/* ==========================================================================
   Kılıç Enerji Araç Takip Sistemi — Stylesheet
   Faz 1   : ilk minimal mobile-first temel
   Faz 6D  : a11y polish (sr-only, focus-visible, role=alert, kontrast)
   Faz 6F  : mobile hamburger via <details>/<summary> (no-JS)
   Faz 9B  : global design system — CSS variables (tokens) + kurumsal görünüm
   --------------------------------------------------------------------------
   Class isimleri Faz 9A öncesi ile birebir aynıdır; bu dosya sadece görsel
   tokenları, spacing/typography/shadow ölçeklerini ve kurumsal sade görünümü
   sağlar. Template dosyalarında yapısal değişiklik yapılmamıştır.
   ========================================================================== */


/* --------------------------------------------------------------------------
   1) DESIGN TOKENS (CSS variables)
   Tüm renk/boşluk/font değerleri buradan okunur. Gelecek fazlarda paleti
   güncellemek için yalnızca :root bloğunu değiştirmek yeter.
   -------------------------------------------------------------------------- */
:root {
  /* Brand */
  --color-primary:        #0b3d91;   /* Kılıç Enerji mavisi (korundu) */
  --color-primary-dark:   #082c69;
  --color-primary-soft:   #e6ecf8;
  --color-primary-tint:   #cdd9f3;
  --color-on-primary:     #ffffff;
  --color-accent:         #ffd33d;   /* logo sarısı, sınırlı kullanım */

  /* Surfaces */
  --color-bg:             #f4f6fb;
  --color-surface:        #ffffff;
  --color-surface-soft:   #fafbfd;
  --color-surface-alt:    #f4f6fb;
  --color-border:         #e3e8f3;
  --color-border-strong:  #c8d0e0;

  /* Text */
  --color-text:           #1a1f2c;
  --color-text-muted:     #5b6478;
  --color-text-subtle:    #93a0bf;

  /* Status (semantic) */
  --color-success:        #155724;
  --color-success-bg:     #dcf5e1;
  --color-warning:        #806100;
  --color-warning-bg:     #fff3cd;
  --color-warning-edge:   #ffe88a;
  --color-warning-soft:   #fff8e1;
  --color-critical:       #8a3c0a;
  --color-critical-bg:    #ffe2cc;
  --color-danger:         #7a1e1e;
  --color-danger-bg:      #fde2e2;
  --color-danger-edge:    #a3573b;
  --color-info:           #3a4664;
  --color-info-bg:        #e6ecf8;
  --color-violet:         #3f2882;
  --color-violet-bg:      #e8e3fb;

  /* Spacing scale (8-base) */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
  --font-size-xs:    12px;
  --font-size-sm:    14px;
  --font-size-base:  16px;   /* iOS zoom-safe */
  --font-size-md:    15px;
  --font-size-lg:    18px;
  --font-size-xl:    22px;
  --font-size-2xl:   28px;
  --line-height-base: 1.5;
  --line-height-tight: 1.25;
  --letter-spacing-caps: .5px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-xs:  0 1px 2px rgba(11, 31, 70, .04);
  --shadow-sm:  0 1px 3px rgba(11, 31, 70, .06);
  --shadow-md:  0 4px 12px rgba(11, 31, 70, .08);
  --shadow-lg:  0 10px 24px rgba(11, 31, 70, .12);
  --shadow-card: 0 1px 2px rgba(11, 31, 70, .04), 0 4px 12px rgba(11, 31, 70, .05);

  /* Focus ring (Faz 6D korundu) */
  --focus-ring: 0 0 0 2px rgba(11, 61, 145, .22);
  --focus-color: var(--color-primary);
  --focus-color-on-dark: var(--color-accent);

  /* Transition */
  --transition-fast: 120ms ease-out;
  --transition-base: 180ms ease-out;
}


/* --------------------------------------------------------------------------
   2) RESET + BASE TYPOGRAPHY
   -------------------------------------------------------------------------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.app {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--color-text);
  line-height: var(--line-height-tight);
  letter-spacing: -0.01em;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 var(--space-4); width: 100%; }


