/*
Theme Name: Baien Peptide Gutenberg
Theme URI: https://example.com/baien-peptide
Author: Baien Peptide Industry Co., Ltd.
Description: A premium, editable block theme for a global peptide manufacturer.
Version: 1.3.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 7.4
Text Domain: baien-peptide
*/

:root {
  --baien-ink: #081c22;
  --baien-deep: #0b2730;
  --baien-cyan: #18b7d6;
  --baien-mint: #a8e05f;
  --baien-paper: #f6f8f7;
  --baien-line: #dce5e4;
  --baien-muted: #52656a;
  --baien-white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--baien-ink); background: var(--baien-white); }
a { text-underline-offset: 0.2em; }
.wp-site-blocks { padding: 0; overflow: clip; }
.wp-site-blocks > * { margin-block-start: 0; }

.baien-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 28, 34, 0.97);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
}

.baien-header__inner {
  min-height: 78px;
  padding: 10px clamp(18px, 3vw, 48px);
  gap: clamp(16px, 2vw, 32px);
}

.baien-brand { gap: 12px; flex-shrink: 0; }
.baien-brand img { width: 134px !important; height: 45px !important; object-fit: contain; border-radius: 0; }
.baien-brand-name { margin: 0; color: #fff; font-size: 12px; font-weight: 700; line-height: 1.2; max-width: 150px; }
.baien-main-nav { flex: 1; }
.baien-main-nav .wp-block-navigation-item__content { color: #fff; font-size: 13px; font-weight: 650; }
.baien-main-nav .wp-block-navigation__submenu-container { background: #fff !important; border: 1px solid var(--baien-line) !important; border-radius: 6px !important; padding: 8px !important; min-width: 220px !important; }
.baien-main-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content { color: var(--baien-ink); padding: 10px 12px; }
.baien-main-nav .wp-block-navigation-item__content:hover { color: var(--baien-cyan); }

.baien-header-actions { gap: 10px; flex-shrink: 0; }
.baien-header-search { margin: 0; }
.baien-header-search .wp-block-search__inside-wrapper { padding: 0; border: 0; }
.baien-header-search .wp-block-search__input { display: none; }
.baien-header-search .wp-block-search__button {
  width: 38px;
  height: 38px;
  margin: 0;
  padding: 9px;
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
}
.baien-icon-link {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
}
.baien-icon-link:hover { color: var(--baien-mint); border-color: var(--baien-mint); }
.baien-icon-link svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.baien-shop-button .wp-block-button__link { padding: 12px 18px; font-size: 13px; white-space: nowrap; }

.baien-hero {
  min-height: min(690px, calc(100svh - 100px)) !important;
  background-color: var(--baien-deep);
}
.baien-hero .wp-block-cover__image-background { object-position: center center; }
.baien-hero__content { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.baien-hero__copy { max-width: 690px; margin-right: auto; }
.baien-eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}
.baien-hero h1 { max-width: 780px; margin: 0; color: #fff; font-size: clamp(46px, 6.4vw, 88px); line-height: 0.98; }
.baien-hero .baien-hero-lead { max-width: 660px; margin: 24px 0 0; color: rgba(255,255,255,.86); font-size: 19px; line-height: 1.65; }
.baien-hero .wp-block-buttons { margin-top: 30px; }
.baien-hero-note { margin: 24px 0 0; color: rgba(255,255,255,.7); font-size: 12px; font-weight: 650; }

.baien-proof-band { background: var(--baien-mint); }
.baien-proof-band__inner { padding: 19px 22px; gap: 24px; }
.baien-proof-item { margin: 0; color: var(--baien-ink); font-size: 13px; font-weight: 800; text-align: center; }

.baien-section { padding: 104px clamp(20px, 4vw, 64px); }
.baien-section--soft { background: var(--baien-paper); }
.baien-section--dark { color: #fff; background: var(--baien-ink); }
.baien-section__inner { width: min(1180px, 100%); margin-inline: auto; }
.baien-section-head { max-width: 700px; margin-bottom: 44px; }
.baien-section-head h2 { margin: 8px 0 0; font-size: clamp(36px, 4.4vw, 58px); line-height: 1.04; }
.baien-section-head p:last-child { color: var(--baien-muted); font-size: 17px; line-height: 1.7; }

