/* ==============================
   Base - 디자인 시스템
   노래광장 v2.0 — Dark Cinematic + Gold
   ============================== */

:root {
    /* 골드 */
    --gold: #C9A96E;
    --gold-light: #DFC08A;
    --gold-dark: #A68B52;
    --gold-glow: rgba(201, 169, 110, 0.15);

    /* 배경 — 깊은 블랙 */
    --bg: #0A0A0A;
    --bg-card: #111111;
    --bg-elevated: #161616;
    --bg-subtle: #0E0E0E;

    /* 텍스트 */
    --text: #E5E5E5;
    --text-muted: #777777;
    --text-white: #FFFFFF;

    /* 보더 */
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(201, 169, 110, 0.3);

    /* 시스템 */
    --font: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, sans-serif;
    --max-width: 1100px;
    --header-height: 72px;
    --radius: 4px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--gold-light);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ---- 레이아웃 ---- */
.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* ---- 섹션 헤더 ---- */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2rem;
    font-weight: 300;
    color: var(--text-white);
    letter-spacing: 2px;
    margin-bottom: 0;
    text-align: center;
}

.section-title strong {
    font-weight: 700;
    color: var(--gold);
}

/* ---- 버튼 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s;
    border: none;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--gold);
    color: #0A0A0A;
    border-radius: var(--radius);
}

.btn-primary:hover {
    background: var(--gold-light);
    color: #0A0A0A;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.btn-lg {
    padding: 20px 52px;
    font-size: 0.9rem;
}

/* ---- 구분선 ---- */
.line {
    width: 40px;
    height: 1px;
    background: var(--gold);
    margin: 20px auto 0;
}