:root {
    --bg: #ffffff;
    --text: #111111;
    --accent: #000000;
    --card-bg: #f9f9f9;
    --border: #dddddd;
    --transition: 0.25s ease-in-out;
}

body.dark-mode {
    --bg: #000000;
    --text: #ffffff;
    --accent: #ffffff;
    --card-bg: #111111;
    --border: #222222;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
}

/* --- NAVIGATION --- */
.navbar {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 10%;
    background-color: var(--bg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand-link { text-decoration: none; }

.nav-brand-link:hover {
    opacity: 0.8; 
}

.nav-brand {
    color: var(--text);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 1rem;
}

.nav-links { display: flex; align-items: center; gap: 20px; }

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
    padding-bottom: 4px;
    transition: opacity var(--transition);
}

.nav-links a.active, .nav-links a:hover { 
    opacity: 1; 
    border-bottom: 2px solid var(--accent); 
}

/* --- HERO & HEADERS --- */
.hero { padding: 6rem 10%; border-bottom: 1px solid var(--border); }

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    gap: 40px;
}

.hero-actions {
    margin-top: 2rem;
}

.hero-text h1 { font-size: clamp(2.5rem, 6vw, 4rem); line-height: 1.1; margin-bottom: 1rem; text-transform: uppercase; }

.hero-image img { width: 280px; height: 280px; object-fit: cover; border: 1px solid var(--border); }

.page-header { padding: 5rem 10% 3rem 10%; text-align: center; }

.subtitle { font-weight: 400; opacity: 0.7; }

/* --- GRIDS --- */
.spotlight-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 5rem 10%;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    padding: 40px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s var(--transition), border-color var(--transition);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

body.dark-mode .card:hover {
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

.card img { width: 48px; height: 48px; margin-bottom: 15px; object-fit: contain; }

body.dark-mode .icon-invert { filter: invert(1); }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 4rem 10%;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
}

.skill-category h4 { text-transform: uppercase; margin-bottom: 10px; font-size: 0.9rem; border-bottom: 2px solid var(--accent); display: inline-block; }

/* --- LIST VIEW & IMAGE SCALING --- */
.experience-list { padding: 2rem 10%; max-width: 1100px; margin: 0 auto; }

.static-spotlight { display: flex; gap: 40px; margin-bottom: 6rem; align-items: flex-start; }

.spotlight-image img {
    width: 250px;
    height: auto;
    border: 1px solid var(--border);
    padding: 10px;
    background: var(--card-bg);
    display: block;
}

.spotlight-image a img { transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease; }

.spotlight-image a:hover img { transform: scale(1.05); border-color: var(--accent); }

.spotlight-content h3 { font-size: 1.4rem; margin-bottom: 0.75rem; text-transform: uppercase; }

.spotlight-content ul { list-style: none; margin-top: 1.5rem; }

.spotlight-content li { margin-bottom: 12px; position: relative; padding-left: 25px; }

.spotlight-content li::before { content: "—"; position: absolute; left: 0; color: var(--accent); opacity: 0.4; }

/* --- ABOUT & FORMS --- */
.about-content { max-width: 800px; margin: 0 auto; padding: 5rem 10%; }

.content-block { margin-bottom: 3.5rem; }

.content-block h2 {
    font-size: 1.4rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.2rem;
    border-left: 3px solid var(--accent);
    padding-left: 15px;
}

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

.form-group label {
    display: block;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg);
}

.form-actions { margin-top: 2rem; }

#result { margin-top: 1rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; }

/* --- BUTTONS & FOOTER --- */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    background: var(--accent);
    color: var(--bg);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    border: 1px solid var(--accent);
    transition: var(--transition);
    cursor: pointer;
}

.btn:hover { background: transparent; color: var(--text); transform: translateY(-2px); }

.footer { text-align: center; padding: 4rem 10%; border-top: 1px solid var(--border); font-size: 0.8rem; }

.socials { display: flex; justify-content: center; align-items: center; gap: 24px; margin-bottom: 1.5rem; }

.socials a { color: var(--text); text-decoration: none; font-weight: 600; opacity: 0.7; }

.socials a:hover { opacity: 1; text-decoration: underline; }

#theme-toggle {
    background: var(--text);
    color: var(--bg);
    border: 1px solid var(--text);
    padding: 8px 16px;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.65rem;
    text-transform: uppercase;
}

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 768px) {
    .hero-container { 
        flex-direction: column-reverse; 
        text-align: center; 
        padding: 2rem 5%;
    }

    .nav-container { 
        flex-direction: column; 
        gap: 1rem; 
        padding: 1rem 0;
    }

    .nav-links { 
        justify-content: center; 
        flex-wrap: wrap; 
        gap: 15px; 
    }

    .nav-links a {
        font-size: 0.7rem;
        letter-spacing: 0.5px;
    }

    .spotlight-grid, .skills-grid { 
        grid-template-columns: 1fr; 
        padding: 3rem 8%;
    }

    .static-spotlight { 
        flex-direction: column; 
        align-items: center; 
        text-align: center; 
        gap: 1.5rem;
    }

    .spotlight-image img { 
        width: 100%; 
        max-width: 320px; 
    }

    /* Prevents "stuck" hover states on touch screens */
    .card:hover, .spotlight-image a:hover img { 
        transform: none; 
    }
}