/*
Theme Name: Indupack Precision
Theme URI: https://example.com/indupack-precision
Author: Codex
Description: ธีม WordPress สำหรับโรงงานผลิตกล่องลูกฟูกและบรรจุภัณฑ์อุตสาหกรรม เน้นภาพลักษณ์ทันสมัย ความแม่นยำ และการขอใบเสนอราคา
Version: 1.0.0
Requires at least: 6.2
Tested up to: 6.7
Requires PHP: 7.4
Text Domain: indupack-precision
*/

:root {
  --ip-ink: #0f172a;
  --ip-black: #050505;
  --ip-blue: #0066ff;
  --ip-blue-soft: #e8f0ff;
  --ip-slate: #64748b;
  --ip-muted: #94a3b8;
  --ip-line: #e2e8f0;
  --ip-surface: #f7f9fb;
  --ip-surface-2: #eef2f6;
  --ip-white: #fff;
  --ip-success: #087c54;
  --ip-container: 1280px;
  --ip-radius: 8px;
  --ip-shadow: 0 16px 44px rgba(15, 23, 42, .08);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ip-ink);
  background: var(--ip-surface);
  font-family: Inter, "Noto Sans Thai", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.admin-bar .site-header { top: 32px; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid rgba(0, 102, 255, .35);
  outline-offset: 3px;
}

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

.skip-link:focus {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  width: auto;
  height: auto;
  padding: 10px 16px;
  clip: auto;
  color: #fff;
  background: #000;
}

.container {
  width: min(calc(100% - 48px), var(--ip-container));
  margin-inline: auto;
}

.section { padding: 112px 0; }
.section--tight { padding: 76px 0; }
.section--white { background: var(--ip-white); }
.section--soft { background: var(--ip-surface-2); }
.section--dark { color: var(--ip-white); background: var(--ip-black); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 6px 10px;
  color: var(--ip-blue);
  background: var(--ip-blue-soft);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.section-heading {
  display: flex;
  gap: 32px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 40px;
}

.section-heading__copy { max-width: 720px; }

.section-heading h2,
.page-hero h1,
.hero h1 {
  margin: 0;
  color: var(--ip-black);
  font-weight: 750;
  letter-spacing: -.04em;
  line-height: 1.08;
}

.section-heading h2 { font-size: clamp(34px, 4vw, 56px); }
.section-heading p { max-width: 660px; margin: 14px 0 0; color: var(--ip-slate); }

.text-link {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--ip-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid var(--ip-black);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, .16);
}

.button--dark { color: #fff; background: #000; }
.button--blue { color: #fff; background: var(--ip-blue); border-color: var(--ip-blue); }
.button--light { color: #000; background: #fff; border-color: #fff; }
.button--outline { color: var(--ip-ink); background: transparent; border-color: #b8c0ca; }
.button--block { width: 100%; }

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: 76px;
  background: rgba(247, 249, 251, .94);
  border-bottom: 1px solid rgba(148, 163, 184, .22);
  backdrop-filter: blur(16px);
}

.site-header__inner {
  display: flex;
  height: 76px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: #050505;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -.05em;
}

.brand::before {
  width: 8px;
  height: 8px;
  margin-right: 9px;
  background: var(--ip-blue);
  border-radius: 2px;
  content: "";
}

.primary-nav { display: flex; align-items: center; gap: 34px; }
.primary-nav ul { display: flex; margin: 0; padding: 0; gap: 32px; list-style: none; }
.primary-nav a:not(.button) {
  position: relative;
  color: #4d5c6e;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .03em;
}

.primary-nav a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 2px;
  background: var(--ip-black);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}

.primary-nav a:not(.button):hover::after,
.primary-nav .current-menu-item > a::after { transform: scaleX(1); }

.menu-toggle {
  display: none;
  min-width: 76px;
  min-height: 42px;
  color: #fff;
  background: #000;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.site-main { padding-top: 76px; }

.hero {
  position: relative;
  display: grid;
  min-height: 720px;
  align-items: center;
  overflow: hidden;
  background: #dfe5e9;
}

.hero__media,
.hero__shade { position: absolute; inset: 0; }
.hero__media { width: 100%; height: 100%; object-fit: cover; }
.hero__shade {
  background: linear-gradient(90deg, rgba(247, 249, 251, .96) 0%, rgba(247, 249, 251, .82) 37%, rgba(247, 249, 251, .13) 72%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 650px;
  padding: 88px 0;
}

