:root {
    --bg-color: #ffffff;
    --text-color: #1a202c;
    --accent-color: #2563eb; 
    --card-bg: #f8fafc;
    --input-bg: #ffffff;
    --modal-overlay: rgba(0, 0, 0, 0.4);
    --transition-speed: 0.5s;
    --shadow: 0 15px 35px rgba(37, 99, 235, 0.1);
    --radius-large: 30px; 
}

[data-theme="dark"] {
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: #ff0000;
    --card-bg: #0a0a0a;
    --input-bg: #111111;
    --modal-overlay: rgba(0, 0, 0, 0.9);
    --shadow: none; 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

canvas { position: fixed; top: 0; left: 0; z-index: -1; pointer-events: none; }

.container { max-width: 1000px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 1; }

/* Interactive Hover Logic */
.interactive { transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), filter 0.3s ease; }
.interactive:hover { transform: scale(1.05); cursor: pointer; }

/* Theme Toggle */
#theme-toggle {
    position: fixed; bottom: 25px; right: 25px; z-index: 9999;
    width: 140px; height: 38px; border-radius: 20px;
    background: var(--bg-color); border: 1px solid var(--accent-color);
    color: var(--accent-color); font-weight: 700;
    text-transform: uppercase; font-size: 0.6rem; letter-spacing: 1px;
}

/* Hero */
.hero { padding: 8rem 0 5rem 0; display: flex; align-items: center; justify-content: space-between; gap: 3rem; }
h1 { font-size: 3rem; font-weight: 900; }
.highlight { color: var(--accent-color); }
.profile-img { 
    width: 260px; height: 260px; 
    border-radius: 200px; 
    object-fit: cover; border: 2px solid var(--accent-color); 
}

/* Rounded Sections */
section { padding: 6rem 0; border-top: 1px solid rgba(128,128,128,0.1); }
h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 4px; color: var(--accent-color); margin-bottom: 2.5rem; font-weight: 800; }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1.5rem; }
.skill-item { 
    padding: 1.2rem; background: var(--card-bg); text-align: center; font-weight: 700; 
    border-radius: var(--radius-large); border: 1px solid rgba(128,128,128,0.1); 
}

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.project-card { 
    background: var(--card-bg); padding: 2.5rem; 
    border-radius: var(--radius-large); box-shadow: var(--shadow);
    display: flex; flex-direction: column; justify-content: space-between;
}
.project-card:hover { border: 1px solid var(--accent-color); }

/* Visit Button for Projects */
.visit-btn {
    margin-top: 1.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--radius-large);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
    text-decoration: none;
    display: inline-block;
    width: fit-content;
}

/* Contact Form */
.contact-form { display: grid; gap: 1.5rem; width: 100%; }
.form-group { display: flex; flex-direction: column; width: 100%; }
.form-group label { font-size: 0.75rem; font-weight: 800; color: var(--accent-color); margin-bottom: 0.5rem; }
.form-group input, .form-group textarea { width: 100%; padding: 1.2rem; background: var(--input-bg); border: 1px solid rgba(128,128,128,0.3); color: var(--text-color); border-radius: 4px; font-family: inherit; }
.submit-btn { background: var(--accent-color); color: white; border: none; padding: 1.2rem 3rem; font-weight: 900; text-transform: uppercase; cursor: pointer; border-radius: 4px; width: fit-content; }

#form-status { font-weight: 700; font-size: 0.9rem; margin-top: 1rem; }

/* Footer & Socials */
footer { padding: 4rem 0; text-align: center; border-top: 1px solid rgba(128,128,128,0.1); }
.social-links { display: flex; justify-content: center; gap: 2.5rem; margin-bottom: 1.5rem; }
.social-icon { font-size: 1.5rem; color: var(--accent-color); text-decoration: none; }

/* Modal */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--modal-overlay); backdrop-filter: blur(8px); z-index: 10000; justify-content: center; align-items: center; }
.modal-content { background: var(--bg-color); padding: 3rem; max-width: 500px; border-radius: var(--radius-large); border: 2px solid var(--accent-color); position: relative; }
.close-btn { position: absolute; top: 1rem; right: 1.5rem; cursor: pointer; font-size: 2rem; color: var(--accent-color); }

@media (max-width: 768px) {
    .hero { flex-direction: column-reverse; text-align: center; padding: 4rem 0; }
    .profile-img { width: 220px; height: 220px; }
    .submit-btn { width: 100%; }
}