/**
 * Khung chung cho "Bộ giao diện" thiệp cưới (template-parts/skin-layout.php).
 * Mỗi skin (css/skins/<slug>.css) chỉ đổi biến --sk-* + hoạ tiết/khung ảnh riêng.
 */
.sk-body {
	--sk-page: #ece6df;        /* Nền ngoài cột thiệp (màn hình rộng) */
	--sk-bg: #fffaf4;          /* Nền thiệp */
	--sk-surface: #ffffff;     /* Thẻ, form */
	--sk-alt: #f6efe6;         /* Nền section xen kẽ */
	--sk-ink: #3a2a22;         /* Chữ chính */
	--sk-muted: #8a766a;       /* Chữ phụ */
	--sk-accent: #a8323e;      /* Màu nhấn */
	--sk-accent-2: #c9a45c;    /* Màu nhấn phụ (vàng kim...) */
	--sk-on-accent: #ffffff;   /* Chữ trên nền màu nhấn */
	--sk-line: rgba(0, 0, 0, .12);
	--sk-hero-bg: var(--sk-bg);
	--sk-hero-ink: var(--sk-ink);
	--sk-radius: 14px;
	--f-body: Georgia, 'Times New Roman', serif;
	--f-head: Georgia, 'Times New Roman', serif;
	--f-name: cursive;

	/* Phong bì mở thiệp (css/envelope-intro.css) dùng chung màu của skin */
	--env-a: var(--sk-accent);
	--env-b: var(--sk-accent-2);
	--env-paper: var(--sk-bg);
	--env-ink: var(--sk-ink);
	--f-env-name: var(--f-name);
	--f-env-body: var(--f-body);

	margin: 0;
	background: var(--sk-page);
}

.sk { position: relative; max-width: 500px; margin: 0 auto; overflow: hidden; color: var(--sk-ink); background: var(--sk-bg); font-family: var(--f-body); font-size: 16px; line-height: 1.65; text-align: center; }
.sk * { box-sizing: border-box; }
.sk img { display: block; max-width: 100%; }
.sk p { margin: 0; }
.sk h1, .sk h2, .sk h3 { margin: 0; font-weight: 400; }

.sk-section { padding: 64px 26px; }
.sk-section:nth-of-type(even) { background: var(--sk-alt); }
.sk-title { margin-bottom: 18px !important; color: var(--sk-accent); font-family: var(--f-name); font-size: 46px; line-height: 1.15; }
.sk-kicker, .sk-label, .sk-eyebrow { color: var(--sk-muted); font-family: var(--f-head); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; }
.sk-script { font-family: var(--f-name); }
.sk-text { max-width: 420px; margin: 0 auto !important; font-size: 15px; }
.sk-orn { display: inline-block; width: 30px; color: var(--sk-accent-2); }
.sk-orn-svg { display: block; width: 100%; height: auto; }

.sk-divider { display: flex; align-items: center; gap: 14px; width: 72%; margin: 34px auto; }
.sk-divider::before, .sk-divider::after { content: ''; flex: 1; height: 1px; background: var(--sk-accent-2); opacity: .6; }
.sk-divider .sk-orn { width: 22px; }

/* Nút */
.sk-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin-top: 14px; padding: 10px 26px; border: 1px solid var(--sk-accent); border-radius: 999px; color: var(--sk-on-accent); background: var(--sk-accent); font: 600 13px var(--f-head); letter-spacing: .08em; text-decoration: none; text-transform: uppercase; cursor: pointer; transition: transform .2s ease, opacity .2s ease; }
.sk-btn:hover { transform: translateY(-1px); opacity: .92; }
.sk-btn-outline { color: var(--sk-accent); background: transparent; }

/* ---------- Bìa ---------- */
.sk-hero { position: relative; display: grid; justify-items: center; gap: 22px; padding: 46px 26px 56px; color: var(--sk-hero-ink); background: var(--sk-hero-bg); }
.sk-hero-top { display: grid; justify-items: center; gap: 8px; }
.sk-hero .sk-eyebrow { color: inherit; opacity: .85; }
.sk-hero-photo { position: relative; width: 100%; margin: 0; overflow: hidden; background: var(--sk-alt); }
.sk-hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.sk-names { display: grid; gap: 0; font-family: var(--f-name); font-size: clamp(44px, 12.5vw, 62px); line-height: 1.1; }
.sk-names .sk-amp, .sk-couple-names .sk-amp { font-size: .55em; color: var(--sk-accent-2); }
.sk-hero-date { display: grid; gap: 2px; margin-top: 12px !important; }
.sk-hero-date span { font-size: 13px; letter-spacing: .2em; text-transform: uppercase; opacity: .85; }
.sk-hero-date strong { font-family: var(--f-head); font-size: 26px; font-weight: 400; letter-spacing: .12em; }

