/* =========================================
   1. Variables & Reset
   ========================================= */
:root {
    /* Branding & Primary Colors (Electric Blue) */
    --primary: rgba(0, 45, 246, 0.9);
    --primary-hover: rgba(0, 35, 200, 0.95);
    --primary-light: rgba(0, 45, 246, 0.1);
    
    /* Backgrounds (Ghost White & Pure White) */
    --bg-body: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-surface-hover: #F1F5F9;
    
    /* Typography (Slate Hierarchy) */
    --text-primary: #1E293B;   /* Dark Slate */
    --text-secondary: #475569; /* Medium Slate */
    --text-muted: #94A3B8;     /* Light Slate */
    
    /* Borders (Light Slate) */
    --border: #E2E8F0;
    --border-focus: rgba(0, 45, 246, 0.5);
    
    /* Semantic Colors */
    --success: #10B981; /* Emerald */
    --warning: #F59E0B; /* Amber */
    --danger: #EF4444;  /* Rose */
    
    /* Accents & Gradients */
    --gradient-primary: linear-gradient(135deg, rgba(0, 45, 246, 0.95), rgba(0, 35, 200, 0.95));
    --gradient-surface: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    
    /* Shadows & Effects - Enhanced */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 30px 60px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(0, 45, 246, 0.25), 0 0 60px rgba(0, 45, 246, 0.15);
}

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

body {
    font-family: 'Inter', 'Cairo', system-ui, sans-serif;
    background: var(--bg-body);
    color: var(--text-secondary);
    min-height: 100vh;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

/* =========================================
   2. Layout & Sidebar
   ========================================= */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    border-left: 2px solid var(--border);
    padding: 1.5rem;
    position: fixed;
    right: 0;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    margin-bottom: 2rem;
}

.sidebar-logo i {
    font-size: 2rem;
    color: var(--primary);
}

.sidebar-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 1rem;
    margin-bottom: 0.75rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
    transform: translateX(-2px);
}

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.nav-item i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.nav-item .badge {
    margin-right: auto;
    background: var(--danger);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    background: var(--bg-surface-hover);
    margin-bottom: 0.5rem;
    border: 1px solid var(--border);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.main-content {
    flex: 1;
    margin-right: 280px;
    padding: 3rem 2.5rem;
    background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
    min-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 2rem;
    border-radius: 1rem;
    border: 1.5px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.page-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

/* =========================================
   3. Components
   ========================================= */
/* Cards */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, rgba(255,255,255,0.5) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 45, 246, 0.1);
    transform: translateY(-2px);
}

.card:hover::before {
    opacity: 0.1;
}

.card-glass {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 45, 246, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 45, 246, 0.4);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    border-color: rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(0, 45, 246, 0.15);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #DC2626 100%);
    color: white;
    box-shadow: 0 10px 25px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(239, 68, 68, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover {
    background: rgba(0, 45, 246, 0.05);
    color: var(--primary);
    border-color: rgba(0, 45, 246, 0.2);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 0.5rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 
        inset 0 1px 2px rgba(0, 0, 0, 0.02),
        0 0 0 3px var(--primary-light),
        0 4px 12px rgba(0, 45, 246, 0.15);
    transform: translateY(-1px);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* Password Card */
.password-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.password-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    box-shadow: var(--shadow-sm);
    animation: card-fade-in 0.4s ease;
}

@keyframes card-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.password-card:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 45, 246, 0.15);
}

.password-card:active {
    transform: translateY(-2px);
}

.password-icon {
    width: 44px;
    height: 44px;
    border-radius: 0.5rem;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary);
    flex-shrink: 0;
}

.password-title {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.125rem;
    color: var(--text-primary);
}

.password-username {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    transition: all 0.2s ease;
}

.badge-private {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1.5px solid rgba(239, 68, 68, 0.3);
}

.badge-private:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.4);
}

.badge-shared {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1.5px solid rgba(16, 185, 129, 0.3);
}

