@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;700&display=swap');

:root {
    --primary-color: #4a90e2;
    --secondary-color: #f5a623;
    --background-color: #f8f9fa;
    --text-color: #2d3436;
    --card-background: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 60px 20px;
    box-shadow: 0 4px 15px var(--shadow-color);
    position: relative;
}

header h1 {
    font-size: 2.5em;
    margin: 0;
    font-weight: 700;
}

header p {
    font-size: 1.2em;
    opacity: 0.9;
    margin-top: 10px;
}

.lang-switch {
    position: absolute;
    top: 20px;
    right: 20px;
}

.lang-switch button {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid white;
    color: white;
    padding: 5px 15px;
    cursor: pointer;
    border-radius: 20px;
    margin-left: 5px;
    transition: all 0.3s;
}

.lang-switch button.active {
    background: white;
    color: var(--primary-color);
    font-weight: bold;
}

main {
    max-width: 800px;
    margin: -40px auto 40px;
    padding: 0 20px;
}

.tips-container, .contact-container {
    background-color: var(--card-background);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.contact-container {
    margin-top: 40px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #2d3436;
}

input, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #dfe6e9;
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.glowing-button {
    width: 100%;
    padding: 15px;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: 1.1em;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.glowing-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
}

section {
    margin-bottom: 40px;
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-top: 0;
}

h3 {
    color: #2d3436;
    background: #f1f2f6;
    padding: 10px 15px;
    border-left: 5px solid var(--secondary-color);
    border-radius: 4px;
}

ul, ol {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

.guide {
    background: #fff9f1;
    border: 1px solid #ffeaa7;
    padding: 20px;
    border-radius: 8px;
}

.guide h3 {
    background: none;
    border: none;
    padding: 0;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

em {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: #636e72;
    font-weight: bold;
}

@media (max-width: 600px) {
    header h1 { font-size: 1.8em; }
    .tips-container { padding: 20px; }
    .lang-switch { position: static; margin-bottom: 20px; }
}