/**
 * LifeLog - Main Application Styles
 * Modern, responsive design with CSS variables
 */

/* =====================================================
   CSS VARIABLES - Theme Configuration
   ===================================================== */
:root {
    /* Color Palette */
    --color-primary-50: #f0f9ff;
    --color-primary-100: #e0f2fe;
    --color-primary-200: #bae6fd;
    --color-primary-300: #7dd3fc;
    --color-primary-400: #38bdf8;
    --color-primary-500: #0ea5e9;
    --color-primary-600: #0284c7;
    --color-primary-700: #0369a1;
    --color-primary-800: #075985;
    --color-primary-900: #0c4a6e;
    
    /* Neutral Colors */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Layout */
    --sidebar-width: 16rem;
    --sidebar-collapsed-width: 4rem;
    --header-height: 4rem;
    --footer-height: 3.5rem;
    
    /* Spacing Scale (based on rem) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Z-Index Scale */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
    --z-toast: 700;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: var(--color-gray-900);
        --color-bg-secondary: var(--color-gray-800);
        --color-text: var(--color-gray-100);
        --color-text-secondary: var(--color-gray-400);
        --color-border: var(--color-gray-700);
    }
}

/* =====================================================
   BASE STYLES
   ===================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-100);
    min-height: 100vh;
    min-height: 100dvh;
}

/* Alpine.js cloak */
[x-cloak] { 
    display: none !important; 
}

/* =====================================================
   LAYOUT - App Shell
   ===================================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(135deg, #0a1628 0%, #0d1f3c 50%, #0f172a 100%);
    z-index: var(--z-fixed);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar.open {
    transform: translateX(0);
}

@media (min-width: 64em) {
    .sidebar {
        transform: translateX(0);
        position: sticky;
        height: 100vh;
        height: 100dvh;
    }
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    background-color: rgba(0, 0, 0, 0.1);
    min-height: var(--header-height);
    flex-shrink: 0;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: white;
}

.sidebar-logo-icon {
    font-size: var(--font-size-2xl);
}

.sidebar-logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: transparent;
    color: white;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.sidebar-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

@media (min-width: 64em) {
    .sidebar-close {
        display: none;
    }
}

/* Sidebar Toggle Button (unified for mobile and desktop) */
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.25);
    color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transform: scale(1.05);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--space-4) var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
}

.nav-link-icon,
.nav-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.nav-section {
    margin-top: var(--space-6);
}

.nav-section-title {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
}

@media (min-width: 64em) {
    .main-wrapper {
        /* Sidebar is sticky in flex container, no margin needed */
        width: 100%;
    }
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.user-info-compact,
.sidebar-user-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-lg);
    transition: background-color var(--transition-fast);
}

.sidebar-user-trigger:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-user-chevron {
    margin-left: auto;
    color: rgba(255, 255, 255, 0.6);
    transition: transform var(--transition-fast);
}

.sidebar-user-chevron.rotate {
    transform: rotate(180deg);
}

.sidebar-user-menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: transparent;
    border: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
}

.sidebar-menu-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.sidebar-menu-item-danger:hover {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

/* Sidebar Collapse Button */
.sidebar-collapse {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-collapse:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

@media (min-width: 64em) {
    .sidebar-collapse {
        display: flex;
    }
}

/* Collapsed Sidebar */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

/* Expand on hover when collapsed (desktop only) */
@media (min-width: 64em) {
    .sidebar.collapsed:hover {
        width: var(--sidebar-width);
    }
    
    .sidebar.collapsed:hover .sidebar-logo-text,
    .sidebar.collapsed:hover .nav-link span,
    .sidebar.collapsed:hover .nav-section-title,
    .sidebar.collapsed:hover .user-details,
    .sidebar.collapsed:hover .sidebar-logout-text {
        display: block;
    }
    
    .sidebar.collapsed:hover .sidebar-logo,
    .sidebar.collapsed:hover .nav-link,
    .sidebar.collapsed:hover .sidebar-user-info,
    .sidebar.collapsed:hover .sidebar-logout-btn {
        justify-content: flex-start;
    }
    
    .sidebar.collapsed:hover .nav-link {
        padding: var(--space-3) var(--space-4);
    }
    