.badge-shared:hover {
    background: rgba(16, 185, 129, 0.25);
    border-color: rgba(16, 185, 129, 0.4);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    border-radius: 1.25rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 100px; height: 100px;
    background: radial-gradient(circle, rgba(0, 45, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 45, 246, 0.2);
    border-color: rgba(0, 45, 246, 0.3);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 68px;
    height: 68px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.stat-icon.purple { 
    background: linear-gradient(135deg, var(--primary-light) 0%, rgba(0, 45, 246, 0.05) 100%);
    color: var(--primary);
}
.stat-icon.green { 
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
    color: var(--success);
}
.stat-icon.yellow { 
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0.05) 100%);
    color: var(--warning);
}
.stat-icon.red { 
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.05) 100%);
    color: var(--danger);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    text-transform: uppercase;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(6px);
    z-index: 1000;
    animation: fade-in 0.2s ease;
    opacity: 0;
    pointer-events: none;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-overlay {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border-radius: 1.5rem;
    width: 100%;
    max-width: 500px;
    padding: 2.5rem;
    position: relative;
    transform: scale(0.95) translateY(10px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--bg-body);
    color: var(--danger);
}

/* Toast */
.toast {
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0,0,0,0.05);
}

.toast.success { background: var(--accent); color: white; }
.toast.error { background: var(--danger); color: white; }
.toast.info { background: var(--primary); color: white; }

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =========================================
   Skeleton Loaders
   ========================================= */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-surface-hover) 0%,
        #f0f2f5 50%,
        var(--bg-surface-hover) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 0.5rem;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-radius: 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
}

.skeleton-icon {
    width: 50px;
    height: 50px;
    border-radius: 0.5rem;
    flex-shrink: 0;
}

.skeleton-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skeleton-text .title {
    height: 20px;
    width: 80%;
}

.skeleton-text .subtitle {
    height: 16px;
    width: 60%;
}

.skeleton-stat {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-radius: 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
}

.skeleton-stat .skeleton-icon {
    width: 60px;
    height: 60px;
}

.skeleton-stat .skeleton-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skeleton-stat .skeleton-value {
    height: 24px;
    width: 120px;
    border-radius: 0.4rem;
}

.skeleton-stat .skeleton-label {
    height: 14px;
    width: 100px;
}

/* =========================================
   Form Validation States
   ========================================= */
.form-input.error {
    border-color: var(--danger);
    background-color: rgba(239, 68, 68, 0.05);
}

.form-input.error:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input.success {
    border-color: var(--success);
    background-color: rgba(16, 185, 129, 0.05);
}

.form-input.success:focus {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-error {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    animation: slide-down 0.2s ease-out;
}

.form-error i {
    font-size: 1rem;
}

.form-success {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--success);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    animation: slide-down 0.2s ease-out;
}

.form-success i {
    font-size: 1rem;
}

@keyframes slide-down {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================================
   Enhanced Modal Animations
   ========================================= */
.modal-overlay {
    animation: fade-in 0.25s ease-out;
}

.modal-overlay.active .modal {
    animation: slide-up 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.confirmation-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 2.5rem;
}

.confirmation-icon.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.confirmation-icon.error,
.confirmation-icon.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.confirmation-icon.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.confirmation-icon.info {
    background: rgba(0, 45, 246, 0.1);
    color: var(--primary);
}

/* =========================================
   Enhanced Toast Notifications
   ========================================= */
.toast {
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    animation: toast-slide-in 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    backdrop-filter: blur(10px);
}

.toast i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.toast.success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.9), rgba(5, 150, 105, 0.9));
    color: white;
    border-color: rgba(16, 185, 129, 0.4);
}

.toast.error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.9), rgba(220, 38, 38, 0.9));
    color: white;
    border-color: rgba(239, 68, 68, 0.4);
}

.toast.warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.9), rgba(217, 119, 6, 0.9));
    color: white;
    border-color: rgba(245, 158, 11, 0.4);
}

.toast.info {
    background: linear-gradient(135deg, rgba(0, 45, 246, 0.9), rgba(0, 35, 200, 0.9));
    color: white;
    border-color: rgba(0, 45, 246, 0.4);
}

@keyframes toast-slide-in {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 300px;
}

.search-box .form-input {
    padding-right: 2.75rem !important;
}

.search-box i {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
    pointer-events: none;
}

/* =========================================
   4. Auth Pages (Login/Register)
   ========================================= */
body.auth-page {
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(0, 45, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(0, 35, 200, 0.1) 0%, transparent 50%),
        var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    width: 100%;
    z-index: 10;
}

.auth-container.login {
    max-width: 600px;
}

.auth-container.register {
    max-width: 700px;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo i {
    font-size: 4rem;
    color: #ffffff; /* White icon for better visibility */
    text-shadow: 0 0 20px rgba(0, 45, 246, 0.4);
}

