/* 기본 설정 및 변수 */
:root {
    --bg-primary: #121420;
    --bg-secondary: #1A1B26;
    --bg-card: #1E2030;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    
    --accent-blue: #6A98F0;
    --accent-blue-transparent: rgba(106, 152, 240, 0.1);
    --accent-purple: #9D8DF1;
    --accent-purple-transparent: rgba(157, 141, 241, 0.1);
    --accent-pink: #F389B9;
    --accent-pink-transparent: rgba(243, 137, 185, 0.1);
    --accent-mint: #6CEAD4;
    --accent-mint-transparent: rgba(108, 234, 212, 0.1);
    
    --success: #72E5BE;
    --warning: #FFCB47;
    --error: #FF6B6B;
    
    --gradient-main: linear-gradient(135deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
    --gradient-button: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    --gradient-card: linear-gradient(135deg, rgba(106, 152, 240, 0.1), rgba(157, 141, 241, 0.1));
}

/* 기본 리셋 및 설정 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-blue) var(--bg-secondary);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 타이포그래피 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

h1 {
    font-size: 4rem;
    letter-spacing: -1px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 40px;
}

h3 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 20px;
}

h4 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-purple);
}

ul, ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

/* 기본 섹션 스타일 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background: var(--gradient-main);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-tertiary);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

/* 버튼 스타일 */
.btn {
    display: inline-block;
    padding: 12px 32px;
    background: var(--gradient-button);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(106, 152, 240, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
    font-size: 1rem;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-button);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
    transform: scaleX(-1);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(106, 152, 240, 0.4);
}

.btn:hover:before {
    opacity: 1;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--accent-blue-transparent);
    color: white;
    border-color: transparent;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-accent {
    background: linear-gradient(90deg, var(--accent-mint), var(--accent-blue));
    box-shadow: 0 4px 15px rgba(108, 234, 212, 0.3);
}

.btn-accent:before {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-mint));
}

.btn-accent:hover {
    box-shadow: 0 7px 20px rgba(108, 234, 212, 0.4);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

.contents {
	display: block;
	position:relative;
	padding:8vw 10vw;
}

.contents  .tit {
	font-size:3vw;
	font-weight:700;
	text-align:center;
}

.pre_cont {
	position:relative;
	white-space: pre-line;
	overflow-y: auto;
}