/* =====================================================================
   PDF Araçları — tasarım sistemi
   Tek dosya, modüler bölümler, CSS değişkenleri, responsive.
   ===================================================================== */

/* ---------- 1. Tokenlar ---------- */
:root {
  /* Renk */
  --brand-500: #e02d2d;
  --brand-600: #c81f26;
  --brand-700: #a3161d;
  --brand-050: #fef2f2;
  --brand-100: #fee2e2;

  --accent-500: #f97316;
  --accent-100: #ffedd5;

  --ink-900: #0b1220;
  --ink-800: #131c2e;
  --ink-700: #1f2a3d;
  --ink-600: #33415c;
  --ink-500: #4b5b73;
  --ink-400: #6b7c93;
  --ink-300: #94a3b8;
  --ink-200: #cbd5e1;
  --ink-100: #e2e8f0;
  --ink-050: #f1f5f9;
  --surface: #ffffff;
  --surface-muted: #f7f9fc;
  --surface-sunken: #eef2f7;

  --success-600: #047857;
  --success-050: #ecfdf5;
  --warning-600: #b45309;
  --warning-050: #fffbeb;
  --danger-600: #b91c1c;
  --danger-050: #fef2f2;
  --info-600: #1d4ed8;
  --info-050: #eff6ff;

  /* Tipografi */
  --font-sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: clamp(2.25rem, 1.4rem + 3.2vw, 3.5rem);

  /* Boşluk */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Biçim */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --radius-full: 999px;

  --shadow-xs: 0 1px 2px rgba(11, 18, 32, 0.06);
  --shadow-sm: 0 1px 3px rgba(11, 18, 32, 0.08), 0 1px 2px rgba(11, 18, 32, 0.04);
  --shadow-md: 0 8px 24px -12px rgba(11, 18, 32, 0.22);
  --shadow-lg: 0 24px 60px -28px rgba(11, 18, 32, 0.35);

  --container: 1180px;
  --header-h: 68px;

  --transition: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 2. Temel ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--ink-700);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* Satır içi SVG'ler varsayılan olarak kapsayıcıyı doldurmasın.
   Her kullanım yeri kendi ölçüsünü verir; bu, unutulan yerler için güvenlik ağıdır. */
svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  color: var(--ink-900);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: clamp(1.55rem, 1.2rem + 1.4vw, 2.15rem); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin: 0 0 var(--space-4); }

a {
  color: var(--brand-600);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { color: var(--brand-700); }

ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }

code, pre { font-family: var(--font-mono); font-size: 0.9em; }

hr {
  border: 0;
  border-top: 1px solid var(--ink-100);
  margin: var(--space-8) 0;
}

:focus-visible {
  outline: 3px solid var(--info-600);
  outline-offset: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--ink-900);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: top var(--transition);
}

.skip-link:focus { top: var(--space-4); color: #fff; }

/* ---------- 3. Yerleşim ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: clamp(2.5rem, 1.6rem + 3vw, 4.5rem);
}

.section--muted { background: var(--surface-muted); }
.section--sunken { background: var(--surface-sunken); }

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-8);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-3);
  padding: 0.3rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-700);
  background: var(--brand-050);
  border: 1px solid var(--brand-100);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.eyebrow svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.lead {
  font-size: var(--text-lg);
  color: var(--ink-500);
}

/* ---------- 4. Butonlar ---------- */
.btn {
  --btn-bg: var(--ink-900);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  font: inherit;
  font-weight: 600;
  font-size: var(--text-sm);
  line-height: 1.2;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.btn:hover { color: var(--btn-fg); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn[disabled], .btn.is-disabled { opacity: 0.55; pointer-events: none; }

.btn--primary { --btn-bg: var(--brand-600); }
.btn--primary:hover { --btn-bg: var(--brand-700); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink-800); border-color: var(--ink-200); }
.btn--ghost:hover { --btn-bg: var(--ink-050); }
.btn--light { --btn-bg: #fff; --btn-fg: var(--ink-900); border-color: var(--ink-100); }
.btn--block { width: 100%; }
.btn--sm { min-height: 36px; padding: 0.4rem 0.8rem; font-size: var(--text-xs); }
.btn--lg { min-height: 52px; padding: 0.85rem 1.6rem; font-size: var(--text-base); }

/* ---------- 5. Başlık / navigasyon ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--ink-100);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  text-decoration: none;
  flex-shrink: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--brand-500), var(--brand-700));
  color: #fff;
  box-shadow: 0 6px 14px -6px rgba(200, 31, 38, 0.7);
}