.auth-logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 0.5rem;
    color: #ffffff; /* White text */
    letter-spacing: -0.025em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.auth-logo p {
    color: #cbd5e1; /* Light slate for subtitle */
    margin-top: 0.5rem;
}

.auth-card, .glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 8px 10px -6px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.auth-card {
    background: rgba(255, 255, 255, 0.85); /* Fallback/Override if needed, but shared above */
    animation: card-entry 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.glass-panel {
    position: relative;
    overflow: hidden;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

/* Auth Form specific overrides */
.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    z-index: 1;
}

.input-group .form-input {
    padding-left: 2.75rem;
}

.form-input.no-icon {
    padding-left: 1rem;
}

.toggle-password {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.2s;
}

.toggle-password:hover {
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Password Strength */
.password-strength {
    margin-top: 0.75rem;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.password-strength-bar {
    height: 100%;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 3px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
}

.strength-weak { width: 25%; background: linear-gradient(90deg, var(--danger), #DC2626); }
.strength-fair { width: 50%; background: linear-gradient(90deg, var(--warning), #FBBF24); }
.strength-good { width: 75%; background: linear-gradient(90deg, var(--success), #34D399); }
.strength-strong { width: 100%; background: linear-gradient(90deg, #22C55E, #16A34A); }

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: none;
}

.error-message.show { display: block; }

/* Responsive Utilities */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-right: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

.mobile-menu-btn {
    display: none;
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 99;
}

/* Utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

/* =========================================
   5. Advanced Auth UI
   ========================================= */

/* Animated Background */
body.auth-page {
    background-color: #0f172a; /* Darker base */
    background-image: 
        radial-gradient(at 0% 0%, rgba(0, 45, 246, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(239, 68, 68, 0.3) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(245, 158, 11, 0.3) 0px, transparent 50%);
    background-size: 200% 200%;
    animation: bg-pan 15s ease infinite;
    overflow: hidden;
    position: relative;
}

body.auth-page::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: 0;
    pointer-events: none;
}

@keyframes bg-pan {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Glassmorphism Card */
.auth-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 8px 10px -6px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    animation: card-entry 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

@keyframes card-entry {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Floating Labels */
.floating-label-group {
    position: relative;
    margin-bottom: 1.25rem;
}

.floating-label-group .form-input {
    height: 4.5rem;
    padding-top: 1.25rem;
    padding-bottom: 0.25rem;
    padding-left: 2.75rem !important; /* Space for icon */
}
.floating-label-group .form-input.no-icon {
    padding-left: 1rem !important;
}

.floating-label-group .floating-label {
    position: absolute;
    right: 2.75rem; /* Start after icon (RTL) or before? Wait, RTL. */
    top: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    transform-origin: right top;
}
/* RTL specific adjustment for floating label */
html[dir="rtl"] .floating-label-group .floating-label {
    right: 2.75rem;
    left: auto;
}
html[dir="rtl"] .floating-label-group .form-input.no-icon ~ .floating-label {
    right: 1rem;
}

/* Float State */
.floating-label-group .form-input:focus ~ .floating-label,
.floating-label-group .form-input:not(:placeholder-shown) ~ .floating-label {
    transform: translateY(-0.6rem) scale(0.85);
    color: var(--primary);
    font-weight: 600;
}

/* Icon Alignment fix for tall inputs */
.floating-label-group .input-icon {
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    transition: color 0.2s;
}

.floating-label-group .form-input:focus ~ .input-icon {
    color: var(--primary);
}

/* Staggered Animation for Children */
.auth-card > * {
    animation: fade-up 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
.auth-card > *:nth-child(1) { animation-delay: 0.1s; } /* Logo/Header handled separately usually, but here inside card? No logo is outside */
.auth-card form > *:nth-child(1) { animation-delay: 0.1s; }
.auth-card form > *:nth-child(2) { animation-delay: 0.15s; }
.auth-card form > *:nth-child(3) { animation-delay: 0.2s; }
.auth-card form > *:nth-child(4) { animation-delay: 0.25s; }
.auth-footer { animation-delay: 0.3s; }

@keyframes fade-up {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Button Pulse on Hover */
.btn-primary {
    position: relative;
    overflow: hidden;
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease-out, height 0.6s ease-out;
}
.btn-primary:active::after {
    width: 300px;
    height: 300px;
}