:root{
  --paper:#f5f5ed;--surface:#fff;--ink:#223b2e;--muted:#72796e;--line:#daddd0;
  --green:#c5e7ae;--green-strong:#709458;--bubble-in:#fff;--bubble-out:#dcefcd;
  --danger:#b3261e;--warn-bg:#fff4d6;--warn-line:#ecd28b;--read:#2f7fd1;
  --radius:10px;--shadow:0 1px 2px rgba(34,59,46,.06),0 4px 16px rgba(34,59,46,.06);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.45 'DM Sans',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2{margin:0;letter-spacing:-.3px}
.muted{color:var(--muted)}
.small-text{font-size:13px;margin:4px 0 0}

/* Marka */
.brand{font-weight:700;font-size:30px;letter-spacing:-1.4px;line-height:1}
.brand span{display:block;font-size:10px;letter-spacing:2.5px;text-transform:uppercase;font-weight:600;margin-top:6px;color:var(--muted)}
.brand.small{font-size:22px;letter-spacing:-1px}
.brand.small span{font-size:8px;margin-top:4px}

/* Butonlar ve formlar */
.btn{border:1px solid var(--ink);background:transparent;border-radius:7px;padding:9px 16px;font-weight:600;font-size:14px;cursor:pointer;transition:background .15s,transform .15s}
.btn:hover{background:rgba(34,59,46,.06)}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{background:#30503f}
.btn.ghost{border-color:transparent}
.btn.small{padding:6px 12px;font-size:13px}
.btn:disabled{opacity:.55;cursor:default}
.btn:focus-visible,input:focus-visible{outline:3px solid var(--green-strong);outline-offset:2px}
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}
input[type=text],input[type=password],input[type=search],input[type=email],input:not([type]){width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
input:focus{border-color:var(--green-strong);outline:none}
.form-error{color:var(--danger);font-size:14px;min-height:20px;margin:10px 0 4px}

/* Giriş */
.login{min-height:100%;display:grid;place-items:center;padding:24px 16px}
.login-card{width:min(380px,100%);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:32px 28px;box-shadow:var(--shadow)}
.login-card .brand{margin-bottom:22px}
.login-card .btn{width:100%;padding:12px}

/* Uygulama iskeleti */
.app{height:100%;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:28px;padding:12px 20px;border-bottom:1px solid var(--line);background:var(--paper)}
.topnav{flex:1;display:flex;gap:20px;font-size:14px}
.topnav a{color:var(--muted);text-decoration:none;font-weight:500;padding:6px 2px;border-bottom:2px solid transparent}
.topnav a:hover{color:var(--ink)}
.topnav a[aria-current=page]{color:var(--ink);font-weight:600;border-bottom-color:var(--ink)}
.user{display:flex;align-items:center;gap:4px}
.user-name{font-weight:600;font-size:14px;margin-right:8px}
.user-name::before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green-strong);margin-right:7px;vertical-align:1px}
.banner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 20px;background:var(--warn-bg);border-bottom:1px solid var(--warn-line);font-size:14px}
.workspace{flex:1;display:grid;grid-template-columns:360px 1fr;min-height:0}

/* Konuşma listesi */
.sidebar{display:flex;flex-direction:column;border-right:1px solid var(--line);min-height:0;background:var(--paper)}
.sidebar-head{padding:18px 16px 12px}
.sidebar-head h1{font-size:20px;margin-bottom:12px}
.conversation-list{list-style:none;margin:0;padding:0 8px 12px;overflow-y:auto;flex:1}
.conversation{display:flex;gap:12px;align-items:center;width:100%;text-align:left;padding:11px 10px;border:0;border-radius:var(--radius);background:transparent;cursor:pointer}
.conversation:hover{background:rgba(34,59,46,.05)}
.conversation[aria-current=true]{background:var(--surface);box-shadow:var(--shadow)}
.conversation .body{flex:1;min-width:0}
.conversation .row{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.conversation .name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conversation .time{font-size:12px;color:var(--muted);flex-shrink:0}
.conversation .preview{font-size:13.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--green);color:var(--ink);display:grid;place-items:center;font-weight:700;font-size:15px;flex-shrink:0}

/* Mesajlar */
.thread{min-width:0;min-height:0;display:flex;background:#eeeee3}
.thread-inner{flex:1;display:flex;flex-direction:column;min-height:0}
.thread-head{display:flex;align-items:center;gap:12px;padding:12px 20px;background:var(--paper);border-bottom:1px solid var(--line)}
.thread-head h2{font-size:17px}
.thread-head p{margin:2px 0 0;font-size:13px}
.back{display:none;font-size:20px;padding:4px 10px}
.messages{flex:1;overflow-y:auto;padding:20px clamp(16px,4vw,48px);display:flex;flex-direction:column;gap:4px}
.day{align-self:center;font-size:12px;font-weight:600;color:var(--muted);background:var(--paper);border:1px solid var(--line);padding:3px 10px;border-radius:20px;margin:14px 0 8px}
.msg{max-width:min(560px,78%);padding:8px 11px 6px;border-radius:12px;box-shadow:0 1px 1px rgba(34,59,46,.08);white-space:pre-wrap;overflow-wrap:anywhere}
.msg.in{align-self:flex-start;background:var(--bubble-in);border-top-left-radius:4px}
.msg.out{align-self:flex-end;background:var(--bubble-out);border-top-right-radius:4px}
.msg + .msg.in, .msg + .msg.out{margin-top:2px}
.msg .kind{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:2px}
.msg .meta{display:flex;justify-content:flex-end;gap:6px;align-items:center;font-size:11.5px;color:var(--muted);margin-top:3px;white-space:nowrap}
.msg .status.read{color:var(--read)}
.msg .status.failed{color:var(--danger);font-weight:600}
.msg .error{font-size:12.5px;color:var(--danger);margin-top:4px}
.msg .tag{font-size:11px;font-weight:600;color:var(--green-strong);margin-right:auto}

