:root {
    --bg-color: #0d0f14;
    --card-bg: rgba(23, 27, 34, 0.8);
    --primary: #4f46e5;
    --primary-glow: rgba(79, 70, 229, 0.4);
    --secondary: #06b6d4;
    --text-main: #f3f4f6;
    --text-dim: #9ca3af;
    --border: rgba(255, 255, 255, 0.1);
    --accent-red: #ef4444;
    --accent-green: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.15) 0px, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #818cf8, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.025em;
}

.status-badge {
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 9999px;
    color: var(--accent-green);
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 968px) {
    .grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-main);
}

.input-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

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

label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
}

input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    color: white;
    font-size: 1rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.result-card {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
    border-left: 4px solid var(--primary);
}

.result-main {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
    letter-spacing: -0.05em;
    transition: opacity 0.2s, transform 0.2s;
}

.result-main.updating {
    opacity: 0.5;
    transform: translateY(5px);
}

.result-main span {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-dim);
    margin-left: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.stat-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 1rem;
    border: 1px solid var(--border);
}

.stat-val {
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: 0.25rem;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 600;
}

.button-row {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn {
    flex: 1;
    padding: 1rem;
    border-radius: 0.75rem;
    border: none;
    color: white;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.primary-btn {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    box-shadow: 0 4px 15px var(--primary-glow);
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-dim);
}

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

.btn:active {
    transform: scale(0.98);
}

.btn:hover {
    opacity: 0.9;
}

.footer {
    padding: 4rem 0 2rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.875rem;
}