@font-face {
    font-family: 'Pretendard Variable';
    src: url('/fonts/PretendardVariable.woff2') format('woff2');
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: 'KoPub Batang Pro';
    src: url('/fonts/KoPubBatangPro-Light.woff2') format('woff2');
    font-weight: 300;
    font-display: swap;
}

@font-face {
    font-family: 'KoPub Batang Pro';
    src: url('/fonts/KoPubBatangPro-Medium.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'KoPub Batang Pro';
    src: url('/fonts/KoPubBatangPro-Bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}

:root {
    --color-primary: #301904;
    --color-primary-text: #fffbef;
    --color-nav-text: #221e08;
    --color-text-sub: #919191;
    --color-border: #baafa5;
    --color-nav-active: #634930;
    --bg-gradient: linear-gradient(179deg, #ffffff 1.18%, #e7e5df 114.48%);
}

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

body {
    font-family: 'Pretendard Variable', sans-serif;
    color: var(--color-nav-text);
    background: var(--bg-gradient);
    min-height: 100vh;
}

/* 헤더 */
.site-header {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 40px;
    height: 64px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-logo {
    width: 120px;
    height: 36px;
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.site-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.site-nav {
    display: flex;
    gap: 32px;
    list-style: none;
}

.site-nav a {
    text-decoration: none;
    color: var(--color-nav-text);
    font-size: 15px;
    font-weight: 500;
    font-family: 'KoPub Batang Pro', serif;
    padding-bottom: 4px;
}

.site-nav a.nav-active {
    border-bottom: 1.5px solid var(--color-nav-active);
    color: var(--color-nav-active);
}

.header-auth {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-self: end;
}

.header-auth .user-email {
    font-size: 14px;
    color: var(--color-text-sub);
}

.btn-login {
    padding: 8px 20px;
    background: var(--color-primary);
    color: var(--color-primary-text);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}

.btn-logout {
    padding: 8px 16px;
    background: transparent;
    color: var(--color-text-sub);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    font-family: inherit;
}

/* 공통 버튼 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: var(--color-primary);
    color: var(--color-primary-text);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: opacity 0.15s;
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: background 0.15s;
}

.btn-secondary:hover {
    background: rgba(48, 25, 4, 0.05);
}

/* 에러 페이지 — 홈 화면과 동일한 bg-main.png 배경, 헤더가 배경 내부에 위치 */
.error-page {
    min-height: 100vh;
    background-image: url('/images/bg-main.png');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
}

/* 에러 페이지 헤더 — 홈 화면(.main-page .site-header)과 동일하게 배경 투명 처리 */
.error-page .site-header {
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
}