/* ============================================================
 * main.css — 전역 스타일
 * CSS 리셋 / :root Design Token / 타이포그래피 / 공통 유틸
 * camel_theme_01 v1.0.0
 * TRD § 6.1, § 6.2
 * ============================================================ */

/* ── 1. CSS 리셋 (Modern Normalize) ──────────────────────── */

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

html {
	font-size: 16px;
	scroll-behavior: smooth;
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	font-family: var(--font-primary);
	font-size: var(--font-size-base);
	line-height: var(--line-height-base);
	color: var(--color-text);
	background-color: var(--color-bg);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

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

a {
	color: inherit;
	text-decoration: none;
}

a:hover {
	text-decoration: none;
}

button,
input,
optgroup,
select,
textarea {
	font-family: inherit;
	font-size: 100%;
	line-height: 1.15;
	margin: 0;
}

button,
[type='button'],
[type='reset'],
[type='submit'] {
	-webkit-appearance: button;
	cursor: pointer;
}

ul,
ol {
	list-style: none;
	margin: 0;
	padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin: 0;
	font-weight: 700;
	line-height: 1.3;
	word-break: keep-all;
}

p {
	margin: 0;
	word-break: keep-all;
}

/* ── 2. CSS 커스텀 프로퍼티 (Design Token) ───────────────── */

:root {
	/* 내비게이션 (커스터마이저로 오버라이드) */
	--header-bg: #ffffff;
	--header-height: 80px;
	--header-height-sm: 60px;
	--nav-font-size: 16px;
	--nav-color: #1E3A5F;
	--nav-hover-color: #2E86AB;
	--nav-font-family: var(--font-primary);
	--nav-letter-spacing: 0em;
	--nav-item-spacing: 20px;

	/* 서브메뉴 */
	--sub-menu-bg: #ffffff;
	--sub-menu-color: #1A1A2E;
	--sub-menu-hover-color: #2E86AB;
	--sub-menu-font-size: 14px;
	--sub-menu-shadow: 0 8px 30px rgba(0, 0, 0, 0.10);

	/* 타이포그래피 */
	--font-primary: 'Noto Sans KR', sans-serif;
	--font-secondary: 'Noto Serif KR', serif;
	--font-mono: 'Courier New', monospace;
	--font-size-base: 16px;
	--line-height-base: 1.7;

	/* 색상 팔레트 */
	--color-primary: #1E3A5F;
	--color-accent: #2E86AB;
	--color-text: #1A1A2E;
	--color-text-muted: #6C7A89;
	--color-bg: #FFFFFF;
	--color-bg-alt: #F4F8FB;
	--color-border: #E0E0E0;
	--color-white: #ffffff;

	/* 레이아웃 */
	--container-max: 1280px;
	--container-padding: 0 24px;
	--section-padding: 80px 0;
	--section-padding-sm: 48px 0;

	/* 트랜지션 */
	--transition-fast: 0.2s ease;
	--transition-normal: 0.35s ease;
	--transition-slow: 0.6s ease;

	/* 그림자 */
	--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
	--shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
	--shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);

	/* 테두리 반경 */
	--radius-sm: 4px;
	--radius-md: 8px;
	--radius-lg: 16px;
	--radius-full: 9999px;

	/* Z-index */
	--z-header: 100;
	--z-dropdown: 200;
	--z-hamburger: 300;
	--z-modal: 400;
}

/* ── 3. 타이포그래피 ─────────────────────────────────────── */

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

/* ── 4. 공통 유틸리티 ───────────────────────────────────── */

/* 컨테이너 */
.container {
	max-width: var(--container-max);
	margin-left: auto;
	margin-right: auto;
	padding: var(--container-padding);
	width: 100%;
}

/* 스크린 리더 전용 */
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* 사이트 wrapper */
.site-wrapper {
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

.site-main {
	flex: 1;
}

/* 섹션 공통 패딩 */
.section-pad {
	padding: var(--section-padding);
}

/* 버튼 시스템 */
.camel-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5em;
	padding: 0.75em 1.75em;
	border: 2px solid transparent;
	border-radius: var(--radius-md);
	font-weight: 600;
	font-size: 1rem;
	line-height: 1;
	text-decoration: none;
	cursor: pointer;
	transition: background-color var(--transition-fast),
	            color var(--transition-fast),
	            border-color var(--transition-fast),
	            box-shadow var(--transition-fast);
	white-space: nowrap;
}

