:root {
    --bg-color: #0b0f19;
    --panel-bg: rgba(26, 32, 44, 0.6);
    --panel-border: rgba(255, 255, 255, 0.1);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #10b981;
    --card-bg: rgba(30, 41, 59, 0.5);
    --card-hover: rgba(30, 41, 59, 0.8);
    --transition: 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Glassmorphism */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    transition: opacity 0.5s ease, visibility 0.5s;
}

.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.view-active {
    opacity: 1;
    visibility: visible;
}

/* --- Tela de Bloqueio --- */
#lock-screen {
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.lock-container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
}

.lock-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.lock-container h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.lock-container p {
    color: var(--text-muted);
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border-radius: 10px;
    border: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

.btn {
    padding: 12px 20px;
    border-radius: 10px;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.w-100 { width: 100%; }

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.note {
    margin-top: 20px;
    font-size: 0.85rem;
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
    padding: 10px;
    border-radius: 8px;
}


/* --- Dashboard (Main Screen) --- */
#main-screen {
    display: flex;
}

.sidebar {
    width: 260px;
    height: 100vh;
    border-right: 1px solid var(--panel-border);
    display: flex;
    flex-direction: column;
}

.brand {
    padding: 30px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    color: var(--primary);
    border-bottom: 1px solid var(--panel-border);
}

.categories {
    padding: 20px 10px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.cat-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 12px 15px;
    border-radius: 8px;
    text-align: left;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
}

.cat-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.cat-btn.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--panel-border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.backup-actions {
    display: flex;
    gap: 8px;
}

.backup-actions .btn {
    font-size: 0.85rem;
    padding: 8px 10px;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.topbar {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--panel-border);
    background: rgba(11, 15, 25, 0.5);
    backdrop-filter: blur(10px);
}

.search-bar {
    position: relative;
    width: 300px;
}

.search-bar i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-bar input {
    width: 100%;
    padding: 10px 15px 10px 40px;
    border-radius: 20px;
    border: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
    color: white;
}
.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
}

.dashboard {
    padding: 40px;
    overflow-y: auto;
    flex: 1;
}

.passwords-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.pwd-card {
    background: var(--card-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 20px;
    transition: var(--transition);
    position: relative;
}

.pwd-card:hover {
    background: var(--card-hover);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.card-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
}

.card-title h3 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.card-category {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 8px;
    border-radius: 10px;
}

.card-actions {
    display: flex;
    gap: 5px;
}

.card-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 5px;
    transition: color 0.2s;
}
.card-btn:hover { color: var(--text-main); }
.card-btn.delete:hover { color: var(--danger); }

.card-body .field {
    margin-bottom: 10px;
}

.card-body .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}

.card-body .value {
    font-size: 0.95rem;
    font-family: monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 8px 10px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--primary);
    cursor: pointer;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}


/* --- Modal --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    padding: 30px;
    border-radius: 20px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 15px;
}

.form-row {
    display: flex;
    gap: 15px;
}
.flex-1 { flex: 1; }

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group select option {
    background: var(--bg-color);
}

.input-with-action {
    display: flex;
    position: relative;
}

.input-with-action input {
    padding-right: 80px;
}

.icon-btn {
    position: absolute;
    background: transparent;
    border: none;
    color: var(--text-muted);
    height: 100%;
    padding: 0 10px;
    cursor: pointer;
}

#toggle-pwd-vis { right: 40px; }
#generate-pwd-btn { right: 5px; color: var(--success); }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 25px;
}

/* Toast */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--panel-border);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease forwards;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

@media (max-width: 768px) {
    #main-screen { flex-direction: column; }
    .sidebar { width: 100%; height: auto; display: none; } /* Could add a hamburger menu */
    .topbar { padding: 15px 20px; flex-direction: column; gap: 15px;}
    .search-bar { width: 100%; }
}