/* ==========================================================================
   Personal Website - Bold & Creative Theme
   Security: No external resources loaded via CSS (no @import from external URLs)
   ========================================================================== */

/* CSS Custom Properties */
:root {
    /* Bold Color Palette */
    --color-primary: #6c5ce7;
    --color-primary-dark: #5b4cdb;
    --color-secondary: #00cec9;
    --color-accent: #fd79a8;
    --color-accent-alt: #ffeaa7;

    /* Neutrals */
    --color-dark: #0a0a0a;
    --color-dark-soft: #1a1a2e;
    --color-gray: #636e72;
    --color-gray-light: #b2bec3;
    --color-light: #f8f9fa;
    --color-white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

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

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-dark);
    color: var(--color-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

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

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-white);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 6rem);
    margin-bottom: var(--spacing-sm);
}

.name-line {
    display: block;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.name-line:nth-child(2) {
    animation-delay: 0.4s;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-gray);
    max-width: 500px;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.profile-frame {
    width: 300px;
    height: 300px;
    border-radius: var(--radius-xl);
    background: var(--gradient-primary);
    padding: 4px;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    border-radius: calc(var(--radius-xl) - 4px);
    background: var(--color-dark-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-gray);
}

/* Floating Shapes */
.shape {
    position: absolute;
    border-radius: var(--radius-full);
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    width: 150px;
    height: 150px;
    background: var(--color-primary);
    opacity: 0.3;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 100px;
    height: 100px;
    background: var(--color-accent);
    opacity: 0.3;
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    background: var(--color-secondary);
    opacity: 0.3;
    top: 50%;
    right: 5%;
    animation-delay: 4s;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-gray);
    font-size: 0.8rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1.2s;
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-gray), transparent);
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(108, 92, 231, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-gray);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-dark);
}

.btn-full {
    width: 100%;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */

section {
    padding: var(--spacing-xl) 0;
}

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

.section-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray);
}

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

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
    background: var(--color-dark-soft);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-text .lead {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.about-text p {
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-sm);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.stat-card {
    background: var(--color-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform var(--transition-normal);
}

.stat-card:hover {
    transform: translateX(10px);
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ==========================================================================
   Writing/Blog Section
   ========================================================================== */

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.article-card {
    background: var(--color-dark-soft);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.article-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-card.featured .article-image {
    height: 100%;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    opacity: 0.5;
}

.article-tag {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--color-accent);
    color: var(--color-dark);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

.article-date {
    font-size: 0.85rem;
    color: var(--color-gray);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.article-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
    transition: color var(--transition-fast);
}

.article-card:hover .article-title {
    color: var(--color-primary);
}

.article-excerpt {
    color: var(--color-gray-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.read-more {
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.read-more:hover {
    color: var(--color-white);
    letter-spacing: 1px;
}

/* ==========================================================================
   Resume Section
   ========================================================================== */

.resume {
    background: var(--color-dark-soft);
}

.resume-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.resume-heading {
    font-size: 1.25rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: var(--spacing-md);
}

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

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-md);
}

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

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--spacing-md) - 5px);
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    border: 2px solid var(--color-dark-soft);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: 1.1rem;
    color: var(--color-white);
    margin-bottom: 4px;
}

.timeline-company {
    color: var(--color-gray-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-description {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* Skills */
.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.skill-name {
    font-size: 0.9rem;
    color: var(--color-gray-light);
}

.skill-bar {
    height: 8px;
    background: var(--color-dark);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    width: 0;
    transition: width 1s ease;
}

.skill-progress[data-progress="95"] { width: 95%; }
.skill-progress[data-progress="90"] { width: 90%; }
.skill-progress[data-progress="88"] { width: 88%; }
.skill-progress[data-progress="85"] { width: 85%; }
.skill-progress[data-progress="80"] { width: 80%; }

/* Education */
.education-item {
    background: var(--color-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}

.edu-date {
    font-size: 0.85rem;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.edu-degree {
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: 4px;
}

.edu-school {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-lead {
    font-size: 1.25rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-md);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-dark-soft);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.contact-method:hover {
    background: var(--color-primary);
    transform: translateX(10px);
}

.method-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-primary);
}

.contact-method:hover .method-icon {
    background: var(--color-white);
}

.method-text {
    font-weight: 500;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    padding-top: var(--spacing-md);
    background: var(--color-dark-soft);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
    border-color: var(--color-accent);
}

.form-group label {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--color-gray);
    pointer-events: none;
    transition: all var(--transition-fast);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: 4px;
    font-size: 0.7rem;
    color: var(--color-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: transparent;
}

.form-error {
    display: block;
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-top: 4px;
    min-height: 1.2em;
}

.form-status {
    text-align: center;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(0, 206, 201, 0.2);
    color: var(--color-secondary);
}

.form-status.error {
    display: block;
    background: rgba(253, 121, 168, 0.2);
    color: var(--color-accent);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: var(--color-dark);
    padding: var(--spacing-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-text {
    color: var(--color-gray);
    font-size: 0.9rem;
}

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

.social-link {
    color: var(--color-gray);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* Animation on scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-visual {
        order: -1;
        min-height: 300px;
    }

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

    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .stat-card {
        flex: 1;
        min-width: 150px;
    }

    .article-card.featured {
        grid-column: span 1;
        display: block;
    }

    .article-card.featured .article-image {
        height: 200px;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .stat-card {
        min-width: 100%;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}