.camel-btn--primary {
	background-color: var(--color-primary);
	color: var(--color-white);
	border-color: var(--color-primary);
}
.camel-btn--primary:hover {
	background-color: var(--color-accent);
	border-color: var(--color-accent);
	color: var(--color-white);
}

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

.camel-btn--ghost {
	background-color: transparent;
	color: var(--color-primary);
	border-color: transparent;
}
.camel-btn--ghost:hover {
	background-color: var(--color-bg-alt);
}

/* 버튼 크기 */
.camel-btn--sm { padding: 0.5em 1em; font-size: 0.875rem; }
.camel-btn--md { padding: 0.75em 1.75em; font-size: 1rem; }
.camel-btn--lg { padding: 1em 2.5em; font-size: 1.125rem; }

/* 카드 그리드 */
.camel-card-grid {
	display: grid;
	grid-template-columns: repeat(var(--grid-cols, 3), 1fr);
	gap: var(--grid-gap, 24px);
}

/* 아이콘 박스 */
.camel-icon-box {
	padding: 2rem;
}
.camel-icon-box--center {
	text-align: center;
}
.camel-icon-box--left {
	text-align: left;
}
.camel-icon-box__icon {
	font-size: 2.5rem;
	color: var(--color-accent);
	margin-bottom: 1rem;
}
.camel-icon-box__title {
	font-size: 1.25rem;
	margin-bottom: 0.75rem;
}
.camel-icon-box__desc {
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

/* 카운터 */
.camel-counter {
	text-align: center;
	padding: 1.5rem;
}
.camel-counter__number {
	display: block;
	font-size: 3rem;
	font-weight: 900;
	color: var(--color-primary);
	line-height: 1;
}
.camel-counter__suffix {
	font-size: 1.5rem;
	color: var(--color-accent);
	font-weight: 700;
}
.camel-counter__label {
	margin-top: 0.5rem;
	color: var(--color-text-muted);
	font-size: 0.875rem;
}

/* 아코디언 */
.camel-accordion__item {
	border-bottom: 1px solid var(--color-border);
}
.camel-accordion__trigger {
	width: 100%;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1.25rem 0;
	background: none;
	border: none;
	font-size: 1rem;
	font-weight: 600;
	color: var(--color-text);
	cursor: pointer;
	text-align: left;
}
.camel-accordion__trigger[aria-expanded='true'] .camel-accordion__icon {
	transform: rotate(180deg);
}
.camel-accordion__icon {
	transition: transform var(--transition-fast);
	color: var(--color-accent);
}
.camel-accordion__panel {
	padding: 0 0 1.25rem;
	color: var(--color-text-muted);
	display: none;
}
.camel-accordion__panel[aria-hidden='false'] {
	display: block;
}

/* 탭 */
.camel-tab__nav {
	display: flex;
	gap: 0;
	border-bottom: 2px solid var(--color-border);
	margin-bottom: 2rem;
}
.camel-tab__btn {
	padding: 0.75rem 1.5rem;
	background: none;
	border: none;
	border-bottom: 2px solid transparent;
	margin-bottom: -2px;
	font-weight: 600;
	color: var(--color-text-muted);
	cursor: pointer;
	transition: color var(--transition-fast), border-color var(--transition-fast);
}
.camel-tab__btn[aria-selected='true'] {
	color: var(--color-primary);
	border-bottom-color: var(--color-primary);
}

/* 포스트 카드 */
.posts-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 2rem;
	padding: 3rem 0;
}
.post-card {
	background: var(--color-bg);
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.post-card:hover {
	box-shadow: var(--shadow-md);
	transform: translateY(-4px);
}
.post-card__thumb img {
	width: 100%;
	height: 220px;
	object-fit: cover;
}
.post-card__body {
	padding: 1.5rem;
}
.post-card__title {
	font-size: 1.125rem;
	margin-bottom: 0.75rem;
}
.post-card__title a:hover {
	color: var(--color-accent);
}
.post-card__meta {
	color: var(--color-text-muted);
	font-size: 0.8125rem;
	margin-bottom: 0.75rem;
}
.post-card__excerpt {
	color: var(--color-text-muted);
	font-size: 0.9rem;
	line-height: 1.6;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

