:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #1a1f3a;
    --accent-primary: #00d9ff;
    --accent-hover: #00b8d4;
    --accent-purple: #7c3aed;
    --text-primary: #f0f4ff;
    --text-secondary: #8892b0;
    --border-color: #2d3748;
    --error-color: #ff4757;
    --success-color: #2ed573;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#app {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Auth Container (Login/Register) */
.auth-container {
    width: 100%;
    max-width: 400px;
}

/* Dashboard/Characters Container */
.dashboard-container {
    width: 100%;
    align-self: flex-start;
    margin-top: 2rem;
}

/* Card Component */
.card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.card-header {
    margin-bottom: 2rem;
    text-align: center;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: #1a1f3a; /* Same as card for blend, or slightly darker if preferred */
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.2);
}

/* Buttons */
.btn {
    display: inline-block;
    width: 100%;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #0a0e27; /* Dark text on cyan for contrast */
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
}

.btn-outline:hover {
    background-color: rgba(0, 217, 255, 0.1);
}

.btn-text {
    background: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.btn-text:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* Error Message */
.error-alert {
    background-color: rgba(255, 71, 87, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
}

/* Dashboard Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.user-info h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.user-info span {
    color: var(--accent-primary);
}

.btn-logout {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: auto;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-logout:hover {
    border-color: var(--error-color);
    color: var(--error-color);
}

/* Character Grid */
.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.character-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
}

.character-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md), 0 0 15px rgba(0, 217, 255, 0.1);
}

.char-avatar {
    width: 60px;
    height: 60px;
    background-color: var(--accent-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.char-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.char-details {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    grid-column: 1 / -1;
    padding: 3rem;
    background-color: rgba(26, 31, 58, 0.5);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border-color);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}