/* --- CSS VARIABLES & RESET --- */
:root {
    --color-accent: #00FF85; /* Electric Green */
    --font-heading: 'IBM Plex Mono', monospace;
    --font-body: 'Inter', sans-serif;
    --container-width: 1200px;
    --transition-speed: 0.3s ease;
}

[data-theme="dark"] {
    --color-background: #111111;
    --color-background-offset: #1A1A1A;
    --color-text: #E0E0E0;
    --color-text-secondary: #888888;
    --color-border: #333333;
}

[data-theme="light"] {
    --color-background: #FFFFFF;
    --color-background-offset: #F4F4F4;
    --color-text: #1C1C1C;
    --color-text-secondary: #555555;
    --color-border: #DDDDDD;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background-color: var(--color-background); color: var(--color-text); transition: background-color var(--transition-speed), color var(--transition-speed); }

/* Custom Scrollbar */
body::-webkit-scrollbar { width: 8px; }
body::-webkit-scrollbar-track { background: var(--color-background); }
body::-webkit-scrollbar-thumb { background-color: var(--color-accent); border-radius: 20px; }

.container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
a { color: var(--color-text); text-decoration: none; transition: color var(--transition-speed); }
a:hover { color: var(--color-accent); }
.section-title { font-family: var(--font-heading); font-size: clamp(2rem, 5vw, 2.5rem); margin-bottom: 60px; border-bottom: 1px solid var(--color-border); padding-bottom: 20px; }
.section-title span { color: var(--color-accent); margin-right: 15px; }
.btn { display: inline-block; background-color: transparent; border: 2px solid var(--color-accent); color: var(--color-accent); padding: 15px 40px; font-family: var(--font-heading); font-weight: 700; transition: background-color var(--transition-speed), color var(--transition-speed), transform 0.2s; cursor: pointer; }
.btn:hover { background-color: var(--color-accent); color: var(--color-background); }
.btn:active { transform: scale(0.98); }
.btn-outline { padding: 10px 20px; border: 1px solid var(--color-border); color: var(--color-text); font-family: var(--font-heading); font-size: 0.9rem; transition: var(--transition-speed); }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }
.skip-link { position: absolute; top: -40px; left: 0; background: var(--color-accent); color: var(--color-background); padding: 8px; z-index: 9999; transition: top 0.3s; }
.skip-link:focus { top: 0; }


/* --- HEADER --- */
.nav-cv-button {
    display: none;
}
.header { position: sticky; top: 0; width: 100%; z-index: 1000; background-color: rgba(17, 17, 17, 0.8); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); }
[data-theme="light"] .header { background-color: rgba(255, 255, 255, 0.8); }
.main-nav { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700; }
.nav-links { display: flex; list-style: none; gap: 40px; }
.nav-links a { font-family: var(--font-heading); font-size: 1rem; position: relative; padding-bottom: 5px; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: var(--color-accent); transform: scaleX(0); transform-origin: right; transition: transform var(--transition-speed); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-actions { display: flex; align-items: center; gap: 20px; }
.theme-toggle, .hamburger { background: none; border: none; cursor: pointer; color: var(--color-text); font-size: 1.2rem; }
.hamburger { display: none; }
.hamburger-line { display: block; width: 25px; height: 2px; background-color: var(--color-text); margin: 5px 0; transition: transform 0.3s, opacity 0.3s; }
.hamburger.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* --- HERO --- */
.hero { min-height: 90vh; display: flex; align-items: center; text-align: center; position: relative; background-image: radial-gradient(var(--color-border) 1px, transparent 1px); background-size: 30px 30px; }
.hero-container { margin-left: auto; margin-right: auto; }
.status-indicator { display: flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--font-heading); margin-bottom: 20px; }
.status-dot { width: 10px; height: 10px; background-color: var(--color-accent); border-radius: 50%; animation: glow 1.5s infinite alternate; }
@keyframes glow { from { box-shadow: 0 0 5px var(--color-accent); } to { box-shadow: 0 0 20px var(--color-accent); } }
.hero h1 { font-family: var(--font-heading); font-size: clamp(3rem, 10vw, 6rem); line-height: 1.1; }
.hero h2 { font-size: clamp(1rem, 4vw, 1.2rem); letter-spacing: 2px; color: var(--color-text-secondary); margin-top: 1rem; }
.hero h3 { font-family: var(--font-heading); color: var(--color-accent); }
.hero .subtitle { font-size: clamp(1rem, 3vw, 1.25rem); color: var(--color-text-secondary); max-width: 600px; margin: 20px auto 0; line-height: 1.6; }
.scroll-down-link { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); }
.scroll-down-indicator { width: 20px; height: 30px; border: 2px solid var(--color-text); border-radius: 20px; position: relative; }
.scroll-down-indicator::before { content: ''; position: absolute; top: 6px; left: 50%; width: 4px; height: 4px; background: var(--color-text); border-radius: 50%; transform: translateX(-50%); animation: scroll-anim 2s infinite; }
@keyframes scroll-anim { 0% { opacity: 1; top: 6px; } 100% { opacity: 0; top: 18px; } }

/* ADDED: New styles for the name animation */
.hero h1 span {
    /* Styles for the final, revealed letters */
    transition: color 0.3s ease-in-out, text-shadow 0.3s ease-in-out;
}

.hero h1 span.scrambling {
    /* Style for the letters while they are actively changing */
    color: var(--color-accent);
    text-shadow: 0 0 8px var(--color-accent);
}


