/* --- styles.css --- */

/* Reset and Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%); --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%); --warning-gradient: linear-gradient(135deg, #ffa726 0%, #ff7043 100%); --bg-primary: #f8fafc; --bg-secondary: #ffffff; --bg-tertiary: #f1f5f9; --text-primary: #1e293b; --text-secondary: #64748b; --text-muted: #94a3b8; --border-color: #e2e8f0; --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05); --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1); --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1); --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1); --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1rem; --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }

/* Screen Management */
.screen { display: none; width: 100%; height: 100%; }
.screen.active { display: flex; }
#loginScreen, #unlockScreen { position: fixed; top: 0; left: 0; z-index: 1000; min-height: 100vh; background: var(--primary-gradient); align-items: center; justify-content: center; padding: 1rem; }
#mainScreen { display: none; flex-direction: column; position: relative; min-height: 100vh; }
#mainScreen.active { display: flex; }

/* Login & Unlock Container */
.login-container { background: var(--bg-secondary); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); width: 100%; max-width: 400px; /* Mobile-first default */ animation: slideUp 0.6s ease-out; padding: clamp(1.5rem, 5vw, 2.5rem); }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.login-header { text-align: center; margin-bottom: clamp(1.5rem, 4vw, 2rem); }
.login-header i { font-size: clamp(2rem, 8vw, 3rem); background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 1rem; display: block; }
.login-header h1 { font-size: clamp(1.5rem, 6vw, 2rem); font-weight: 700; margin-bottom: 0.5rem; }
.login-header p { color: var(--text-secondary); font-size: 0.875rem; }

/* Auth Tabs */
.auth-tabs { display: flex; background: var(--bg-tertiary); border-radius: var(--radius-md); padding: 0.25rem; margin-bottom: 2rem; }
.tab-btn { flex: 1; padding: 0.75rem 1rem; border: none; background: transparent; color: var(--text-secondary); border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); font-weight: 500; }
.tab-btn.active { background: var(--bg-secondary); color: var(--text-primary); box-shadow: var(--shadow-sm); }
.auth-form { display: none; }
.auth-form.active { display: block; animation: fadeIn 0.3s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Forms */
.form-group { position: relative; margin-bottom: 1.5rem; }
.form-row .form-group { margin-bottom: 0; }
.form-group i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); z-index: 1; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.875rem 1rem; border: 2px solid var(--border-color); border-radius: var(--radius-md); font-size: 0.875rem; transition: var(--transition); background: var(--bg-secondary); font-family: inherit; -webkit-appearance: none; appearance: none; }
.form-group.has-icon input { padding-left: 2.75rem; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: #667eea; box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1); }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-group select { cursor: pointer; background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 0.75rem center; background-size: 1rem; padding-right: 2.5rem; }
.form-group small { display: block; margin-top: 0.5rem; color: var(--text-muted); font-size: 0.75rem; }
.toggle-password { position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); border: none; background: none; color: var(--text-muted); cursor: pointer; }

/* Form Row for side-by-side fields */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }

/* Buttons */
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 1.5rem; border: none; border-radius: var(--radius-md); font-size: 0.875rem; font-weight: 500; cursor: pointer; transition: var(--transition); text-decoration: none; white-space: nowrap; width: 100%; }
.btn-primary { background: var(--primary-gradient); color: white; box-shadow: var(--shadow-md); margin-top: 1rem; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-secondary { background: var(--bg-secondary); color: var(--text-primary); border: 2px solid var(--border-color); }
.btn-secondary:hover { background: var(--bg-tertiary); }
.btn-danger { background: var(--danger-gradient); color: white; box-shadow: var(--shadow-md); }
.btn-sm { padding: 0.625rem 1rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-link { background: none; border: none; color: #667eea; text-decoration: none; padding: 0.5rem; font-size: 0.875rem; cursor: pointer; width: auto; }
.btn-link:hover { text-decoration: underline; }
.forgot-password-section { text-align: center; margin-top: 1rem; }

/* Button Loading Spinner */
.btn .spinner { display: none; width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 1s linear infinite; }
.btn.loading .spinner { display: block; }
.btn.loading .btn-text { visibility: hidden; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Header */
.header { background: var(--bg-secondary); border-bottom: 1px solid var(--border-color); padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
.header-content { max-width: 1200px; margin: 0 auto; padding: 0 1rem; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-size: 1.25rem; font-weight: 700; text-decoration: none; color: var(--text-primary); }
.logo i { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-size: 1.5rem; }
.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.25rem; cursor: pointer; }
.mobile-menu { display: none; background: var(--bg-secondary); padding: 1rem; }
.mobile-menu.active { display: flex; flex-direction: column; gap: 0.5rem; }
.sync-status { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 0.875rem; }
.sync-status.syncing i { animation: spin 1s linear infinite; }
.sync-status.error { color: #ef4444; }