    .sidebar.collapsed:hover .sidebar-collapse svg {
        transform: rotate(0deg);
    }
}

.sidebar.collapsed .sidebar-logo-text,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .user-details,
.sidebar.collapsed .sidebar-logout-text {
    display: none;
}

.sidebar.collapsed .sidebar-logo {
    justify-content: center;
}

.sidebar.collapsed .nav-link {
    justify-content: center;
    padding: var(--space-3);
}

.sidebar.collapsed .sidebar-user-info,
.sidebar.collapsed .sidebar-logout-btn {
    justify-content: center;
}

.sidebar.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

/* Sidebar User Info */
.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-2);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.sidebar-user-info:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Sidebar Logout */
.sidebar-logout-form {
    width: 100%;
}

.sidebar-logout-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2) var(--space-3);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
}

.sidebar-logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

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

.user-details .user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-details .user-role {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

/* Header */
.header,
.app-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: white;
    box-shadow: var(--shadow-sm);
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: var(--space-4);
}

.header-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    flex: 1;
}

@media (min-width: 48em) {
    .header,
    .app-header {
        padding: 0 var(--space-6);
    }
    
    .header-title {
        font-size: var(--font-size-xl);
    }
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: transparent;
    color: var(--color-gray-600);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-800);
}

/* Hide mobile menu button when sidebar is visible (desktop) */
@media (min-width: 64em) {
    .menu-toggle {
        display: none !important;
    }
}

.page-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
}

@media (min-width: 48em) {
    .page-title {
        font-size: var(--font-size-xl);
    }
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2);
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-lg);
    transition: background-color var(--transition-fast);
}

.user-menu-trigger:hover {
    background-color: var(--color-gray-100);
}

.user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    background-color: var(--color-primary-500);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-name {
    display: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

@media (min-width: 48em) {
    .user-name {
        display: block;
    }
}

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 12rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    z-index: var(--z-dropdown);
}

.user-menu-item {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    text-decoration: none;
    text-align: left;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.user-menu-item:hover {
    background-color: var(--color-gray-50);
}

.user-menu-divider {
    height: 1px;
    background-color: var(--color-gray-200);
    margin: var(--space-1) 0;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--space-4);
    width: 100%;
    max-width: 100%;
}

@media (min-width: 48em) {
    .main-content {
        padding: var(--space-6);
    }
}

@media (min-width: 80em) {
    .main-content {
        padding: var(--space-8);
    }
}

/* Footer */
.footer,
.app-footer {
    background-color: white;
    border-top: 1px solid var(--color-gray-200);
    padding: var(--space-4) var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

@media (min-width: 48em) {
    .footer,
    .app-footer {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* Sidebar Backdrop */
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.sidebar-backdrop.visible {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 64em) {
    .sidebar-backdrop {
        display: none;
    }
}

/* =====================================================
   COMPONENTS - Cards
   ===================================================== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-body {
    padding: var(--space-5);
}

@media (min-width: 48em) {
    .card-body {
        padding: var(--space-6);
    }
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--space-4);
}

/* =====================================================
   COMPONENTS - Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary-600);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-700);
}

.btn-secondary {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-gray-200);
}

.btn-ghost {
    background: transparent;
    color: var(--color-gray-600);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-gray-100);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
}

.btn-icon {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
}

/* =====================================================
   COMPONENTS - Form Elements
   ===================================================== */

/* Range Input (Sliders) */
input[type="range"],
.form-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 0.5rem;
    border-radius: var(--radius-full);
    background: var(--color-gray-300);
    outline: none;
    cursor: pointer;
    transition: background var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--radius-full);
    background: var(--color-primary-600);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--color-primary-700);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 1.5rem;
    height: 1.5rem;
    border: none;
    border-radius: var(--radius-full);
    background: var(--color-primary-600);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast);
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--color-primary-700);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transform: scale(1.1);
}

input[type="range"]::-moz-range-track {
    height: 0.5rem;
    border-radius: var(--radius-full);
    background: var(--color-gray-300);
}

.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--color-gray-800);
    background-color: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

.form-textarea {
    min-height: 6rem;
    resize: vertical;
}

.form-help {
    margin-top: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.form-error {
    margin-top: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-error);
}

