@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&display=swap');

/* AI-assisted: Neo-Brutalist styling generated by Gemini */
:root {
    /* Light Mode - Neo-Brutalist */
    --bg-color: #f6f3eb; /* Off-white / beige */
    --card-bg: #ffffff;
    --text-main: #000000;
    --border-color: #000000;
    --accent-color: #ffde00; /* Punchy Yellow */
    --accent-hover: #ffb700;
    --danger-color: #ff3366; /* Punchy Pink/Red */
    --danger-hover: #d11244;
    --btn-text: #000000;
    
    --shadow-hard: 6px 6px 0px #000000;
    --shadow-hard-hover: 2px 2px 0px #000000;
    --border-thick: 3px solid #000000;
    --border-thin: 2px solid #000000;
    --radius: 0px; /* Sharp corners */
}

[data-theme="dark"] {
    /* Dark Mode - Neo-Brutalist */
    --bg-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-main: #ffffff;
    --border-color: #ffffff;
    --accent-color: #ffde00; /* Punchy Yellow */
    --accent-hover: #ffb700;
    --danger-color: #ff3366;
    --danger-hover: #ff668c;
    --btn-text: #000000;
    
    --shadow-hard: 6px 6px 0px #ffffff;
    --shadow-hard-hover: 2px 2px 0px #ffffff;
    --border-thick: 3px solid #ffffff;
    --border-thin: 2px solid #ffffff;
}

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

body {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
}

/* Auth Pages (Login/Register) */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 1rem;
}

.auth-card {
    background: var(--card-bg);
    border: var(--border-thick);
    box-shadow: var(--shadow-hard);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    border-radius: var(--radius);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 700;
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: -1px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    background: var(--card-bg);
    border: var(--border-thin);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
}

.form-control:focus {
    outline: none;
    background: var(--bg-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-color);
    color: var(--btn-text);
    padding: 1rem;
    border: var(--border-thick);
    box-shadow: var(--shadow-hard);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    width: 100%;
    transition: all 0.1s ease;
}

.btn:hover {
    background: var(--accent-hover);
}

.btn:active {
    transform: translate(4px, 4px);
    box-shadow: var(--shadow-hard-hover);
}

.btn-danger {
    background: var(--danger-color);
    color: #ffffff;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

.toggle-link {
    text-align: center;
    margin-top: 2rem;
    font-weight: 600;
}

.toggle-link a {
    color: var(--text-main);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
}

.toggle-link a:hover {
    color: var(--accent-color);
    background: var(--text-main);
}

/* Dashboard */
.dashboard-header {
    background: var(--card-bg);
    border-bottom: var(--border-thick);
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    font-weight: 700;
    font-size: 1.2rem;
    text-transform: uppercase;
}

.dashboard-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    margin-bottom: 3rem;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.search-bar {
    flex-grow: 1;
    max-width: 600px;
    box-shadow: var(--shadow-hard);
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: var(--card-bg);
    border: var(--border-thick);
    box-shadow: var(--shadow-hard);
    padding: 1.5rem;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.contact-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 10px 10px 0px var(--border-color);
}

.contact-header {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: var(--border-thick);
    padding-bottom: 1rem;
}

.contact-avatar {
    width: 50px;
    height: 50px;
    border: var(--border-thick);
    background: var(--accent-color);
    color: var(--btn-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-detail {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
}

.contact-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

/* Modal */
.modal {
    display: none; 
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active { display: flex; }

.modal-content {
    background: var(--card-bg);
    border: var(--border-thick);
    box-shadow: 12px 12px 0px var(--border-color);
    padding: 2.5rem;
    width: 100%;
    max-width: 500px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: var(--border-thick);
    padding-bottom: 1rem;
}

.modal-header h2 { font-weight: 700; font-size: 1.8rem; text-transform: uppercase;}

.close-btn {
    font-size: 2.5rem;
    cursor: pointer;
    font-weight: 700;
    line-height: 1;
}

.close-btn:hover { color: var(--danger-color); }

/* Theme Toggle Button */
.theme-toggle {
    background: var(--card-bg);
    border: var(--border-thick);
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-hard);
    transition: all 0.1s ease;
}

.theme-toggle:hover {
    background: var(--accent-color);
}

.theme-toggle:active {
    transform: translate(4px, 4px);
    box-shadow: var(--shadow-hard-hover);
}

.hidden { display: none !important; }