.baien-products-grid {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.baien-product-card {
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--baien-line);
  border-radius: 7px;
}
.baien-product-card figure { margin: 0; aspect-ratio: 1; overflow: hidden; background: #e9eeef; }
.baien-product-card figure img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.baien-product-card:hover figure img { transform: scale(1.025); }
.baien-product-card__body { display: flex; flex: 1; flex-direction: column; padding: 22px; }
.baien-product-card__meta { margin: 0 0 10px; color: #14839a; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.baien-product-card h3 { margin: 0; font-size: 24px; line-height: 1.1; }
.baien-product-card__spec { margin: 7px 0 0; color: var(--baien-muted); font-size: 13px; font-weight: 700; }
.baien-product-card__effect { min-height: 76px; margin: 18px 0 0; color: var(--baien-muted); font-size: 14px; line-height: 1.55; }
.baien-product-card__footer { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--baien-line); }
.baien-product-price { margin: 0; font-size: 25px; font-weight: 800; }
.baien-product-link { font-size: 13px; font-weight: 800; text-decoration: none; }

.baien-about-grid { gap: clamp(38px, 6vw, 84px); align-items: center !important; }
.baien-about-image img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 7px; }
.baien-about-copy h2 { margin-top: 10px; font-size: clamp(34px, 4vw, 52px); line-height: 1.08; }
.baien-about-copy p { color: var(--baien-muted); font-size: 16px; line-height: 1.8; }
.baien-about-metrics { margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--baien-line); }
.baien-metric strong { display: block; font-size: 32px; }
.baien-metric span { color: var(--baien-muted); font-size: 12px; }

.baien-capability-row { padding: 30px 0; border-top: 1px solid rgba(255,255,255,.18); }
.baien-capability-row:last-child { border-bottom: 1px solid rgba(255,255,255,.18); }
.baien-capability-number { color: var(--baien-cyan); font-weight: 800; }
.baien-capability-row h3 { margin: 0; color: #fff; font-size: 26px; }
.baien-capability-row p { margin: 0; color: rgba(255,255,255,.68); line-height: 1.65; }

.baien-spotlight { overflow: hidden; background: #dff4f4; }
.baien-spotlight__media { min-height: 520px; }
.baien-spotlight__media img { width: 100%; height: 100%; object-fit: cover; }
.baien-spotlight__copy { padding: clamp(46px, 7vw, 100px); }
.baien-spotlight__copy h2 { margin: 8px 0 20px; font-size: clamp(38px, 5vw, 64px); line-height: 1; }
.baien-spotlight__copy p { font-size: 16px; line-height: 1.75; }
.baien-mini-stats { margin: 26px 0; padding: 20px 0; border-block: 1px solid rgba(8,28,34,.18); }

.baien-faq { max-width: 900px; margin-inline: auto; }
.baien-faq details { padding: 24px 0; border-top: 1px solid var(--baien-line); }
.baien-faq details:last-child { border-bottom: 1px solid var(--baien-line); }
.baien-faq summary { cursor: pointer; font-size: 19px; font-weight: 750; }
.baien-faq details p { max-width: 760px; color: var(--baien-muted); line-height: 1.7; }

.baien-contact-band { padding: 96px 24px; text-align: center; background: var(--baien-cyan); }
.baien-contact-band h2 { max-width: 780px; margin: 0 auto; color: var(--baien-ink); font-size: clamp(38px, 5vw, 62px); line-height: 1.04; }
.baien-contact-band p { max-width: 660px; margin: 20px auto 28px; color: #0b3a44; font-size: 17px; }

