/* Modern Reset & Variables */
:root {
    --primary-color: #818cf8;
    --primary-hover: #a5b4fc;
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;

    --font-main: 'Inter', system-ui, -apple-system, sans-serif;

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

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);

    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

/* Light Theme Variables (Optional Future Proofing) */
body.light-mode {
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    /* Offset for fixed header + breathing room */
}

body {
    font-family: var(--font-main);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: none;
    /* Removed static pattern for JS canvas */
}

/* Light Mode Nav Fix */
body.light-mode .header {
    background-color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-mode .logo {
    color: var(--primary-color);
}

body.light-mode .nav-link {
    color: var(--text-secondary);
    font-weight: 600;
}

body.light-mode .nav-link:hover,
body.light-mode .nav-link.active {
    color: var(--primary-color);
}

ul {
    list-style: none;
}

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

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

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-weight: 700;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

/* Canvas Background */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Header & Nav */
.header {
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

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

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

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

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

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

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-medium);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: var(--transition-medium);
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    /* Offset fixed header */
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    width: 100%;
}

.greeting {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    display: block;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    font-weight: 800;
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-medium);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.4);
}

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

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

.btn-full {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* Hero Visual (Code Block) */
.code-block {
    background-color: #1e1e1e;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: var(--transition-medium);
}

.code-block:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

.code-header {
    background-color: #252526;
    padding: 12px 16px;
    display: flex;
    gap: 8px;
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red {
    background-color: #ff5f56;
}

.yellow {
    background-color: #ffbd2e;
}

.green {
    background-color: #27c93f;
}

.code-content {
    padding: 24px;
    font-family: 'Consolas', monospace;
    font-size: 0.9rem;
    color: #d4d4d4;
    overflow-x: auto;
}

.keyword {
    color: #569cd6;
}

.variable {
    color: #9cdcfe;
}

.property {
    color: #dcdcaa;
}

.string {
    color: #ce9178;
}

.boolean {
    color: #569cd6;
}

/* About Section */
.about {
    background-color: var(--surface-color);
}

.about-content {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

.about-text {
    max-width: 800px;
    text-align: center;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.skills-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-item {
    background-color: var(--background-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.project-card {
    background-color: var(--surface-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.project-image {
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

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

.project-info h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-tags span {
    font-size: 0.75rem;
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.link-icon {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

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

/* Contact Section */
/* Contact Section (Simplified) */
.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.contact-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.contact-text {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Footer */
.footer {
    padding: var(--spacing-md) 0;
    background-color: var(--background-color);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.heart-icon {
    color: #ff5f56;
}

.social-links {
    margin-top: var(--spacing-sm);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: var(--transition-medium);
}

.social-link:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .section {
        padding: var(--spacing-lg) 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--background-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-medium);
    }

    .nav-list.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-description {
        margin: 0 auto var(--spacing-md);
    }

    .code-block {
        display: none;
        /* Hide complex visual on mobile */
    }
}

/* Animations */
.hidden-el {
    opacity: 0;
    filter: blur(5px);
    transition: all 1s;
}

.show-el {
    opacity: 1;
    filter: blur(0);
    transform: translateX(0) translateY(0);
}

.slide-left {
    transform: translateX(-100%);
}

.slide-right {
    transform: translateX(100%);
}

.slide-up {
    transform: translateY(50px);
}

.zoom-in {
    transform: scale(0.8);
}

/* Stagger Delays */
.delay-100 {
    transition-delay: 100ms;
}

.delay-200 {
    transition-delay: 200ms;
}

.delay-300 {
    transition-delay: 300ms;
}

.delay-400 {
    transition-delay: 400ms;
}

.delay-500 {
    transition-delay: 500ms;
}

.delay-600 {
    transition-delay: 600ms;
}