/* TailwindCSS Imports */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@3.4.0/base.min.css');

/* CSS Variables - Color Palette */
:root {
    /* Primary Colors */
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #60A5FA;
    
    /* Secondary Colors */
    --secondary: #64748B;
    --secondary-dark: #475569;
    --secondary-light: #94A3B8;
    
    /* Status Colors */
    --success: #10B981;
    --success-dark: #059669;
    --success-light: #34D399;
    
    --danger: #EF4444;
    --danger-dark: #DC2626;
    --danger-light: #F87171;
    
    --warning: #F59E0B;
    --warning-dark: #D97706;
    --warning-light: #FBBF24;
    
    /* Neutral Colors */
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border: #E2E8F0;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Touch Target Size */
    --touch-target: 44px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Dashboard Cards */
.card {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

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

.card-header {
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    border-top: 1px solid var(--border);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* Summary Cards */
.summary-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.summary-card-title {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: var(--spacing-sm);
}

.summary-card-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.summary-card-subtitle {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Investment List Items */
.investment-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.investment-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.investment-info {
    flex: 1;
}

.investment-type {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.investment-amount {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.investment-value {
    text-align: right;
    margin-right: var(--spacing-md);
}

.investment-current-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.investment-unit-price {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.investment-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-target);
    min-width: var(--touch-target);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

/* Button Variants */
.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--success-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-warning:hover:not(:disabled) {
    background-color: var(--warning-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

/* Button Sizes */
.btn-sm {
    min-height: 36px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    min-height: 52px;
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-icon {
    min-width: var(--touch-target);
    padding: 0.75rem;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

.form-label-required::after {
    content: ' *';
    color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    min-height: var(--touch-target);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: var(--background);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--danger);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--danger);
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background-color: #D1FAE5;
    border-color: var(--success);
    color: #065F46;
}

.alert-danger {
    background-color: #FEE2E2;
    border-color: var(--danger);
    color: #991B1B;
}

.alert-warning {
    background-color: #FEF3C7;
    border-color: var(--warning);
    color: #92400E;
}

.alert-info {
    background-color: #DBEAFE;
    border-color: var(--primary);
    color: #1E40AF;
}

/* Navigation */
.nav {
    background-color: var(--surface);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    min-height: var(--touch-target);
    padding: 0.5rem 1rem;
    font-size: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
    background-color: var(--background);
    color: var(--primary);
}

.nav-link.active {
    background-color: var(--primary);
    color: white;
}

.nav-toggle {
    display: none;
    min-height: var(--touch-target);
    min-width: var(--touch-target);
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

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

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

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

.w-full {
    width: 100%;
}

.hidden {
    display: none;
}

/* Responsive Breakpoints */

/* Tablet: 768px - 1024px */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .grid-cols-md-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-cols-md-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .investment-item {
        padding: var(--spacing-lg);
    }
    
    .nav-toggle {
        display: none;
    }
    
    .nav-menu {
        display: flex !important;
    }
    
    .hidden-md {
        display: none;
    }
    
    .block-md {
        display: block;
    }
}

/* Desktop: > 1024px */
@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    .grid-cols-lg-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-cols-lg-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .card {
        padding: var(--spacing-xl);
    }
    
    .summary-card {
        padding: var(--spacing-xl);
    }
    
    .hidden-lg {
        display: none;
    }
    
    .block-lg {
        display: block;
    }
}

/* Mobile: < 768px */
@media (max-width: 767px) {
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .summary-card-value {
        font-size: 1.5rem;
    }
    
    .investment-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .investment-value {
        width: 100%;
        text-align: left;
        margin-right: 0;
    }
    
    .investment-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--surface);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        width: 100%;
        justify-content: center;
    }
    
    .btn {
        width: 100%;
    }
    
    .btn-sm {
        width: auto;
    }
    
    .grid-cols-1 {
        grid-template-columns: 1fr;
    }
    
    .hidden-sm {
        display: none;
    }
    
    .block-sm {
        display: block;
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
    padding: var(--spacing-xl);
}

.modal-header {
    margin-bottom: var(--spacing-md);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.badge-success {
    background-color: var(--success-light);
    color: var(--success-dark);
}

.badge-danger {
    background-color: var(--danger-light);
    color: var(--danger-dark);
}

.badge-warning {
    background-color: var(--warning-light);
    color: var(--warning-dark);
}

/* Divider */
.divider {
    height: 1px;
    background-color: var(--border);
    margin: var(--spacing-md) 0;
}

/* Print Styles */
@media print {
    .nav,
    .btn,
    .investment-actions {
        display: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--border);
    }
}