.baien-page-hero { padding: 88px 24px 72px; color: #fff; background: var(--baien-deep); }
.baien-page-hero__inner { width: min(1180px, 100%); margin-inline: auto; }
.baien-page-hero h1 { max-width: 820px; margin: 10px 0 0; color: #fff; font-size: clamp(44px, 6vw, 76px); line-height: 1; }
.baien-page-hero p { max-width: 680px; color: rgba(255,255,255,.74); font-size: 17px; line-height: 1.7; }
.baien-page-hero--image {
  position: relative;
  isolation: isolate;
  min-height: 430px;
  display: flex;
  align-items: flex-end;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
.baien-page-hero--image::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(6, 23, 28, 0.62);
}
.baien-page-hero--shop { background-image: url("assets/images/banner-shop.jpg"); }
.baien-page-hero--calculator { background-image: url("assets/images/banner-calculator.jpg"); background-position: center 46%; }
.baien-page-hero--about { background-image: url("assets/images/banner-about.jpg"); background-position: center 48%; }
.baien-page-hero--library { background-image: url("assets/images/banner-library.jpg"); background-position: center 54%; }
.baien-page-hero--thailand { background-image: url("assets/images/banner-thailand.jpg"); background-position: center 48%; }
.baien-page-hero--contact { background-image: url("assets/images/banner-contact.jpg"); background-position: center 46%; }
.baien-page-hero--article-purity { background-image: url("assets/images/banner-article-purity.jpg"); background-position: center 48%; }
.baien-page-hero--article-metabolic { background-image: url("assets/images/banner-article-metabolic.jpg"); background-position: center 50%; }
.baien-page-hero--article-supply { background-image: url("assets/images/banner-article-supply.jpg"); background-position: center 48%; }
.baien-product-hero { background-color: var(--baien-ink); background-position: right center; background-size: auto 100%; }
.baien-product-hero::before { background: rgba(6, 23, 28, 0.68); }
.baien-page-hero--product-tirzepatide { background-image: url("assets/images/product-tirzepatide.jpg"); }
.baien-page-hero--product-retatrutide { background-image: url("assets/images/product-retatrutide.jpg"); }
.baien-page-hero--product-nad { background-image: url("assets/images/product-nad.jpg"); }
.baien-page-hero--product-glow { background-image: url("assets/images/product-glow.jpg"); }
.baien-page-hero--product-ghk-cu { background-image: url("assets/images/product-ghk-cu.jpg"); }
.baien-page-hero--product-semax { background-image: url("assets/images/product-semax.jpg"); }
.baien-page-hero--product-bpc-tb { background-image: url("assets/images/product-bpc-tb.jpg"); }
.baien-page-hero--product-klow { background-image: url("assets/images/product-klow.jpg"); }

.baien-product-detail { padding: 42px 24px 96px; background: #fff; }
.baien-product-detail__inner { width: min(1180px, 100%); margin-inline: auto; }
.baien-breadcrumb { margin-bottom: 34px; color: var(--baien-muted); }
.baien-breadcrumb a { color: var(--baien-muted); text-decoration: none; }
.baien-product-detail__grid { gap: clamp(38px, 7vw, 94px); align-items: center !important; }
.baien-product-detail__image { overflow: hidden; margin: 0; background: #e9eeef; border-radius: 7px; }
.baien-product-detail__image img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.baien-product-detail__copy h1, .baien-product-detail__copy h2 { margin: 8px 0 0; font-size: clamp(38px, 5vw, 58px); line-height: 1; }
.baien-product-detail__spec { margin: 12px 0 0; color: var(--baien-muted); font-size: 17px; font-weight: 700; }
.baien-product-detail__price { margin: 24px 0 0; font-size: 38px; font-weight: 800; }
.baien-product-detail__lead { margin: 22px 0 0; color: var(--baien-muted); font-size: 18px; line-height: 1.7; }
.baien-product-facts { margin: 28px 0; border-top: 1px solid var(--baien-line); }
.baien-product-facts p { margin: 0; padding: 16px 0; color: var(--baien-muted); border-bottom: 1px solid var(--baien-line); line-height: 1.55; }
.baien-product-facts strong { color: var(--baien-ink); }
.baien-product-detail__notice { margin-top: 24px; color: var(--baien-muted); }

.baien-calculator {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--baien-line);
  border-radius: 7px;
}
.baien-field label { display: block; margin-bottom: 8px; font-size: 13px; font-weight: 800; }
.baien-field input, .baien-field select, .baien-contact-form input, .baien-contact-form select, .baien-contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--baien-ink);
  background: #fff;
  border: 1px solid #bdcaca;
  border-radius: 5px;
  font: inherit;
}
.baien-calculator__actions, .baien-calculator__results { grid-column: 1 / -1; }
.baien-calculator__results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; background: var(--baien-line); border: 1px solid var(--baien-line); border-radius: 6px; }
.baien-result { padding: 20px; background: var(--baien-paper); }
.baien-result span { display: block; color: var(--baien-muted); font-size: 12px; }
.baien-result strong { display: block; margin-top: 6px; font-size: 25px; }

