/* =========================================================
   Dolan Kartuş — Tasarım Sistemi
   Tema: Mürekkep kartuşu / CMYK rezervuar estetiği
   ========================================================= */

:root {
  /* Renkler — kağıt + mürekkep paleti */
  --paper:        #F6F3EC;
  --paper-card:   #FFFFFF;
  --ink:          #1C1A18;
  --ink-soft:     #5B5650;
  --line:         #E2DCD0;
  --line-strong:  #C9C1B2;

  /* CMYK aksanları */
  --cyan:         #0098B5;
  --magenta:      #D40A6E;
  --yellow:       #F2BE00;
  --key:          #1C1A18;

  /* Yüzeyler */
  --tank-bg:      #FFFFFF;
  --tank-border:  var(--ink);

  /* Tipografi */
  --font-display: "Space Grotesk", sans-serif;
  --font-body:    "Source Serif 4", Georgia, serif;
  --font-mono:    "JetBrains Mono", monospace;

  /* Ölçüler */
  --container:    1120px;
  --article-w:    680px;
  --radius-sm:    4px;
  --radius-md:    8px;
}

/* ---------------------------------------------------------
   Sıfırlama & temel
   --------------------------------------------------------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-decoration-color: rgba(0,152,181,0.35);
}
a:hover { text-decoration-color: var(--cyan); }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--magenta);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-top: 2.4em; }
h3 { font-size: 1.25rem; margin-top: 1.8em; }

p { margin: 0 0 1.2em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------------------------------------------------
   Etiket / eyebrow / mono yardımcılar
   --------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 0.6em;
}

.mono { font-family: var(--font-mono); }

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  color: var(--ink-soft);
  text-decoration: none;
}

.badge--soon {
  color: var(--ink-soft);
  border-style: dashed;
}

/* ---------------------------------------------------------
   Üst bar / navigasyon
   --------------------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 50;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.logo__mark {
  display: inline-flex;
  gap: 2px;
}
.logo__mark span {
  width: 7px;
  height: 16px;
  border-radius: 2px;
  display: block;
}
.logo__mark span:nth-child(1) { background: var(--cyan); }
.logo__mark span:nth-child(2) { background: var(--magenta); }
.logo__mark span:nth-child(3) { background: var(--yellow); }
.logo__mark span:nth-child(4) { background: var(--key); }

.nav {
  display: flex;
  gap: 22px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}
.nav a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.nav a:hover { border-bottom-color: var(--ink); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav {
    display: none;
    flex-direction: column;
    gap: 14px;
    width: 100%;
    padding: 14px 0 18px;
  }
  .nav.is-open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .site-header__inner { flex-wrap: wrap; }
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
}

.hero h1 { margin-bottom: 0.6em; }

.hero p.lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.hero__ctas {
  display: flex;
  gap: 14px;
  margin-top: 1.6em;
  flex-wrap: wrap;
}

/* ---------------------------------------------------------
   Düğmeler
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }

.btn--accent {
  background: var(--ink);
  color: var(--paper);
}
.btn--accent:hover { background: var(--magenta); border-color: var(--magenta); }

/* ---------------------------------------------------------
   Mürekkep tankı (imza bileşen)
   --------------------------------------------------------- */
.ink-tank-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.ink-tank {
  position: relative;
  width: 16px;
  height: 88px;
  background: var(--tank-bg);
  border: 1.5px solid var(--tank-border);
  border-radius: 5px 5px 2px 2px;
  overflow: hidden;
  flex-shrink: 0;
}

.ink-tank::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: var(--fill, 50%);
  background: var(--tank-color, var(--cyan));
  transition: height 0.4s ease;
}

.ink-tank--c { --tank-color: var(--cyan); }
.ink-tank--m { --tank-color: var(--magenta); }
.ink-tank--y { --tank-color: var(--yellow); }
.ink-tank--k { --tank-color: var(--key); }

.ink-tank-labels {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
.ink-tank-labels span {
  width: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-soft);
}

/* ---------------------------------------------------------
   Kategori kartları (anasayfa)
   --------------------------------------------------------- */
.section {
  padding: 56px 0;
}
.section--bordered {
  border-bottom: 1px solid var(--line);
}