/* =====================================================
   COMPONENTS - Grid System
   ===================================================== */
.grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 48em) {
    .grid {
        gap: var(--space-6);
    }
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (min-width: 48em) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 64em) {
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* =====================================================
   COMPONENTS - Stat Cards
   ===================================================== */
.stat-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.stat-icon.blue {
    background-color: var(--color-primary-100);
    color: var(--color-primary-600);
}

.stat-icon.green {
    background-color: #d1fae5;
    color: #059669;
}

.stat-icon.purple {
    background-color: #ede9fe;
    color: #7c3aed;
}

.stat-icon.orange {
    background-color: #ffedd5;
    color: #ea580c;
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-gray-800);
}

/* =====================================================
   COMPONENTS - Tags & Badges
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-primary {
    background-color: var(--color-primary-100);
    color: var(--color-primary-700);
}

.badge-success {
    background-color: #d1fae5;
    color: #047857;
}

.badge-warning {
    background-color: #fef3c7;
    color: #b45309;
}

.badge-danger {
    background-color: #fee2e2;
    color: #b91c1c;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-sm);
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
}

.tag-tracker {
    background-color: var(--color-primary-50);
    color: var(--color-primary-700);
}

.tag-person {
    background-color: #fef3c7;
    color: #b45309;
}

.tag-context {
    background-color: #dbeafe;
    color: #1d4ed8;
}

/* =====================================================
   COMPONENTS - Toast Notifications
   ===================================================== */
.toast-container {
    position: fixed;
    bottom: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-width: calc(100% - var(--space-8));
    width: 22rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideIn var(--transition-slow) ease;
}

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

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

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

.toast-info {
    border-left: 4px solid var(--color-info);
}

/* =====================================================
   COMPONENTS - Empty States
   ===================================================== */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-4);
}

.empty-state-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto var(--space-4);
    color: var(--color-gray-400);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
}

/* =====================================================
   COMPONENTS - Loading States
   ===================================================== */
.spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--color-gray-200);
    border-top-color: var(--color-primary-600);
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

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

/* =====================================================
   COMPONENTS - Tracker Tiles
   ===================================================== */
.tracker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
    gap: var(--space-3);
}

@media (min-width: 48em) {
    .tracker-grid {
        grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
        gap: var(--space-4);
    }
}

.tracker-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    text-align: center;
}

.tracker-tile:hover {
    border-color: var(--color-primary-200);
    box-shadow: var(--shadow-md);
}

.tracker-tile:active {
    transform: scale(0.98);
}

.tracker-tile-emoji {
    font-size: 2rem;
    margin-bottom: var(--space-2);
}

.tracker-tile-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-1);
}

.tracker-tile-meta {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* =====================================================
   COMPONENTS - Log Entry
   ===================================================== */
.log-entry {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.log-time {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-500);
    white-space: nowrap;
    flex-shrink: 0;
}

.log-content {
    flex: 1;
    min-width: 0;
}

.log-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.log-note {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.log-actions {
    display: flex;
    gap: var(--space-2);
    flex-shrink: 0;
}

/* =====================================================
   UTILITIES
   ===================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden { display: none; }

@media (min-width: 48em) {
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
    .md\:block { display: block; }
}

@media (min-width: 64em) {
    .lg\:flex { display: flex; }
    .lg\:hidden { display: none; }
}
/* =====================================================
   FINANCE SUMMARY STYLES
   ===================================================== */
.finance-stat {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.finance-stat:hover {
    background: var(--color-gray-100);
}

.finance-stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.finance-stat-content {
    flex: 1;
    min-width: 0;
}

.finance-stat-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.2;
}

.finance-stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-top: 0.125rem;
}

/* =====================================================
   PROFILE PAGE STYLES
   ===================================================== */
.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
    border-radius: var(--radius-xl);
    color: white;
    margin-bottom: var(--space-6);
}

.profile-avatar {
    width: 5rem;
    height: 5rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    flex-shrink: 0;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.profile-info {
    flex: 1;
}

.profile-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.profile-email {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.profile-role-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-2);
}