/* Yanıt alanı */
.composer{border-top:1px solid var(--line);background:var(--paper);padding:10px 20px 8px}
.composer-row{display:flex;gap:10px;align-items:flex-end}
.composer textarea{flex:1;resize:none;min-height:44px;max-height:180px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);line-height:1.4}
.composer textarea:focus{border-color:var(--green-strong);outline:none}
.composer textarea:disabled{background:#ecece2;color:var(--muted);cursor:not-allowed}
.composer .btn{min-height:44px}
.window-note{margin:0 0 8px;font-size:12.5px;color:var(--muted)}
.window-note.warn{color:#8a5a00;font-weight:600}
.window-note.closed{color:var(--ink);background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:8px;padding:9px 12px;font-size:13.5px}
.composer-hint{margin:6px 0 0;font-size:11.5px}
.composer.is-closed .composer-hint{display:none}

/* Müşteriler */
.page{flex:1;overflow-y:auto;min-height:0}
.page-inner{max-width:1180px;margin:0 auto;padding:24px 24px 48px}
.page-inner.narrow{max-width:760px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:16px}
.page-head h1,.page-inner > h1{font-size:24px}
.page-head p{margin:4px 0 0;font-size:14px}
.btn{text-decoration:none;display:inline-flex;align-items:center;justify-content:center;color:var(--ink)}
.btn.primary{color:var(--paper)}
.label-short{display:none}
.btn.danger{color:var(--danger);border-color:transparent}
.btn.danger:hover{background:rgba(179,38,30,.08)}
.btn.danger-solid{background:var(--danger);border-color:var(--danger);color:#fff}
#customer-search{max-width:520px;margin-bottom:16px}
.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;padding:11px 14px;border-bottom:1px solid var(--line);background:#fafaf5}
.table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.table tbody tr:last-child td{border-bottom:0}
.table tbody tr{cursor:pointer}
.table tbody tr:hover td{background:#f8f8f1}
.table .primary-cell{font-weight:600}
.table .sub{display:block;font-size:12.5px;color:var(--muted);font-weight:400;margin-top:2px}
.table a{color:inherit;text-decoration:none}
.table .mono{font-variant-numeric:tabular-nums;white-space:nowrap}
.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:16px;font-size:14px}
.back-link{display:inline-block;color:var(--muted);text-decoration:none;font-size:14px;margin-bottom:10px}
.back-link:hover{color:var(--ink)}
#customer-form{margin-top:16px}
fieldset{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:6px 20px 18px;margin:0 0 16px}
legend{font-weight:700;font-size:15px;padding:0 6px;margin-left:-6px}
.field label{margin-top:14px}
.req{color:var(--danger)}
.opt{color:var(--muted);font-weight:400}
.hint{font-size:12.5px;color:var(--muted);margin:5px 0 0}
.field-error{font-size:13px;color:var(--danger);margin:5px 0 0}
.field-error:empty{display:none}
[aria-invalid=true]{border-color:var(--danger)!important}
select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
select:focus,textarea:focus{border-color:var(--green-strong);outline:none}
textarea{resize:vertical}
.phone{display:flex;gap:8px}
.phone select{width:210px;flex-shrink:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.form-actions{display:flex;align-items:center;gap:8px;margin-top:8px}
.form-actions .spacer{flex:1}
.audit{font-size:12.5px;margin-top:14px}

/* Boş durumlar */
.empty{margin:auto;text-align:center;color:var(--muted);padding:32px}
.empty.small{margin:24px 16px;font-size:14px}
.empty-icon{font-size:36px;margin-bottom:8px;opacity:.6}

/* Diyalog ve bildirim */
dialog{border:1px solid var(--line);border-radius:14px;padding:26px 24px;width:min(400px,calc(100% - 32px));background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
dialog::backdrop{background:rgba(34,59,46,.35)}
dialog h2{font-size:19px}
.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:8px;font-size:14px;box-shadow:var(--shadow);z-index:10}

/* Mobil: liste ve konuşma ayrı ekranlarda */
@media (max-width:820px){
  .topbar{gap:12px;padding:10px 16px}
  .brand.small span{display:none}
  .topnav{gap:14px}
  .user .btn{padding:6px 8px;font-size:13px;white-space:nowrap}
  .label-long{display:none}
  .label-short{display:inline}
  .user-name{display:none}
  .banner{padding:10px 16px;flex-wrap:wrap}
  .workspace{grid-template-columns:1fr}
  .app.has-thread .sidebar{display:none}
  .app:not(.has-thread) .thread{display:none}
  .back{display:inline-block}
  .thread-head{padding:10px 12px}
  .msg{max-width:88%}
  .composer{padding:8px 12px}
  .page-inner{padding:16px 16px 40px}
  .page-head{align-items:center}
  .grid-2{grid-template-columns:1fr}
  .phone select{width:130px}
  fieldset{padding:4px 14px 16px}
  .table thead{display:none}
  .table,.table tbody,.table tr,.table td{display:block;width:100%}
  .table tr{padding:12px 14px;border-bottom:1px solid var(--line)}
  .table tbody tr:last-child{border-bottom:0}
  .table td{padding:2px 0;border:0}
  .table td[data-label]::before{content:attr(data-label) ': ';color:var(--muted);font-size:12.5px}
  .form-actions{flex-wrap:wrap}
  .composer-hint{display:none}
}