/* Kraft Tape Products: site styles. Mobile-first, no framework. */
:root {
  --kraft: #9a6a3a;
  --kraft-dark: #6e4721;
  --kraft-light: #d9bf98;
  --paper: #f7f1e6;
  --paper-2: #efe5d3;
  --ink: #1f1a14;
  --ink-2: #4a4036;
  --line: #d8cbb5;
  --white: #fffdf9;
  --wa: #1f8f4e;
  --focus: #1d5fbf;
  --radius: 10px;
  --max: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
img, svg, iframe { max-width: 100%; display: block; }
a { color: var(--kraft-dark); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--white); padding: .6em 1em; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.section { padding: 56px 0; }
.section--alt { background: var(--paper-2); }
.section--dark { background: var(--ink); color: var(--paper); }
.section--dark a { color: var(--kraft-light); }
.eyebrow {
  font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--kraft-dark); margin-bottom: .5em;
}
.section--dark .eyebrow, .hero .eyebrow { color: var(--kraft-light); }
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 60ch; }
.section--dark .lead { color: #d9d0c2; }
.muted { color: var(--ink-2); }
.small { font-size: .875rem; }

/* Header */
.site-header {
  background: var(--white); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { height: 34px; width: auto; flex: none; }
.brand-name { font-weight: 800; font-size: 1.05rem; line-height: 1.1; }
.brand-name small { display: block; white-space: nowrap; font-weight: 500; font-size: .72rem; color: var(--ink-2); letter-spacing: .04em; }

.nav-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 12px; font: inherit; font-weight: 600; color: var(--ink); cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 18px; height: 2px; background: currentColor; position: relative; content: "";
}
.nav-toggle-bars::before { position: absolute; top: -6px; }
.nav-toggle-bars::after { position: absolute; top: 6px; }

.site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--white); border-bottom: 1px solid var(--line); }
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 8px 16px 16px; }
.site-nav a {
  display: block; padding: 12px 4px; text-decoration: none; color: var(--ink); font-weight: 600;
  border-bottom: 1px solid var(--paper-2);
}
.site-nav a[aria-current="page"] { color: var(--kraft-dark); }
.site-nav .btn { margin-top: 12px; border-bottom: 0; text-align: center; }
.no-js .site-nav { display: block; position: static; border: 0; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav { display: block; position: static; border: 0; background: none; }
  .site-nav ul { display: flex; align-items: center; gap: 4px; padding: 0; }
  .site-nav a { border: 0; padding: 8px 12px; border-radius: 6px; }
  .site-nav a:hover { background: var(--paper-2); }
  .site-nav a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--kraft); border-radius: 0; }
  .site-nav .btn { margin: 0 0 0 8px; padding: 9px 16px; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 8px; border: 2px solid transparent;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; line-height: 1.2;
}
.btn-primary { background: var(--kraft-dark); color: var(--white) !important; }
.btn-primary:hover { background: var(--ink); }
.btn-wa { background: var(--wa); color: #fff !important; }
.btn-wa:hover { background: #17703c; }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { background: rgba(0,0,0,.05); }
.section--dark .btn-ghost:hover, .hero .btn-ghost:hover { background: rgba(255,255,255,.08); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.btn svg { width: 20px; height: 20px; flex: none; }

/* Hero */
.hero {
  background:
    linear-gradient(115deg, rgba(31,26,20,.94) 0%, rgba(31,26,20,.82) 55%, rgba(110,71,33,.75) 100%),
    repeating-linear-gradient(90deg, #8a5e33 0 3px, #9a6a3a 3px 7px);
  color: var(--paper);
  padding: 64px 0 56px;
}
.hero h1 { color: var(--white); max-width: 18ch; }
.hero .lead { color: #e7dccb; }
.hero-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 32px 0 0; padding: 0; list-style: none; max-width: 720px; }
.hero-facts li { border-left: 3px solid var(--kraft-light); padding: 4px 0 4px 12px; }
.hero-facts strong { display: block; font-size: 1.4rem; color: var(--white); }
.hero-facts span { font-size: .85rem; color: #d9d0c2; }
@media (min-width: 720px) { .hero { padding: 96px 0 80px; } .hero-facts { grid-template-columns: repeat(4, 1fr); } }