.hero h1 { max-width: 620px; margin-top: 18px; font-size: clamp(48px, 6vw, 78px); }
.hero h1 span { color: var(--ip-blue); }
.hero p { max-width: 600px; margin: 24px 0 32px; color: #526174; font-size: 18px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.trust-card {
  padding: 30px;
  background: #fff;
  border: 1px solid var(--ip-line);
  border-radius: var(--ip-radius);
  transition: transform .25s ease, box-shadow .25s ease;
}

.trust-card:hover { transform: translateY(-5px); box-shadow: var(--ip-shadow); }
.trust-card__index { color: var(--ip-blue); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.trust-card h3 { margin: 26px 0 8px; font-size: 21px; }
.trust-card p { margin: 0; color: var(--ip-slate); }

.category-grid {
  display: grid;
  grid-template-columns: 1.55fr .75fr;
  gap: 20px;
}

.category-card {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  border-radius: var(--ip-radius);
}

.category-card--wide { grid-column: 1 / -1; min-height: 340px; }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.category-card:hover img { transform: scale(1.045); }
.category-card::after { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.66)); content: ""; }
.category-card__copy { position: absolute; z-index: 1; right: 28px; bottom: 26px; left: 28px; color: #fff; }
.category-card__copy span { font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.category-card__copy h3 { margin: 8px 0 0; font-size: clamp(24px, 3vw, 40px); line-height: 1.1; }

.article-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.article-card,
.product-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--ip-line);
  border-radius: var(--ip-radius);
  transition: transform .25s ease, box-shadow .25s ease;
}

.article-card:hover,
.product-card:hover { transform: translateY(-5px); box-shadow: var(--ip-shadow); }
.article-card__image,
.product-card__image { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.article-card__body,
.product-card__body { display: flex; height: 100%; padding: 24px; flex-direction: column; }
.article-card__meta { color: var(--ip-blue); font-size: 11px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.article-card h3,
.product-card h3 { margin: 12px 0 10px; font-size: 22px; line-height: 1.28; }
.article-card p,
.product-card p { margin: 0 0 20px; color: var(--ip-slate); }
.article-card .text-link { margin-top: auto; color: var(--ip-ink); }

.product-card__image-wrap { position: relative; overflow: hidden; }
.product-card__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 8px;
  color: #102033;
  background: rgba(255,255,255,.9);
  border-radius: 3px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
}

.spec-list { margin: auto 0 22px; padding: 0; list-style: none; }
.spec-list li {
  display: flex;
  gap: 14px;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #edf0f3;
  color: #667085;
  font-size: 13px;
}
.spec-list strong { color: var(--ip-ink); text-align: right; }

.quote-section__grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, .65fr);
  gap: 80px;
  align-items: center;
}

.quote-copy h2 { max-width: 580px; margin: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.06; letter-spacing: -.04em; }
.quote-copy p { max-width: 550px; margin: 22px 0 0; color: #aeb5bf; font-size: 17px; }

.quote-form { padding: 28px; color: var(--ip-ink); background: #fff; border-radius: var(--ip-radius); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { margin-bottom: 12px; }
.field label { display: block; margin-bottom: 6px; color: #475569; font-size: 12px; font-weight: 750; }
.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  color: var(--ip-ink);
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus,
.field textarea:focus,
.field select:focus { border-color: var(--ip-blue); box-shadow: 0 0 0 3px rgba(0,102,255,.12); outline: 0; }
.form-status { margin: 12px 0 0; color: var(--ip-success); font-weight: 700; }

.page-hero { padding: 112px 0 76px; }
.page-hero__inner { max-width: 850px; }
.page-hero h1 { margin-top: 18px; font-size: clamp(46px, 6vw, 76px); }
.page-hero p { max-width: 720px; margin: 24px 0 0; color: var(--ip-slate); font-size: 19px; }

.filter-bar {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 34px;
}
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-button {
  min-height: 38px;
  padding: 8px 16px;
  color: #536174;
  background: #fff;
  border: 1px solid #cfd6df;
  border-radius: 99px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}
.filter-button.is-active { color: #fff; background: #000; border-color: #000; }

.results-count { color: var(--ip-slate); font-size: 13px; font-weight: 700; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.quote-section__grid > .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat-card { padding: 28px; background: #fff; border: 1px solid var(--ip-line); border-radius: var(--ip-radius); }
.stat-card strong { display: block; color: #000; font-size: clamp(34px, 4vw, 54px); line-height: 1; letter-spacing: -.05em; }
.stat-card span { display: block; margin-top: 9px; color: var(--ip-slate); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }

