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

:root {
    --primary: #0a2540;
    --secondary: #1a4d7a;
    --accent: #00d4aa;
    --warning: #ff6b6b;
    --bg-main: #f8fafb;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: 'Crimson Pro', serif;
    background: linear-gradient(135deg, #f8fafb 0%, #e8f0f5 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.subtitle {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    animation: fadeInUp 0.8s ease-out;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--accent);
}

.card-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

h2 {
    font-size: 1.75rem;
    color: var(--primary);
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input, textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-family: 'Crimson Pro', serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-main);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

button {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: white;
    border: none;
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(10, 37, 64, 0.3);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

button.analyzing {
    background: linear-gradient(135deg, var(--accent), var(--secondary));
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 0.5rem;
}

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

.chart-container {
    position: relative;
    height: 450px;
    margin: 2rem 0;
}

.full-width-card {
    grid-column: 1 / -1;
}

.forces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.force-card {
    background: linear-gradient(135deg, var(--bg-main) 0%, white 100%);
    border-radius: 12px;
    padding: 1.5rem;
    border-left: 4px solid var(--accent);
    transition: all 0.3s ease;
}

.force-card:hover {
    transform: translateX(4px);
    border-left-color: var(--secondary);
}

.force-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.force-score {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.score-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.score-bar {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    border-radius: 4px;
    transition: width 1s ease-out;
}

.force-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.error {
    background: #fee;
    border: 1px solid var(--warning);
    color: #c00;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

.api-info {
    background: linear-gradient(135deg, #e8f5ff 0%, #f0f9ff 100%);
    border: 1px solid #bae6fd;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.api-info strong {
    color: var(--secondary);
}

@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);
    }
}

.result-section {
    animation: fadeInUp 0.8s ease-out;
}

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

    h1 {
        font-size: 2.5rem;
    }

    .chart-container {
        height: 350px;
    }
}