:root {
    /* Color Palette */
    --bg-color: #F9F8F6; /* Warm white */
    --text-main: #2D2A26; /* Soft black/brown */
    --text-muted: #6B665F; /* Muted taupe */
    --accent-primary: #8C6A48; /* Warm brown */
    --accent-secondary: #D4C5B5; /* Beige */
    --accent-highlight: #E8E1d9; /* Light beige */
    --link-color: #8C6A48;
    --border-color: #E0DAD5;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    font-size: 1.125rem;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-main);
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

a {
    color: var(--link-color);
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid transparent;
}

a:hover {
    border-bottom-color: var(--link-color);
    opacity: 0.8;
}

/* Utilities */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
    background-color: var(--text-main); /* Dark contrast */
    color: var(--bg-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 42, 38, 0.15);
    border-bottom: none;
    opacity: 1;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--text-main);
    color: var(--text-main);
}

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

.section {
    padding: var(--spacing-xl) 0;
}

/* Header */
header {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid transparent; 
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

nav ul {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

nav a {
    font-size: 0.95rem;
    color: var(--text-muted);
}

nav a:hover, nav a.active {
    color: var(--text-main);
}

.nav-cta {
    background: var(--accent-highlight);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    color: var(--text-main) !important;
}

/* Mobile Nav */
.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.hero-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    justify-content: space-between;
}

.hero-text {
    flex: 1.2;
    max-width: 650px;
}

.hero-image-container {
    flex: 0.8;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-profile-img {
    width: 350px;
    height: 350px;
    object-fit: cover;
    border-radius: 50%;
    border: 8px solid white;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    background-color: var(--accent-secondary);
}

.hero-sub {
    font-size: 1.35rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
}

@media (max-width: 992px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
        gap: var(--spacing-md);
    }
    .hero-text {
        max-width: 100%;
    }
    .hero-profile-img {
        width: 250px;
        height: 250px;
    }
    .hero-actions {
        justify-content: center;
    }
}

/* Cards (Generic) */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.card {
    background: #fff;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.2s ease;
}

.card:hover {
    border-color: var(--accent-primary);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

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

/* Work Page */
.filters {
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: all 0.2s;
}

.filter-btn.active, .filter-btn:hover {
    background: var(--accent-highlight);
    color: var(--text-main);
}

.project-card {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.project-card:last-child { border-bottom: none; }

.project-meta {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.project-impact {
    font-weight: 600;
    color: var(--text-main);
    margin: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-impact::before {
    content: "→";
    color: var(--accent-primary);
}

.details-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    margin-top: var(--spacing-sm);
    text-decoration: underline;
    padding: 0;
}

.project-details {
    display: none;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--accent-highlight);
    border-radius: 4px;
    font-size: 0.9rem;
}

.project-details.open { display: block; }

/* Credibility */
.credibility {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    opacity: 0.7;
}
.cred-list {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
    font-size: 0.9rem;
    flex-wrap: wrap;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
}

footer .socials {
    margin: var(--spacing-sm) 0;
}

footer a {
    margin: 0 var(--spacing-xs);
}

/* Contact Form */
.form-group {
    margin-bottom: var(--spacing-sm);
}

label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    background: #fff;
}

textarea { min-height: 150px; resize: vertical; }

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px var(--accent-highlight);
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    .mobile-toggle { display: block; }
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    }
    nav ul.open { display: flex; }
}