.brand__mark svg { width: 20px; height: 20px; }

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

.nav__link {
  padding: 0.5rem 0.8rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink-600);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.nav__link:hover,
.nav__link[aria-current="page"] { color: var(--ink-900); background: var(--ink-050); }

.nav__actions { display: flex; align-items: center; gap: var(--space-2); margin-left: var(--space-4); }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink-800);
  border-radius: 2px;
}

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 2rem + 4vw, 4.5rem) clamp(2.5rem, 2rem + 3vw, 4rem);
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(224, 45, 45, 0.16), transparent 62%),
    radial-gradient(700px 380px at 92% 0%, rgba(249, 115, 22, 0.12), transparent 60%),
    var(--ink-900);
  color: #e8edf7;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(70% 60% at 50% 0%, #000 30%, transparent 100%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 3vw, 3.5rem);
  align-items: center;
}

.hero__copy { max-width: 34rem; }
.hero h1 { color: #fff; margin-bottom: var(--space-4); }
.hero h1 em { font-style: normal; color: #ff9f9f; }
.hero .lead { color: #b9c4d6; font-size: clamp(0.98rem, 0.94rem + 0.35vw, 1.1rem); max-width: 32rem; }

.hero .eyebrow {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.14);
  color: #ffc9c9;
  text-transform: none;
  letter-spacing: 0.02em;
  font-weight: 650;
  white-space: normal;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: 0;
  list-style: none;
}

.hero__badges li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: #d5dced;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
}

.hero__badges svg { width: 14px; height: 14px; }

/* Sürükle-bırak alanı */
.dropzone {
  display: grid;
  place-items: center;
  gap: var(--space-3);
  padding: clamp(1.8rem, 1.2rem + 3vw, 3rem);
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px dashed rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), background var(--transition);
}

.dropzone.is-dragover {
  background: rgba(224, 45, 45, 0.12);
  border-color: #ff8f8f;
}

.dropzone__icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.dropzone__icon svg { width: 26px; height: 26px; }
.dropzone h2 { color: #fff; font-size: var(--text-xl); margin: 0; }
.dropzone p { margin: 0; color: #aeb9cc; font-size: var(--text-sm); }

.dropzone__hint { font-size: var(--text-xs); color: #8d9ab0; }
.dropzone__hint.is-error { color: var(--danger-600); }

.hero__panel {
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-xl);
  box-shadow: 0 30px 70px -40px rgba(0, 0, 0, 0.8);
}

.hero__panel .dropzone {
  border-radius: var(--radius-lg);
  border-style: dashed;
}

/* Tek araçlı kategori: kart tüm satırı kaplamasın */
.category-block .tool-grid:has(> li:only-child) {
  grid-template-columns: repeat(auto-fill, minmax(228px, 300px));
}

/* ---------- 7. Araç kartları ---------- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: var(--space-4);
  padding: 0;
  list-style: none;
  margin: 0;
}

.tool-grid > li { display: flex; }

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--ink-200);
  box-shadow: var(--shadow-md);
  color: inherit;
}

.tool-card__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--brand-050);
  color: var(--brand-600);
  flex-shrink: 0;
}

.tool-card__icon svg { width: 18px; height: 18px; }

.tool-card__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-900);
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1.3;
}

.tool-card__desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--ink-500);
  flex: 1;
}

.tool-card__meta {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
  font-size: 0.72rem;
  font-weight: 650;
  color: var(--ink-400);
  transition: color var(--transition), gap var(--transition);
}

.tool-card__meta svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.tool-card:hover .tool-card__meta {
  color: var(--brand-600);
  gap: 8px;
}

.tool-card--feature {
  border-color: var(--brand-100);
  background: linear-gradient(168deg, #fff 45%, var(--brand-050));
}

.tool-card--feature .tool-card__icon {
  background: var(--brand-600);
  color: #fff;
}

.tool-card--unavailable {
  opacity: 0.7;
}

.tool-card--unavailable:hover {
  transform: none;
  box-shadow: none;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
}

.tag--new { color: var(--info-600); background: var(--info-050); border-color: #dbeafe; }
.tag--warn { color: var(--warning-600); background: var(--warning-050); border-color: #fde68a; }
.tag--ok { color: var(--success-600); background: var(--success-050); border-color: #a7f3d0; }
.tag--muted { color: var(--ink-500); background: var(--ink-050); border-color: var(--ink-100); }

/* ---------- 7c. Dosya önerisi paneli ---------- */
.suggest-panel {
  display: grid;
  gap: 8px;
  margin-top: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
}

.suggest-panel[hidden] { display: none; }

.suggest-panel__title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 2px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #9fb0c8;
}

