/* =====================================================================
   ÖN MUHASEBE — TASARIM SİSTEMİ
   KolayBi (ofis.kolaybi.com) arayüzünden birebir çıkarılmıştır.
   Hiçbir framework'e bağımlı değildir. Tek dosya, vanilla CSS.
   ===================================================================== */

/* ---------------------------------------------------------------------
   1. TOKENLAR
   --------------------------------------------------------------------- */
:root {
  /* Marka */
  --c-primary:        #4D80EE;   /* ana mavi — butonlar, linkler, form etiketleri */
  --c-primary-hover:  #3D6FDD;
  --c-primary-active: #3260CC;
  --c-primary-soft:   #E8EFFE;   /* aktif menü / badge zemini */
  --c-primary-softer: #F3F7FF;
  --c-primary-border: #BCD0FA;

  --c-indigo:         #2C6FD8;   /* "Giden Kutusu", "Durum Değiştir" */
  --c-indigo-hover:   #245FBE;

  --c-success:        #16A34A;
  --c-success-hover:  #128A3E;
  --c-success-soft:   #DCFCE7;
  --c-success-text:   #15803D;

  --c-warning:        #E0A211;   /* "Alış İade Faturası Oluştur", "İşlemler" */
  --c-warning-hover:  #C68D0B;
  --c-warning-soft:   #FEF3C7;
  --c-warning-text:   #B45309;

  --c-danger:         #DC2626;
  --c-danger-hover:   #B91C1C;
  --c-danger-soft:    #FEE2E2;
  --c-danger-text:    #B91C1C;

  --c-info-soft:      #E0F2FE;
  --c-info-text:      #0369A1;

  /* Nötr (slate) */
  --c-bg:             #F8FAFC;   /* sayfa zemini */
  --c-surface:        #FFFFFF;   /* kart/panel */
  --c-surface-2:      #F8FAFC;   /* tablo başlığı, hover */
  --c-surface-3:      #F1F5F9;
  --c-border:         #E2E8F0;
  --c-border-strong:  #CBD5E1;
  --c-text:           #1E293B;
  --c-text-muted:     #64748B;
  --c-text-faint:     #94A3B8;
  --c-text-invert:    #FFFFFF;

  /* Tipografi */
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --fs-xs:   11px;
  --fs-sm:   12px;
  --fs-base: 14px;   /* KolayBi tabanı */
  --fs-md:   15px;
  --fs-lg:   16px;
  --fs-xl:   18px;
  --fs-2xl:  22px;
  --fs-3xl:  28px;
  --lh: 1.5;

  /* Ölçü */
  --r-sm: 4px;
  --r:    6px;       /* varsayılan köşe */
  --r-md: 8px;       /* kart */
  --r-lg: 12px;
  --r-full: 999px;

  --h-control: 41px;       /* input / normal buton */
  --h-control-sm: 30px;    /* küçük buton */
  --h-topbar: 56px;
  --w-sidebar: 224px;
  --w-sidebar-collapsed: 64px;
  --w-drawer: 530px;

  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 20px; --space-6: 24px;
  --space-8: 32px; --space-10: 40px;

  /* Gölge */
  --sh-sm: 0 1px 2px rgba(15,23,42,.05);
  --sh:    0 1px 3px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.04);
  --sh-md: 0 4px 12px rgba(15,23,42,.08);
  --sh-lg: 0 12px 32px rgba(15,23,42,.14);

  --transition: 150ms ease;
  --z-drawer: 900; --z-modal: 1000; --z-toast: 1100; --z-dropdown: 800;
}

/* ---------------------------------------------------------------------
   2. RESET
   --------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: var(--lh);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure { margin: 0; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: var(--r-full); border: 2px solid var(--c-bg); }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------------------------------------------------------------
   3. UYGULAMA İSKELETİ
   --------------------------------------------------------------------- */
.app { display: flex; min-height: 100vh; }

/* --- Sidebar --- */
.sidebar {
  width: var(--w-sidebar);
  flex: 0 0 var(--w-sidebar);
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  transition: width var(--transition), flex-basis var(--transition);
}
.sidebar.is-collapsed { width: var(--w-sidebar-collapsed); flex-basis: var(--w-sidebar-collapsed); }
.sidebar.is-collapsed .nav-link span,
.sidebar.is-collapsed .sidebar__logo-text { display: none; }