/* Kiểu khung ảnh bìa */
.sk-hero-full { min-height: min(170vw, 840px); padding: 0; align-content: end; }
.sk-hero-full .sk-hero-photo { position: absolute; inset: 0; }
.sk-hero-full::after { content: ''; position: absolute; inset: 40% 0 0; background: linear-gradient(transparent, rgba(0, 0, 0, .6)); }
.sk-hero-full .sk-hero-top { position: absolute; top: 36px; z-index: 1; }
.sk-hero-full .sk-hero-text { position: relative; z-index: 1; padding: 0 20px 48px; color: #fff; }
.sk-hero-arch .sk-hero-photo { width: 82%; aspect-ratio: 4 / 5; border-radius: 999px 999px 0 0; }
.sk-hero-circle .sk-hero-photo { width: 78%; aspect-ratio: 1; border-radius: 50%; }
.sk-hero-oval .sk-hero-photo { width: 76%; aspect-ratio: 3 / 4; border-radius: 50%; }
.sk-hero-framed .sk-hero-photo { width: 86%; aspect-ratio: 4 / 5; }

/* ---------- Lời mời ---------- */
.sk-guest { margin: 6px 0 4px !important; color: var(--sk-accent); font-family: var(--f-name); font-size: 40px; line-height: 1.25; }
.sk-parents { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 30px; }
.sk-parent p { font-size: 15px; }
.sk-parent .sk-label { margin-bottom: 6px !important; color: var(--sk-accent); font-weight: 700; }
.sk-couple-names { display: grid; gap: 4px; margin-bottom: 22px; }
.sk-couple-names p { display: grid; }
.sk-couple-names .sk-script { color: var(--sk-accent); font-size: 38px; line-height: 1.25; }
.sk-couple-names .sk-amp { font-family: var(--f-name); font-size: 30px; }

/* ---------- Đếm ngược + lịch ---------- */
.sk-countdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; max-width: 380px; margin: 0 auto 28px; }
.sk-countdown div { display: grid; place-items: center; padding: 14px 4px; border: 1px solid var(--sk-line); border-radius: var(--sk-radius); background: var(--sk-surface); }
.sk-countdown strong { color: var(--sk-accent); font-family: var(--f-head); font-size: 28px; font-weight: 400; line-height: 1.1; }
.sk-countdown span { color: var(--sk-muted); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.sk-calendar { max-width: 400px; margin: 0 auto; padding: 18px 18px 20px; border: 1px solid var(--sk-line); border-radius: var(--sk-radius); background: var(--sk-surface); }
.sk-calendar-title { margin-bottom: 10px !important; color: var(--sk-accent); font-family: var(--f-head); font-size: 15px; letter-spacing: .16em; text-transform: uppercase; }
.sk-calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); row-gap: 4px; }
.sk-calendar-grid span { position: relative; display: grid; place-items: center; min-height: 34px; font-size: 14px; }
.sk-calendar-head span { min-height: 28px; color: var(--sk-muted); font-size: 11px; font-weight: 700; }
.sk-calendar .is-wedding-day svg { position: absolute; width: 34px; color: var(--sk-accent); animation: sk-beat 1.3s ease-in-out infinite; }
.sk-calendar .is-wedding-day b { position: relative; color: var(--sk-on-accent); }

