:root {
    --bg-color: #050505;
    --surface-color: #111111;
    --primary-color: #00f0ff;
    --secondary-color: #7000ff;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --border-color: #222222;
    --danger-color: #ff3366;
    --success-color: #00ff66;
    --warning-color: #ffcc00;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

#app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo span {
    color: var(--primary-color);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav a:hover {
    color: var(--primary-color);
}

.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background-color: #00c0cc;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--text-primary);
}

.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.dashboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 6rem;
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border-color: #333;
}

.card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.text-highlight {
    color: var(--primary-color);
}

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

.trend.positive {
    color: var(--success-color);
}

.risk-matrix {
    margin-bottom: 6rem;
}

.risk-matrix h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    letter-spacing: -1px;
}

.matrix-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.supplier-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr 1fr;
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: 6px;
    align-items: center;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}

.supplier-row:hover {
    background-color: #1a1a1a;
}

.supplier-row.high-risk { border-left-color: var(--danger-color); }
.supplier-row.med-risk { border-left-color: var(--warning-color); }
.supplier-row.low-risk { border-left-color: var(--success-color); }

.supplier-row .id { font-family: 'JetBrains Mono', monospace; color: var(--text-secondary); font-size: 0.9rem; }
.supplier-row .name { font-weight: 600; }
.supplier-row .score { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; }

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.pulse {
    animation: subtlePulse 4s infinite;
}

@keyframes subtlePulse {
    0% { box-shadow: 0 0 0 rgba(0, 240, 255, 0); }
    50% { box-shadow: 0 0 20px rgba(0, 240, 255, 0.1); }
    100% { box-shadow: 0 0 0 rgba(0, 240, 255, 0); }
}