.suggest-panel__title::before {
  content: "";
  width: 5px;
  height: 5px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #ff9f9f;
}

.suggest-panel__title svg { display: none; }

.suggest-list {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.suggest-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #e6ecf7;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.suggest-item:hover {
  color: #fff;
  background: rgba(224, 45, 45, 0.16);
  border-color: rgba(255, 143, 143, 0.4);
  transform: translateX(2px);
}

.suggest-item__dot {
  width: 5px;
  height: 5px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #ff9f9f;
}

.suggest-item__name { flex: 1; min-width: 0; }
.suggest-item__desc {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: #93a4bd;
  margin-top: 1px;
}

.suggest-item svg { width: 13px; height: 13px; color: #6f8199; flex-shrink: 0; }
.suggest-item:hover svg { color: #ff9f9f; }

.suggest-empty {
  margin: 0;
  font-size: 0.78rem;
  color: #9fb0c8;
  line-height: 1.5;
}

/* ---------- 7b. Kategori blokları ---------- */
.category-list {
  display: grid;
  gap: var(--space-10);
}

.category-block { display: grid; gap: var(--space-4); }

.category-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-200);
}

.category-head__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  color: var(--brand-600);
  background: #fff;
  border: 1px solid var(--ink-100);
  box-shadow: var(--shadow-xs);
}

.category-head__icon svg { width: 19px; height: 19px; }

.category-head__text { min-width: 0; }

.category-head__text h3 {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.category-head__text p {
  margin: 1px 0 0;
  font-size: var(--text-sm);
  color: var(--ink-500);
}

.category-head__count {
  margin-left: auto;
  flex-shrink: 0;
  padding: 3px 10px;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--ink-500);
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

@media (max-width: 560px) {
  .category-head { flex-wrap: wrap; }
  .category-head__count { margin-left: 0; }
  .category-list { gap: var(--space-8); }
}

/* ---------- 8. Kartlar / paneller ---------- */
.card {
  padding: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}

.card--pad-lg { padding: var(--space-8); }
.card--dark { background: var(--ink-900); color: #dbe3f0; border-color: var(--ink-700); }
.card--dark h2, .card--dark h3 { color: #fff; }

.grid-2 { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

/* ---------- 9. Adımlar ---------- */
.steps {
  counter-reset: step;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  padding: 0;
  list-style: none;
  margin: 0;
}

.steps li {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 22px 20px 20px;
  background: var(--surface);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  counter-increment: step;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.steps li:hover {
  border-color: var(--ink-200);
  box-shadow: var(--shadow-sm);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 4px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--brand-600);
  background: var(--brand-050);
  border: 1px solid var(--brand-100);
  border-radius: 11px;
  font-variant-numeric: tabular-nums;
}

.steps h3 { font-size: 1rem; margin-bottom: 0; }
.steps p { margin: 0; font-size: 0.84rem; line-height: 1.6; color: var(--ink-500); }

/* bağlantı çizgisi (geniş ekranda) */
@media (min-width: 900px) {
  .steps li::after {
    content: "";
    position: absolute;
    top: 40px;
    right: -14px;
    width: 12px;
    height: 2px;
    background: var(--ink-200);
    border-radius: 2px;
  }

  .steps li:last-child::after { display: none; }
}

/* ---------- 10. SSS ---------- */
.faq { display: grid; gap: var(--space-3); }

.faq details {
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
}

.faq summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--ink-900);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--ink-400);
  line-height: 1;
}

.faq details[open] summary::after { content: "−"; }

.faq details p { margin: var(--space-3) 0 0; color: var(--ink-500); font-size: var(--text-sm); }

/* ---------- 11. Formlar ---------- */
.form { display: grid; gap: var(--space-4); }

.field { display: grid; gap: var(--space-2); }

.field label,
.label {
  font-size: var(--text-sm);
  font-weight: 650;
  color: var(--ink-800);
}

.field .hint { font-size: var(--text-xs); color: var(--ink-400); }

.input,
.select,
.textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.6rem 0.85rem;
  font: inherit;
  font-size: var(--text-sm);
  color: var(--ink-900);
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(224, 45, 45, 0.14);
}

.input[aria-invalid="true"] { border-color: var(--danger-600); }

.textarea { min-height: 110px; resize: vertical; }

.field-error { margin: 0; font-size: var(--text-xs); color: var(--danger-600); font-weight: 600; }

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--ink-600);
}

.checkbox input { margin-top: 0.25rem; width: 18px; height: 18px; accent-color: var(--brand-600); }

