:root {
    --bg-color: #f7fcfb;
    --text-color: #1a1a1a;
    --accent-mint: #4fd1c5;
    --accent-mint-soft: rgba(79, 209, 197, 0.1);
    --accent-mint-dark: #319795;
    --border-color: #e2e8f0;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark-mode {
    --bg-color: #0d1117;
    --text-color: #e6edf3;
    --accent-mint: #4fd1c5;
    --accent-mint-dark: #81e6d9;
    --border-color: #30363d;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
}

#custom-cursor {
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--accent-mint);
    background-color: transparent;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.3s ease;
    transform: translate(-50%, -50%);
}

#custom-cursor.hover {
    background-color: rgba(79, 209, 197, 0.5); /* Semi-transparent mint */
    transform: translate(-50%, -50%) scale(1.8);
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 2rem 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
}

.logo {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent-mint-dark);
    text-decoration: none;
}

nav { display: flex; gap: 2rem; align-items: center; }
nav a { text-decoration: none; color: var(--text-color); font-size: 0.8rem; font-weight: 600; }

#theme-toggle {
    background: var(--accent-mint);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
}

main { max-width: 1200px; margin: 0 auto; padding: 0 10%; }

section { padding: 8rem 0; opacity: 0; transform: translateY(30px); transition: var(--transition); }
section.visible { opacity: 1; transform: translateY(0); }

.section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-mint);
    margin-bottom: 2rem;
    display: block;
}

.hero { height: 80vh; display: flex; flex-direction: column; justify-content: center; }
.hero h1 { font-size: clamp(2.5rem, 8vw, 5rem); line-height: 1.1; font-weight: 800; }
.hero p { font-size: 1.2rem; opacity: 0.6; margin-top: 1rem; }
.highlight { color: var(--accent-mint); }

/* Works: Boxed Layout */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

project-card {
    display: block;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 20px;
    transition: var(--transition);
}

project-card:hover {
    border-color: var(--accent-mint);
    transform: translateY(-10px);
    background: var(--accent-mint-soft);
}

/* Modal for Details */
#project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 2000;
    display: none;
    overflow-y: auto;
    padding: 5rem 10%;
}

.modal-close {
    position: fixed;
    top: 2rem;
    right: 10%;
    font-size: 0.8rem;
    font-weight: 800;
    cursor: none;
    background: var(--accent-mint);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
}

.modal-content h2 { font-size: 3rem; margin-bottom: 1rem; }
.modal-content .description { font-size: 1.2rem; opacity: 0.7; margin-bottom: 3rem; }

/* Contact Form */
.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
input, textarea {
    width: 100%;
    padding: 1rem 0;
    border: none;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    font-family: inherit;
    margin-bottom: 2rem;
}

.submit-btn {
    background: var(--text-color);
    color: var(--bg-color);
    border: none;
    padding: 1rem 3rem;
    font-weight: 700;
    cursor: none;
}

footer { padding: 4rem 10%; opacity: 0.4; font-size: 0.8rem; }

@media (max-width: 768px) {
    body { cursor: auto; }
    #custom-cursor { display: none; }
    .contact-container { grid-template-columns: 1fr; }
}