.history-hero {
  display: grid;
  min-height: 620px;
  grid-template-columns: 1fr 1.1fr;
  background: #fff;
}
.history-hero__copy { display: flex; padding: 72px max(32px, calc((100vw - var(--ip-container)) / 2)); justify-content: center; flex-direction: column; }
.history-hero__copy h1 { max-width: 560px; margin: 16px 0 18px; color: #000; font-size: clamp(48px, 6vw, 76px); line-height: 1.03; letter-spacing: -.05em; }
.history-hero__copy p { max-width: 560px; margin: 0; color: var(--ip-slate); }
.history-hero__image { width: 100%; height: 100%; min-height: 620px; object-fit: cover; filter: grayscale(1); }

.timeline { position: relative; max-width: 1040px; margin: 0 auto; }
.timeline::before { position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: #b9c2ce; content: ""; }
.timeline-item { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; margin-bottom: 74px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item:nth-child(even) .timeline-item__image { order: 2; }
.timeline-item__year {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  background: #000;
  border: 7px solid var(--ip-surface);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
  transform: translate(-50%, -50%);
}
.timeline-item__image { width: 100%; aspect-ratio: 16 / 8.5; object-fit: cover; filter: saturate(.8); }
.timeline-item__copy h3 { margin: 0 0 8px; font-size: 25px; }
.timeline-item__copy p { margin: 0; color: var(--ip-slate); }

.split-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split-feature__media { position: relative; }
.split-feature__media img { width: 100%; aspect-ratio: 1; object-fit: cover; filter: grayscale(1); }
.split-feature__label { position: absolute; right: -24px; bottom: 28px; max-width: 240px; padding: 24px; background: #fff; box-shadow: var(--ip-shadow); }
.split-feature h2 { margin: 0 0 18px; color: #000; font-size: clamp(36px, 4vw, 56px); line-height: 1.08; letter-spacing: -.04em; }
.feature-list { margin: 26px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; margin: 0 0 18px; padding-left: 25px; color: var(--ip-slate); }
.feature-list li::before { position: absolute; top: .66em; left: 0; width: 8px; height: 8px; background: var(--ip-blue); border-radius: 2px; content: ""; }
.feature-list strong { display: block; color: var(--ip-ink); }

.leaders-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.leader-card img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: grayscale(1); transition: filter .3s ease; }
.leader-card:hover img { filter: grayscale(0); }
.leader-card h3 { margin: 16px 0 2px; font-size: 18px; }
.leader-card p { margin: 0; color: var(--ip-blue); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }

.insights-feature {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
.insights-feature__main { position: relative; min-height: 520px; overflow: hidden; border-radius: var(--ip-radius); }
.insights-feature__main img { position: absolute; width: 100%; height: 100%; object-fit: cover; }
.insights-feature__main::after { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.02), rgba(0,0,0,.8)); content: ""; }
.insights-feature__copy { position: absolute; z-index: 1; right: 36px; bottom: 36px; left: 36px; color: #fff; }
.insights-feature__copy h2 { max-width: 700px; margin: 12px 0; font-size: clamp(34px, 4vw, 56px); line-height: 1.12; letter-spacing: -.04em; }
.insights-feature__side { display: grid; gap: 20px; }
.feature-note { display: flex; padding: 28px; flex-direction: column; justify-content: space-between; background: #fff; border: 1px solid var(--ip-line); border-radius: var(--ip-radius); }
.feature-note--dark { color: #fff; background: #000; border-color: #000; }
.feature-note h3 { margin: 16px 0 12px; font-size: 23px; line-height: 1.3; }
.feature-note p { margin: 0 0 18px; color: var(--ip-slate); }
.feature-note--dark p { color: #aeb5bf; }

.newsletter { position: relative; overflow: hidden; padding: 64px; background: #e0e4e8; border-radius: var(--ip-radius); }
.newsletter__inner { position: relative; z-index: 1; max-width: 730px; }
.newsletter h2 { margin: 0; color: #000; font-size: clamp(38px, 4vw, 58px); line-height: 1.1; letter-spacing: -.04em; }
.newsletter p { margin: 16px 0 24px; color: var(--ip-slate); }
.newsletter-form { display: flex; gap: 10px; }
.newsletter-form input { width: min(430px, 100%); min-height: 50px; padding: 12px 16px; border: 1px solid #c4ccd5; border-radius: 4px; }