.sidebar__brand {
  height: var(--h-topbar);
  display: flex; align-items: center; gap: var(--space-2);
  padding: 0 var(--space-4);
  border-bottom: 1px solid transparent;
}
.sidebar__logo { width: 28px; height: 28px; flex: 0 0 28px; }
.sidebar__logo-text { font-weight: 700; font-size: var(--fs-lg); letter-spacing: -.3px; }

.nav { padding: var(--space-2) var(--space-2); overflow-y: auto; flex: 1; }
.nav-link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 11px var(--space-3);
  border-radius: var(--r);
  color: var(--c-text); font-size: var(--fs-base);
  text-decoration: none; white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
.nav-link:hover { background: var(--c-surface-2); text-decoration: none; }
.nav-link .icon { width: 18px; height: 18px; flex: 0 0 18px; opacity: .75; }
.nav-link.is-active { background: var(--c-primary-soft); color: var(--c-primary); font-weight: 600; }
.nav-link.is-active .icon { opacity: 1; }

.sidebar__collapse {
  align-self: flex-start; margin: var(--space-2) var(--space-4) var(--space-4);
  width: 30px; height: 30px; border-radius: var(--r-full);
  border: 1px solid var(--c-border); background: var(--c-surface);
  display: grid; place-items: center; color: var(--c-text-muted);
}

/* --- Ana bölge --- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: var(--h-topbar);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; gap: var(--space-3);
  padding: 0 var(--space-5);
  position: sticky; top: 0; z-index: 50;
}
.topbar__company {
  display: flex; align-items: center; gap: var(--space-2);
  height: 38px; padding: 0 var(--space-3);
  border: 1px solid var(--c-border); border-radius: var(--r);
  background: var(--c-surface); color: var(--c-text); font-size: var(--fs-base);
}
.topbar__spacer { flex: 1; }
.topbar__actions { display: flex; align-items: center; gap: var(--space-2); }
.icon-btn {
  width: 34px; height: 34px; border: 0; background: transparent;
  border-radius: var(--r); color: var(--c-text-muted);
  display: grid; place-items: center;
}
.icon-btn:hover { background: var(--c-surface-3); color: var(--c-text); }

/* --- Modül sekmeleri (sayfa üstü) --- */
.module-tabs {
  display: flex; gap: var(--space-1);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 0 var(--space-5);
  overflow-x: auto;
}
.module-tab {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 14px var(--space-3);
  font-size: var(--fs-base); color: var(--c-text-muted);
  border-bottom: 2px solid transparent; white-space: nowrap;
  text-decoration: none;
}
.module-tab:hover { color: var(--c-text); text-decoration: none; }
.module-tab.is-active { color: var(--c-primary); font-weight: 600; border-bottom-color: var(--c-primary); }

/* --- Sayfa başlığı --- */
.page { padding: var(--space-5); }
.page-head {
  display: flex; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-4); flex-wrap: wrap;
}
.page-head__icon {
  width: 42px; height: 42px; border-radius: var(--r-md);
  background: var(--c-surface-3); color: var(--c-text-muted);
  display: grid; place-items: center; flex: 0 0 42px;
}
.page-head__title { font-size: var(--fs-2xl); font-weight: 700; letter-spacing: -.3px; }
.page-head__sub { font-size: var(--fs-sm); color: var(--c-text-muted); }
.page-head__actions { margin-left: auto; display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* ---------------------------------------------------------------------
   4. BUTONLAR
   --------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  height: var(--h-control); padding: 0 14px;
  border-radius: var(--r); border: 1px solid transparent;
  font-size: var(--fs-base); font-weight: 500; line-height: 1;
  background: var(--c-surface); color: var(--c-text);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap; text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:disabled, .btn.is-disabled { opacity: .5; pointer-events: none; }
.btn .icon { width: 16px; height: 16px; }