/* --------------------------------------------------------------------------
   3) TOPBAR / NAVIGATION
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--color-primary);
  color: var(--color-on-primary);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--shadow-sm);
}
.topbar__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-on-primary);
  font-weight: 600;
  letter-spacing: -.01em;
}
.brand:hover { text-decoration: none; }
.brand__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: var(--color-text);
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -.02em;
  box-shadow: 0 1px 0 rgba(0, 0, 0, .08);
}
.brand__name { font-size: var(--font-size-md); letter-spacing: .2px; }

.topnav {
  margin-left: auto;
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}
.topnav a {
  color: var(--color-primary-tint);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.topnav a:hover {
  color: var(--color-on-primary);
  background: rgba(255, 255, 255, .06);
  text-decoration: none;
}
.topnav__user { color: var(--color-primary-tint); font-size: var(--font-size-sm); }
.topnav__user small { opacity: .8; }
.topnav__logout { display: inline; margin: 0; padding: 0; }


/* --------------------------------------------------------------------------
   4) MAIN + FOOTER
   -------------------------------------------------------------------------- */
.main { flex: 1; padding: var(--space-5) 0; }

.footer {
  padding: var(--space-4) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}


/* --------------------------------------------------------------------------
   5) BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  cursor: pointer;
  font-size: var(--font-size-md);
  font-weight: 500;
  background: var(--color-surface);
  color: var(--color-primary);
  transition: background var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}
.btn:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary-tint);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xs);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-on-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--color-on-primary);
  border-color: rgba(255, 255, 255, .35);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .55);
  color: var(--color-on-primary);
}

.btn--ghost-light {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}
.btn--ghost-light:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary-tint);
  color: var(--color-primary);
}

.btn--block { display: flex; width: 100%; }


/* --------------------------------------------------------------------------
   6) MESSAGES (Django messages framework)
   -------------------------------------------------------------------------- */
.messages { list-style: none; padding: 0; margin: 0 0 var(--space-4); }
.message {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  background: var(--color-warning-bg);
  border: 1px solid var(--color-warning-edge);
  color: var(--color-warning);
  font-size: var(--font-size-sm);
}
.message--error { background: var(--color-danger-bg); color: var(--color-danger); border-color: rgba(122, 30, 30, .15); }
.message--success { background: var(--color-success-bg); color: var(--color-success); border-color: rgba(21, 87, 36, .15); }


/* --------------------------------------------------------------------------
   7) AUTH (login)
   -------------------------------------------------------------------------- */
.auth-card {
  max-width: 380px;
  margin: var(--space-7) auto;
  background: var(--color-surface);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.auth-card__title { margin: 0 0 var(--space-1); font-size: var(--font-size-xl); }
.auth-card__subtitle { margin: 0 0 var(--space-5); color: var(--color-text-muted); font-size: var(--font-size-sm); }

.field { margin-bottom: var(--space-3); }
.field label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}
.field input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}
.form-error {
  color: var(--color-danger);
  background: var(--color-danger-bg);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  border: 1px solid rgba(122, 30, 30, .15);
  font-size: var(--font-size-sm);
}


/* --------------------------------------------------------------------------
   8) DASHBOARD
   -------------------------------------------------------------------------- */
.dashboard__header h1 { font-size: var(--font-size-xl); margin: 0 0 var(--space-1); }
.dashboard__phase { color: var(--color-text-muted); margin: 0 0 var(--space-5); font-size: var(--font-size-sm); }


/* --------------------------------------------------------------------------
   9) CARDS (genel + metric + a.card hover)
   -------------------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
@media (min-width: 600px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .cards { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.card h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
}
.card__metric {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0;
  color: var(--color-primary);
  letter-spacing: -.02em;
  line-height: 1.1;
}
.card__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-subtle);
  margin: var(--space-1) 0 0;
}
.card--placeholder .card__metric { color: var(--color-border-strong); }

a.card {
  color: inherit;
  text-decoration: none;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-base),
              border-color var(--transition-fast);
}
a.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-tint);
  text-decoration: none;
}


