/**
 * Base CSS - Shared styles for Nostradamus AI
 * Contains CSS variables, reset, and common utilities
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Background colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #16161e;
    --bg-card: #1a1a24;
    --bg-hover: #22222e;

    /* Text colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;

    /* Accent colors */
    --accent-green: #00ff88;
    --accent-green-dim: rgba(0, 255, 136, 0.15);
    --accent-red: #ff4466;
    --accent-red-dim: rgba(255, 68, 102, 0.15);
    --accent-blue: #00ccff;
    --accent-blue-dim: rgba(0, 204, 255, 0.15);
    --accent-yellow: #ffcc00;
    --accent-yellow-dim: rgba(255, 204, 0, 0.15);
    --accent-purple: #aa66ff;
    --accent-purple-dim: rgba(170, 102, 255, 0.15);
    --accent-orange: #ff8844;
    --accent-orange-dim: rgba(255, 136, 68, 0.15);
    --accent-cyan: #00ddcc;
    --accent-cyan-dim: rgba(0, 221, 204, 0.15);
    --accent-teal: #14b8a6;
    --accent-teal-dim: rgba(20, 184, 166, 0.15);

    /* Borders */
    --border-color: #2a2a3a;
    --border-primary: #2a2a3a;
    --border-secondary: #3a3a4a;

    /* Gradients */
    --gradient-green: linear-gradient(135deg, #00ff88 0%, #00cc66 100%);
    --gradient-red: linear-gradient(135deg, #ff4466 0%, #cc2244 100%);
    --gradient-purple: linear-gradient(135deg, #aa66ff 0%, #8844cc 100%);
    --gradient-blue: linear-gradient(135deg, #00ccff 0%, #0099cc 100%);
    --gradient-orange: linear-gradient(135deg, #ff8844 0%, #cc6622 100%);
    --gradient-cyan: linear-gradient(135deg, #00ddcc 0%, #00aa99 100%);
    --gradient-teal: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);

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

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* ==================== Background Effects ==================== */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(170, 102, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(170, 102, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 { top: -200px; right: -100px; background: var(--accent-purple); }
.bg-glow-2 { bottom: -200px; left: -100px; background: var(--accent-blue); }

/* Green theme glow */
.bg-glow-green-1 { top: -200px; right: -100px; background: var(--accent-green); }
.bg-glow-green-2 { bottom: -200px; left: -100px; background: var(--accent-cyan); }

/* Blue theme glow */
.bg-glow-blue-1 { top: -200px; right: -100px; background: var(--accent-blue); }
.bg-glow-blue-2 { bottom: -200px; left: -100px; background: var(--accent-purple); }

/* Teal theme glow */
.bg-glow-teal-1 { top: -200px; right: -100px; background: var(--accent-teal); }
.bg-glow-teal-2 { bottom: -200px; left: -100px; background: var(--accent-green); }

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
}

code, pre, .mono {
    font-family: 'JetBrains Mono', monospace;
}

/* ==================== Layout Utilities ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

main {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* ==================== Card Components ==================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition-normal);
}

.card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 20px rgba(170, 102, 255, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-purple);
}

/* ==================== Button Components ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(170, 102, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--accent-purple);
    background: var(--bg-card);
}

.btn-success {
    background: var(--gradient-green);
    color: var(--bg-primary);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==================== Form Elements ==================== */
.input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-normal);
}

.input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(170, 102, 255, 0.1);
}

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

/* ==================== Signal Indicators ==================== */
.signal-long, .signal-buy, .signal-bullish {
    color: var(--accent-green);
}

.signal-short, .signal-sell, .signal-bearish {
    color: var(--accent-red);
}

.signal-neutral, .signal-hold {
    color: var(--accent-yellow);
}

/* ==================== Time Ago Indicators ==================== */
.time-ago {
    font-size: 0.8rem;
    font-weight: 500;
}

.time-ago.fresh {
    color: var(--accent-green);
}

.time-ago.recent {
    color: var(--accent-cyan);
}

.time-ago.old {
    color: var(--accent-yellow);
}

.time-ago.stale {
    color: var(--accent-red);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-green {
    background: var(--accent-green-dim);
    color: var(--accent-green);
}

.badge-red {
    background: var(--accent-red-dim);
    color: var(--accent-red);
}

.badge-yellow {
    background: var(--accent-yellow-dim);
    color: var(--accent-yellow);
}

.badge-blue {
    background: var(--accent-blue-dim);
    color: var(--accent-blue);
}

.badge-purple {
    background: var(--accent-purple-dim);
    color: var(--accent-purple);
}

/* ==================== Loading States ==================== */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-hover) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

/* ==================== Toast Notifications ==================== */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    animation: slideIn 0.3s ease forwards;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    max-width: 400px;
    pointer-events: auto;
}

/* Support both naming conventions: .toast-success and .toast.success */
.toast-success,
.toast.success {
    border-color: var(--accent-green);
    background: #0d2818;
}

.toast-error,
.toast.error {
    border-color: var(--accent-red);
    background: #2d1419;
}

.toast-info,
.toast.info {
    border-color: var(--accent-blue);
    background: #0d1f2d;
}

.toast-warning,
.toast.warning {
    border-color: var(--accent-yellow);
    background: #2d2a0d;
}

/* Toast icon styling */
.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.toast.success .toast-icon,
.toast-success .toast-icon { color: var(--accent-green); }
.toast.error .toast-icon,
.toast-error .toast-icon { color: var(--accent-red); }
.toast.warning .toast-icon,
.toast-warning .toast-icon { color: var(--accent-yellow); }
.toast.info .toast-icon,
.toast-info .toast-icon { color: var(--accent-blue); }

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

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ==================== Responsive ==================== */

/* Tablet */
@media (max-width: 992px) {
    main {
        padding: 1.5rem;
    }

    .container {
        padding: 0 1.5rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    main {
        padding: 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .card {
        padding: 1rem;
        border-radius: var(--radius-md);
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    /* Stack flex items on mobile */
    .flex-mobile-col {
        flex-direction: column;
    }

    /* Adjust toast position for mobile */
    .toast-container {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
    }

    .toast {
        max-width: 100%;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    main {
        padding: 0.75rem;
    }

    .container {
        padding: 0 0.75rem;
    }

    .card {
        padding: 0.875rem;
    }

    .btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }

    /* Adjust toast for very small screens */
    .toast-container {
        bottom: 0.75rem;
        right: 0.75rem;
        left: 0.75rem;
    }

    .toast {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

/* Touch-friendly utilities */
@media (hover: none) and (pointer: coarse) {
    /* Increase touch targets */
    .btn, button, a.nav-link, .action-btn {
        min-height: 44px;
    }

    /* Remove hover effects that don't work well on touch */
    .card:hover {
        transform: none;
    }
}