.section__head {
  max-width: 60ch;
  margin-bottom: 36px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.cat-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  gap: 18px;
}

.cat-card__body h3 {
  margin-top: 0;
  font-size: 1.08rem;
}

.cat-card__body p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 0.9em;
}

.cat-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cat-card__list a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dotted var(--line-strong);
  padding-bottom: 1px;
}
.cat-card__list a:hover { border-bottom-color: var(--cyan); color: var(--cyan); }

.cat-card__list .badge--soon {
  border: none;
  padding: 0;
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: none;
}

/* ---------------------------------------------------------
   Makale düzeni
   --------------------------------------------------------- */
.article-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--line);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-bottom: 1.2em;
}
.breadcrumb a { color: var(--ink-soft); text-decoration: none; border-bottom: 1px dotted var(--line-strong); }

.article-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-top: 1.2em;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 64px;
  gap: 48px;
  padding: 40px 0 64px;
  align-items: start;
}

@media (max-width: 860px) {
  .article-layout { grid-template-columns: 1fr; }
  .reading-gauge { display: none; }
}

.article-body {
  max-width: var(--article-w);
}

.article-body > * { max-width: var(--article-w); }

.article-body ul, .article-body ol {
  padding-left: 1.4em;
}
.article-body li { margin-bottom: 0.5em; }

.article-body strong { font-weight: 600; }

.callout {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  font-size: 0.95rem;
  margin: 1.8em 0;
}
.callout strong { display: block; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cyan); margin-bottom: 0.5em; }

.callout--cta {
  border-left-color: var(--magenta);
}
.callout--cta strong { color: var(--magenta); }

/* Karşılaştırma tablosu */
.compare {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.92rem;
}
.compare th, .compare td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.compare thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--paper-card);
  color: var(--ink-soft);
}
.compare tbody th {
  font-family: var(--font-display);
  font-weight: 600;
  background: var(--paper-card);
  white-space: nowrap;
}
.compare td.good { color: #0A7A3D; }
.compare td.bad { color: var(--magenta); }

/* Adım listeleri (gerçek sıralı süreçler için) */
.steps {
  list-style: none;
  margin: 1.8em 0;
  padding: 0;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  margin-bottom: 1.2em;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 28px; height: 28px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* Okuma göstergesi (sağ sütun) */
.reading-gauge {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.reading-gauge .ink-tank { height: 160px; }
.reading-gauge__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.4;
  writing-mode: vertical-rl;
  letter-spacing: 0.08em;
}

/* ---------------------------------------------------------
   İlgili sayfalar
   --------------------------------------------------------- */
.related {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 1em;
}
.related a {
  display: block;
  padding: 16px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--ink);
}
.related a:hover { border-color: var(--cyan); }
.related .eyebrow { margin-bottom: 0.3em; }
.related h4 { margin: 0; font-size: 0.98rem; }

/* ---------------------------------------------------------
   Hesaplayıcı bileşenleri
   --------------------------------------------------------- */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 1.8em 0;
}

.calc-option {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius-md);
  padding: 18px;
}
.calc-option--m { border-top-color: var(--magenta); }
.calc-option--y { border-top-color: var(--yellow); }
.calc-option--k { border-top-color: var(--key); }
.calc-option h3 { margin-top: 0; font-size: 1rem; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.field:last-child { margin-bottom: 0; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.field input {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  width: 100%;
}
.field input:focus {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
  border-color: var(--cyan);
}
.field .hint {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.calc-results {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 6px 20px;
  margin: 1.8em 0;
}
.calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.calc-result-row:last-child { border-bottom: none; }
.calc-result-row .label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.calc-result-row .value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.calc-bars {
  display: flex;
  gap: 32px;
  align-items: flex-end;
  justify-content: center;
  margin: 1.8em 0;
  padding: 28px 20px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.calc-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.calc-bar .ink-tank { height: 150px; width: 28px; }
.calc-bar__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
}
.calc-bar__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-soft);
  text-align: center;
}

.savings-banner {
  margin: 1.8em 0;
  padding: 18px 20px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--yellow);
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
}
.savings-banner strong { font-family: var(--font-display); }

/* ---------------------------------------------------------
   Alt bilgi
   --------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  margin-top: 24px;
}
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.site-footer a { color: var(--ink-soft); }