/* --------------------------------------------------------------------------
   10) SCOPE LIST (dashboard footer scope)
   -------------------------------------------------------------------------- */
.scope {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.scope h2 { margin: 0 0 var(--space-3); font-size: var(--font-size-lg); }
.scope__list { list-style: none; padding: 0; margin: 0; }
.scope__list li {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-border);
}
.scope__list li:last-child { border-bottom: 0; }
.scope__list em { font-style: normal; color: var(--color-text-muted); font-size: var(--font-size-sm); }
.scope--out .scope__list em { color: var(--color-danger-edge); }


/* --------------------------------------------------------------------------
   11) VEHICLES list / header / filterbar
   -------------------------------------------------------------------------- */
.vehicles__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.vehicles__header h1 { font-size: var(--font-size-xl); margin: 0; }
.vehicles__count { color: var(--color-text-muted); margin: 0; font-size: var(--font-size-sm); }
.vehicles__header-right { display: flex; gap: var(--space-3); align-items: center; }

.filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  background: var(--color-surface);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}
.filterbar__search {
  flex: 1 1 220px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.filterbar select {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.filterbar__search:focus,
.filterbar select:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--focus-ring); }


/* --------------------------------------------------------------------------
   12) TABLES (vehicles__table + vd-table)
   -------------------------------------------------------------------------- */
.vehicles__table-wrap {
  overflow-x: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.vehicles__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  min-width: 720px;
}
.vehicles__table caption {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-muted);
  font-weight: 500;
}
.vehicles__table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-soft);
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
}
.vehicles__table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.vehicles__table tbody tr { transition: background var(--transition-fast); }
.vehicles__table tbody tr:hover { background: var(--color-surface-soft); }
.vehicles__table tr:last-child td { border-bottom: 0; }
.vehicles__table .plate {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.vehicles__table .plate a { color: var(--color-primary); text-decoration: none; }
.vehicles__table .plate a:hover { text-decoration: underline; }


/* --------------------------------------------------------------------------
   13) BADGES (status pills)
   -------------------------------------------------------------------------- */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  border: 1px solid transparent;
}
/* expiry-based color codes */
.badge--ok       { background: var(--color-success-bg);   color: var(--color-success);   border-color: rgba(21, 87, 36, .15); }
.badge--warn     { background: var(--color-warning-bg);   color: var(--color-warning);   border-color: rgba(128, 97, 0, .18); }
.badge--critical { background: var(--color-critical-bg);  color: var(--color-critical);  border-color: rgba(138, 60, 10, .15); }
.badge--expired  { background: var(--color-danger-bg);    color: var(--color-danger);    border-color: rgba(122, 30, 30, .15); }
.badge--unknown  { background: var(--color-info-bg);      color: var(--color-info);      border-color: rgba(58, 70, 100, .12); }
/* status pill aliases */
.badge--active   { background: var(--color-success-bg);   color: var(--color-success); }
.badge--sold     { background: var(--color-danger-bg);    color: var(--color-danger); }
.badge--passive  { background: var(--color-info-bg);      color: var(--color-info); }


/* --------------------------------------------------------------------------
   14) UTILITIES + EMPTY STATE
   -------------------------------------------------------------------------- */
.muted { color: var(--color-text-muted); }   /* Faz 6D AA-uyumlu kontrast */

.empty {
  background: var(--color-surface);
  padding: var(--space-7);
  text-align: center;
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  box-shadow: var(--shadow-card);
  border: 1px dashed var(--color-border-strong);
  font-size: var(--font-size-sm);
}
.empty--inline {
  padding: var(--space-4);
  margin: 0;
  border-style: dashed;
  background: var(--color-surface-soft);
}


/* --------------------------------------------------------------------------
   15) SETTINGS PANEL + INFO BOX
   -------------------------------------------------------------------------- */
.settings-page__header { margin-bottom: var(--space-4); }
.settings-page__header h1 { font-size: var(--font-size-xl); margin: 0 0 var(--space-1); }

.info-box {
  background: var(--color-warning-soft);
  border: 1px solid var(--color-warning-edge);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}
.info-box code {
  background: rgba(0, 0, 0, .06);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
}
.info-box--muted {
  background: var(--color-surface-soft);
  border-color: var(--color-border);
  color: var(--color-info);
}

