/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets (768px and below) */
@media (max-width: 768px) {
    :root {
        --spacing-xs: 0.4rem;
        --spacing-sm: 0.8rem;
        --spacing-md: 1.2rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Navigation */
    .navbar {
        padding: var(--spacing-sm) 0;
    }

    .nav-brand {
        font-size: 1.2rem;
    }

    .nav-menu {
        gap: var(--spacing-md);
    }

    .nav-menu a {
        font-size: 0.9rem;
    }

    /* Hero Section */
    .hero-section {
        padding: var(--spacing-lg) 0;
        min-height: auto;
    }

    .hero-section h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-section p {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .upload-container {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) auto;
    }

    .upload-box {
        padding: var(--spacing-lg);
    }

    .upload-icon {
        font-size: 2rem;
    }

    .upload-box h3 {
        font-size: 1.2rem;
    }

    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
    }

    .btn-analyze {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    /* Results Section */
    .trade-details-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .detail-box {
        padding: var(--spacing-sm);
    }

    .detail-box .value {
        font-size: 1.1rem;
    }

    /* Signal Card */
    .signal-card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    .signal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .signal-header h2 {
        font-size: 1.5rem;
    }

    /* Score Circle */
    .ai-score-container {
        flex-direction: column;
        padding: var(--spacing-md);
    }

    .score-circle {
        width: 120px;
        height: 120px;
    }

    .score-circle::after {
        width: 110px;
        height: 110px;
    }

    .score-value {
        font-size: 2rem;
    }

    .score-label {
        font-size: 0.7rem;
    }

    /* Metrics */
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .metric {
        padding: var(--spacing-md);
    }

    /* Analysis Boxes */
    .analysis-details-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .analysis-box {
        padding: var(--spacing-md);
    }

    .analysis-box h3 {
        font-size: 1rem;
    }

    /* History Grid */
    .history-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: var(--spacing-md);
    }

    /* Action Buttons */
    .action-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .btn-secondary {
        width: 100%;
    }

    /* Footer */
    .footer {
        padding: var(--spacing-lg) 0;
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.3rem;
        --spacing-sm: 0.6rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.2rem;
        --spacing-xl: 1.5rem;
    }

    /* Navigation */
    .navbar {
        padding: var(--spacing-sm) 0;
    }

    .nav-brand {
        font-size: 1rem;
    }

    .nav-brand span {
        display: none;
    }

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

    .nav-menu a {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-xs);
    }

    /* Hero */
    .hero-section h1 {
        font-size: 1.5rem;
    }

    .hero-section p {
        font-size: 0.95rem;
    }

    .upload-container {
        padding: var(--spacing-lg);
    }

    .upload-box {
        padding: var(--spacing-lg);
    }

    .upload-icon {
        font-size: 1.5rem;
    }

    .upload-box h3 {
        font-size: 1rem;
    }

    .upload-box p {
        font-size: 0.9rem;
    }

    /* Trade Details */
    .trade-details-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .detail-box {
        padding: var(--spacing-sm);
    }

    .detail-box label {
        font-size: 0.8rem;
    }

    .detail-box .value {
        font-size: 1rem;
    }

    /* Signal */
    .signal-card {
        padding: var(--spacing-lg);
    }

    .signal-badge {
        min-width: 100px;
        font-size: 1rem;
    }

    .signal-header h2 {
        font-size: 1.3rem;
    }

    /* Score */
    .score-circle {
        width: 100px;
        height: 100px;
    }

    .score-circle::after {
        width: 90px;
        height: 90px;
    }

    .score-value {
        font-size: 1.6rem;
    }

    .score-label {
        font-size: 0.6rem;
    }

    .score-description {
        font-size: 0.9rem;
    }

    /* Metrics */
    .metric {
        padding: var(--spacing-md);
    }

    .metric-header {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Analysis */
    .analysis-box {
        padding: var(--spacing-md);
    }

    .analysis-box h3 {
        font-size: 0.95rem;
    }

    .analysis-content {
        font-size: 0.9rem;
    }

    /* History */
    .history-section h2 {
        font-size: 1.5rem;
    }

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

    /* Chart Preview */
    .chart-preview {
        padding: var(--spacing-md);
    }

    .chart-preview h2 {
        font-size: 1.2rem;
    }

    .chart-preview img {
        max-height: 300px;
    }

    /* Buttons */
    .btn {
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }

    /* Footer */
    .footer {
        padding: var(--spacing-md) 0;
    }

    .footer p {
        font-size: 0.85rem;
    }
}

/* Large Screens (1400px and above) */
@media (min-width: 1400px) {
    .analysis-details-container {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* Landscape Mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: var(--spacing-md) 0;
    }

    .hero-section h1 {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-section p {
        margin-bottom: var(--spacing-md);
    }

    .upload-container {
        padding: var(--spacing-md);
        margin: var(--spacing-md) auto;
    }

    .upload-box {
        padding: var(--spacing-md);
    }

    .btn-analyze {
        margin-top: var(--spacing-md);
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }

    .navbar,
    .action-buttons,
    .upload-container,
    .theme-toggle {
        display: none;
    }

    .results-section {
        padding: 0;
    }

    .signal-card,
    .analysis-box,
    .chart-preview {
        page-break-inside: avoid;
        border: 1px solid #ccc;
        box-shadow: none;
    }
}

/* Dark Mode (Default) */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, var(--bg-primary) 0%, #0f1735 100%);
        color: var(--text-primary);
    }
}

/* Light Mode */
body.light-mode {
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8ecf1;
    --text-primary: #1a1f3a;
    --text-secondary: #475569;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --border-color: rgba(100, 100, 100, 0.1);
}

body.light-mode .primary {
    --primary: #00a366;
    --accent: #0099cc;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}