/* ===================================
   CSS Variables & Design Tokens
   =================================== */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);

    --bg-primary: #0f0f1e;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252540;
    --bg-card: rgba(255, 255, 255, 0.05);

    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;

    --border-color: rgba(255, 255, 255, 0.1);
    --hover-bg: rgba(255, 255, 255, 0.08);

    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 10s ease-in-out infinite;
}

@keyframes backgroundPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

/* ===================================
   Layout Components
   =================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Header
   =================================== */
/* ===================================
   Authentication Overlay
   =================================== */
.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 14, 0.98);
    backdrop-filter: blur(25px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

body.locked {
    overflow: hidden;
    pointer-events: none;
}

body.locked .auth-overlay {
    pointer-events: all;
}

.auth-overlay.hidden {
    display: none;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-card .logo {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.auth-card h2 {
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.auth-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.auth-card .form-group {
    margin-bottom: var(--spacing-md);
}

.auth-card input {
    text-align: center;
    font-size: 1.125rem;
    letter-spacing: 0.25rem;
}

.auth-footer {
    margin-top: var(--spacing-lg);
    font-size: 0.75rem !important;
    opacity: 0.6;
}

.w-full {
    width: 100%;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    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 var(--transition-slow), height var(--transition-slow);
}

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

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--hover-bg);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn svg {
    position: relative;
    z-index: 1;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* ===================================
   Animations
   =================================== */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.refreshing svg {
    animation: spin 1s linear infinite;
}

/* ===================================
   Main Content
   =================================== */
.main {
    padding: var(--spacing-xl) 0;
}

/* ===================================
   Portfolio Controls
   =================================== */
.portfolio-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.portfolio-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.portfolio-selector label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.portfolio-select {
    padding: 0.625rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    min-width: 200px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.portfolio-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* ===================================
   View Tabs
   =================================== */
.view-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    padding: 0.25rem;
    border-radius: var(--radius-md);
}

.tab-btn {
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.tab-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* ===================================
   View Content
   =================================== */
.view-content {
    display: block;
}

.view-content.hidden {
    display: none;
}

/* ===================================
   Table Actions
   =================================== */
.table-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.refresh-status {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-right: var(--spacing-xs);
}

.btn-icon.refreshing {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ===================================
   Comparison Grid & Visuals
   =================================== */
.comparison-visuals {
    margin-bottom: var(--spacing-xl);
}

.chart-container-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-box {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chart-box h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.chart-box canvas {
    flex: 1;
    max-width: 100%;
}

.comparison-grid {
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.comparison-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.comparison-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(255, 255, 255, 0.2);
}

.comparison-card.best {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.comparison-card.worst {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.comparison-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.comparison-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-badge {
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.comparison-badge.best {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.comparison-badge.worst {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.comparison-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.comparison-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.comparison-stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.comparison-stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-stat-value.positive {
    color: var(--success);
}

.comparison-stat-value.negative {
    color: var(--error);
}

.comparison-analysis {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.analysis-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

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

.risk-badge {
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.risk-very-high {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.risk-high {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.risk-medium {
    background: rgba(102, 126, 234, 0.2);
    color: #818cf8;
}

.risk-low {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.risk-n/a {
    background: rgba(156, 163, 175, 0.2);
    color: #9ca3af;
}

.analysis-suggestion {
    font-size: 0.875rem;
    color: var(--text-primary);
    line-height: 1.5;
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border-left: 3px solid #667eea;
}

.analysis-suggestion strong {
    color: #a5b4fc;
    display: block;
    margin-bottom: 0.25rem;
}


/* ===================================
   Summary Cards
   =================================== */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.summary-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.2);
}

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

.summary-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.summary-content {
    flex: 1;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.mt-large {
    margin-top: var(--spacing-lg);
}

.radio-group {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: 0.5rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.radio-label input[type="radio"] {
    accent-color: var(--primary-light);
    width: 1.1rem;
    height: 1.1rem;
}

.radio-label:hover {
    color: var(--text-primary);
}

.summary-percent {
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.summary-percent.positive {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.summary-percent.negative {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* ===================================
   Table Container
   =================================== */
.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: #ef4444;
    color: white;
}

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

/* ===================================
   Calendar View
   =================================== */
.calendar-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.calendar-legend {
    display: flex;
    gap: var(--spacing-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dot.positive {
    background: var(--success);
}