.field--inline { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-2); }
.field--inline label { margin: 0; }
.field--inline input[type="checkbox"] { width: 20px; height: 20px; min-height: 20px; padding: 0; }

.rule-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-3); }
@media (min-width: 720px) { .rule-grid { grid-template-columns: repeat(3, 1fr); } }
.rule-card {
  background: var(--color-surface-soft);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.rule-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  gap: var(--space-2);
  flex-wrap: wrap;
}
.rule-card__head h3 { margin: 0; font-size: var(--font-size-md); }

.meta-info {
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-top: var(--space-4);
}
.meta-info h2 { font-size: var(--font-size-lg); margin: 0 0 var(--space-3); }


/* --------------------------------------------------------------------------
   16) NOTIFICATION HISTORY
   -------------------------------------------------------------------------- */
.cards--counts { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 600px) { .cards--counts { grid-template-columns: repeat(5, 1fr); } }
.card--mini h2 { text-transform: uppercase; letter-spacing: var(--letter-spacing-caps); font-size: var(--font-size-xs); }
.card--mini .card__metric { font-size: var(--font-size-xl); }

.history-page { /* container only */ }
.history__preview { max-width: 360px; }

/* Status badges (NotificationLog) */
.badge--status-pending   { background: var(--color-info-bg);    color: var(--color-info); }
.badge--status-sent      { background: var(--color-success-bg); color: var(--color-success); }
.badge--status-failed    { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge--status-skipped   { background: var(--color-warning-bg); color: var(--color-warning); }
.badge--status-simulated { background: var(--color-violet-bg);  color: var(--color-violet); }

.card--status-pending   .card__metric { color: var(--color-info); }
.card--status-sent      .card__metric { color: var(--color-success); }
.card--status-failed    .card__metric { color: var(--color-danger); }
.card--status-skipped   .card__metric { color: var(--color-warning); }
.card--status-simulated .card__metric { color: var(--color-violet); }


/* --------------------------------------------------------------------------
   17) IMPORT REVIEW row coloring
   -------------------------------------------------------------------------- */
.row-out-of-scope td   { background: var(--color-surface-alt); color: var(--color-text-muted); }
.row-needs-review td   { background: var(--color-warning-soft); }
.row-high td           { background: var(--color-danger-bg); }
.row-high td:first-child { border-left: 3px solid var(--color-danger); }
.import-review .vehicles__table td { vertical-align: top; }
.import-review .vehicles__table small { font-size: var(--font-size-xs); word-break: break-word; }


/* --------------------------------------------------------------------------
   18) TELEGRAM STATUS panel
   -------------------------------------------------------------------------- */
.telegram-status {
  background: var(--color-surface);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}
.telegram-status h2 { margin: 0 0 var(--space-3); font-size: var(--font-size-lg); }
.test-notification-form {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px dashed var(--color-border);
}


/* --------------------------------------------------------------------------
   19) DASHBOARD section title + upcoming list
   -------------------------------------------------------------------------- */
.dashboard__section-title {
  margin: var(--space-5) 0 var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
}
.card--overdue .card__metric { color: var(--color-danger); }

.upcoming {
  background: var(--color-surface);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-3);
}
.upcoming h3 { margin: 0 0 var(--space-3); font-size: var(--font-size-md); }
.upcoming--overdue h3 { color: var(--color-danger); }


/* --------------------------------------------------------------------------
   20) VEHICLE DETAIL
   -------------------------------------------------------------------------- */
.vd-back {
  display: inline-block;
  margin-bottom: var(--space-1);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}
.vd-back:hover { color: var(--color-primary); text-decoration: none; }

.vd-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: flex-start;
  justify-content: space-between;
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-3);
}
.vd-header__main { flex: 1 1 220px; }
.vd-header__owner { margin: var(--space-1) 0; color: var(--color-text-muted); }
.plate--big {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin: var(--space-1) 0;
  letter-spacing: 1px;
}
.vd-header__actions { display: flex; gap: var(--space-2); }

.vd-nav {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--color-surface);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
  overflow-x: auto;
}
.vd-nav a {
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  padding: var(--space-1) var(--space-1);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.vd-nav a:hover { background: var(--color-primary-soft); text-decoration: none; }