.btn--primary  { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-hover); }
.btn--indigo   { background: var(--c-indigo); color: #fff; }
.btn--indigo:hover { background: var(--c-indigo-hover); }
.btn--success  { background: var(--c-success); color: #fff; }
.btn--success:hover { background: var(--c-success-hover); }
.btn--warning  { background: var(--c-warning); color: #fff; }
.btn--warning:hover { background: var(--c-warning-hover); }
.btn--danger   { background: var(--c-danger); color: #fff; }
.btn--danger:hover { background: var(--c-danger-hover); }
.btn--default  { border-color: var(--c-border-strong); }
.btn--default:hover { background: var(--c-surface-2); }
.btn--outline  { border-color: var(--c-primary); color: var(--c-primary); background: transparent; }
.btn--outline:hover { background: var(--c-primary-soft); }
.btn--outline-success { border-color: var(--c-success); color: var(--c-success-text); background: transparent; }
.btn--outline-success:hover { background: var(--c-success-soft); }
.btn--ghost    { background: transparent; color: var(--c-text-muted); }
.btn--ghost:hover { background: var(--c-surface-3); color: var(--c-text); }

.btn--sm { height: var(--h-control-sm); padding: 0 10px; font-size: var(--fs-sm); border-radius: var(--r-sm); }
.btn--icon { width: var(--h-control); padding: 0; }
.btn--icon.btn--sm { width: var(--h-control-sm); }
.btn--block { width: 100%; }

/* Split buton (Kaydet ▾) */
.btn-split { display: inline-flex; }
.btn-split > .btn:first-child { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.btn-split > .btn:last-child  { border-top-left-radius: 0; border-bottom-left-radius: 0;
                                padding: 0 8px; border-left: 1px solid rgba(255,255,255,.25); }

/* FAB */
.fab {
  position: fixed; right: 28px; bottom: 28px; z-index: 60;
  width: 56px; height: 56px; border-radius: var(--r-full);
  background: var(--c-primary); color: #fff; border: 0;
  display: grid; place-items: center; box-shadow: var(--sh-lg);
}
.fab:hover { background: var(--c-primary-hover); }

/* ---------------------------------------------------------------------
   5. KART / PANEL
   --------------------------------------------------------------------- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}
.card__head {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--c-border);
}
.card__title { font-size: var(--fs-lg); font-weight: 700; }
.card__sub { font-size: var(--fs-sm); color: var(--c-text-muted); }
.card__actions { margin-left: auto; display: flex; gap: var(--space-2); }
.card__body { padding: var(--space-5); }
.card__foot { padding: var(--space-4) var(--space-5); border-top: 1px solid var(--c-border); }

/* KPI kartı (4'lü satır) */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--space-4); }
.kpi {
  background: var(--c-surface); border: 1.5px solid var(--c-border);
  border-radius: var(--r-md); padding: var(--space-4) var(--space-5);
  display: flex; align-items: center; gap: var(--space-4);
}
.kpi__body { flex: 1; min-width: 0; }
.kpi__label { font-size: var(--fs-base); color: var(--c-text); font-weight: 500; }
.kpi__value { font-size: var(--fs-2xl); font-weight: 700; margin-top: 2px; letter-spacing: -.4px; }
.kpi__hint  { font-size: var(--fs-sm); color: var(--c-text-muted); }
.kpi__icon  { width: 46px; height: 46px; border-radius: var(--r-md); display: grid; place-items: center; flex: 0 0 46px; }

.kpi--primary { border-color: var(--c-primary-border); }
.kpi--primary .kpi__value { color: var(--c-primary); }
.kpi--primary .kpi__icon  { background: var(--c-primary-soft); color: var(--c-primary); }
.kpi--success { border-color: #A7E9C1; }
.kpi--success .kpi__value { color: var(--c-success); }
.kpi--success .kpi__icon  { background: var(--c-success-soft); color: var(--c-success); }
.kpi--danger  { border-color: #F6B4B4; }
.kpi--danger .kpi__value  { color: var(--c-danger); }
.kpi--danger .kpi__icon   { background: var(--c-danger-soft); color: var(--c-danger); }
.kpi--warning { border-color: #F5D68A; }
.kpi--warning .kpi__value { color: var(--c-warning-text); }
.kpi--warning .kpi__icon  { background: var(--c-warning-soft); color: var(--c-warning-text); }
.kpi--muted   { border-color: var(--c-border); }
.kpi--muted .kpi__icon    { background: var(--c-surface-3); color: var(--c-text-muted); }