/* ---------- 12. Uyarılar ---------- */
.alert {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  border: 1px solid transparent;
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
}

.alert--success { color: var(--success-600); background: var(--success-050); border-color: #a7f3d0; }
.alert--error { color: var(--danger-600); background: var(--danger-050); border-color: #fecaca; }
.alert--warning { color: var(--warning-600); background: var(--warning-050); border-color: #fde68a; }
.alert--info { color: var(--info-600); background: var(--info-050); border-color: #dbeafe; }

/* ---------- 13. Araç sayfası ---------- */
.page-head {
  padding-block: clamp(2rem, 1.4rem + 2.4vw, 3.2rem);
  background: linear-gradient(180deg, var(--surface-muted), #fff);
  border-bottom: 1px solid var(--ink-100);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  font-size: var(--text-xs);
  color: var(--ink-400);
}

.breadcrumb a { color: var(--ink-500); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand-600); }
.breadcrumb li + li::before { content: "/"; margin-right: var(--space-2); color: var(--ink-300); }

.tool-layout {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
}

.uploader {
  display: grid;
  place-items: center;
  gap: var(--space-3);
  padding: clamp(2rem, 1.4rem + 3vw, 3.4rem) var(--space-5);
  text-align: center;
  background: var(--surface-muted);
  border: 1.5px dashed var(--ink-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), background var(--transition);
}

.uploader.is-dragover { border-color: var(--brand-500); background: var(--brand-050); }
.uploader__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: #fff; color: var(--brand-600); box-shadow: var(--shadow-sm); }
.uploader__icon svg { width: 24px; height: 24px; }
.uploader h2 { margin: 0; font-size: var(--text-lg); }
.uploader p { margin: 0; font-size: var(--text-sm); color: var(--ink-500); }

.side-list { display: grid; gap: var(--space-2); padding: 0; list-style: none; margin: 0; }
.side-list a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  color: var(--ink-700);
  text-decoration: none;
  border-radius: var(--radius);
  transition: background var(--transition);
  font-size: var(--text-sm);
  font-weight: 600;
}
.side-list a:hover { background: var(--ink-050); color: var(--ink-900); }
.side-list svg { width: 18px; height: 18px; color: var(--brand-600); flex-shrink: 0; }

/* ---------- 14. Kimlik ---------- */
.auth-wrap {
  display: grid;
  place-items: center;
  min-height: calc(100vh - var(--header-h));
  padding: var(--space-10) var(--space-5);
  background: linear-gradient(180deg, var(--surface-muted), #fff);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: var(--space-8);
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.auth-card h1 { font-size: var(--text-2xl); }
.auth-card .muted { font-size: var(--text-sm); color: var(--ink-500); }

/* ---------- 15. Tablo ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--ink-100); border-radius: var(--radius); }

.table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }

.table th,
.table td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--ink-100);
  vertical-align: middle;
}

.table th {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-500);
  background: var(--surface-muted);
}

.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-muted); }

/* ---------- 16. Footer ---------- */
.site-footer {
  padding-block: var(--space-12) var(--space-6);
  background: var(--ink-900);
  color: #a8b4c8;
  font-size: var(--text-sm);
}

.site-footer h4 { color: #fff; font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-4); }
.site-footer a { color: #a8b4c8; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; gap: var(--space-8); grid-template-columns: 1.4fr repeat(3, 1fr); }
.footer-grid ul { display: grid; gap: var(--space-2); padding: 0; list-style: none; margin: 0; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  margin-top: var(--space-10);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-xs);
  color: #8794a9;
}
.footer-brand { display: inline-flex; align-items: center; gap: var(--space-3); color: #fff; font-weight: 700; margin-bottom: var(--space-3); }

/* ---------- 17. Yönetim paneli ---------- */
.admin-body { background: var(--surface-muted); }

.admin-shell { display: grid; grid-template-columns: 248px minmax(0, 1fr); min-height: 100vh; }

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-4);
  background: var(--ink-900);
  color: #c6d0e0;
}

.admin-sidebar .brand { color: #fff; }
.admin-nav { display: grid; gap: 2px; }
.admin-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: #c6d0e0;
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
}
.admin-nav a:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.admin-nav a[aria-current="page"] { background: var(--brand-600); color: #fff; }
.admin-nav svg { width: 18px; height: 18px; }

.admin-main { padding: var(--space-8); max-width: 1200px; }
.admin-head { display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: flex-start; justify-content: space-between; margin-bottom: var(--space-6); }
.admin-head h1 { font-size: var(--text-2xl); margin-bottom: var(--space-1); }
.admin-head p { margin: 0; color: var(--ink-500); font-size: var(--text-sm); }