.page-hero { background: var(--ink); color: var(--paper); padding: 48px 0 40px; }
.page-hero h1 { color: var(--white); }
.page-hero .lead { color: #d9d0c2; }
.breadcrumb { font-size: .85rem; margin-bottom: 12px; color: #bfb4a3; }
.breadcrumb a { color: var(--kraft-light); }

/* Grids and cards */
.grid { display: grid; gap: 20px; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 640px) and (max-width: 959px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column;
}
.card h3 { margin-bottom: .4em; }
.card p:last-child { margin-bottom: 0; }
.card .card-link { margin-top: auto; padding-top: 8px; font-weight: 700; }
.card-tag {
  align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  background: var(--paper-2); color: var(--kraft-dark); padding: 3px 8px; border-radius: 4px; margin-bottom: 10px;
}
.card-tag--soon { background: #fff1d6; color: #8a5a00; }
.card-tag--traded { background: #e6eef8; color: #24466f; }

.icon { width: 40px; height: 40px; color: var(--kraft-dark); margin-bottom: 12px; }

.split { display: grid; gap: 32px; align-items: center; }
@media (min-width: 880px) { .split { grid-template-columns: 1fr 1fr; gap: 56px; } }

.checklist { list-style: none; padding: 0; margin: 0 0 1em; }
.checklist li { padding-left: 28px; position: relative; margin-bottom: .5em; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 16px; height: 16px; border-radius: 50%;
  background: var(--kraft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* Photo placeholder: replace with real photos (see README) */
.photo {
  aspect-ratio: 4 / 3; border-radius: var(--radius); overflow: hidden; background: var(--paper-2);
  border: 1px dashed var(--kraft-light); display: grid; place-items: center; text-align: center;
  color: var(--ink-2); font-size: .9rem; padding: 16px;
}
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo--filled { border: 0; padding: 0; }

/* Technical data sheet card */
.tds {
  background: var(--white); border: 1px solid var(--ink); border-radius: 4px;
  box-shadow: 6px 6px 0 var(--kraft-light); overflow: hidden; scroll-margin-top: 84px;
}
.tds + .tds { margin-top: 40px; }
.tds-head {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 16px;
  background: var(--ink); color: var(--paper); padding: 14px 20px;
}
.tds-head h2, .tds-head h3 { color: var(--white); margin: 0; font-size: 1.3rem; }
.tds-code { font-family: var(--mono); font-size: .8rem; color: var(--kraft-light); letter-spacing: .05em; }
.tds-body { padding: 20px; display: grid; gap: 20px; }
@media (min-width: 880px) { .tds-body { grid-template-columns: 1.1fr 1fr; gap: 32px; } }
.tds-body p { color: var(--ink-2); }
.tds table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.tds caption { text-align: left; font-family: var(--mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding-bottom: 6px; }
.tds th, .tds td { text-align: left; vertical-align: top; padding: 9px 10px; border-top: 1px solid var(--line); }
.tds th { width: 42%; font-weight: 600; color: var(--ink-2); background: var(--paper); }
.tds td { font-family: var(--mono); font-size: .9rem; }
.tds tr:last-child th, .tds tr:last-child td { border-bottom: 1px solid var(--line); }
.on-request { color: var(--kraft-dark); font-style: italic; font-family: var(--font); }
.tds-foot {
  border-top: 1px dashed var(--line); padding: 12px 20px; font-size: .85rem; color: var(--ink-2);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; align-items: center;
}
.tds-status { font-weight: 700; color: #8a5a00; }

.toc { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.toc a {
  display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--white); text-decoration: none; font-weight: 600; font-size: .9rem; color: var(--ink);
}
.toc a:hover { border-color: var(--kraft); }