/* ---------------------------------------------------------------------
   6. FORM
   --------------------------------------------------------------------- */
.form-grid { display: grid; gap: var(--space-4) var(--space-4); grid-template-columns: repeat(12, 1fr); }
.col-1{grid-column:span 1}.col-2{grid-column:span 2}.col-3{grid-column:span 3}
.col-4{grid-column:span 4}.col-5{grid-column:span 5}.col-6{grid-column:span 6}
.col-7{grid-column:span 7}.col-8{grid-column:span 8}.col-9{grid-column:span 9}
.col-10{grid-column:span 10}.col-11{grid-column:span 11}.col-12{grid-column:span 12}

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
/* KolayBi'de form etiketleri MAVİ'dir — bu markanın imzası */
.label {
  font-size: 13px; font-weight: 500; color: var(--c-primary);
  display: flex; align-items: center; gap: 4px;
}
.label .req { color: var(--c-danger); }
.label .hint-icon { color: var(--c-text-faint); width: 14px; height: 14px; }

.input, .select, .textarea {
  width: 100%; height: var(--h-control);
  padding: 0 12px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r);
  background: var(--c-surface);
  font-size: var(--fs-base);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.textarea { height: auto; min-height: 92px; padding: 10px 12px; resize: vertical; }
.input:hover, .select:hover, .textarea:hover { border-color: #A9BBD4; }
.input:focus, .select:focus, .textarea:focus {
  outline: 0; border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(77,128,238,.16);
}
.input::placeholder, .textarea::placeholder { color: var(--c-text-faint); }
.input:disabled, .select:disabled, .textarea:disabled { background: var(--c-surface-3); color: var(--c-text-muted); }
.input.is-invalid, .select.is-invalid { border-color: var(--c-danger); }
.field__error { font-size: var(--fs-sm); color: var(--c-danger); }
.field__help  { font-size: var(--fs-sm); color: var(--c-text-muted); }

/* Sağında birim/para birimi olan input */
.input-group { display: flex; }
.input-group .input { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.input-group__addon {
  display: grid; place-items: center; min-width: 52px; padding: 0 10px;
  border: 1px solid var(--c-border-strong); border-left: 0;
  border-top-right-radius: var(--r); border-bottom-right-radius: var(--r);
  background: var(--c-surface-3); color: var(--c-text-muted); font-size: 13px;
}
.input--money { text-align: right; font-variant-numeric: tabular-nums; }

/* Segment buton (Şahıs Şirketi / Tüzel Şirket · ÜRÜN / HİZMET) */
.segment { display: flex; background: var(--c-surface-3); border-radius: var(--r); padding: 3px; gap: 3px; }
.segment__item {
  flex: 1; height: 36px; border: 0; border-radius: var(--r-sm);
  background: transparent; color: var(--c-text-muted); font-weight: 500;
}
.segment__item.is-active { background: var(--c-primary); color: #fff; box-shadow: var(--sh-sm); }
.segment--lg .segment__item { height: 44px; font-size: var(--fs-md); }

/* Anahtar (switch) */
.switch { display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch__track {
  width: 44px; height: 24px; border-radius: var(--r-full);
  background: var(--c-border-strong); position: relative; transition: background var(--transition);
}
.switch__track::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; border-radius: var(--r-full);
  background: #fff; box-shadow: var(--sh-sm); transition: transform var(--transition);
}
.switch input:checked + .switch__track { background: var(--c-primary); }
.switch input:checked + .switch__track::after { transform: translateX(20px); }
.switch__label { font-size: 13px; color: var(--c-text-muted); }
.switch input:checked ~ .switch__label { color: var(--c-primary); font-weight: 600; }

/* Checkbox / Radio */
.check { display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; font-size: var(--fs-base); }
.check input[type=checkbox], .check input[type=radio] {
  width: 18px; height: 18px; accent-color: var(--c-primary); margin: 0;
}

/* Sihirbaz adımları */
.steps { display: flex; align-items: center; justify-content: center; gap: var(--space-2); margin-bottom: var(--space-5); }
.step {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  min-width: 148px; padding: 14px var(--space-4);
  border-radius: var(--r-md); background: var(--c-surface-3);
  color: var(--c-text-muted); font-weight: 600; font-size: var(--fs-base);
  border: 1px solid var(--c-border);
}
.step.is-active    { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.step.is-completed { background: var(--c-success); color: #fff; border-color: var(--c-success); }
.steps__line { width: 56px; height: 2px; background: var(--c-border-strong); }
.steps__line.is-done { background: var(--c-success); }