.mb-6 { margin-bottom: var(--space-6); }
.gap-6 { gap: var(--space-6); }

.badge-self { display: inline-block; margin-left: 0.35rem; padding: 0.05rem 0.45rem; border-radius: 999px; background: var(--brand-050, #eef4ff); color: var(--brand-700); font-size: var(--text-xs); font-weight: 700; vertical-align: middle; }

.pager { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-top: var(--space-4); }
.pager__num { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; min-height: 36px; padding: 0 0.6rem; border: 1px solid var(--ink-100); border-radius: var(--radius); background: #fff; color: var(--ink-800); text-decoration: none; font-size: var(--text-sm); font-weight: 600; }
.pager__num:hover { background: var(--surface-muted); }
.pager__num--here { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
.pager__gap { color: var(--ink-500); }
.pager__total { margin-left: auto; color: var(--ink-500); font-size: var(--text-xs); }

.stat-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

.stat {
  padding: var(--space-5);
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
}

.stat__label { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-400); }
.stat__value { font-size: 1.8rem; font-weight: 800; color: var(--ink-900); letter-spacing: -0.03em; line-height: 1.2; margin-top: var(--space-1); }
.stat__meta { font-size: var(--text-xs); color: var(--ink-400); }

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--success-600); margin-right: 0.4rem; }
.status-dot--warn { background: var(--warning-600); }
.status-dot--fail { background: var(--danger-600); }

/* ---------- 18. Hata sayfası ---------- */
.error-page { display: grid; place-items: center; min-height: 70vh; text-align: center; padding: var(--space-10) var(--space-5); }
.error-page__code { font-size: clamp(4rem, 3rem + 8vw, 8rem); font-weight: 800; letter-spacing: -0.05em; line-height: 1; color: var(--brand-600); }
.error-page h1 { margin-top: var(--space-4); }
.error-page p { max-width: 34rem; margin-inline: auto; color: var(--ink-500); }

/* ---------- 19. Yardımcılar ---------- */
.muted { color: var(--ink-500); }
.small { font-size: var(--text-sm); }
.xs { font-size: var(--text-xs); }
.mono { font-family: var(--font-mono); }
.nowrap { white-space: nowrap; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.stack { display: grid; gap: var(--space-4); }
.hide { display: none !important; }

/* ---------- 20. Responsive ---------- */
@media (max-width: 1024px) {
  .tool-layout { grid-template-columns: minmax(0, 1fr); }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { flex-direction: row; align-items: center; overflow-x: auto; padding: var(--space-3); gap: var(--space-4); }
  .admin-nav { display: flex; gap: var(--space-1); }
  .admin-nav a { white-space: nowrap; }
  .admin-main { padding: var(--space-5); }
}

/* Hero tek sütuna düşer */
@media (max-width: 940px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-8);
  }

  .hero__copy { max-width: none; }
  .hero .lead { max-width: none; }
}

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

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-4);
    background: #fff;
    border-bottom: 1px solid var(--ink-100);
    box-shadow: var(--shadow-md);
  }

  .nav.is-open { display: flex; }
  .nav__actions { margin: var(--space-2) 0 0; }
  .nav__actions .btn { width: 100%; }
  .site-header__inner { position: relative; }

  .hero { padding-block: var(--space-10) var(--space-8); }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .auth-card { padding: var(--space-6); }
  .table th:nth-child(n + 4),
  .table td:nth-child(n + 4) { display: none; }
}

@media (max-width: 560px) {
  .container { padding-inline: var(--space-4); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .tool-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn--inline { width: auto; }
  .hero__panel { padding: var(--space-3); }
  .dropzone { padding: var(--space-6) var(--space-4); }
}

/* ---------- 15. Araç seçenek paneli ---------- */
.tool-options {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  background: var(--ink-050);
}

.tool-options legend {
  padding: 0 6px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--ink-700);
}

.tool-options .field { margin-top: var(--space-3); gap: 5px; }
.tool-options .field:first-of-type { margin-top: var(--space-2); }

.tool-options__grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  margin-top: var(--space-3);
}

.tool-options__grid .field { margin-top: 0; }

.tool-options__grid--4 { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); }

.tool-options .hint { display: block; margin-top: 4px; }

.tool-options__note {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-600);
}

.tool-options [data-reveal-when][hidden] { display: none !important; }

@media (max-width: 560px) {
  .tool-options__grid,
  .tool-options__grid--4 { grid-template-columns: 1fr 1fr; }
}

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

@media print {
  .site-header, .site-footer, .nav, .btn { display: none !important; }
  body { color: #000; }
}