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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f0f4ff 0%, #e6e9ff 100%);
    color: #1a1a2e;
    min-height: 100vh;
    padding: 20px 12px;
    line-height: 1.5;
}

.app-container {
    max-width: 900px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin: 0 0 2.5rem;
    padding: 1.5rem 0;
}

header h1 {
    font-size: 2.6rem;
    color: #2c3e50;
    margin-bottom: 0.4rem;
}

header p {
    color: #555;
    font-size: 1.1rem;
}

.filters-and-result {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.filters {
    flex: 1;
    min-width: 280px;
    background: white;
    border-radius: 16px;
    padding: 1.8rem 1.6rem;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    border: 1px solid #e8e8ff;
}

.filter-group {
    margin-bottom: 1.8rem;
}

.filter-group h3 {
    margin-bottom: 1rem;
    color: #34495e;
    font-size: 1.15rem;
}

.radio-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem 1.2rem;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    font-size: 1.05rem;
}

input[type="radio"],
input[type="checkbox"] {
    accent-color: #6366f1;
    width: 1.2rem;
    height: 1.2rem;
}

.styled-select {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 1.05rem;
    background: #fafafa;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='gray' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
}

.fetch-btn {
    width: 100%;
    padding: 1.1rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: white;
    background: #6366f1;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.18s ease;
    margin-top: 1.2rem;
}

.fetch-btn:hover {
    background: #4f46e5;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.fetch-btn:active {
    transform: translateY(0);
}

.result-area {
    flex: 2;
    min-width: 320px;
}

.activity-card {
    background: white;
    border-radius: 16px;
    padding: 2rem 1.8rem;
    min-height: 220px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.09);
    border: 1px solid #e8e8ff;
    position: relative;
    overflow: hidden;
}

.activity-card .placeholder {
    color: #94a3b8;
    text-align: center;
    padding: 3rem 1rem;
    font-size: 1.15rem;
}

.activity-card h2 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.6rem;
    line-height: 1.3;
}

.activity-card .type {
    display: inline-block;
    background: #e0e7ff;
    color: #6366f1;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.activity-card .price {
    font-size: 0.95rem;
    color: #64748b;
}

.activity-card .price strong {
    color: #334155;
}

/* Responsiv */
@media (max-width: 780px) {
    .filters-and-result {
        flex-direction: column;
        gap: 1.8rem;
    }
    
    header h1 {
        font-size: 2.2rem;
    }
}