.dot.negative {
    background: var(--error);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.calendar-day {
    aspect-ratio: 1;
    background: var(--bg-secondary);
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 80px;
}

.calendar-day:hover {
    background: rgba(255, 255, 255, 0.05);
}

.calendar-day.today {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.calendar-day.empty {
    background: var(--bg-primary);
    cursor: default;
}

.day-number {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.day-gain {
    font-size: 0.75rem;
    font-weight: 700;
    text-align: right;
}

.day-gain.positive {
    color: var(--success);
}

.day-gain.negative {
    color: var(--error);
}

.calendar-details {
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.details-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

.details-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.detail-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.detail-portfolio {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.detail-stats {
    display: flex;
    justify-content: space-between;
}

.btn-danger-icon {
    color: #ef4444;
}

.btn-danger-icon:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.4);
}

.text-error {
    color: #ef4444;
}

.mb-medium {
    margin-bottom: var(--spacing-md);
}

.table-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.table-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.search-input {
    padding: 0.625rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    min-width: 250px;
    transition: all var(--transition-base);
}

.search-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

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

.table-wrapper {
    overflow-x: auto;
}

/* ===================================
   Portfolio Table
   =================================== */
.portfolio-table {
    width: 100%;
    border-collapse: collapse;
}

.portfolio-table thead {
    background: var(--bg-tertiary);
}

.portfolio-table th {
    padding: 1rem;
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portfolio-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.portfolio-table tbody tr:hover {
    background: var(--hover-bg);
}

.portfolio-table td {
    padding: 1rem;
    font-size: 0.95rem;
}

.portfolio-table .symbol {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.portfolio-table .gain {
    font-weight: 600;
}

.portfolio-table .gain.positive {
    color: var(--success);
}

.portfolio-table .gain.negative {
    color: var(--error);
}

/* Watchlist Expandable Rows */
.watchlist-row {
    cursor: pointer;
    transition: background var(--transition-fast);
}

.watchlist-row:hover {
    background: var(--hover-bg);
}

.watchlist-row.expanded {
    background: rgba(255, 255, 255, 0.05);
}

.details-row {
    background: rgba(0, 0, 0, 0.2);
}

.details-row.hidden {
    display: none;
}

.details-container {
    padding: var(--spacing-md);
    animation: fadeIn var(--transition-base);
}

.sub-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.sub-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.05);
}

.sub-table td {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
}

.sub-table tr:last-child td {
    border-bottom: none;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.portfolio-tag {
    background: rgba(102, 126, 234, 0.15);
    color: #a5b4fc;
    padding: 0.125rem 0.5rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.portfolio-tag.mt {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.gain-percent {
    font-size: 0.75rem;
    opacity: 0.8;
}

.current-price {
    font-weight: 700;
    color: var(--text-primary);
}

.portfolio-table .actions {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon.delete:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
    border-color: var(--error);
}

/* ===================================
   Empty State
   =================================== */
.empty-state {
    border: none !important;
}

.empty-state:hover {
    background: transparent !important;
}

.empty-state-content {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-state-content svg {
    margin: 0 auto var(--spacing-md);
}

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

.empty-state-content p {
    color: var(--text-secondary);
}

/* ===================================
   Modal
   =================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-slow);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.modal-close svg {
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* ===================================
   Forms
   =================================== */
form {
    padding: var(--spacing-md);
}

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

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

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

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

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-md);
}

/* ===================================
   File Upload
   =================================== */
.import-content {
    padding: var(--spacing-md);
}

.import-info {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.import-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.file-upload {
    margin-bottom: var(--spacing-md);
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    gap: var(--spacing-sm);
}

.file-upload-label:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.file-upload-label svg {
    color: var(--text-muted);
}

.file-upload-label span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.file-name {
    font-weight: 600;
    color: var(--text-primary) !important;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .nav {
        flex-direction: column;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .table-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        min-width: 100%;
    }

    .portfolio-table {
        font-size: 0.875rem;
    }

    .portfolio-table th,
    .portfolio-table td {
        padding: 0.75rem 0.5rem;
    }

    .summary-value {
        font-size: 1.5rem;
    }
}

/* ===================================
   Scrollbar Styling
   =================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}