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

body {
    font-family: Tahoma, sans-serif;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #0f172a;
    min-height: 100vh;
    padding: 24px;
}

.container {
    max-width: 1450px;
    margin: 0 auto;
}

.header {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.header h1 {
    color: #fff;
    font-size: 30px;
    margin-bottom: 8px;
}

.header p {
    color: #cbd5e1;
    font-size: 14px;
}

.layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    align-items: start;
}

.left-panel {
    display: grid;
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.97);
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

.card h2 {
    font-size: 18px;
    margin-bottom: 18px;
    color: #0f172a;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field label {
    font-size: 13px;
    font-weight: bold;
    color: #334155;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    border-radius: 14px;
    padding: 12px 14px;
    font-size: 14px;
    outline: none;
    transition: 0.2s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: #3b82f6;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.right-panel {
    position: sticky;
    top: 24px;
}

.result-box textarea {
    min-height: 560px;
    resize: vertical;
    background: #0f172a;
    color: #e2e8f0;
    border: none;
    line-height: 1.9;
}

.actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 16px;
}

button {
    border: none;
    border-radius: 14px;
    padding: 14px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}

.btn-primary {
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
    background: #e2e8f0;
    color: #0f172a;
}

.btn-secondary:hover {
    background: #cbd5e1;
}

@media (max-width: 1100px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .right-panel {
        position: static;
    }
}

@media (max-width: 700px) {
    body {
        padding: 14px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .actions {
        grid-template-columns: 1fr;
    }

    .header h1 {
        font-size: 24px;
    }
}