/* Alp Davetiye — statik bilgi sitesi
   Tema: matbaa teknik föyü. Köşe işaretleri (kayıt/crop mark) baskı
   endüstrisindeki hizalama işaretlerinden esinlenmiştir; bu, tesadüfi
   süsleme değil, sitenin tek görsel imzasıdır. */

:root {
  --color-bg: #f7f6f2;
  --color-surface: #ffffff;
  --color-ink: #1c1a15
  --color-ink-soft: #4a4642;
  --color-border: #ddd7cc;
  --color-wine: #7a2035;
  --color-wine-soft: #f3e6e9;
  --color-brass: #93722f;
  --color-brass-soft: #f1ead6;
  --font-heading: Georgia, "Times New Roman", Times, serif;
  --font-body: Helvetica Neue,Helvetica,Liberation S
  --radius: 8px;
  --container: 880px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: Iowan Old Style,Palatino Linotype,Pa;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-wine);
  text-decoration-thickness: 1px;
}

a:hover,
a:focus {
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-wine);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-wine);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-ink);
}

.brand-mark {
  flex-shrink: 0;
}

.brand-name {
  font-family: Helvetica Neue,Helvetica,Liberation S;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}

.brand-tagline {
  display: block;
  font-family: Helvetica Neue,Helvetica,Liberation S;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-ink);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  border-bottom-color: var(--color-brass);
}

.main-nav a[aria-current="page"] {
  color: var(--color-wine);
  border-bottom-color: var(--color-wine);
  font-weight: 600;
}

/* Eyebrow / labels */

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-wine);
  margin: 0 0 0.6rem;
}

/* Hero / direct answer */

.hero-answer {
  padding: 2.5rem 0 1.5rem;
}

.hero-answer h1 {
  font-family: Helvetica Neue,Helvetica,Liberation S;
  font-weight: 700;
  font-size: clamp(1.7rem, 4.6vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  max-width: 34ch;
}

.answer-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.6rem;
  margin: 0 0 0.5rem;
}

.answer-card::before,
.answer-card::after,
.spec-wrapper::before,
.spec-wrapper::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-brass);
  opacity: 0.8;
}

.answer-card::before,
.spec-wrapper::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.answer-card::after,
.spec-wrapper::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.answer-card p {
  margin: 0 0 0.8rem;
  font-size: 1.05rem;
}

.answer-card p:last-child {
  margin-bottom: 0;
}

.figure-number {
  background: var(--color-wine);
  color: #fff;
  font-weight: 700;
  padding: 0 0.35em;
  border-radius: 3px;
  font-size: 0.95em;
}

.takeaways {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.takeaways li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  background: var(--color-brass-soft);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
}

.takeaways li strong {
  color: var(--color-wine);
}

/* Sections */

section {
  padding: 2rem 0;
}

section h2 {
  font-family: Helvetica Neue,Helvetica,Liberation S;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  margin: 0 0 0.3rem;
}

.section-intro {
  color: var(--color-ink-soft);
  max-width: 62ch;
  margin: 0 0 1.3rem;
}

/* Spec table */

.spec-wrapper {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.25rem;
  overflow-x: auto;
}

table.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

table.spec-table caption {
  text-align: left;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  padding: 0.7rem 0.9rem 0.4rem;
}

table.spec-table th,
table.spec-table td {
  text-align: left;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  font-variant-numeric: tabular-nums;
  vertical-align: top;
}

table.spec-table thead th {
  background: var(--color-wine-soft);
  color: var(--color-wine);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-wine);
}

table.spec-table tbody tr:last-child td {
  border-bottom: none;
}

table.spec-table tbody tr:nth-child(even) {
  background: #fbfaf7;
}

td[data-highlight="true"] {
  font-weight: 700;
  color: var(--color-wine);
}

/* Figures */

.figure-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
}

figure {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

figure svg {
  display: block;
  width: 100%;
  background: #fff;
}

figcaption {
  margin-top: 0.7rem;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

figcaption .fig-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brass);
  margin-bottom: 0.2rem;
}

/* Procedure */

.procedure ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: 0.9rem;
}

.procedure li {
  counter-increment: step;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-wine);
  border-radius: var(--radius);
  padding: 0.9rem 1rem 0.9rem 3.2rem;
}

.procedure li::before {
  content: counter(step);
  position: absolute;
  left: 0.8rem;
  top: 0.85rem;
  font-family: Helvetica Neue,Helvetica,Liberation S;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-wine);
}

.procedure li h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.procedure .step-meta {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-brass);
  background: var(--color-brass-soft);
  border-radius: 4px;
  padding: 0.05rem 0.5rem;
  margin: 0 0 0.4rem;
}

.procedure .step-reject {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}

.procedure .step-reject strong {
  color: var(--color-ink);
}

/* FAQ */

.faq-list {
  display: grid;
  gap: 0.6rem;
}

.faq-list details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.2rem 1rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.8rem 0;
  font-size: 0.98rem;
}

.faq-list details p {
  margin: 0 0 0.9rem;
  color: var(--color-ink-soft);
}

/* Calculator (progressive enhancement) */

.calculator {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.3rem;
}

.calculator .field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
}

.calculator label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.calculator input[type="number"] {
  font: inherit;
  font-variant-numeric: tabular-nums;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  width: 10rem;
}

.calculator button {
  font: inherit;
  font-weight: 700;
  background: var(--color-wine);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
}

.calculator button:hover {
  background: #601729;
}

.calculator-result {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 6px;
  background: var(--color-wine-soft);
  font-size: 0.95rem;
  min-height: 1.4rem;
}

.calculator-result strong {
  color: var(--color-wine);
}

.js-only-note {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin-top: 0.7rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 2rem 0 2.5rem;
  margin-top: 1rem;
}

.site-footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.2rem;
  margin: 0 0 1rem;
  padding: 0;
  font-size: 0.88rem;
}

.site-footer nav a {
  text-decoration: none;
}

.disclaimer {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  max-width: 62ch;
  margin: 0;
}

/* Responsive: tables become cards under 640px */

@media (max-width: 640px) {
  .figure-grid {
    grid-template-columns: 1fr;
  }

  table.spec-table thead {
    display: none;
  }

  table.spec-table,
  table.spec-table tbody,
  table.spec-table tr,
  table.spec-table td {
    display: block;
    width: 100%;
  }

  table.spec-table tr {
    border-bottom: 2px solid var(--color-border);
    padding: 0.6rem 0;
  }

  table.spec-table tr:last-child {
    border-bottom: none;
  }

  table.spec-table td {
    border-bottom: none;
    padding: 0.3rem 0.9rem;
  }

  table.spec-table td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-ink-soft);
    font-weight: 700;
    margin-bottom: 0.1rem;
  }

  .answer-card {
    padding: 1.2rem;
  }

  .procedure li {
    padding-left: 2.8rem;
  }
}

@media (max-width: 420px) {
  .calculator input[type="number"] {
    width: 100%;
  }
}