/* Main Content & Sidebar */
.main-content {
    /* --- FIX: Significantly increased max-width for a wider dashboard layout --- */
    max-width: 1600px;
    margin: 0 auto;
    padding: 2rem 1rem;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}
.sidebar { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 1.5rem; height: fit-content; box-shadow: var(--shadow-md); position: sticky; top: 100px; max-height: calc(100vh - 120px); overflow-y: auto; }
.search-container { position: relative; margin-bottom: 2rem; }
.search-container i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.search-container input { width: 100%; padding: 0.75rem 1rem 0.75rem 2.5rem; }
.add-password-btn-top { width: 100%; margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border-color); }
.sidebar-section { margin-bottom: 2rem; }
.sidebar-section h3 { font-size: 0.875rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; margin-bottom: 1rem; }
.add-folder-btn, .add-category-btn { width: 100%; margin-bottom: 1rem; }
.folder-item, .category-item { display: flex; align-items: center; justify-content: space-between; border-radius: var(--radius-md); transition: var(--transition); margin-bottom: 0.25rem; cursor: pointer; }
.folder-item:hover, .category-item:hover { background: var(--bg-tertiary); }
.folder-item.active, .category-item.active { background: var(--primary-gradient); color: white; }
.folder-content, .category-content { display: flex; align-items: center; gap: 0.75rem; flex: 1; padding: 0.75rem; }
.folder-actions, .category-actions { display: flex; opacity: 0; transition: var(--transition); padding-right: 0.75rem; }
.folder-item:hover .folder-actions, .category-item:hover .category-actions, .folder-item.active .folder-actions, .category-item.active .category-actions { opacity: 1; }
.folder-toggle, .folder-action-btn, .category-action-btn { padding: 0.25rem; border: none; background: rgba(0,0,0,0.05); color: inherit; border-radius: var(--radius-sm); cursor: pointer; }
.folder-toggle.expanded { transform: rotate(180deg); }
.folder-image-icon, .badge-image-icon { width: 20px; height: 20px; border-radius: var(--radius-sm); object-fit: cover; }
.count { margin-left: auto; background: rgba(0,0,0,0.05); padding: 0.25rem 0.5rem; border-radius: var(--radius-sm); font-size: 0.75rem; }
.folder-item.active .count, .category-item.active .count { background: rgba(255,255,255,0.2); }

/* Password List */
.password-list-section { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow-md); }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; }
.view-options { display: flex; gap: 0.5rem; }
.view-btn { padding: 0.5rem; border: none; background: var(--bg-tertiary); color: var(--text-muted); border-radius: var(--radius-sm); cursor: pointer; width: 40px; height: 40px; }
.view-btn.active { background: var(--primary-gradient); color: white; }
.password-container { display: grid; gap: 1rem; }
.password-container.grid-view { grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); }
.password-container.list-view { grid-template-columns: 1fr; }
.password-card { background: var(--bg-secondary); border: 2px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.5rem; transition: var(--transition); position: relative; }
.password-card:hover { border-color: #667eea; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.password-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1rem; }
.password-title { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.password-title i { font-size: 1.25rem; }
.password-title h3 { font-size: 1.125rem; font-weight: 600; }
.password-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.folder-badge, .category-badge { font-size: 0.75rem; padding: 0.25rem 0.5rem; border-radius: var(--radius-sm); display: inline-flex; align-items: center; gap: 0.25rem; }
.password-card-actions { display: flex; gap: 0.5rem; }
.icon-btn { padding: 0.5rem; border: none; background: var(--bg-tertiary); color: var(--text-muted); border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); }
.icon-btn:hover { background: var(--primary-gradient); color: white; }
.password-field { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.password-field .label { font-size: 0.875rem; color: var(--text-secondary); min-width: 80px; }
.password-field .value { flex: 1; font-size: 0.875rem; padding: 0.5rem 0.75rem; background: var(--bg-tertiary); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: space-between; word-break: break-all; }
.password-actions { display: flex; gap: 0.25rem; }
.show-password-btn, .copy-btn { padding: 0.25rem; border: none; background: none; color: var(--text-muted); cursor: pointer; }
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-secondary); }
.empty-state i { font-size: 4rem; margin-bottom: 1rem; }