/* --- SECTIONS --- */
.about, .skills, .education, .services, .projects, .contact, .quote { padding: 120px 0; }
.skills, .services { background-color: var(--color-background-offset); }
.about-container { display: grid; grid-template-columns: 2fr 1fr; gap: 80px; align-items: center; }
.about-text p { line-height: 1.8; color: var(--color-text-secondary); margin-bottom: 20px; }
.about-image img { width: 100%; filter: grayscale(100%); transition: filter var(--transition-speed); }
.about-image img:hover { filter: grayscale(0%); }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; }
.skill-category h3 { font-family: var(--font-heading); font-size: 1.5rem; color: var(--color-accent); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--color-border); }
.skill-category ul { list-style: none; }
.skill-category li { font-size: 1.1rem; color: var(--color-text); margin-bottom: 10px; }

.education-grid { display: grid; gap: 20px; }
.education-entry { display: flex; align-items: flex-start; gap: 20px; padding: 20px; border: 1px solid var(--color-border); border-radius: 8px; }
.education-entry i { font-size: 1.5rem; color: var(--color-accent); margin-top: 5px; }
.education-info { flex-grow: 1; }
.education-info h3 { font-family: var(--font-heading); font-size: 1.2rem; margin-bottom: 5px; }
.education-info p { color: var(--color-text-secondary); }
.education-year p { font-family: var(--font-heading); color: var(--color-accent); font-size: 1.1rem; text-align: right; white-space: nowrap; }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.service-card { border: 1px solid var(--color-border); padding: 40px; transition: var(--transition-speed); }
.service-card:hover { border-color: var(--color-accent); transform: translateY(-5px); }
.service-number { font-family: var(--font-heading); font-size: 1.2rem; color: var(--color-accent); margin-bottom: 20px; display: block; }
.service-card h3 { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 15px; }
.service-card p { color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 20px; }
.service-deliverables { list-style: none; color: var(--color-text); }
.service-deliverables li { margin-bottom: 8px; position: relative; padding-left: 20px; }
.service-deliverables li::before { content: '›'; position: absolute; left: 0; color: var(--color-accent); font-weight: 700; }

.projects { background-color: var(--color-background); }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.project-card { background-color: var(--color-background-offset); border: 1px solid var(--color-border); display: flex; flex-direction: column; transition: var(--transition-speed); position: relative; overflow: hidden; }
.project-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); border-color: var(--color-accent); }
[data-theme="dark"] .project-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.4); }
.project-card img { width: 100%; height: 220px; object-fit: cover; border-bottom: 1px solid var(--color-border); }
.project-card-content { padding: 30px; flex-grow: 1; display: flex; flex-direction: column; }
.project-card h3 { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 10px; }
.project-description { color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 20px; flex-grow: 1; }
.project-tech-stack { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; font-family: var(--font-heading); font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: 20px; }
.project-links { display: flex; gap: 20px; font-size: 1.5rem; color: var(--color-text-secondary); }

.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: flex-start; }
.contact-info .section-title { text-align: left; border-bottom: none; padding-bottom: 0; }
.contact-subtitle { color: var(--color-text-secondary); line-height: 1.6; max-width: 450px; }
.contact-details { margin-top: 30px; display: grid; gap: 20px; }
.contact-item { display: flex; align-items: center; gap: 15px; }
.contact-item i { color: var(--color-accent); font-size: 1.2rem; }
.contact-item a { font-size: 1.1rem; font-weight: 500; }
.contact-form { width: 100%; display: flex; flex-direction: column; gap: 20px; }
.form-group { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 15px; border-radius: 0; border: 1px solid var(--color-border); background: var(--color-background-offset); color: var(--color-text); font-family: var(--font-body); font-size: 1rem; }
.contact-form input:focus, .contact-form textarea:focus { outline: 1px solid var(--color-accent); }
#form-status { margin-top: 20px; font-weight: 500; text-align: center; }

.quote .container { text-align: center; }
.quote-text { margin: 20px 0; }
.quote-author { color: var(--color-text-secondary); }


/* --- FOOTER --- */
.footer { padding: 30px 0; border-top: 1px solid var(--color-border); }
.footer-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; position: relative; }
.footer-info { color: var(--color-text-secondary); }
.footer-contact { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.footer-contact a { font-size: 0.9rem; color: var(--color-text-secondary); }
.footer-social-links a { font-family: var(--font-heading); font-size: 1rem; margin-left: 20px; }
.back-to-top { position: absolute; right: 0; bottom: 0; font-size: 1.5rem; }

/* --- SCROLL REVEAL --- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
    .nav-links { gap: 30px; }
    .nav-actions .btn-outline { display: none; }
    .contact-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .about, .skills, .education, .services, .projects, .contact, .quote { padding: 80px 0; }
    
    .section-title { font-size: clamp(1.8rem, 5vw, 2.2rem); margin-bottom: 40px; }

    .main-nav { height: 70px; }
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--color-background);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(-100%);
        transition: transform var(--transition-speed);
        z-index: 998;
        gap: 20px;
    }
    .nav-links.active { transform: translateX(0); }
    .nav-links a { font-size: 1.5rem; }

    .nav-cv-button {
        display: inline-block;
        margin-top: 25px;
        padding: 12px 25px;
    }

    .hamburger { display: block; z-index: 999; }
    
    .hero { min-height: 80vh; }
    .hero h1 { font-size: clamp(2.5rem, 12vw, 4rem); }

    .about-container { grid-template-columns: 1fr; }
    .about-image { grid-row: 1; max-width: 300px; margin: 0 auto 40px; }

    .education-entry { flex-direction: column; align-items: flex-start; gap: 10px; }
    .education-year p { text-align: left; }
    
    .form-group { grid-template-columns: 1fr; }
    
    .footer-container { flex-direction: column; gap: 15px; text-align: center; }
    .footer-social-links a { margin: 0 10px; }
    .back-to-top { position: static; margin-top: 10px; }
    
}