/* 페이지네이션 */
.nav-links {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	padding: 2rem 0;
}
.nav-links .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: var(--radius-sm);
	background: var(--color-bg-alt);
	color: var(--color-text);
	font-weight: 600;
	transition: background-color var(--transition-fast), color var(--transition-fast);
}
.nav-links .page-numbers.current,
.nav-links .page-numbers:hover {
	background-color: var(--color-primary);
	color: var(--color-white);
}

/* 맵 */
.camel-map {
	border-radius: var(--radius-md);
	overflow: hidden;
	box-shadow: var(--shadow-sm);
}

/* 타임라인 */
.camel-timeline--vertical {
	position: relative;
	padding-left: 2rem;
}
.camel-timeline--vertical::before {
	content: '';
	position: absolute;
	left: 0;
	top: 0;
	bottom: 0;
	width: 2px;
	background: var(--color-border);
}

/* 맨 위로 버튼 */
.back-to-top {
	position: fixed;
	bottom: 2rem;
	right: 2rem;
	width: 48px;
	height: 48px;
	border-radius: var(--radius-full);
	background-color: var(--color-primary);
	color: var(--color-white);
	border: none;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: var(--shadow-md);
	opacity: 0;
	transform: translateY(20px);
	transition: opacity var(--transition-fast), transform var(--transition-fast);
	z-index: var(--z-modal);
	cursor: pointer;
}
.back-to-top.is-visible {
	opacity: 1;
	transform: translateY(0);
}
.back-to-top:hover {
	background-color: var(--color-accent);
}

/* 404 페이지 */
.error-404 {
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 60vh;
	padding: 4rem 0;
	text-align: center;
}
.error-404__code {
	font-size: clamp(6rem, 15vw, 12rem);
	font-weight: 900;
	color: var(--color-bg-alt);
	line-height: 1;
	margin-bottom: 1rem;
}
.error-404__title {
	font-size: 1.5rem;
	margin-bottom: 1rem;
}
.error-404__desc {
	color: var(--color-text-muted);
	margin-bottom: 2rem;
}
.error-404__actions {
	margin-bottom: 2rem;
}
.error-404__search {
	max-width: 400px;
	margin: 0 auto;
}

/* 검색 폼 */
.search-form {
	display: flex;
	gap: 0.5rem;
}
.search-form input[type='search'] {
	flex: 1;
	padding: 0.75rem 1rem;
	border: 2px solid var(--color-border);
	border-radius: var(--radius-md);
	font-size: 1rem;
	outline: none;
	transition: border-color var(--transition-fast);
}
.search-form input[type='search']:focus {
	border-color: var(--color-accent);
}
.search-form button {
	padding: 0.75rem 1.25rem;
	background-color: var(--color-primary);
	color: var(--color-white);
	border: none;
	border-radius: var(--radius-md);
}
.search-form button:hover {
	background-color: var(--color-accent);
}

/* 포커스 인디케이터 (접근성) */
:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

/* 엔트리 콘텐츠 (워드프레스 에디터 내용) */
.entry-content {
	max-width: 800px;
	margin: 0 auto;
	padding: 3rem 0;
}
.entry-content h2,
.entry-content h3,
.entry-content h4 {
	margin-top: 2rem;
	margin-bottom: 1rem;
}
.entry-content p {
	margin-bottom: 1.25rem;
}
.entry-content ul,
.entry-content ol {
	list-style: initial;
	padding-left: 1.5rem;
	margin-bottom: 1.25rem;
}
.entry-content a {
	color: var(--color-accent);
	text-decoration: underline;
}
.entry-content img {
	border-radius: var(--radius-md);
	margin: 1.5rem 0;
}

/* 엔트리 콘텐츠 wrap */
.entry-content-wrap {
	padding: 3rem 0;
}

/* 포스트 네비게이션 */
.post-navigation {
	display: flex;
	justify-content: space-between;
	padding: 2rem 0;
	border-top: 1px solid var(--color-border);
	margin-top: 2rem;
}

/* 포스트 태그 */
.tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	list-style: none;
	padding: 0;
}
.tag-list li a {
	padding: 0.25rem 0.75rem;
	background: var(--color-bg-alt);
	border-radius: var(--radius-full);
	font-size: 0.8125rem;
	color: var(--color-text-muted);
}
.tag-list li a:hover {
	background: var(--color-primary);
	color: var(--color-white);
}