.baien-contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.baien-contact-form .baien-field--full { grid-column: 1 / -1; }
.baien-contact-form textarea { min-height: 150px; resize: vertical; }
.baien-form-status { padding: 14px 16px; color: #17451a; background: #dff3da; border-radius: 5px; }
.baien-form-status--error { color: #6f1f1f; background: #f8dede; }
.baien-honeypot { position: absolute !important; left: -9999px !important; }

.baien-library-grid { display: grid !important; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.baien-library-grid li { padding: 0; list-style: none; }
.baien-library-grid .wp-block-post { height: 100%; padding: 26px; border: 1px solid var(--baien-line); border-radius: 7px; }
.baien-library-grid .wp-block-post::before { content: ""; display: block; aspect-ratio: 16 / 9; margin: -26px -26px 24px; background-position: center; background-size: cover; border-radius: 7px 7px 0 0; }
.baien-library-grid .wp-block-post:nth-child(1)::before { background-image: url("assets/images/banner-article-supply.jpg"); }
.baien-library-grid .wp-block-post:nth-child(2)::before { background-image: url("assets/images/banner-article-metabolic.jpg"); }
.baien-library-grid .wp-block-post:nth-child(3)::before { background-image: url("assets/images/banner-article-purity.jpg"); }
.baien-library-grid .wp-block-post-title { margin-top: 12px; font-size: 25px; line-height: 1.18; }
.baien-library-grid .wp-block-post-excerpt { color: var(--baien-muted); line-height: 1.65; }
.baien-article-content { max-width: 820px; padding: 82px 20px 96px; }
.baien-article-content h2 { margin-top: 42px; font-size: 34px; }
.baien-article-content p { color: var(--baien-muted); font-size: 17px; line-height: 1.8; }
.baien-theme-grid { display: grid !important; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.baien-theme-item { padding-top: 22px; border-top: 2px solid var(--baien-cyan); }
.baien-theme-item h3 { margin: 0 0 12px; font-size: 24px; }
.baien-theme-item p { margin: 0; color: var(--baien-muted); line-height: 1.7; }

.baien-footer { padding: 72px 24px 26px; color: rgba(255,255,255,.72); background: #06171c; }
.baien-footer__inner { width: min(1180px, 100%); margin-inline: auto; }
.baien-footer h3, .baien-footer h4 { color: #fff; }
.baien-footer a { color: rgba(255,255,255,.72); text-decoration: none; }
.baien-footer a:hover { color: var(--baien-mint); }
.baien-footer ul { padding: 0; list-style: none; }
.baien-footer li { margin-bottom: 9px; }
.baien-footer__bottom { margin-top: 52px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); }

@media (max-width: 1100px) {
  .baien-brand-name, .baien-header-search { display: none; }
  .baien-products-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 782px) {
  .baien-header__inner { min-height: 68px; }
  .baien-brand img { width: 112px !important; height: 38px !important; }
  .baien-header-actions .baien-icon-link, .baien-shop-button { display: none; }
  .baien-main-nav { justify-content: flex-end; }
  .baien-main-nav .wp-block-navigation__responsive-container.is-menu-open { padding: 26px; background: var(--baien-deep); }
  .baien-main-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item__content { font-size: 18px; }
  .baien-hero { min-height: min(650px, calc(100svh - 72px)) !important; }
  .baien-hero .wp-block-cover__image-background { object-position: 68% center; }
  .baien-hero h1 { font-size: clamp(42px, 13vw, 62px); }
  .baien-hero .baien-hero-lead { font-size: 16px; }
  .baien-section { padding: 76px 20px; }
  .baien-products-grid, .baien-library-grid { grid-template-columns: 1fr; }
  .baien-about-grid { gap: 34px; }
  .baien-spotlight__media { min-height: 380px; }
  .baien-calculator { grid-template-columns: 1fr; padding: 20px; }
  .baien-calculator__results { grid-template-columns: 1fr; }
  .baien-contact-form { grid-template-columns: 1fr; }
  .baien-contact-form .baien-field--full { grid-column: auto; }
  .baien-product-card__effect { min-height: 0; }
  .baien-product-detail { padding: 28px 20px 72px; }
  .baien-product-detail__grid { gap: 30px; }
  .baien-page-hero--image { min-height: 380px; }
  .baien-product-hero { background-position: 72% center; background-size: auto 100%; }
  .baien-theme-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .baien-product-card figure img { transition: none; }
}