/* ---------------------------------------------------------------------
   7. TABLO
   --------------------------------------------------------------------- */
.table-wrap {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--r-md); overflow: hidden;
}
.table-toolbar {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4); flex-wrap: wrap;
}
.table-toolbar__spacer { flex: 1; }
.table-scroll { overflow-x: auto; }

.table { font-size: 13px; }
.table thead th {
  background: var(--c-surface-2);
  color: var(--c-text); font-weight: 700; font-size: 13px;
  text-align: left; white-space: nowrap;
  padding: 12px var(--space-3);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0; z-index: 2;
}
.table thead th.is-sortable { cursor: pointer; }
.table thead th .sort { margin-left: 6px; opacity: .4; }
.table thead th.is-sorted .sort { opacity: 1; color: var(--c-primary); }
.table tbody td {
  padding: 13px var(--space-3);
  border-bottom: 1px solid var(--c-border);
  vertical-align: middle; white-space: nowrap;
}
.table tbody tr:hover { background: var(--c-primary-softer); }
.table tbody tr.is-selected { background: var(--c-primary-soft); }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table .col-check { width: 44px; }
.table .col-action { width: 48px; }
.table td.strong { font-weight: 600; }

/* Boş durum */
.empty { padding: var(--space-10) var(--space-5); text-align: center; color: var(--c-text-muted); }
.empty__icon { width: 56px; height: 56px; margin: 0 auto var(--space-3); opacity: .4; }

/* Skeleton */
.skeleton { display: block; height: 12px; border-radius: var(--r-sm);
  background: linear-gradient(90deg,#EEF2F7 25%,#E2E8F0 37%,#EEF2F7 63%);
  background-size: 400% 100%; animation: sk 1.4s ease infinite; }
@keyframes sk { 0%{background-position:100% 50%} 100%{background-position:0 50%} }

/* Sayfalama */
.pagination { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4); flex-wrap: wrap; }
.pagination__info { font-size: 13px; color: var(--c-text-muted); }
.pagination__spacer { flex: 1; }
.pagination__btn {
  width: 34px; height: 34px; border: 1px solid var(--c-border);
  background: var(--c-surface); border-radius: var(--r); color: var(--c-text-muted);
  display: grid; place-items: center;
}
.pagination__btn:disabled { opacity: .4; }
.pagination__btn.is-active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* ---------------------------------------------------------------------
   8. ROZET / ETİKET / CHIP
   --------------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  height: 22px; padding: 0 8px; border-radius: var(--r-sm);
  font-size: var(--fs-xs); font-weight: 600; white-space: nowrap;
}
.badge--primary { background: var(--c-primary-soft); color: var(--c-primary); }
.badge--success { background: var(--c-success-soft); color: var(--c-success-text); }
.badge--danger  { background: var(--c-danger-soft);  color: var(--c-danger-text); }
.badge--warning { background: var(--c-warning-soft); color: var(--c-warning-text); }
.badge--info    { background: var(--c-info-soft);    color: var(--c-info-text); }
.badge--muted   { background: var(--c-surface-3);    color: var(--c-text-muted); }

/* Etiket chip (renkli nokta + ad) */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  height: 24px; padding: 0 10px; border-radius: var(--r-full);
  background: var(--c-surface-3); font-size: var(--fs-sm); color: var(--c-text);
}
.tag__dot { width: 8px; height: 8px; border-radius: var(--r-full); }

/* Aktif filtre chip'i */
.filter-chip {
  display: inline-flex; align-items: center; gap: var(--space-2);
  height: 32px; padding: 0 6px 0 12px; border-radius: var(--r);
  background: var(--c-surface); border: 1px solid var(--c-border-strong);
  font-size: 13px;
}
.filter-chip__x { border: 0; background: transparent; color: var(--c-text-faint); padding: 2px; }
.filter-chip__x:hover { color: var(--c-danger); }

