/* Jyuban site styles
   Palette: the logo is pure black, so the site uses a softened black ink,
   a neutral off-white paper and one muted indigo accent. */

:root {
  --paper: #f6f4ef;
  --paper-2: #eeebe4;
  --ink: #1c1c1a;
  --ink-2: #57554f;
  --ink-3: #85827a;
  --line: #dcd8cf;
  --accent: #46536a;
  --accent-dark: #364154;
  --on-dark: #f3f1ec;
  --on-dark-2: rgba(243, 241, 236, 0.72);

  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --max: 1180px;
  --gutter: clamp(20px, 5vw, 48px);
  --section: clamp(72px, 11vw, 136px);
  --header-h: 76px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--header-h); }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.35rem; }

p { margin: 0 0 1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container {
  width: 100%;
  max-width: calc(var(--max) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.measure { max-width: 680px; }

.skip-link {
  position: absolute; left: 12px; top: -48px;
  background: var(--ink); color: var(--on-dark);
  padding: 10px 14px; z-index: 100; text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 244, 239, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
}

.brand { display: block; line-height: 0; }
.brand img { width: 128px; height: auto; }

.nav-list { display: flex; gap: 36px; list-style: none; margin: 0; padding: 0; }

.nav-list a {
  text-decoration: none; font-size: 0.92rem; color: var(--ink-2);
  padding: 6px 0; border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-list a:hover { color: var(--ink); }
.nav-list a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

.nav-toggle {
  display: none;
  background: none; border: 0; padding: 10px; margin-right: -10px;
  cursor: pointer; color: var(--ink);
}
.nav-toggle-bar { display: block; width: 22px; height: 1.5px; background: currentColor; transition: transform 0.25s ease, opacity 0.25s ease; }
.nav-toggle-bar + .nav-toggle-bar { margin-top: 6px; }
.nav-open .nav-toggle-bar:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-open .nav-toggle-bar:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Buttons and links */
.button {
  display: inline-block;
  background: var(--accent); color: var(--on-dark);
  text-decoration: none; font-size: 0.95rem; font-weight: 500; letter-spacing: 0.01em;
  padding: 15px 30px; border: 1px solid var(--accent); border-radius: 2px;
  cursor: pointer; font-family: var(--sans);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.button-ghost { background: transparent; color: var(--on-dark); border-color: var(--on-dark-2); }
.button-ghost:hover { background: var(--on-dark); color: var(--ink); border-color: var(--on-dark); }

.text-link {
  color: var(--accent); text-decoration: none;
  border-bottom: 1px solid rgba(70, 83, 106, 0.35);
  transition: border-color 0.2s ease;
}
.text-link:hover { border-bottom-color: var(--accent); }

/* Consistent photo treatment */
.photo { overflow: hidden; background: var(--paper-2); }
.photo img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.72) contrast(0.94) brightness(0.98);
}

/* Hero */
.hero {
  position: relative; color: var(--on-dark);
  min-height: min(88vh, 820px);
  display: flex; align-items: flex-end;
}
.hero .photo { position: absolute; inset: 0; }
.hero .photo img { object-position: 50% 60%; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(20, 20, 18, 0.35) 0%, rgba(20, 20, 18, 0) 65%),
    linear-gradient(180deg, rgba(20, 20, 18, 0.45) 0%, rgba(20, 20, 18, 0.62) 55%, rgba(20, 20, 18, 0.78) 100%);
}
.hero-content { position: relative; z-index: 1; padding-top: 140px; padding-bottom: clamp(64px, 10vw, 120px); }
.hero h1 { max-width: 15em; margin-bottom: 24px; }
.hero p { max-width: 36em; font-size: clamp(1.02rem, 1.6vw, 1.18rem); color: var(--on-dark-2); margin-bottom: 36px; }

/* Page intro (inner pages) */
.page-intro { padding: clamp(64px, 10vw, 120px) 0 clamp(40px, 6vw, 72px); }
.page-intro h1 { max-width: 18em; margin-bottom: 28px; }
.page-intro p { font-size: 1.12rem; color: var(--ink-2); max-width: 40em; }

