static/style.css

/* Core Design Settings */
:root {
    --bg-dark: #0B0F19;
    --bg-card: rgba(17, 24, 39, 0.55);
    --border-color: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    
    /* Neon Glow Accents */
    --accent-cyan: #06B6D4;
    --accent-purple: #8B5CF6;
    --accent-green: #10B981;
    --accent-pink: #EC4899;
}

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

body {
    background-color: var(--bg-dark);
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Background floating glow blobs */
.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 0;
    opacity: 0.18;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-cyan), transparent);
    top: -50px;
    left: -100px;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-purple), transparent);
    bottom: -100px;
    right: -100px;
}

/* Main Layout Wrapper */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 100vh;
}

/* Header styling */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2rem;
    color: transparent;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
}

.logo-text h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.logo-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Glowing system status indicator */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 30px;
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 500;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
}

/* Left & Right side panels */
.left-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.right-panel {
    display: flex;
    flex-direction: column;
}

/* Card General Glassmorphic Styles */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), border-color 0.3s;
}

.glass-card:hover {
    border-color: var(--border-hover);
}

.card-header {
    margin-bottom: 1.75rem;
}

.card-header h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-header h2 i {
    color: var(--accent-cyan);
}

.card-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Metrics Cards (3-column layout) */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s;
}

.metric-card:hover {
    transform: translateY(-4px);
}

.metric-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

#metric-subscribers .card-icon {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
}

#metric-subs .card-icon {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

#metric-thresholds .card-icon {
    background: rgba(236, 72, 153, 0.15);
    color: var(--accent-pink);
}

.card-info h3 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.15rem;
}

.card-info .value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Quick Currency Converter Form */
.converter-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper .prefix {
    position: absolute;
    left: 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.converter-form input,
.converter-form select {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.85rem 1.25rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.converter-form input[type="number"] {
    padding-left: 2.25rem;
}

.converter-form input:focus,
.converter-form select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.converter-form select option {
    background-color: #111827;
    color: var(--text-primary);
}

/* Calculator Result Block */
.conversion-result {
    margin-top: 0.5rem;
    background: rgba(6, 182, 212, 0.08);
    border: 1px dashed rgba(6, 182, 212, 0.25);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.conversion-result .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.conversion-result .result-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.conversion-result .currency-tag {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Telegram Promo Card */
.telegram-promotion {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.6) 0%, rgba(17, 24, 39, 0.8) 100%);
    position: relative;
    overflow: hidden;
}

.telegram-promotion::after {
    content: '\f3fe';
    font-family: 'Font Awesome 6 Brands';
    position: absolute;
    right: -20px;
    bottom: -40px;
    font-size: 10rem;
    color: rgba(2, 132, 199, 0.05);
    pointer-events: none;
}

.promo-content h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.promo-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.75rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    outline: none;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #0284C7, #0369A1);
    color: white;
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
}

/* Live Forex Rates List */
.rates-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.rate-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.15rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.rate-row:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.currency-info {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.currency-info .flag {
    font-size: 2.25rem;
    line-height: 1;
}

.currency-info .code {
    display: block;
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
}

.currency-info .name {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.rate-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.rate-value .tag {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

/* Footer Styling */
.app-footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Responsive Rules */
@media (max-width: 968px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 580px) {
    .main-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
        padding: 1.5rem;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* Trend Chart Section Styling */
.trend-section {
    margin-top: 1rem;
}

.trend-chart-card {
    width: 100%;
}

.chart-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.chart-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chart-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.6rem 1.25rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    outline: none;
    cursor: pointer;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.chart-select:focus,
.chart-select:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.chart-select option {
    background-color: #111827;
    color: var(--text-primary);
}

/* Responsiveness for Chart Controls */
@media (max-width: 640px) {
    .chart-header-row {
        flex-direction: column;
        align-items: flex-start;
    }
    .chart-controls {
        width: 100%;
        justify-content: space-between;
    }
    .chart-select {
        flex: 1;
    }
}