/* ---------- Sự kiện ---------- */
.sk-event-list { display: grid; gap: 18px; }
.sk-event { padding: 28px 22px; border: 1px solid var(--sk-line); border-radius: var(--sk-radius); background: var(--sk-surface); }
.sk-event-title { color: var(--sk-accent); font-family: var(--f-head); font-size: 20px; font-weight: 700 !important; letter-spacing: .1em; text-transform: uppercase; }
.sk-event-date { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin: 14px 0 6px; }
.sk-event-date span { padding: 6px 0; border-top: 1px solid var(--sk-accent-2); border-bottom: 1px solid var(--sk-accent-2); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.sk-event-date strong { color: var(--sk-accent); font-family: var(--f-head); font-size: 54px; font-weight: 400; line-height: 1; }
.sk-event-time { font-size: 16px; }
.sk-event-lunar { color: var(--sk-muted); font-size: 14px; font-style: italic; }
.sk-event-place { margin-top: 12px !important; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.sk-event-address { color: var(--sk-muted); font-size: 15px; }
.sk-events .add-to-calendar { margin-top: 22px; }
.sk-events .add-to-calendar .sk-btn { margin-top: 0; }

/* ---------- Chú rể / Cô dâu ---------- */
.sk-portraits { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
.sk-portrait { margin: 0; }
.sk-portrait img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--sk-radius); }
.sk-portrait figcaption { display: grid; margin-top: 10px; }
.sk-portrait .sk-script { color: var(--sk-accent); font-size: 30px; line-height: 1.2; }

/* ---------- Album ---------- */
.sk-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sk-gallery .gallery-item { display: block; overflow: hidden; aspect-ratio: 3 / 4; border-radius: calc(var(--sk-radius) / 2); }
.sk-gallery .gallery-item:nth-child(3n+1) { grid-column: span 2; aspect-ratio: 3 / 2; }
.sk-gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sk-gallery .gallery-item:hover img { transform: scale(1.05); }

/* ---------- RSVP ---------- */
.sk-form { display: grid; gap: 14px; max-width: 420px; margin: 26px auto 0; padding: 24px; border: 1px solid var(--sk-line); border-radius: var(--sk-radius); background: var(--sk-surface); text-align: left; }
.sk-form label { display: grid; gap: 4px; }
.sk-form label > span { color: var(--sk-muted); font-size: 13px; }
.sk-form input, .sk-form select, .sk-form textarea,
.sk-guestbook .guestbook-form input, .sk-guestbook .guestbook-form textarea { width: 100%; border: 1px solid var(--sk-line); border-radius: 10px; padding: 10px 12px; color: var(--sk-ink); background: var(--sk-bg); font: 15px var(--f-body); outline: 0; }
.sk-form input:focus, .sk-form select:focus, .sk-form textarea:focus,
.sk-guestbook .guestbook-form input:focus, .sk-guestbook .guestbook-form textarea:focus { border-color: var(--sk-accent); }
.sk-form textarea { resize: vertical; }
.sk-form .attendance { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sk-form .attendance button { padding: 10px 8px; border: 1px solid var(--sk-line); border-radius: 10px; color: var(--sk-muted); background: var(--sk-bg); font: 14px var(--f-body); cursor: pointer; }
.sk-form .attendance button.is-selected { border-color: var(--sk-accent); color: var(--sk-on-accent); background: var(--sk-accent); }
.sk-form [data-guest-count][hidden] { display: none; }
.sk-form .sk-btn { margin-top: 4px; }
.sk .form-status { min-height: 20px; color: var(--sk-accent); font-size: 13px; text-align: center; }

/* ---------- Sổ lưu bút (ghi đè css/guestbook.css) ---------- */
.sk-guestbook .event-heading h2 { color: var(--sk-accent); font-family: var(--f-name); font-size: 46px; line-height: 1.15; }
.sk-guestbook .event-heading p { color: var(--sk-muted); font-size: 14px; }
.sk-guestbook .guestbook-item { border-color: var(--sk-line); background: var(--sk-surface); }
.sk-guestbook .guestbook-item-head strong { color: var(--sk-accent); }
.sk-guestbook .guestbook-item p { color: var(--sk-ink); }

/* ---------- Mừng cưới ---------- */
.sk-gift [hidden] { display: none !important; }
.sk-gift-cover { display: grid; justify-items: center; gap: 10px; width: 100%; max-width: 260px; margin: 0 auto; padding: 28px 20px; border: 1px dashed var(--sk-accent-2); border-radius: var(--sk-radius); color: var(--sk-accent); background: var(--sk-surface); font: 600 14px var(--f-head); cursor: pointer; }
.sk-gift-cover .sk-orn { width: 40px; animation: sk-beat 1.4s ease-in-out infinite; }
.sk-gift-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.sk-gift-card { padding: 16px; border: 1px solid var(--sk-line); border-radius: var(--sk-radius); background: var(--sk-surface); }
.sk-gift-card img { width: 100%; margin: 8px 0; border-radius: 8px; }
.sk-gift-card p { font-size: 14px; }