/* Sections */
.section { padding: var(--section) 0; }
.section-tight-top { padding-top: 0; }
.section-alt { background: var(--paper-2); }
.section-rule { border-top: 1px solid var(--line); }

.section-head { margin-bottom: clamp(36px, 5vw, 56px); max-width: 760px; }
.section-head h2 + p { margin-top: 18px; color: var(--ink-2); font-size: 1.06rem; }

/* Region tiles (home) */
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tile .photo { aspect-ratio: 3 / 4; margin-bottom: 20px; }
.tile h3 { margin-bottom: 8px; }
.tile p { font-size: 0.95rem; color: var(--ink-2); }

/* Pillars and value statements */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(32px, 5vw, 64px); }
.pillar { border-top: 1px solid var(--line); padding-top: 32px; }
.pillar svg { width: 36px; height: 36px; color: var(--accent); margin-bottom: 24px; }
.pillar h3 { margin-bottom: 12px; }
.pillar p { color: var(--ink-2); }

/* Closing banner */
.banner { background: var(--accent); color: var(--on-dark); padding: clamp(72px, 10vw, 120px) 0; }
.banner-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px 64px; flex-wrap: wrap; }
.banner h2 { max-width: 18em; }

/* Lists of criteria */
.criteria { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.criteria li {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 16px 48px;
  padding: 28px 0; border-bottom: 1px solid var(--line);
}
.criteria h3 { font-size: 1.25rem; }
.criteria p { color: var(--ink-2); }

/* Seller principles */
.principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.principle { background: var(--paper); padding: clamp(28px, 4vw, 48px); }
.principle h3 { margin-bottom: 12px; }
.principle p { color: var(--ink-2); }

/* Region rows (strategy) */
.region-rows { display: grid; gap: clamp(56px, 8vw, 96px); }
.region-row { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.region-row:nth-child(even) { grid-template-columns: 1fr 1.25fr; }
.region-row:nth-child(even) .photo { order: 2; }
.region-row .photo { aspect-ratio: 16 / 10; }
.region-row h3 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); margin-bottom: 16px; }
.region-row p { color: var(--ink-2); }

/* Experience cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(20px, 3vw, 32px); }
.card .photo { aspect-ratio: 4 / 3; margin-bottom: 20px; }
.card h3 { font-size: 1.15rem; font-family: var(--sans); font-weight: 500; letter-spacing: 0; margin-bottom: 6px; }
.card p { color: var(--ink-2); font-size: 0.96rem; }
.note { margin-top: 32px; font-size: 0.92rem; color: var(--ink-3); }

/* Where we operate */
.places { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.places li {
  display: grid; grid-template-columns: 1fr 1fr 2fr; gap: 8px 32px; align-items: baseline;
  padding: 26px 0; border-bottom: 1px solid var(--line);
}
.places .place { font-family: var(--serif); font-size: 1.5rem; }
.places .continent { color: var(--ink-3); font-size: 0.92rem; }
.places .role { color: var(--ink-2); }

/* Two column text block */
.split { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(28px, 6vw, 96px); align-items: start; }
.split .body p { color: var(--ink-2); font-size: 1.08rem; }

/* Contact */
.contact-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(40px, 7vw, 96px); align-items: start; }

.form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 0.88rem; color: var(--ink-2); }
.field .optional { color: var(--ink-3); }

.field input, .field select, .field textarea {
  font: inherit; font-size: 16px; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 2px;
  padding: 13px 14px; width: 100%;
  transition: border-color 0.2s ease;
  -webkit-appearance: none; appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%2357554f' stroke-width='1.4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px;
}
.field textarea { min-height: 168px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); }

.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }

.form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 6px; }
.form-actions .small { font-size: 0.85rem; color: var(--ink-3); }
.button[disabled] { opacity: 0.6; cursor: default; }

.form-status { grid-column: 1 / -1; font-size: 0.95rem; }
.form-status:empty { display: none; }
.form-status.is-error { color: #8a3b2e; }