/* Modals */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000; backdrop-filter: blur(4px); overflow-y: auto; }
.modal.active { display: flex; align-items: center; justify-content: center; padding: 2rem; }
.modal-content { background: var(--bg-secondary); border-radius: var(--radius-xl); max-width: 600px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-xl); animation: modalSlideUp 0.3s ease-out; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1.5rem 2rem; border-bottom: 1px solid var(--border-color); }
.close-btn { background: none; border: none; font-size: 1.25rem; cursor: pointer; }
.password-form, .folder-form, .category-form, .password-reset-form, .settings-content { padding: 2rem; }
.password-input-group { display: flex; gap: 0.5rem; }
.password-input-group input { flex: 1; }
.password-input-group .btn { width: auto; }
.custom-fields-section, .custom-passwords-section { margin: 2rem 0; padding: 1rem; background: var(--bg-tertiary); border-radius: var(--radius-md); }
.custom-field, .custom-password { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; align-items: end; }
.custom-field .form-group, .custom-password .form-group { flex: 1; margin: 0; }
.remove-field, .remove-password { padding: 0.5rem; border: none; background: var(--danger-gradient); color: white; border-radius: var(--radius-sm); cursor: pointer; height: fit-content; }
.modal-actions { display: flex; gap: 1rem; justify-content: flex-end; padding-top: 1rem; border-top: 1px solid var(--border-color); }
.reset-info { background: var(--bg-tertiary); padding: 1rem; border-radius: var(--radius-md); margin-bottom: 1.5rem; border-left: 4px solid #f59e0b; }
.icon-selector { margin: 1.5rem 0; }
.icon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(45px, 1fr)); gap: 0.75rem; }
.icon-option, .category-icon-option { display: flex; align-items: center; justify-content: center; width: 45px; height: 45px; border: 2px solid var(--border-color); border-radius: var(--radius-md); cursor: pointer; transition: var(--transition); }
.icon-option:hover, .category-icon-option:hover { border-color: #667eea; }
.icon-option.selected, .category-icon-option.selected { border-color: #667eea; background: #667eea; color: white; }
.icon-option i, .category-icon-option i { font-size: 1.25rem; }
.icon-option.selected i, .category-icon-option.selected i { color: white !important; }
.security-question-display { font-weight: 600; background-color: var(--bg-tertiary); padding: 0.75rem; border-radius: var(--radius-md); border: 1px solid var(--border-color); }

/* Context Menu */
.context-menu { position: fixed; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); z-index: 1001; min-width: 160px; overflow: hidden; animation: contextMenuSlideIn 0.2s ease-out; }
@keyframes contextMenuSlideIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.context-menu-item { padding: 0.75rem 1rem; cursor: pointer; transition: var(--transition); font-size: 0.875rem; }
.context-menu-item:hover { background: var(--bg-tertiary); }
.context-menu-item.danger { color: #ef4444; }
.context-menu-item.danger:hover { background: #fef2f2; }

/* Toast Notifications */
.toast-container { position: fixed; top: 2rem; right: 2rem; z-index: 2000; }
.toast { background: var(--bg-secondary); border-radius: var(--radius-md); padding: 1rem 1.5rem; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 0.75rem; min-width: 300px; animation: toastSlideIn 0.3s ease-out; border-left: 4px solid; }
@keyframes toastSlideIn { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }
.toast.success { border-color: #10b981; }
.toast.error { border-color: #ef4444; }
.toast.info { border-color: #3b82f6; }

/* Drag and Drop */
.sortable-ghost { opacity: 0.5; background: #667eea; }
.sortable-chosen { cursor: grabbing; }

/* Responsive */
@media (min-width: 768px) {
    .login-container {
        max-width: 600px; 
        padding: clamp(2rem, 5vw, 3rem);
    }
}
@media (max-width: 768px) {
    .main-content { grid-template-columns: 1fr; }
    .sidebar { position: static; order: 2; }
    .password-list-section { order: 1; }
    .header-actions .btn-text { display: none; }
    .header-actions { display: none; }
    .mobile-menu-btn { display: block; }
    .form-row { grid-template-columns: 1fr; gap: 0; margin-bottom: 0; }
    .form-row .form-group { margin-bottom: 1.5rem; }
    .modal.active { padding: 1rem; align-items: flex-start; }
    .modal-content { margin-top: 2rem; }
    .password-container.grid-view { grid-template-columns: 1fr; }
}