/* ---------------------------------------------------------------------
   9. DROPDOWN
   --------------------------------------------------------------------- */
.dropdown { position: relative; display: inline-flex; }
.dropdown__menu {
  position: absolute; top: calc(100% + 6px); right: 0; min-width: 224px;
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--r-md); box-shadow: var(--sh-md);
  padding: 6px; z-index: var(--z-dropdown);
}
.dropdown__item {
  display: flex; align-items: center; gap: var(--space-3);
  width: 100%; padding: 9px 10px; border: 0; background: transparent;
  border-radius: var(--r-sm); font-size: var(--fs-base); color: var(--c-text);
  text-align: left; text-decoration: none;
}
.dropdown__item:hover { background: var(--c-surface-2); text-decoration: none; }
.dropdown__item .icon { width: 16px; height: 16px; color: var(--c-text-muted); }
.dropdown__item--danger { color: var(--c-danger); }
.dropdown__sep { height: 1px; background: var(--c-border); margin: 5px 0; }
/* Renkli dropdown menü (İşlemler sarı, Tahsilat Ekle yeşil) */
.dropdown__menu--warning { background: #FFFBEB; border-color: #FCE9B6; }
.dropdown__menu--success { background: #F0FDF4; border-color: #BBF7D0; }

/* ---------------------------------------------------------------------
   10. DRAWER (Filtrele)
   --------------------------------------------------------------------- */
.drawer-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.35);
  z-index: var(--z-drawer); opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: var(--w-drawer); max-width: 96vw;
  background: var(--c-surface); z-index: calc(var(--z-drawer) + 1);
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform 220ms ease;
  box-shadow: var(--sh-lg);
}
.drawer.is-open { transform: none; }
.drawer__head {
  display: flex; align-items: center; padding: var(--space-5);
  border-bottom: 1px solid var(--c-border);
}
.drawer__title { font-size: var(--fs-xl); font-weight: 700; }
.drawer__close { margin-left: auto; }
.drawer__body { flex: 1; overflow-y: auto; padding: var(--space-5); background: var(--c-bg); }
.drawer__foot {
  display: flex; gap: var(--space-3); justify-content: flex-end;
  padding: var(--space-4) var(--space-5); border-top: 1px solid var(--c-border);
  background: var(--c-surface);
}

/* Filtre grubu: mavi nokta + büyük harf gri başlık */
.filter-group { background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--r-md); padding: var(--space-4) var(--space-5); margin-bottom: var(--space-4); }
.filter-group__title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-sm); font-weight: 700; letter-spacing: .5px;
  text-transform: uppercase; color: var(--c-text-muted); margin-bottom: var(--space-4);
}
.filter-group__title::before {
  content: ""; width: 8px; height: 8px; border-radius: var(--r-full); background: var(--c-primary);
}

/* Hızlı tarih aralığı butonları */
.quick-range { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: var(--space-2); }
.quick-range button {
  height: 26px; padding: 0 10px; border-radius: var(--r-sm);
  border: 1px solid var(--c-border-strong); background: var(--c-surface);
  font-size: var(--fs-sm); color: var(--c-text-muted);
}
.quick-range button:hover, .quick-range button.is-active {
  background: var(--c-primary-soft); border-color: var(--c-primary-border); color: var(--c-primary);
}

/* Tarih tipi sekmeleri (Düzenleme / Oluşturma / Vade) */
.tab-pills { display: flex; background: var(--c-surface-3); border-radius: var(--r); padding: 3px; gap: 3px; margin-bottom: var(--space-3); }
.tab-pills button { flex: 1; height: 32px; border: 0; border-radius: var(--r-sm);
  background: transparent; color: var(--c-text-muted); font-size: 13px; font-weight: 500; }
.tab-pills button.is-active { background: var(--c-success); color: #fff; }

