/**
 * SeniorStay Base v2 — 리셋 + 공통 컴포넌트
 */

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

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

body {
	margin: 0;
	font-family: var(--font-base);
	font-size: var(--fs-body);
	line-height: var(--lh-base);
	letter-spacing: var(--ls-base);
	color: var(--c-text);
	background: var(--c-bg);
	word-break: keep-all;
	overflow-wrap: break-word;
	-webkit-font-smoothing: antialiased;
}

/* 그레인 텍스처 오버레이 — 종이 질감 */
.grain {
	position: fixed; inset: 0; z-index: 60; pointer-events: none; opacity: .035;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

h1, h2, h3, h4 {
	margin: 0 0 .5em;
	line-height: 1.3;
	letter-spacing: -0.035em;
	color: var(--c-text);
	text-wrap: balance;
	word-break: keep-all;
}
h1 { font-size: var(--fs-hero); font-weight: 800; }
h2 { font-size: var(--fs-h2); font-weight: 800; }
h3 { font-size: var(--fs-h3); font-weight: 700; }
p { margin: 0 0 1em; }

a { color: var(--c-primary); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible, summary:focus-visible {
	outline: 3px solid var(--c-accent);
	outline-offset: 3px;
	border-radius: 8px;
}

::selection { background: var(--c-primary); color: #fff; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(20px, 4vw, 32px); }
.container--narrow { max-width: 62rem; }
.section { padding-block: var(--section-gap); }

/* ── Eyebrow 라벨 (에디토리얼) ── */
.eyebrow {
	display: inline-flex; align-items: center; gap: 10px;
	font-family: var(--font-display);
	font-size: var(--fs-micro); font-weight: 600;
	letter-spacing: .22em; text-transform: uppercase;
	color: var(--c-accent);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.eyebrow--center::after { content: ""; width: 28px; height: 1px; background: currentColor; }

/* ── 프리미엄 버튼: pill + 원형 아이콘 ── */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 12px;
	min-height: var(--touch-min); padding: 6px 8px 6px 30px;
	border: 0; border-radius: var(--radius-btn);
	font-family: inherit; font-size: var(--fs-body); font-weight: 700;
	text-decoration: none; cursor: pointer;
	transition: transform var(--dur) var(--ease-premium), box-shadow var(--dur) var(--ease-premium), background-color var(--dur) var(--ease-premium);
}
.btn:active { transform: scale(.97); }
.btn__icon {
	flex: none; width: 44px; height: 44px; border-radius: 50%;
	display: inline-flex; align-items: center; justify-content: center;
	transition: transform var(--dur) var(--ease-premium);
}
.btn:hover .btn__icon { transform: translateX(4px); }
.btn svg { width: 20px; height: 20px; }

.btn--kakao { background: var(--c-kakao); color: var(--c-kakao-text); box-shadow: 0 8px 24px -8px rgba(254,229,0,.55); }
.btn--kakao:hover { color: var(--c-kakao-text); transform: scale(1.02); box-shadow: 0 12px 32px -8px rgba(254,229,0,.7); }
.btn--kakao .btn__icon { background: rgba(25,25,25,.08); }

.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { color: #fff; background: var(--c-primary-deep); transform: scale(1.02); }
.btn--primary .btn__icon { background: rgba(255,255,255,.16); }

.btn--ghost { background: transparent; color: var(--c-primary); box-shadow: inset 0 0 0 2px var(--c-primary); padding-left: 30px; }
.btn--ghost:hover { background: var(--c-primary-soft); }
.btn--ghost .btn__icon { background: var(--c-primary-soft); }

/* ── Double-Bezel 카드 ── */
.card {
	background: var(--c-surface);
	border-radius: var(--radius-card);
	box-shadow: inset 0 0 0 1px rgba(28,25,23,.05), var(--shadow-soft);
	overflow: hidden;
}
.bezel {
	background: rgba(28,25,23,.035);
	box-shadow: inset 0 0 0 1px rgba(28,25,23,.05);
	border-radius: calc(var(--radius-card) + 6px);
	padding: 6px;
}
.bezel > .card { border-radius: var(--radius-card); height: 100%; }

/* ── 뱃지 ── */
.badge {
	display: inline-flex; align-items: center; gap: 6px;
	min-height: 36px; padding: 4px 16px;
	border-radius: var(--radius-badge);
	font-size: var(--fs-small); font-weight: 700;
}
.badge--walk  { background: var(--c-primary-soft); color: var(--c-primary); }
.badge--trek  { background: var(--c-accent-soft); color: var(--c-accent); }
.badge--country { background: #F0EDE8; color: var(--c-text-2); }
.badge--glass { background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.24); backdrop-filter: blur(6px); }

/* ── 스크롤 리빌 (IntersectionObserver) ── */
.reveal { opacity: 0; transform: translateY(28px); filter: blur(3px); }
.reveal.in {
	opacity: 1; transform: translateY(0); filter: blur(0);
	transition: opacity .7s var(--ease-premium), transform .7s var(--ease-premium), filter .7s var(--ease-premium);
	transition-delay: calc(var(--i, 0) * 80ms);
}
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.reveal { opacity: 1; transform: none; filter: none; }
	*, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

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