/* QC tests */
.qc-list { counter-reset: qc; list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
@media (min-width: 760px) { .qc-list { grid-template-columns: repeat(2, 1fr); } }
.qc-list li { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 20px 20px 64px; position: relative; }
.qc-list li::before {
  counter-increment: qc; content: counter(qc, decimal-leading-zero);
  position: absolute; left: 18px; top: 18px; font-family: var(--mono); font-weight: 700; color: var(--kraft);
}
.qc-list h3 { margin-bottom: .3em; }
.qc-list p { margin: 0; color: var(--ink-2); }

.notice {
  border-left: 4px solid var(--kraft); background: var(--white); padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0;
}

/* CTA band */
.cta-band { background: var(--kraft-dark); color: var(--white); padding: 48px 0; }
.cta-band h2 { color: var(--white); }
.cta-band p { color: #f1e4d0; max-width: 60ch; }
.cta-band .btn-ghost { color: var(--white); }
.cta-band .btn-primary { background: var(--white); color: var(--ink) !important; }
.cta-band .btn-primary:hover { background: var(--paper-2); }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: grid; grid-template-columns: 28px 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.contact-list svg { width: 22px; height: 22px; color: var(--kraft-dark); margin-top: 3px; }
.contact-list strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-2); }
.map { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; background: var(--paper-2); }
.map iframe { width: 100%; height: 100%; border: 0; }

.form { display: grid; gap: 14px; }
.form-row { display: grid; gap: 14px; }
@media (min-width: 640px) { .form-row { grid-template-columns: 1fr 1fr; } }
.field label { display: block; font-weight: 600; margin-bottom: 4px; font-size: .95rem; }
.field .req { color: #a3341f; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; padding: 11px 12px; border: 1px solid #b9aa91; border-radius: 8px; background: var(--white); color: var(--ink);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--focus); }
.hp { position: absolute !important; left: -9999px !important; }
.form-status { min-height: 1.5em; font-weight: 600; }
.form-status.ok { color: var(--wa); }
.form-status.err { color: #a3341f; }

.downloads { margin-top: 28px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px 6px; }
.downloads h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-2); margin-bottom: 4px; }
.dl-item { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-top: 1px solid var(--paper-2); flex-wrap: wrap; }
.dl-item:first-of-type { border-top: 0; }
.dl-thumb { flex: none; width: 72px; height: 46px; border-radius: 4px; overflow: hidden; border: 1px solid var(--line); display: grid; place-items: center; background: var(--paper); }
.dl-thumb img { width: 100%; height: 100%; object-fit: cover; }
.dl-thumb--pdf { background: #b3261e; color: #fff; font-weight: 800; font-size: .8rem; letter-spacing: .05em; border: 0; }
.dl-text { flex: 1 1 140px; min-width: 0; line-height: 1.3; }
.dl-text strong { display: block; }
.dl-text span { font-size: .85rem; color: var(--ink-2); }
.dl-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-sm { padding: 7px 12px; font-size: .875rem; border-width: 1.5px; border-radius: 6px; }

.brand-card { align-items: center; text-align: center; }
.brand-logo { height: 52px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.brand-logo img { max-height: 52px; max-width: 130px; width: auto; height: auto; object-fit: contain; }

/* Footer */
.site-footer { background: #17130e; color: #c9bfae; padding: 48px 0 24px; font-size: .95rem; }
.site-footer a { color: #e7dccb; }
.site-footer h2 { font-size: 1rem; color: var(--white); text-transform: uppercase; letter-spacing: .08em; }
.footer-grid { display: grid; gap: 28px; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 6px; }
.footer-bottom { border-top: 1px solid #3a3128; margin-top: 32px; padding-top: 16px; font-size: .85rem; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

/* Floating WhatsApp button */
.wa-float {
  position: fixed; right: 16px; bottom: 16px; z-index: 60; width: 56px; height: 56px; border-radius: 50%;
  background: var(--wa); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.wa-float svg { width: 30px; height: 30px; }
.wa-float:hover { background: #17703c; color: #fff; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .site-header, .site-footer, .wa-float, .cta-band, .nav-toggle { display: none !important; }
  body { background: #fff; }
  .tds { box-shadow: none; break-inside: avoid; }
}