/* Module Pack — atelier / packing-studio theme */
:root {
  --color-bg: #e6ebe8;
  --color-bg-deep: #d3ddd6;
  --color-surface: #f4f7f5;
  --color-ink: #14201c;
  --color-ink-soft: #3a4a44;
  --color-muted: #5c6e66;
  --color-primary: #1f4d3d;
  --color-primary-hover: #16382d;
  --color-accent: #b5472a;
  --color-accent-hover: #93381f;
  --color-line: #b8c5bd;
  --color-success: #1f4d3d;
  --color-error: #8f2a1f;
  --font-display: "Prompt", sans-serif;
  --font-body: "Sarabun", sans-serif;
  --space-xs: 0.35rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --radius: 2px;
  --shadow-soft: 0 12px 40px rgba(20, 32, 28, 0.08);
  --max: 72rem;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(31, 77, 61, 0.08), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(181, 71, 42, 0.06), transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-ink);
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--space-md); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-primary);
  color: #f7faf8;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
}

.btn--accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-ink);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 247, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-header__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  text-decoration: none;
}

.site-header__brand:hover {
  color: var(--color-accent);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.4rem;
  cursor: pointer;
}

.site-header__toggle-bar {
  display: block;
  width: 1.4rem;
  height: 2px;
  background: var(--color-ink);
}

.site-header__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__link {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
}

.site-header__link:hover,
.site-header__link.is-active {
  color: var(--color-primary);
}

@media (max-width: 860px) {
  .site-header__toggle { display: flex; }
  .site-header__nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    padding: var(--space-md) 1rem;
    display: none;
  }
  .site-header__nav.is-open { display: block; }
  .site-header__list {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* Footer */
.site-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-lg);
  background: var(--color-ink);
  color: #c9d4ce;
}

.site-footer a { color: #e8f0eb; }
.site-footer a:hover { color: #fff; }

.site-footer__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-xs);
}

.site-footer__tag,
.site-footer__contact p {
  margin-bottom: var(--space-xs);
}

.site-footer__nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.site-footer__copy {
  width: min(100% - 2rem, var(--max));
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.9rem;
  color: #8fa398;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-md);
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  box-shadow: var(--shadow-soft);
  animation: slideUp 0.45s var(--ease);
}

.cookie-banner[hidden] { display: none; }

.cookie-banner__inner {
  width: min(100%, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-banner__text {
  margin: 0;
  flex: 1 1 16rem;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeRise {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes drawLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* Page sections */
.page-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  animation: fadeRise 0.7s var(--ease) both;
}

.page-hero--split {
  display: grid;
  gap: var(--space-lg);
  align-items: end;
}

@media (min-width: 900px) {
  .page-hero--split {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.page-hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin: 0 0 var(--space-sm);
  line-height: 1.05;
}

.page-hero__lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 36rem;
}

.page-hero__rule {
  display: block;
  width: 4.5rem;
  height: 3px;
  background: var(--color-accent);
  margin: var(--space-md) 0;
  transform-origin: left;
  animation: drawLine 0.8s var(--ease) 0.2s both;
}

.page-hero__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 16rem;
}

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 18rem;
  animation: fadeRise 0.9s var(--ease) 0.15s both;
}

.section {
  padding: var(--space-xl) 0;
}

.section__head {
  max-width: 38rem;
  margin-bottom: var(--space-lg);
}

.section__eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.grid-offers {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.offer-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: 0;
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.offer-tile:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  color: inherit;
  text-decoration: none;
}

.offer-tile__img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.offer-tile__body {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.offer-tile__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.offer-tile__text {
  color: var(--color-muted);
  font-size: 0.98rem;
  margin-bottom: var(--space-md);
  flex: 1;
}

.offer-tile__link {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
}

.flagship-panel {
  display: grid;
  gap: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: var(--space-lg);
}

@media (min-width: 860px) {
  .flagship-panel {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.evidence-list {
  display: grid;
  gap: var(--space-md);
}

.evidence-item {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-line);
}

.evidence-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.evidence-item__meta {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.prose {
  max-width: 42rem;
}

.prose ul, .prose ol {
  padding-left: 1.25rem;
  margin-bottom: var(--space-md);
}

.prose li { margin-bottom: 0.35rem; }

.detail-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  margin: var(--space-lg) 0;
}

.detail-block {
  background: var(--color-surface);
  border-left: 3px solid var(--color-primary);
  padding: var(--space-md);
}

.detail-block h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.detail-block p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 0.98rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-md);
}

.steps li {
  position: relative;
  padding-left: 3rem;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

.price-table th,
.price-table td {
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}

.price-table th {
  font-family: var(--font-display);
  font-weight: 600;
  background: var(--color-bg-deep);
}

.note {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.form {
  max-width: 36rem;
  display: grid;
  gap: var(--space-md);
}

.form__field {
  display: grid;
  gap: 0.35rem;
}

.form__label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font: inherit;
  background: var(--color-surface);
  color: var(--color-ink);
}

.form__textarea { min-height: 8rem; resize: vertical; }

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.form__error {
  color: var(--color-error);
  font-size: 0.88rem;
  min-height: 1.2em;
}

.form__status {
  padding: var(--space-md);
  border: 1px solid var(--color-line);
  background: var(--color-surface);
}

.form__status--success {
  border-color: var(--color-success);
  color: var(--color-success);
}

.form__status--error {
  border-color: var(--color-error);
  color: var(--color-error);
}

.contact-aside {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: var(--space-lg);
}

.contact-layout {
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 860px) {
  .contact-layout {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.post-list {
  display: grid;
  gap: var(--space-lg);
}

.post-card {
  display: grid;
  gap: var(--space-md);
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: var(--space-lg);
}

.post-card:hover { color: inherit; text-decoration: none; }

@media (min-width: 700px) {
  .post-card {
    grid-template-columns: 14rem 1fr;
    align-items: start;
  }
}

.post-card__img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.post-card__date {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-family: var(--font-display);
}

.legal h2 {
  margin-top: var(--space-xl);
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.95rem;
}

.legal th,
.legal td {
  border: 1px solid var(--color-line);
  padding: 0.65rem 0.75rem;
  text-align: left;
  background: var(--color-surface);
}

.legal th { background: var(--color-bg-deep); }

.cta-band {
  margin: var(--space-xl) 0;
  padding: var(--space-xl);
  background: var(--color-primary);
  color: #e8f0eb;
  text-align: center;
}

.cta-band h2 { color: #fff; }
.cta-band p { color: #c9d4ce; max-width: 32rem; margin-inline: auto; }

.process-timeline {
  display: grid;
  gap: 0;
}

.process-step {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-line);
  grid-template-columns: 4rem 1fr;
}

.process-step__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.error-page {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.stack-md > * + * {
  margin-top: var(--space-md);
}