.form-success {
  border: 1px solid var(--line); background: #fff;
  padding: clamp(28px, 4vw, 44px);
}
.form-success h2 { font-size: 1.6rem; margin-bottom: 12px; }
.form-success p { color: var(--ink-2); }

.contact-aside .photo { aspect-ratio: 4 / 3; margin-bottom: 28px; }
.contact-aside .photo img { filter: saturate(0.5) contrast(0.9) brightness(1.04); opacity: 0.85; }
.contact-aside h2 { font-family: var(--sans); font-size: 0.88rem; font-weight: 400; color: var(--ink-3); letter-spacing: 0; margin-bottom: 6px; }
.contact-aside .email { font-size: 1.08rem; word-break: break-word; }

/* Footer */
.site-footer { background: var(--ink); color: var(--on-dark-2); font-size: 0.9rem; padding: 64px 0 40px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; flex-wrap: wrap; padding-bottom: 40px; border-bottom: 1px solid rgba(243, 241, 236, 0.14); }
.footer-brand img { width: 120px; height: auto; margin-bottom: 18px; }
.footer-brand p { margin: 0; }
.footer-meta { text-align: right; }
.footer-meta p { margin: 0 0 6px; }
.footer-meta a { color: var(--on-dark); text-decoration: none; border-bottom: 1px solid rgba(243, 241, 236, 0.35); }
.footer-meta a:hover { border-bottom-color: var(--on-dark); }
.footer-bottom { padding-top: 24px; color: rgba(243, 241, 236, 0.5); font-size: 0.84rem; }

/* Fade-in on scroll (only when JS is running and motion is allowed) */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.9s ease, transform 0.9s ease; }
  .js .reveal.is-visible { opacity: 1; transform: none; }
}

/* Responsive */
@media (max-width: 1024px) {
  .tiles { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .tile .photo { aspect-ratio: 4 / 3; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }
  .brand img { width: 112px; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 28px;
    visibility: hidden; opacity: 0; transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
  }
  .nav-open .nav { visibility: visible; opacity: 1; transform: none; transition: opacity 0.2s ease, transform 0.2s ease; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-list a { display: block; font-size: 1.15rem; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
  .nav-list a[aria-current="page"] { border-bottom-color: var(--line); color: var(--accent); }

  .pillars { grid-template-columns: 1fr; gap: 0; }
  .pillar { padding: 32px 0; }
  .criteria li { grid-template-columns: 1fr; padding: 24px 0; }
  .principles { grid-template-columns: 1fr; }
  .region-row, .region-row:nth-child(even) { grid-template-columns: 1fr; }
  .region-row:nth-child(even) .photo { order: 0; }
  .cards { grid-template-columns: 1fr; gap: 40px; }
  .split { grid-template-columns: 1fr; }
  .places li { grid-template-columns: 1fr auto; }
  .places .role { grid-column: 1 / -1; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-aside { display: grid; grid-template-columns: 1fr; }
  .contact-aside .photo { aspect-ratio: 16 / 9; order: 2; margin: 32px 0 0; }
  .footer-meta { text-align: left; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .tiles { grid-template-columns: 1fr; gap: 36px; }
  .hero { min-height: min(86svh, 760px); }
  .form { grid-template-columns: 1fr; }
  .banner .button { width: 100%; text-align: center; }
  .form-actions .button { width: 100%; }
}
.form-success:focus { outline: none; }

/* What we look for: icon beside each heading */
.criteria-title { display: flex; align-items: flex-start; gap: 18px; }
.criteria-title svg { flex: none; width: 32px; height: 32px; color: var(--accent); margin-top: -2px; }

/* About: text beside a portrait photo */
.about-intro { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.about-intro h2 { margin-bottom: 28px; }
.about-intro .body p { color: var(--ink-2); font-size: 1.08rem; }
.about-intro .photo { aspect-ratio: 4 / 5; }

@media (max-width: 860px) {
  .about-intro { grid-template-columns: 1fr; }
  .about-intro .photo { aspect-ratio: 1 / 1; }
  .about-intro .photo img { object-position: 60% 15%; }
}