:root {
    --bg-color: #ffffff;
    --text-color: #111111;
    --text-muted: #555555;
    --border-color: #dddddd;
    --card-bg: #f9f9f9;
    --accent: #000000;
    --status-bg: #f0f0f0;
    --status-color: #555;
    --status-border: #dddddd;
    --transition: 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #0c0c0c;
    --text-color: #f1f1f1;
    --text-muted: #888;
    --border-color: #222;
    --card-bg: #121212;
    --accent: #fff;
    --status-bg: #1a1a1a;
    --status-color: #aaa;
    --status-border: #2a2a2a;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Theme Toggle */
.theme-toggle-container {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 100;
}

/* Hero Section */
.hero {
    position: relative;
    height: 50vh;
    min-height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.hero-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    /* Desaturated/darkened for minimalism */
    filter: grayscale(40%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--bg-color));
    z-index: -1;
}

.hero-content {
    z-index: 1;
    padding: 0 20px;
}

h1 {
    font-size: clamp(2.2rem, 6vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 8px;
    color: var(--accent);
}

.subtitle {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Social Links */
.social-links-section {
    padding: 30px 20px 0;
    display: flex;
    justify-content: center;
}

.social-links {
    list-style: none;
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.social-btn {
    color: var(--text-muted);
    font-size: 1.5rem;
    transition: color var(--transition), transform var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--card-bg);
    text-decoration: none;
    cursor: pointer;
}

.social-btn:hover {
    color: var(--accent);
    border-color: var(--text-muted);
    transform: translateY(-3px);
}

/* Layout */
.main-content {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
    flex-grow: 1;
}

section.portfolio-section {
    margin-bottom: 80px;
}

section h2 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--accent);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

/* Cards */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 25px;
    transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
    border-color: #333;
    transform: translateY(-3px);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.status {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    display: inline-block;
    padding: 3px 6px;
    border-radius: 4px;
    background: var(--status-bg);
    color: var(--status-color);
    border: 1px solid var(--status-border);
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Timeline */
.timeline {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.timeline-item {
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border-color);
    padding-left: 20px;
    position: relative;
    transition: border-color var(--transition);
}

.timeline-item:hover {
    border-color: var(--text-muted);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 6px;
    width: 7px;
    height: 7px;
    background: var(--bg-color);
    border: 1px solid var(--text-muted);
    border-radius: 50%;
    transition: background var(--transition);
}

.timeline-item:hover::before {
    background: var(--accent);
}

.timeline-content h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
    color: var(--accent);
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    padding: 50px 20px 30px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    background: var(--card-bg);
}

.footer-content {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    text-align: left;
}

.site-footer h4 {
    color: var(--accent);
    margin-bottom: 15px;
    font-size: 1.2rem;
    font-weight: 600;
}

.testimonial {
    font-size: 1rem;
    color: var(--text-muted);
    font-style: italic;
    border-left: 3px solid var(--border-color);
    padding-left: 15px;
    margin: 0;
}

.testimonial cite {
    display: block;
    margin-top: 10px;
    font-style: normal;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
}

.newsletter-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.newsletter-form input {
    flex-grow: 1;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 0.95rem;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--text-muted);
}

.btn-primary {
    padding: 12px 20px;
    background: var(--accent);
    color: var(--bg-color);
    border: none;
    border-radius: 4px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition);
}

.btn-primary:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}