/* CSS Reset & Variable Definitions */
:root {
    /* Fonts */
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Transition speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* Dark Theme Variables (Default) */
.dark-theme {
    --bg-app: #070a13;
    --bg-gradient: radial-gradient(circle at top, #0f1629 0%, #070a13 100%);
    --bg-card: rgba(20, 26, 46, 0.65);
    --bg-card-hover: rgba(26, 34, 60, 0.8);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(99, 102, 241, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --input-bg: #0b0f19;
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus-bg: #0e1424;
    
    /* Accents & States */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-glow: rgba(239, 68, 68, 0.2);
    --success: #10b981;
    
    /* Shadows */
    --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.15);
    
    /* Blur effect */
    --backdrop-blur: blur(12px);
    
    /* Theme Toggle Switcher slider position */
    --slider-translate: 28px;
}

/* Light Theme Variables */
.light-theme {
    --bg-app: #edf2f7;
    --bg-gradient: radial-gradient(circle at top, #f8fafc 0%, #cbd5e1 100%);
    --bg-card: rgba(255, 255, 255, 0.94);
    --bg-card-hover: #ffffff;
    --border-color: rgba(79, 70, 229, 0.18);
    --border-hover: rgba(79, 70, 229, 0.55);
    --text-primary: #0f172a; /* Sleek high contrast slate-900 */
    --text-secondary: #334155; /* highly readable slate-700 */
    --text-muted: #57657a; /* readable slate-500 placeholder levels */
    --input-bg: #f8fafc;
    --input-border: #94a3b8; /* darker input outline for accessibility */
    --input-focus-bg: #ffffff;
    
    /* Accents & States */
    --primary: #4f46e5;
    --primary-hover: #3730a3;
    --primary-glow: rgba(79, 70, 229, 0.12);
    --gradient-accent: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --danger-glow: rgba(220, 38, 38, 0.15);
    --success: #059669;
    
    /* Shadows */
    --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 25px rgba(79, 70, 229, 0.08);
    
    /* Blur effect */
    --backdrop-blur: blur(8px);
    
    /* Theme Toggle Switcher slider position */
    --slider-translate: 2px;
}

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

body {
    font-family: var(--font-primary);
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
    transition: background var(--transition-slow), color var(--transition-normal);
}

/* Background Blur Lights */
.bg-blur {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: var(--radius-full);
    filter: blur(120px);
    z-index: 0;
    pointer-events: none;
    opacity: 0.12;
    transition: opacity var(--transition-slow);
}

.bg-blur-1 {
    top: -100px;
    left: -100px;
    background: #6366f1;
}

.bg-blur-2 {
    bottom: -100px;
    right: -100px;
    background: #a855f7;
}

.light-theme .bg-blur {
    opacity: 0.06;
}

/* App Wrapper Container */
.app-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    position: relative;
    z-index: 1;
}

/* Header Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--gradient-accent);
    color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.25);
    animation: pulseGlow 3s infinite alternate;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--input-bg);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.danger-text {
    color: var(--danger) !important;
}
.danger-text:hover {
    background: var(--danger-glow) !important;
    color: var(--danger-hover) !important;
}

.logo-area h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-area h1 span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Theme Toggle Button Style */
.theme-toggle-btn {
    position: relative;
    width: 58px;
    height: 32px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
    color: var(--text-secondary);
    transition: background var(--transition-normal), border var(--transition-normal);
}

.theme-toggle-btn:hover {
    border-color: var(--primary);
}

.theme-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    width: 20px;
    height: 20px;
    pointer-events: none;
    transition: color var(--transition-normal);
}

.dark-theme .moon-icon {
    color: #a855f7;
}

.light-theme .sun-icon {
    color: #eab308;
}

.toggle-slider {
    position: absolute;
    top: 3px;
    left: 2px;
    width: 24px;
    height: 24px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    z-index: 1;
    transform: translateX(var(--slider-translate));
    transition: transform var(--transition-normal) cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Main Content Workspace Layout */
.app-main {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: stretch;
    padding-bottom: 80px; /* Space for bottom nav */
}

/* Login specific layout */
.login-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}
.card-login {
    width: 100%;
    max-width: 400px;
}
.text-center {
    text-align: center;
}

/* General Card Design */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-card);
    transition: border var(--transition-normal), background var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

.card-header {
    margin-bottom: 25px;
}

.card-header h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Input Fields Design */
.input-group {
    margin-bottom: 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    pointer-events: none;
    transition: color var(--transition-normal);
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    font-size: 15px;
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    outline: none;
}