/* ---------- Cảm ơn ---------- */
.sk-thanks { position: relative; display: grid; align-content: end; min-height: 380px; color: #fff; background: var(--sk-accent); }
.sk-thanks img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sk-thanks::after { content: ''; position: absolute; inset: 0; background: linear-gradient(rgba(0, 0, 0, .05), rgba(0, 0, 0, .6)); }
.sk-thanks-text { position: relative; z-index: 1; display: grid; gap: 8px; padding: 40px 26px 48px; }
.sk-thanks .sk-script { font-size: 58px; line-height: 1.1; }
.sk-thanks-text p { font-size: 15px; }
.sk-thanks-couple { font-family: var(--f-head); letter-spacing: .2em; text-transform: uppercase; }

/* ---------- Nút nhạc ---------- */
.sk-music { position: fixed; right: max(16px, calc(50% - 234px)); bottom: 20px; z-index: 30; display: grid; place-items: center; width: 46px; height: 46px; border: 0; border-radius: 50%; color: var(--sk-on-accent); background: var(--sk-accent); box-shadow: 0 4px 16px rgba(0, 0, 0, .25); cursor: pointer; }
.sk-music svg { width: 22px; }
.sk-music[aria-pressed='true'] { animation: sk-spin 4s linear infinite; }

.sk .screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); white-space: nowrap; }

/* ---------- Hiệu ứng khi lướt tới (js/skin-base.js thêm .is-visible) ---------- */
.sk [data-anim] { opacity: 0; transition: opacity 1.1s ease, transform 1.1s ease; }
.sk [data-anim='fadeInUp'] { transform: translateY(36px); }
.sk [data-anim='fadeInLeft'] { transform: translateX(-46px); }
.sk [data-anim='fadeInRight'] { transform: translateX(46px); }
.sk [data-anim='zoomIn'] { transform: scale(.75); }
.sk [data-anim='flipInY'] { transform: perspective(700px) rotateY(70deg); }
.sk [data-anim].is-visible { opacity: 1; transform: none; }

@keyframes sk-beat { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.12); } }
@keyframes sk-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
	.sk [data-anim] { opacity: 1; transform: none; transition: none; }
	.sk-music, .sk-calendar .is-wedding-day svg, .sk-gift-cover .sk-orn { animation: none !important; }
}

@media (max-width: 380px) {
	.sk-section { padding-left: 16px; padding-right: 16px; }
	.sk-event-date strong { font-size: 44px; }
}
.sk-events .add-to-calendar .sk-btn { padding: 10px 14px; font-size: 12px; letter-spacing: .04em; }

/* Kiểu khung ảnh bìa: ảnh polaroid nghiêng + tem thư răng cưa */
.sk-hero-polaroid .sk-hero-photo { width: 80%; aspect-ratio: 4 / 5; padding: 12px 12px 48px; background: #fff; box-shadow: 0 14px 30px rgba(0, 0, 0, .18); transform: rotate(-3deg); overflow: visible; }
.sk-hero-polaroid .sk-hero-photo img { height: 100%; }
.sk-hero-stamp .sk-hero-photo { width: 80%; aspect-ratio: 4 / 5; padding: 12px; background: #fff; -webkit-mask: radial-gradient(circle 7px, #0000 98%, #000) -10px -10px / 20px 20px, linear-gradient(#000 0 0) content-box; mask: radial-gradient(circle 7px, #0000 98%, #000) -10px -10px / 20px 20px, linear-gradient(#000 0 0) content-box; filter: drop-shadow(0 8px 18px rgba(0, 0, 0, .15)); }

/* Skin nền tối (lyhi_wedding_skins()['dark']) */
.sk-dark .sk-form input, .sk-dark .sk-form select, .sk-dark .sk-form textarea,
.sk-dark .sk-guestbook .guestbook-form input, .sk-dark .sk-guestbook .guestbook-form textarea { background: rgba(255, 255, 255, .06); }
.sk-dark .sk-form select option { color: #111; }
.sk-dark .sk-gift-card img { padding: 6px; background: #fff; }
.sk-dark .wedding-music-credit, .sk-dark.sk-body .wedding-music-credit { color: rgba(255, 255, 255, .55); }