:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --border: #334155;
    --input-bg: #0f172a;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.form-card {
    margin-bottom: 3rem;
}

h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.password-input-wrapper {
    position: relative;
    display: flex;
}

.password-input-wrapper input {
    padding-right: 3rem;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    transition: color 0.2s;
}

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

.btn-primary {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

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

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

.password-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pass-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.pass-title {
    font-weight: 700;
    font-size: 1.1rem;
}

.pass-actions button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-left: 0.5rem;
    transition: color 0.2s;
}

.pass-actions .delete-btn:hover {
    color: var(--danger);
}

.pass-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: var(--input-bg);
    padding: 0.5rem;
    border-radius: 6px;
}

.pass-value {
    flex-grow: 1;
    font-family: monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.masked {
    -webkit-text-security: disc;
}

.copy-btn {
    font-size: 0.8rem;
    opacity: 0.7;
}

.copy-btn:hover {
    opacity: 1;
}

/* ============================================
   Auth Styles
   ============================================ */

.auth-section {
    max-width: 400px;
    margin: 0 auto;
}

.auth-switch {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.confirm-message {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: center;
}

/* Header with logout */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#user-email {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.btn-logout {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

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

/* Toast notifications */
.error-toast,
.success-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 500;
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

.error-toast {
    background-color: var(--danger);
    color: white;
}

.success-toast {
    background-color: #22c55e;
    color: white;
}

@keyframes slideUp {
    from {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

.empty-message {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem;
    grid-column: 1 / -1;
}

/* Responsive */
@media (max-width: 600px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .user-info {
        flex-direction: column;
    }
}