/* ---------------------------------------------------------------------
   11. MODAL
   --------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.45);
  display: grid; place-items: center; z-index: var(--z-modal); padding: var(--space-5);
}
.modal {
  width: 100%; max-width: 640px; max-height: 88vh;
  background: var(--c-surface); border-radius: var(--r-lg);
  box-shadow: var(--sh-lg); display: flex; flex-direction: column;
}
.modal--sm { max-width: 460px; }
.modal--lg { max-width: 880px; }
.modal--xl { max-width: 1120px; }
.modal__head {
  display: flex; align-items: center; padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--c-border);
}
.modal__title { font-size: var(--fs-lg); font-weight: 700; }
.modal__close { margin-left: auto; }
.modal__body { padding: var(--space-5); overflow-y: auto; flex: 1; }
.modal__foot {
  display: flex; gap: var(--space-3); justify-content: flex-end;
  padding: var(--space-4) var(--space-5); border-top: 1px solid var(--c-border);
}
/* Modal içi özet tablosu */
.summary-list { background: var(--c-surface-2); border-radius: var(--r); overflow: hidden; }
.summary-list__row {
  display: flex; justify-content: space-between; gap: var(--space-4);
  padding: 11px var(--space-4); border-bottom: 1px solid var(--c-border);
  font-size: var(--fs-base);
}
.summary-list__row:last-child { border-bottom: 0; }
.summary-list__row span:first-child { color: var(--c-text-muted); }
.summary-list__row span:last-child  { font-weight: 600; }

/* ---------------------------------------------------------------------
   12. DETAY SAYFASI
   --------------------------------------------------------------------- */
.detail-head { display: flex; align-items: flex-start; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-4); }
.detail-head__title { font-size: var(--fs-2xl); font-weight: 700; }
.detail-head__code  { font-size: var(--fs-md); color: var(--c-text-faint); font-style: italic; }
.detail-head__actions { margin-left: auto; display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* İç sekmeler (Detaylar / Ödeme planı / Notlar / Dosyalar) */
.tabs { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--c-border); margin-bottom: var(--space-5); overflow-x: auto; }
.tab { padding: 12px var(--space-4); font-size: var(--fs-base); color: var(--c-text-muted);
  border-bottom: 2px solid transparent; white-space: nowrap; background: transparent; border-width: 0 0 2px; }
.tab:hover { color: var(--c-text); }
.tab.is-active { color: var(--c-primary); font-weight: 600; border-bottom-color: var(--c-primary); }

/* Bilgi kartı satırları (Cari Bilgileri / Belge Bilgileri) */
.info-list__row {
  display: flex; justify-content: space-between; gap: var(--space-4);
  padding: 11px 0; border-bottom: 1px solid var(--c-border); font-size: var(--fs-base);
}
.info-list__row:last-child { border-bottom: 0; }
.info-list__label { color: var(--c-text); font-weight: 600; flex: 0 0 auto; }
.info-list__value { color: var(--c-text-muted); text-align: right; }

/* Toplamlar kartı */
.totals { border: 1px solid var(--c-primary-border); border-radius: var(--r-md); overflow: hidden; }
.totals__head {
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--c-primary-soft); color: var(--c-primary);
  padding: 12px var(--space-4); font-weight: 700;
}
.totals__head .cur { margin-left: auto; font-weight: 600; }
.totals__row { display: flex; justify-content: space-between; padding: 11px var(--space-4); font-size: var(--fs-base); }
.totals__row--grand { border-top: 2px solid var(--c-text); font-weight: 700; font-size: var(--fs-lg); }

/* Bilgilendirme kutusu */
.alert {
  display: flex; gap: var(--space-3); padding: var(--space-4);
  border-radius: var(--r); border-left: 4px solid var(--c-primary);
  background: var(--c-primary-softer); color: var(--c-primary); font-size: 13px;
}
.alert--warning { border-left-color: var(--c-warning); background: #FFFBEB; color: var(--c-warning-text); }
.alert--danger  { border-left-color: var(--c-danger);  background: #FEF2F2; color: var(--c-danger-text); }
.alert--success { border-left-color: var(--c-success); background: #F0FDF4; color: var(--c-success-text); }

/* ---------------------------------------------------------------------
   13. TOAST
   --------------------------------------------------------------------- */
.toasts { position: fixed; top: 70px; right: 20px; z-index: var(--z-toast); display: flex; flex-direction: column; gap: var(--space-2); }
.toast {
  display: flex; align-items: flex-start; gap: var(--space-3);
  min-width: 300px; max-width: 420px; padding: var(--space-3) var(--space-4);
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-primary); border-radius: var(--r);
  box-shadow: var(--sh-md); font-size: var(--fs-base);
  animation: toast-in 220ms ease;
}
.toast--success { border-left-color: var(--c-success); }
.toast--danger  { border-left-color: var(--c-danger); }
.toast--warning { border-left-color: var(--c-warning); }
@keyframes toast-in { from { opacity:0; transform: translateX(16px); } }