.input-wrapper input:focus {
    border-color: var(--primary);
    background: var(--input-focus-bg);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.input-wrapper input:focus + .input-icon,
.input-wrapper input:focus ~ .input-icon {
    color: var(--primary);
}

/* Show/Hide password toggle and internal button actions */
.input-action-btn {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.input-action-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.light-theme .input-action-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.btn-text-action {
    background: none;
    border: none;
    font-size: 13px;
    font-family: var(--font-primary);
    color: var(--primary);
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.btn-text-action:hover {
    color: var(--text-primary);
    background: var(--primary-glow);
}

/* Button UI Components */
.btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-primary);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-accent);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Password List Header row features */
.list-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.badge {
    background: var(--primary-glow);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all var(--transition-normal);
}

/* Search bar styling */
.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.search-wrapper input {
    width: 100%;
    padding: 10px 40px 10px 40px;
    font-size: 14px;
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    outline: none;
}

.search-wrapper input:focus {
    border-color: var(--primary);
    background: var(--input-focus-bg);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.clear-btn {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: var(--radius-full);
}

.clear-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.light-theme .clear-btn:hover {
    background: rgba(0, 0, 0, 0.08);
}

/* Scrollable Passwords list container */
.passwords-container {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 5px;
}

.passwords-container::-webkit-scrollbar {
    width: 6px;
}

.passwords-container::-webkit-scrollbar-track {
    background: transparent;
}

.passwords-container::-webkit-scrollbar-thumb {
    background: var(--input-border);
    border-radius: 4px;
}

.passwords-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Empty State / No Results styling */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 50px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    width: 80px;
    height: 80px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.empty-state h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 13px;
    line-height: 1.6;
    max-width: 320px;
}

/* Password entries list structure */
.password-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.password-item {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-normal);
    animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1) forwards;
}

.password-item:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    background: var(--bg-card-hover);
}

.light-theme .password-item:hover {
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.05);
}

.pwd-details {
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow: hidden;
    padding-right: 15px;
    flex: 1;
    min-width: 0;
}

.pwd-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.pwd-val-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pwd-masked {
    font-family: monospace;
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

.pwd-visible {
    font-family: monospace;
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.pwd-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Action items inside list */
.action-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
    background: var(--primary-glow);
}

.action-btn.delete-btn:hover {
    color: #ffffff;
    background: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 4px 10px var(--danger-glow);
}

/* Toast Alerts Component Styling */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.toast {
    background: var(--input-focus-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 250px;
    backdrop-filter: var(--backdrop-blur);
    animation: toastSlideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.25) forwards,
               toastFadeOut 0.3s cubic-bezier(0.175, 0.885, 0.32, 1) 3.5s forwards;
    border-left: 4px solid var(--primary);
}

.light-theme .toast {
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-danger {
    border-left-color: var(--danger);
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-danger .toast-icon {
    color: var(--danger);
}

.toast-message {
    font-size: 13.5px;
    font-weight: 500;
}

/* Bottom Credit */
.app-footer-credit {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
}

.app-footer-credit code {
    background: var(--input-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-secondary);
}

/* Utility hiding class */
.hidden {
    display: none !important;
}

/* Keyframes & Animations */
@keyframes pulseGlow {
    0% {
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
    }
    100% {
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.45), 0 0 10px rgba(168, 85, 247, 0.25);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes toastFadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Tab Views */
.tab-content {
    animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1) forwards;
}

/* Settings List */
.settings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.setting-item {
    display: flex;
    align-items: center;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    gap: 16px;
}

.setting-item.clickable {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.setting-item.clickable:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.setting-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.setting-details {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.setting-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.setting-value {
    font-size: 13px;
    color: var(--text-muted);
}

/* Bottom Navigation (Floating Dock Style) */
.bottom-nav {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 400px;
    height: 64px;
    background: rgba(20, 26, 46, 0.85); /* Slightly darker/more opaque for contrast */
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 10px;
    z-index: 100;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.light-theme .bottom-nav {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-muted);
    text-decoration: none;
    flex: 1;
    height: 100%;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-item span {
    font-size: 11px;
    font-weight: 600;
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-item.active {
    color: var(--primary);
}

.nav-item.active .nav-icon {
    transform: translateY(-2px);
    color: var(--primary);
}

/* Hide header elements on mobile since they moved to settings */
@media (max-width: 600px) {
    .header-actions {
        display: none;
    }
    
    .app-container {
        padding: 20px 15px;
    }
}