/* ===== CSS RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Dark Theme (Default) */
    --primary: hsl(250, 84%, 54%);
    --primary-light: hsl(250, 84%, 64%);
    --primary-dark: hsl(250, 84%, 44%);
    --secondary: hsl(320, 85%, 55%);
    --accent: hsl(180, 100%, 50%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, hsl(250, 84%, 54%), hsl(320, 85%, 55%));
    --gradient-secondary: linear-gradient(135deg, hsl(180, 100%, 50%), hsl(250, 84%, 54%));
    --gradient-dark: linear-gradient(135deg, hsl(240, 20%, 10%), hsl(240, 15%, 15%));

    /* Neutral Colors - Dark Theme */
    --bg-primary: hsl(240, 20%, 8%);
    --bg-secondary: hsl(240, 15%, 12%);
    --bg-tertiary: hsl(240, 12%, 16%);
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(0, 0%, 70%);
    --text-muted: hsl(0, 0%, 50%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme */
[data-theme="light"] {
    /* Neutral Colors - Light Theme */
    --bg-primary: hsl(0, 0%, 98%);
    --bg-secondary: hsl(0, 0%, 95%);
    --bg-tertiary: hsl(0, 0%, 92%);
    --text-primary: hsl(240, 20%, 10%);
    --text-secondary: hsl(240, 10%, 30%);
    --text-muted: hsl(240, 5%, 50%);

    /* Adjusted gradients for light theme */
    --gradient-dark: linear-gradient(135deg, hsl(0, 0%, 95%), hsl(0, 0%, 98%));

    /* Shadows for light theme */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);

    /* Border color for light theme */
    --border-color: rgba(0, 0, 0, 0.1);
}

/* Additional light mode component styling */
[data-theme="light"] .contact-form,
[data-theme="light"] .about-card,
[data-theme="light"] .skill-category,
[data-theme="light"] .project-card,
[data-theme="light"] .timeline-content,
[data-theme="light"] .contact-card {
    border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.15);
    color: hsl(240, 20%, 10%);
}

[data-theme="light"] .form-group input::placeholder,
[data-theme="light"] .form-group textarea::placeholder {
    color: hsl(240, 5%, 50%);
    opacity: 0.7;
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

[data-theme="light"] .footer {
    border-top-color: rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 25, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

.logo .dot {
    color: var(--primary);
    font-size: 2rem;
}

.logo:hover {
    transform: translateY(-2px);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

.nav-links a:not(.btn-primary):hover {
    color: var(--text-primary);
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

/* Theme Toggle Button */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    margin-left: var(--spacing-sm);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.theme-icon {
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.theme-toggle:active .theme-icon {
    transform: rotate(360deg);
}

/* Light mode navbar styling */
[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .logo {
    color: hsl(240, 20%, 10%);
}

[data-theme="light"] .logo .dot {
    color: var(--primary);
}

[data-theme="light"] .nav-links a {
    color: hsl(240, 10%, 30%);
}

[data-theme="light"] .nav-links a:not(.btn-primary):hover {
    color: hsl(240, 20%, 10%);
}

[data-theme="light"] .theme-toggle {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .mobile-menu-toggle span {
    background: hsl(240, 20%, 10%);
}

/* ===== BUTTONS ===== */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: var(--transition-base);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(124, 58, 237, 0.1);
    transform: translateY(-2px);
}

.btn-view {
    background: white;
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
}

.btn-view:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -150px;
    left: -150px;
    animation-delay: 7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(50px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 800px;
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideDown 0.6s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    animation: slideUp 0.6s ease 0.2s both;
}

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

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    animation: slideUp 0.6s ease 0.4s both;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    animation: slideUp 0.6s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    animation: slideUp 0.6s ease 0.8s both;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    animation: slideUp 0.6s ease 1s both;
}

.stat h3 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== SECTION STYLES ===== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.about-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.about-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.about-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.text-muted {
    color: var(--text-muted) !important;
    font-size: 0.9rem !important;
}

.about-description {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-description p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.skill-category:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.skill-tag {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.skill-tag:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: scale(1.05);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.project-image {
    position: relative;
    height: 200px;
    background: var(--gradient-dark);
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-content {
    padding: var(--spacing-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.project-tags span {
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== EXPERIENCE SECTION ===== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: var(--spacing-lg);
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 4px var(--bg-primary), 0 0 20px var(--primary);
}

.timeline-content {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--primary);
    transform: translateX(10px);
}

.timeline-date {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: var(--transition-base);
}

.contact-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-base);
    word-break: break-word;
    display: block;
}

.contact-card a:hover {
    color: var(--primary-light);
}

.contact-card p {
    color: var(--text-secondary);
    word-break: break-word;
}

.contact-form {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

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

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

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

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

.footer-bottom p {
    margin: 0.25rem 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .theme-toggle {
        margin-left: auto;
        margin-right: var(--spacing-sm);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-dot {
        left: 1px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }
}