:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: #ffffff;
    --text-main: #1f2937;
    --border-color: #e5e7eb;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-container {
    padding: 20px;
    width: 100%;
    max-width: 480px;
}

.weather-card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid rgba(255,255,255,0.3);
}

/* Kachel-Design für Radio Buttons */
.options-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 1.5rem;
}

.option-label {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    width: 100%;
}

.option-label:hover {
    background-color: #f9fafb;
    border-color: #d1d5db;
}

.icon {
    font-size: 1.5rem;
    margin-right: 15px;
}

.text {
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-main);
}

/* Auswahl-Zustand */
input[type="radio"]:checked + .option-label {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 0 1px var(--primary);
}

input[type="radio"]:checked + .option-label .text {
    color: var(--primary);
}

/* Button Styling */
.btn-submit {
    width: 100%;
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.2s;
}

.btn-submit:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

/* Ergebnis-Bereich */
.alert-modern {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 500;
}

.alert-sonne { background: #fef3c7; color: #92400e; }
.alert-regen { background: #dbeafe; color: #1e40af; }
.alert-wolken { background: #f3f4f6; color: #374151; }

/* Kleine Animation */
.animated {
    animation: slideUp 0.4s ease-out;
}