:root {
    --border-radius: 8px;
    --spacing: 1rem;
    --transition: all 0.2s ease;
}

[data-theme="light"] {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --text-primary: #495057;
    --text-secondary: #6c757d;
    --input-border: #ced4da;
    --accent-primary: #28a745;
    --accent-primary-hover: #218838;
    --accent-secondary: #007bff;
    --accent-secondary-hover: #0056b3;
    --accent-danger: #dc3545;
    --accent-danger-hover: #c82333;
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --input-border: #404040;
    --accent-primary: #2d5a27;
    --accent-primary-hover: #1e3d1a;
    --accent-secondary: #1e4b6e;
    --accent-secondary-hover: #153a56;
    --accent-danger: #8b2a2a;
    --accent-danger-hover: #6b2020;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.container {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    margin: var(--spacing);
}

.logo {
    display: block;
    margin: 0 auto 1rem auto;
    max-width: 120px;
    height: auto;
}

.logo.hide-when-logged-in {
    display: none;
}

h1 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    margin-bottom: 1rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

.action-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.action-btn:disabled {
    background-color: #404040;
    cursor: not-allowed;
    transform: none;
}

.logout-btn {
    width: 100%;
    background-color: var(--accent-danger);
    color: white;
    margin-top: 0.5rem;
    padding: 0.75rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

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

#connect-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--accent-secondary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 0.5rem;
}

#connect-btn:hover {
    background-color: var(--accent-secondary-hover);
    transform: translateY(-1px);
}

#toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    min-width: 200px;
    max-width: 90%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: none;
}

.success {
    background-color: rgba(76, 175, 80, 0.1);
    color: #81c784;
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.error {
    background-color: rgba(244, 67, 54, 0.1);
    color: #e57373;
    border: 1px solid rgba(244, 67, 54, 0.2);
}

.user-info {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: rgba(33, 150, 243, 0.1);
    border-radius: var(--border-radius);
    display: none;
    font-size: 0.9rem;
    border: 1px solid rgba(33, 150, 243, 0.2);
}

.user-info.visible {
    display: block;
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spinner.visible {
    display: block;
}

.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--input-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: var(--transition);
    z-index: 1001;
}

.theme-toggle:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: scale(1.1);
}

.logout-toggle {
    position: fixed;
    top: 1rem;
    right: 4rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--input-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: var(--transition);
    z-index: 1001;
}

.logout-toggle:hover {
    background-color: var(--accent-danger);
    border-color: var(--accent-danger);
    transform: scale(1.1);
}