.vd-section {
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
  scroll-margin-top: 70px;
}
.vd-section h2 { margin: 0 0 var(--space-3); font-size: var(--font-size-lg); }
.vd-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}
.vd-section__head h2 { margin: 0; }

.vd-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-3);
  margin: 0;
}
@media (min-width: 600px) { .vd-grid { grid-template-columns: 180px 1fr; } }
.vd-grid dt {
  color: var(--color-text-muted);
  font-weight: 600;
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: var(--font-size-sm);
}
.vd-grid dd {
  margin: 0;
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-border);
}
.vd-grid dd code {
  background: var(--color-surface-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
}

.vd-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.vd-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.vd-list__title { font-weight: 600; }
.vd-list__title a { color: var(--color-primary); text-decoration: none; }
.vd-list__title a:hover { text-decoration: underline; }
.vd-list__meta { color: var(--color-text-muted); font-size: var(--font-size-sm); flex: 1 1 auto; }

.vd-table { width: 100%; border-collapse: collapse; font-size: var(--font-size-sm); }
.vd-table th, .vd-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.vd-table th {
  background: var(--color-surface-soft);
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
  color: var(--color-text-muted);
}
.vd-table tbody tr:last-child td { border-bottom: 0; }


/* --------------------------------------------------------------------------
   21) FORMS (mobil dostu — 16px input, 44px hedef yükseklik)
   -------------------------------------------------------------------------- */
.form-page { max-width: 760px; margin: 0 auto; }
.form-page__header { margin-bottom: var(--space-3); }
.form-page__header h1 { font-size: var(--font-size-lg); margin: var(--space-1) 0 0; }

.model-form {
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.model-form fieldset { border: 0; padding: 0; margin: 0 0 var(--space-5); }
.model-form legend {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
  margin-bottom: var(--space-2);
}
.model-form .field { margin-bottom: var(--space-3); }
.model-form .field label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
}
.model-form .field input[type="text"],
.model-form .field input[type="email"],
.model-form .field input[type="number"],
.model-form .field input[type="date"],
.model-form .field input[type="search"],
.model-form .field select,
.model-form .field textarea,
.model-form .field input[type="file"] {
  width: 100%;
  font-size: var(--font-size-base); /* 16px iOS zoom önleme */
  padding: var(--space-3);
  min-height: 44px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  box-sizing: border-box;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.model-form .field textarea { min-height: 80px; resize: vertical; }
.model-form .field input:focus,
.model-form .field select:focus,
.model-form .field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}
.model-form .help {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  margin: var(--space-1) 0 0;
}
.model-form .errorlist {
  color: var(--color-danger);
  font-size: var(--font-size-xs);
  margin: var(--space-1) 0 0;
  padding-left: var(--space-4);
}
.form-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}
.form-actions .btn {
  min-height: 44px;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

/* mobil tweaks */
@media (max-width: 600px) {
  .vd-header { padding: var(--space-3); }
  .plate--big { font-size: var(--font-size-xl); }
  .vd-section { padding: var(--space-3); }
  .card { padding: var(--space-4); }
  .model-form { padding: var(--space-4); }
}


/* --------------------------------------------------------------------------
   22) Faz 6D — accessibility polish
   sr-only, :focus-visible outline, errorlist styling, reduced-motion
   (Faz 9B'de korundu — token sistemine bağlandı)
   -------------------------------------------------------------------------- */

/* Visually hidden but available to screen readers (used for filterbar labels). */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Visible focus indicator for keyboard users — design-aligned with Kılıç blue. */
.btn:focus-visible,
a.card:focus-visible,
.topnav a:focus-visible,
.vd-nav a:focus-visible,
.brand:focus-visible,
.vd-back:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}
.topnav a:focus-visible { outline-color: var(--focus-color-on-dark); }
.brand:focus-visible    { outline-color: var(--focus-color-on-dark); }

/* Inputs have a focus box-shadow; outline-offset for parity. */
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible,
.filterbar__search:focus-visible,
.filterbar select:focus-visible,
.filterbar input:focus-visible,
.model-form .field input:focus-visible,
.model-form .field select:focus-visible,
.model-form .field textarea:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 1px;
}