/* ---------------------------------------------------------------------
   14. YARDIMCI SINIFLAR
   --------------------------------------------------------------------- */
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.layout-2col { display: grid; grid-template-columns: minmax(0,1fr) 420px; gap: var(--space-4); align-items: start; }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}
.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-5{margin-top:var(--space-5)}
.mb-2{margin-bottom:var(--space-2)}.mb-4{margin-bottom:var(--space-4)}.mb-5{margin-bottom:var(--space-5)}
.ml-auto{margin-left:auto}
.text-muted{color:var(--c-text-muted)}.text-faint{color:var(--c-text-faint)}
.text-success{color:var(--c-success)}.text-danger{color:var(--c-danger)}.text-primary{color:var(--c-primary)}
.text-right{text-align:right}.text-center{text-align:center}
.fw-600{font-weight:600}.fw-700{font-weight:700}
.fs-sm{font-size:var(--fs-sm)}.fs-lg{font-size:var(--fs-lg)}.fs-xl{font-size:var(--fs-xl)}
.num{font-variant-numeric:tabular-nums}
.w-full{width:100%}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.divider{height:1px;background:var(--c-border);margin:var(--space-4) 0}

/* ---------------------------------------------------------------------
   15. GİRİŞ EKRANI
   --------------------------------------------------------------------- */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); padding: var(--space-6); background: var(--c-bg); }
.auth__panel { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--r-lg);
  display: grid; place-items: center; padding: var(--space-10); }
.auth__form { width: 100%; max-width: 380px; }
.auth__hero { background: #DBEAFE; border-radius: var(--r-lg); display: grid; place-items: center; padding: var(--space-10); text-align: center; }
@media (max-width: 900px) { .auth { grid-template-columns: 1fr; } .auth__hero { display: none; } }

/* ---------------------------------------------------------------------
   16. YAZDIRMA
   --------------------------------------------------------------------- */
@media print {
  .sidebar, .topbar, .module-tabs, .page-head__actions, .fab, .drawer, .toasts, .no-print { display: none !important; }
  .page { padding: 0; }
  .card { border: 0; box-shadow: none; }
  body { background: #fff; font-size: 12px; }
  .table thead th { background: #F1F5F9 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}

/* ---------------------------------------------------------------------
   17. RESPONSIVE
   --------------------------------------------------------------------- */
@media (max-width: 1280px) { .layout-2col { grid-template-columns: minmax(0,1fr) 360px; } }
@media (max-width: 1024px) {
  .layout-2col { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .col-3,.col-4 { grid-column: span 6; }
}
@media (max-width: 768px) {
  .sidebar { position: fixed; z-index: 80; transform: translateX(-100%); transition: transform 200ms ease; }
  .sidebar.is-open { transform: none; }
  .page { padding: var(--space-4); }
  .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr; }
  .col-1,.col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-11 { grid-column: span 12; }
  .page-head__actions { width: 100%; }
  .page-head__actions .btn { flex: 1; }
}

/* ---------------------------------------------------------------------
   18. KOYU TEMA (opsiyonel — topbar'daki ay ikonu)
   --------------------------------------------------------------------- */
[data-theme="dark"] {
  --c-bg: #0F172A; --c-surface: #1E293B; --c-surface-2: #243146; --c-surface-3: #2C3A52;
  --c-border: #334155; --c-border-strong: #475569;
  --c-text: #E2E8F0; --c-text-muted: #94A3B8; --c-text-faint: #64748B;
  --c-primary-soft: #1E3A6E; --c-primary-softer: #17294B; --c-primary-border: #2B4E94;
  --c-success-soft: #14352A; --c-danger-soft: #3B1A1A; --c-warning-soft: #3A2E12;
  --c-info-soft: #12304A;

  /* Rozet/KPI metni: zemin koyulaşınca metin de AÇILMALI.
     Aksi hâlde koyu yeşil zemin üstünde koyu yeşil yazı okunmuyordu. */
  --c-success-text: #4ADE80;
  --c-danger-text:  #F87171;
  --c-warning-text: #FBBF24;
  --c-info-text:    #7DD3FC;
}