/* --- CSS Variables --- */
:root {
    /* Colors - Dark aesthetic */
    --bg-color: #0b0f19;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    
    /* Accents - Modern Tech Vibe */
    --accent: #3b82f6;      /* Blue */
    --accent-hover: #60a5fa;
    --secondary: #a855f7;   /* Purple */
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.4);
    --glass-top-border: rgba(255, 255, 255, 0.2);
    --glass-left-border: rgba(255, 255, 255, 0.15);
    
    /* Layout Elements */
    --nav-bg: rgba(11, 15, 25, 0.8);
    --surface: rgba(255, 255, 255, 0.02);
    --surface-hover: rgba(255, 255, 255, 0.05);
    --title-gradient: linear-gradient(to right, #ffffff, #94a3b8);
    --title-shadow: 0 4px 30px rgba(255, 255, 255, 0.1);
    --input-bg: rgba(0, 0, 0, 0.2);
    --input-focus: rgba(0, 0, 0, 0.4);
    --footer-bg: rgba(0,0,0,0.3);
    
    /* Layout */
    --container-w: 1100px;
    --nav-height: 80px;

    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

[data-theme="light"] {
    --bg-color: #f8fafc;
    --text-color: #0f172a;
    --text-muted: #475569;
    
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --secondary: #9333ea;
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
    --glass-top-border: rgba(255, 255, 255, 1);
    --glass-left-border: rgba(255, 255, 255, 0.8);
    
    --nav-bg: rgba(248, 250, 252, 0.8);
    --surface: rgba(0, 0, 0, 0.03);
    --surface-hover: rgba(0, 0, 0, 0.06);
    --title-gradient: linear-gradient(to right, #0f172a, #475569);
    --title-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    --input-bg: rgba(0, 0, 0, 0.05);
    --input-focus: rgba(0, 0, 0, 0.1);
    --footer-bg: rgba(0,0,0,0.05);
}

.theme-toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.theme-toggle-btn:hover {
    color: var(--accent);
    transform: rotate(15deg);
}


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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height); /* For anchor links offset */
}

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

/* Decorative Background Glows */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: breathing 8s ease-in-out infinite alternate;
}

@keyframes breathing {
    0% { opacity: 0.15; transform: scale(1) translate(0, 0); }
    50% { opacity: 0.25; transform: scale(1.05) translate(20px, -20px); }
    100% { opacity: 0.15; transform: scale(1) translate(-20px, 20px); }
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    right: -100px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.text-muted {
    color: var(--text-muted);
}

.mb-4 { margin-bottom: 2rem; }
.mt-4 { margin-top: 2rem; }

ul.clean-list {
    list-style-type: none;
    padding-left: 0;
}

ul.clean-list li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
}

ul.clean-list li::before {
    content: "•";
    color: var(--accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Container */
.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Sections */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-top-border);
    border-left: 1px solid var(--glass-left-border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--glass-shadow);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-8px) scale(1.02);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 15px 45px 0 rgba(0, 0, 0, 0.6);
}

/* Buttons */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 500;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

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

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}

.btn-linkedin {
    background: #0A66C2;
    color: #fff;
    box-shadow: 0 4px 15px rgba(10, 102, 194, 0.4);
}

.btn-linkedin:hover {
    background: #004182;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 102, 194, 0.6);
}

.btn-block {
    width: 100%;
}

.btn-link {
    color: var(--accent);
    font-weight: 500;
    transition: color 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
}

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

.btn-contact {
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}
.btn-contact:hover {
    border-color: var(--accent);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: 0.3s;
}

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

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

.greeting {
    color: var(--accent);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 500;
    display: block;
    margin-bottom: 1rem;
}

.main-title {
    font-size: 4.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
    background: var(--title-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: var(--title-shadow);
}

.subtitle {
    font-size: 1.8rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin-bottom: 3rem;
    line-height: 1.8;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: slide-down 2s infinite;
}

/* --- About Section --- */
.about-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    list-style: none;
    padding: 0;
}

.skills-list li {
    background: var(--surface);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    position: relative;
    padding-left: 2.5rem;
}
.skills-list li::before {
    content: "▹";
    color: var(--accent);
    position: absolute;
    left: 1rem;
    font-size: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
}

.purpose-box {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(59, 130, 246, 0.08);
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.box-icon {
    font-size: 2.5rem;
}

/* --- Services Section --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 3rem 2rem;
    text-align: center;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.service-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.service-card .clean-list li {
    text-align: left;
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* --- Projects Section --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-content {
    padding: 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.project-tags span {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
    background: var(--surface-hover);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    color: var(--text-color);
}

/* --- Experience & Skills Section --- */
.duo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

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

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

.timeline-dot {
    position: absolute;
    left: -2.4rem;
    top: 0.2rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 4px solid var(--bg-color);
    box-shadow: 0 0 0 2px var(--accent-hover);
}

.timeline-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.skills-wrapper {
    padding: 2rem;
}

.skills-category {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
}

.skill-tag.outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
}

/* --- Contact Section --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    padding: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.contact-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: var(--surface-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-text .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    background: var(--input-focus);
}

/* --- Footer --- */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 4rem 0 2rem;
    background: var(--footer-bg);
}

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

.quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 3rem;
    text-align: center;
    max-width: 800px;
}

.footer-divider {
    width: 100%;
    height: 1px;
    background: var(--glass-border);
    margin-bottom: 2rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
}

.social-links a:hover {
    transform: translateY(-3px);
}

.social-links a[aria-label="LinkedIn"]:hover {
    background: #0A66C2;
    color: #fff;
    border-color: #0A66C2;
    box-shadow: 0 5px 15px rgba(10, 102, 194, 0.4);
}

.social-links a[aria-label="GitHub"]:hover {
    background: #6e5494;
    color: #fff;
    border-color: #6e5494;
    box-shadow: 0 5px 15px rgba(110, 84, 148, 0.4);
}


/* --- Animations --- */
@keyframes slide-down {
    0% { transform: translate(-50%, 0); opacity: 1; }
    100% { transform: translate(-50%, 15px); opacity: 0; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

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

/* Typewriter Cursor */
.cursor-blink {
    display: inline-block;
    width: 3px;
    background-color: var(--accent);
    margin-left: 4px;
    animation: blink 1s step-end infinite;
}
.cursor-blink::before {
    content: '|';
    color: transparent;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Scroll Reveals Classes */
.reveals {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveals.active {
    opacity: 1;
    transform: translateY(0);
}


/* --- Responsive Design --- */
@media (max-width: 992px) {
    .main-title { font-size: 3rem; }
    .subtitle { font-size: 1.5rem; }
    
    .duo-grid, .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper { padding: 2.5rem; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: var(--nav-height);
        flex-direction: column;
        background: rgba(11, 15, 25, 0.95);
        backdrop-filter: blur(15px);
        width: 100%;
        height: calc(100vh - var(--nav-height));
        padding: 2rem;
        transition: 0.3s ease-in-out;
        border-top: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }

    /* Hamburger Animation */
    .mobile-menu-btn.active span:nth-child(1) { transform: rotate(-45deg) translate(-5px, 6px); }
    .mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
    .mobile-menu-btn.active span:nth-child(3) { transform: rotate(45deg) translate(-4px, -6px); }

    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .main-title { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
}

/* --- Floating Components --- */
.whatsapp-float {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.whatsapp-float:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    background-color: #1ebd5a;
    color: #fff;
}

@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
}