/* errorlist: visible block when role="alert" set on template side */
.errorlist[role="alert"],
.form-error[role="alert"] {
  /* selector exists for style-consistency hooks — no extra paint */
}

/* Respect prefers-reduced-motion for transitions/transforms. */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  a.card:hover { transform: none; }
}


/* --------------------------------------------------------------------------
   23) Mobile hamburger — checkbox hack (Faz 9C-pre-fix-2, no-JS)
   --------------------------------------------------------------------------
   Tasarım kararı:
   - Faz 6F'te <details>/<summary> kullanılıyordu, ama Chrome'da <details>
     kapalıyken summary dışı children render edilmiyor (HTML5 native davranış,
     `display: contents` ile bypass edilemiyor). Faz 9C-pre-fix-2'de checkbox
     hack ile değiştirildi.
   - Yapı: <input type="checkbox" id="topnav-menu-toggle"> + <label> + <nav>
   - Desktop ≥600px: label gizli, nav koşulsuz flex (linkler her zaman görünür).
   - Mobil <600px: label hamburger butonu olarak görünür; nav default kapalı,
     checkbox checked olunca dropdown panel açılır.
   - No-JS: tamamen CSS, JavaScript gerek yok.
   - A11y: <label for> semantic bağlantısı, sr-only checkbox, aria-controls.
   -------------------------------------------------------------------------- */

/* Checkbox kendisi her zaman görünmez (sr-only). */
.topnav-toggle__checkbox { /* sr-only sınıfı zaten visually hidden */ }

/* Hamburger label: desktop default gizli, mobil görünür. */
.topnav-toggle__summary {
  display: none;
  margin-left: auto;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

@media (max-width: 599px) {
  /* Mobil hamburger butonu */
  .topnav-toggle__summary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 44px;
    min-height: 44px;
    padding: var(--space-2) var(--space-3);
    color: var(--color-on-primary);
    font-size: var(--font-size-md);
    border: 1px solid var(--color-primary-tint);
    border-radius: var(--radius-md);
    background: transparent;
    transition: background var(--transition-fast), border-color var(--transition-fast);
  }
  .topnav-toggle__summary:hover {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .55);
  }
  .topnav-toggle__icon { font-size: 20px; line-height: 1; }
  .topnav-toggle__label { font-weight: 600; }

  /* Mobil: nav default kapalı; checked olunca dropdown panel görünür. */
  .topnav-toggle__checkbox ~ .topnav { display: none; }
  .topnav-toggle__checkbox:checked ~ .topnav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    position: absolute;
    right: var(--space-3);
    top: calc(100% - var(--space-1));
    background: var(--color-primary);
    padding: var(--space-2);
    min-width: 240px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 11;
  }
  .topnav-toggle__checkbox:checked ~ .topnav a,
  .topnav-toggle__checkbox:checked ~ .topnav .topnav__user,
  .topnav-toggle__checkbox:checked ~ .topnav .topnav__logout {
    width: 100%;
    min-height: 44px;
    padding: var(--space-3);
    display: flex;
    align-items: center;
    border-radius: var(--radius-sm);
  }
  .topnav-toggle__checkbox:checked ~ .topnav a:hover {
    background: rgba(255, 255, 255, .08);
    text-decoration: none;
  }
  .topnav-toggle__checkbox:checked ~ .topnav .topnav__user {
    border-top: 1px dashed rgba(255, 255, 255, .2);
    margin-top: var(--space-1);
    padding-top: var(--space-3);
    color: var(--color-primary-tint);
  }
  .topnav-toggle__checkbox:checked ~ .topnav .topnav__logout button {
    width: 100%;
    justify-content: center;
  }
}

/* Focus indicator: klavye kullanıcısı checkbox'a Tab atınca, label outline gösterir.
   sr-only checkbox direkt görünmez ama :focus-visible'i label'a aktarmak için
   adjacent sibling selector kullanıyoruz (label ondan ÖNCE geldiği için ~+: yok,
   ama input :focus-visible ise label'ı görsel vurgulayabiliriz CSS sibling ile). */
.topnav-toggle__checkbox:focus-visible + .topnav-toggle__summary {
  outline: 2px solid var(--focus-color-on-dark);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}