/**
 * TradeFly Modern UI - Inspired by Stocktwits & Robinhood
 * Mobile-first, clean, professional design
 */

:root {
    /* Brand Colors */
    --primary-green: #00C805;
    --primary-red: #FF5000;
    --primary-blue: #0066FF;

    /* Background Colors */
    --bg-primary: #000000;
    --bg-secondary: #1C1C1E;
    --bg-tertiary: #2C2C2E;
    --bg-card: #1C1C1E;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #8E8E93;
    --text-tertiary: #636366;

    /* Accent Colors */
    --green: #00C805;
    --red: #FF5000;
    --blue: #0066FF;
    --yellow: #FFD60A;

    /* Border & Divider */
    --border-color: #38383A;
    --divider: #38383A;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Menlo', monospace;
}

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

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Modern Navigation Bar */
.nav-modern {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md);
}

.nav-modern .nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-modern .nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

/* Modern Watchlist - Stocktwits Style */
.watchlist-modern {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.watchlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.watchlist-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.btn-filter {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-filter:hover {
    background: var(--bg-tertiary);
}

/* Stock List Items - Stocktwits Style */
.stock-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.stock-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.2s;
}

.stock-item:last-child {
    border-bottom: none;
}

.stock-item:hover {
    background: var(--bg-secondary);
}

.stock-item:active {
    background: var(--bg-tertiary);
}

.stock-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stock-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.stock-details {
    flex: 1;
}

.stock-symbol {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

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

.stock-chart {
    width: 80px;
    height: 40px;
    margin: 0 var(--spacing-md);
}

.stock-chart svg {
    width: 100%;
    height: 100%;
}

.stock-price-info {
    text-align: right;
}

.stock-price {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.stock-change {
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
}

.stock-change.positive {
    color: var(--green);
}

.stock-change.negative {
    color: var(--red);
}

.stock-change-icon {
    font-size: 0.75rem;
}

/* Stock Detail Page - Robinhood Style */
.stock-detail {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.stock-detail-header {
    padding: var(--spacing-lg) 0;
}

.stock-detail-symbol {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.stock-detail-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.stock-detail-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stock-detail-change {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stock-detail-change.positive {
    color: var(--green);
}

.stock-detail-change.negative {
    color: var(--red);
}

.stock-detail-market-status {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* Chart Container */
.chart-container {
    background: var(--bg-card);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    border: 1px solid var(--border-color);
}

.chart-timeframes {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-sm);
}

.chart-timeframe-btn {
    flex: 1;
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
}

.chart-timeframe-btn.active {
    background: var(--bg-tertiary);
    color: var(--green);
}

.chart-timeframe-btn:hover {
    background: var(--bg-secondary);
}

/* Stats Grid */
.stats-grid-modern {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.stat-item {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

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

/* Options Section */
.options-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.option-item:hover {
    background: var(--bg-tertiary);
}

.option-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.option-type {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

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

.option-price-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.option-price-change {
    font-size: 0.875rem;
    font-weight: 600;
}

.option-price-change.positive {
    color: var(--green);
}

.option-price-change.negative {
    color: var(--red);
}

/* Trade Button - Robinhood Style */
.btn-trade {
    width: 100%;
    padding: 1rem;
    background: var(--green);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: var(--spacing-lg);
}

.btn-trade:hover {
    background: #00B004;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 200, 5, 0.3);
}

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

/* News Section */
.news-section {
    margin: var(--spacing-lg) 0;
}

.news-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    transition: background 0.2s;
}

.news-item:hover {
    background: var(--bg-secondary);
}

.news-content {
    flex: 1;
}

.news-source {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.news-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

.news-tickers {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.news-ticker {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
}

.news-ticker.positive {
    color: var(--green);
    background: rgba(0, 200, 5, 0.1);
}

.news-ticker.negative {
    color: var(--red);
    background: rgba(255, 80, 0, 0.1);
}

.news-image {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .stats-grid-modern {
        grid-template-columns: 1fr;
    }

    .stock-chart {
        display: none;
    }

    .stock-detail-price {
        font-size: 2rem;
    }
}

@media (min-width: 769px) {
    .stock-list {
        border-radius: 16px;
    }

    .stock-item {
        padding: var(--spacing-lg);
    }
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 8px;
}

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

/* Utility Classes */
.text-green {
    color: var(--green) !important;
}

.text-red {
    color: var(--red) !important;
}

.text-blue {
    color: var(--blue) !important;
}

.bg-green {
    background: rgba(0, 200, 5, 0.1) !important;
}

.bg-red {
    background: rgba(255, 80, 0, 0.1) !important;
}

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

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