position: relative;
    max-width: 800px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 11px;
    height: 100%;
    width: 2px;
    background: var(--card-border);
}

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

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

.timeline-dot {
    position: absolute;
    left: 0;
    top: 5px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-alt);
    border: 2px solid var(--accent-1);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--accent-1);
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 1rem;
}

/* =========================================
   Contact Form & Footer
   ========================================= */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-text {
    font-size: 1.1rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contact-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
}

.social-links {
    margin-top: 2.5rem;
    display: flex;
    gap: 1rem;
}

.social-btn {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
}

.social-btn:hover {
    background: var(--accent-1);
    color: #fff;
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 2.5rem;
    border-radius: var(--border-radius);
}

.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: 0.8rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.submit-btn {
    width: 100%;
    margin-top: 1rem;
}

.footer {
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    background: var(--bg-main);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.footer-note {
    font-size: 0.8rem;
}

/* =========================================
   Responsive Design
   ========================================= */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column-reverse;
        text-align: center;
        gap: 2rem;
        padding-top: 3rem;
    }

    .hero-actions {
        justify-content: center;
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* In a real app, add a hamburger menu */
    }

    .name {
        font-size: 3rem;
    }

    .role {
        font-size: 1.8rem;
    }

    .hero-image-wrapper {
        width: 250px;
        height: 250px;
    }

    .hero-image {
        width: 230px;
        height: 230px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 4rem 1.5rem;
    }
}