.profile-section {
    margin-bottom: var(--space-6);
}

.profile-section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.profile-form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 48em) {
    .profile-form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.profile-stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (min-width: 48em) {
    .profile-stat-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.profile-stat-card {
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: center;
}

.profile-stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary-600);
}

.profile-stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}


/* =====================================================
   PWA - Progressive Web App Styles
   ===================================================== */

/* Ensure html and body fill the viewport in standalone mode */
html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

/* Safe area insets for notched devices (iPhone X+) */
@supports (padding: env(safe-area-inset-top)) {
    html {
        /* Apply safe areas to the root element */
        padding-top: env(safe-area-inset-top);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-bottom: env(safe-area-inset-bottom);
    }
    
    .app-layout {
        min-height: 100%;
    }
    
    .sidebar {
        padding-top: calc(var(--space-4) + env(safe-area-inset-top));
        padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
        padding-left: env(safe-area-inset-left);
    }
    
    .main-content {
        padding-bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
    }
    
    /* Header needs safe area on top */
    .main-header {
        padding-top: env(safe-area-inset-top);
    }
}

/* Standalone mode adjustments (when installed as PWA) */
@media (display-mode: standalone) {
    html {
        /* iOS standalone mode - ensure full screen */
        height: 100vh;
        height: -webkit-fill-available;
    }
    
    body {
        min-height: 100vh;
        min-height: -webkit-fill-available;
        /* Prevent pull-to-refresh in standalone mode */
        overscroll-behavior-y: contain;
    }
    
    .app-layout {
        height: 100vh;
        height: -webkit-fill-available;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .pwa-hide-standalone {
        display: none !important;
    }
}

/* Fullscreen mode - additional overrides */
@media (display-mode: fullscreen) {
    html, body {
        height: 100vh;
        height: -webkit-fill-available;
    }
    
    body {
        overscroll-behavior-y: contain;
    }
}

/* Install banner/button */
.pwa-install-banner {
    position: fixed;
    bottom: var(--space-4);
    left: var(--space-4);
    right: var(--space-4);
    background: var(--color-primary-600);
    color: white;
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    z-index: var(--z-toast);
    animation: slideUp 0.3s ease;
}

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

.pwa-install-banner-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.pwa-install-banner-icon {
    font-size: 2rem;
}

.pwa-install-banner-text h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.pwa-install-banner-text p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.pwa-install-banner-actions {
    display: flex;
    gap: var(--space-2);
}

.pwa-install-btn {
    background: white;
    color: var(--color-primary-600);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.pwa-install-btn:hover {
    transform: scale(1.05);
}

.pwa-dismiss-btn {
    background: transparent;
    color: white;
    padding: var(--space-2);
    border: none;
    cursor: pointer;
    opacity: 0.7;
}

.pwa-dismiss-btn:hover {
    opacity: 1;
}

/* Offline indicator */
.offline-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-warning);
    color: var(--color-gray-900);
    text-align: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    z-index: var(--z-toast);
    display: none;
}

body.offline .offline-indicator {
    display: block;
}

body.offline .app-layout {
    padding-top: calc(2.5rem + env(safe-area-inset-top, 0px));
}

/* iOS install instructions modal */
.ios-install-modal {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    padding: var(--space-6);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    animation: slideUp 0.3s ease;
}

.ios-install-modal-arrow {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.ios-install-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.ios-install-step {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.ios-install-step-number {
    width: 2rem;
    height: 2rem;
    background: var(--color-primary-100);
    color: var(--color-primary-600);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

/* Touch-friendly tap targets */
@media (pointer: coarse) {
    .btn,
    .sidebar-link,
    .nav-link,
    button {
        min-height: 44px;
        min-width: 44px;
    }
    
    .tracker-grid .tracker-card {
        min-height: 80px;
    }
}

/* Disable text selection for app-like feel in PWA */
@media (display-mode: standalone) {
    .btn,
    .sidebar-link,
    .tracker-card,
    .nav-link {
        -webkit-user-select: none;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
    }
}

/* Update available notification */
.update-available {
    position: fixed;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-gray-800);
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: var(--z-toast);
}

.update-available button {
    background: var(--color-primary-500);
    color: white;
    border: none;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
}