.site-footer { padding: 76px 0 40px; color: #536174; background: #fff; border-top: 1px solid var(--ip-line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 46px; }
.site-footer h3 { margin: 0 0 18px; color: #111; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.site-footer p { max-width: 330px; margin: 18px 0; font-size: 14px; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin: 0 0 10px; }
.site-footer a { font-size: 14px; text-decoration: underline; text-decoration-color: #cbd5e1; text-underline-offset: 4px; }
.site-footer a:hover { color: var(--ip-blue); }
.footer-bottom { margin-top: 54px; padding-top: 24px; border-top: 1px solid var(--ip-line); font-size: 12px; }

.entry-content { max-width: 820px; margin: 0 auto; }
.entry-content > * { max-width: 100%; }
.entry-content h1, .entry-content h2, .entry-content h3 { color: #000; line-height: 1.2; }
.entry-content a { color: var(--ip-blue); text-decoration: underline; }

.empty-state { padding: 52px; text-align: center; background: #fff; border: 1px solid var(--ip-line); border-radius: var(--ip-radius); }
.hidden { display: none !important; }

@media (max-width: 1024px) {
  .article-grid,
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quote-section__grid { gap: 40px; }
  .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
  .footer-grid > div:last-child { grid-column: 2; }
}

@media (max-width: 840px) {
  body.admin-bar .site-header { top: 46px; }
  .section { padding: 80px 0; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .primary-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    padding: 20px 24px 28px;
    align-items: stretch;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--ip-line);
    box-shadow: 0 20px 30px rgba(15,23,42,.12);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav ul { align-items: stretch; flex-direction: column; gap: 0; }
  .primary-nav li { border-bottom: 1px solid #edf0f3; }
  .primary-nav a:not(.button) { display: block; padding: 14px 2px; font-size: 15px; }
  .primary-nav a:not(.button)::after { display: none; }
  .hero { min-height: 670px; }
  .hero__shade { background: linear-gradient(90deg, rgba(247,249,251,.97), rgba(247,249,251,.76)); }
  .hero__content { max-width: 580px; }
  .trust-grid,
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: 1fr; }
  .category-card--wide { grid-column: auto; }
  .quote-section__grid,
  .split-feature,
  .history-hero,
  .insights-feature { grid-template-columns: 1fr; }
  .history-hero__copy { padding: 72px 24px; }
  .history-hero__image { min-height: 480px; }
  .timeline::before { left: 20px; }
  .timeline-item { grid-template-columns: 1fr; gap: 18px; padding-left: 58px; }
  .timeline-item:nth-child(even) .timeline-item__image { order: initial; }
  .timeline-item__year { top: 24px; left: 20px; }
  .split-feature__label { right: 18px; }
  .leaders-grid { grid-template-columns: repeat(2, 1fr); }
  .insights-feature__main { min-height: 480px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid > div:last-child { grid-column: auto; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 40px), var(--ip-container)); }
  .section { padding: 68px 0; }
  .section--tight { padding: 54px 0; }
  .section-heading { align-items: start; flex-direction: column; margin-bottom: 28px; }
  .hero { min-height: 650px; }
  .hero__content { padding: 62px 0; }
  .hero h1 { font-size: 47px; }
  .hero p { font-size: 16px; }
  .hero__actions .button { width: 100%; }
  .trust-grid,
  .stats-grid,
  .article-grid,
  .product-grid,
  .leaders-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .category-card,
  .category-card--wide { min-height: 280px; }
  .quote-section__grid { grid-template-columns: 1fr; }
  .quote-form { padding: 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .page-hero { padding: 74px 0 54px; }
  .page-hero h1 { font-size: 46px; }
  .filter-bar { align-items: flex-start; flex-direction: column; }
  .history-hero__image { min-height: 390px; }
  .timeline-item { padding-left: 50px; }
  .split-feature__label { position: relative; right: auto; bottom: auto; max-width: none; margin: -28px 16px 0; }
  .insights-feature__main { min-height: 560px; }
  .insights-feature__copy { right: 22px; bottom: 24px; left: 22px; }
  .newsletter { padding: 38px 24px; }
  .newsletter-form { align-items: stretch; flex-direction: column; }
  .newsletter-form .button { width: 100%; }
}