:root {
  /* Aykanlar kurumsal renkleri (aykanlar.com.tr) */
  --marka: #192857;
  --marka-mavi: #457bbe;
  --marka-koyu-mavi: #19458e;
  --bg: #eef3f4;
  --kart: #ffffff;
  --yazi: #1f2733;
  --soluk: #5f6672;
  --cizgi: #dde3ea;
  --vurgu: var(--marka-koyu-mavi);
  --vurgu-acik: #e6eef8;
  --tehlike: #c43d3d;
  --basari: #2f8f5b;
  --haftasonu: #f7f1e3;
  --yan: var(--marka);
  --yan-yazi: #c9d3e6;
  --golge: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --r: 10px;
  color-scheme: light;
}
* { box-sizing: border-box; }
body { margin: 0; font: 14.5px/1.45 Cabin, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--yazi); background: var(--bg); }
[hidden] { display: none !important; }
h1, h2, h3 { margin: 0; font-weight: 650; }
input, select, button, textarea { font: inherit; color: inherit; }
input, select { border: 1px solid var(--cizgi); border-radius: 7px; padding: 7px 9px; background: #fff; min-width: 0; }
input:focus, select:focus { outline: 2px solid var(--vurgu-acik); border-color: var(--vurgu); }
label { display: grid; gap: 4px; font-size: 12.5px; color: var(--soluk); }
label.satir { display: flex; align-items: center; gap: 8px; color: var(--yazi); font-size: 14px; }

.btn { border: 1px solid var(--cizgi); background: #fff; border-radius: 7px; padding: 7px 13px; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #f1f3f6; }
.btn.birincil { background: var(--vurgu); border-color: var(--vurgu); color: #fff; }
.btn.birincil:hover { filter: brightness(1.08); }
.btn.tehlike { color: var(--tehlike); border-color: #f0cccc; }
.btn.tehlike-dolu { background: var(--tehlike); border-color: var(--tehlike); color: #fff; }
.btn.kucuk { padding: 4px 9px; font-size: 13px; }
.btn:disabled { opacity: .55; cursor: default; }

/* Giriş */
.giris { min-height: 100vh; display: grid; place-items: center; padding: 16px; background: linear-gradient(160deg, var(--marka) 0%, var(--marka-koyu-mavi) 100%); }
.giris-logo { width: 200px; height: auto; margin-bottom: 4px; }
.giris-kart h1 { font-size: 18px; color: var(--marka); }
.giris-kart { background: var(--kart); padding: 28px; border-radius: 14px; box-shadow: var(--golge); width: min(360px, 100%); display: grid; gap: 14px; }
.giris-kart .alt { margin: -8px 0 0; color: var(--soluk); }
.hata { color: var(--tehlike); margin: 0; min-height: 1em; font-size: 13px; }

/* Yerleşim */
.uygulama { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.yan { background: var(--yan); color: var(--yan-yazi); display: flex; flex-direction: column; padding: 18px 12px; position: sticky; top: 0; height: 100vh; }
.logo { padding: 4px 10px 22px; }
.logo img { width: 170px; height: auto; display: block; }
.logo span { display: block; margin-top: 8px; font-size: 11.5px; font-weight: 600; color: #8fa3c8; letter-spacing: .08em; text-transform: uppercase; }
nav { display: grid; gap: 2px; }
nav a { color: var(--yan-yazi); text-decoration: none; padding: 9px 10px; border-radius: 7px; }
nav a:hover { background: rgba(255, 255, 255, .06); }
nav a.aktif { background: rgba(255, 255, 255, .1); color: #fff; box-shadow: inset 3px 0 0 var(--marka-mavi); }
.yan-alt { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px; font-size: 13px; }
.yan-alt .btn { background: transparent; color: var(--yan-yazi); border-color: rgba(255, 255, 255, .2); }
main { min-width: 0; }
.ust { display: flex; align-items: center; gap: 12px; padding: 16px 24px; background: var(--kart); border-bottom: 1px solid var(--cizgi); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; }
.ust h2 { font-size: 19px; flex: 1; color: var(--marka); }
.yil-sec { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.menu-btn { display: none; }
.icerik { padding: 20px 24px 60px; display: grid; gap: 16px; }

/* Kartlar */
.kart { background: var(--kart); border-radius: var(--r); box-shadow: var(--golge); padding: 16px; min-width: 0; }
.kart h3 { font-size: 14.5px; margin-bottom: 12px; }
.kart-ust { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.kart-ust h3 { margin: 0; }
.izgara { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }
.kpiler { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.kpi { background: var(--kart); border-radius: var(--r); box-shadow: var(--golge); padding: 14px 16px; border-top: 3px solid var(--marka-mavi); }
.kpi .e { font-size: 12.5px; color: var(--soluk); }
.kpi .d { font-size: 22px; font-weight: 700; color: var(--marka); margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .a { font-size: 12px; color: var(--soluk); }
.grafik { position: relative; height: 260px; }

/* Araç çubuğu */
.arac { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.arac .bosluk { flex: 1; }
.ozetler { display: flex; flex-wrap: wrap; gap: 8px; }
.cip { background: var(--vurgu-acik); color: var(--vurgu); border-radius: 999px; padding: 4px 11px; font-size: 13px; font-variant-numeric: tabular-nums; }
.cip b { font-weight: 650; }
.sekmeler { display: flex; gap: 4px; border-bottom: 1px solid var(--cizgi); }
.sekmeler button { border: 0; background: none; padding: 8px 14px; cursor: pointer; border-bottom: 2px solid transparent; color: var(--soluk); }
.sekmeler button.aktif { color: var(--vurgu); border-color: var(--vurgu); font-weight: 600; }

/* Tablo */
.tablo-kap { overflow: auto; max-height: calc(100vh - 260px); border: 1px solid var(--cizgi); border-radius: 8px; background: #fff; }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--cizgi); text-align: left; white-space: nowrap; }
th { position: sticky; top: 0; background: #f3f6fa; font-size: 12.5px; color: var(--soluk); font-weight: 600; cursor: pointer; user-select: none; z-index: 1; }
th.sirali::after { content: " ▲"; font-size: 10px; }
th.sirali.azalan::after { content: " ▼"; }
td.sayi, th.sayi { text-align: right; }
td.metin { max-width: 240px; overflow: hidden; text-overflow: ellipsis; }
tbody tr:hover { background: #f6f8fc; }
tbody tr.tik { cursor: pointer; }
tfoot td { position: sticky; bottom: 0; background: #f8f9fb; font-weight: 650; border-top: 1px solid var(--cizgi); }
td.bos { color: var(--soluk); text-align: center; padding: 30px; }
.etiket { display: inline-block; padding: 1px 8px; border-radius: 999px; background: #eef1f5; font-size: 12px; }
.etiket.uyari { background: #fdecec; color: var(--tehlike); }
.kutu-input { width: 130px; padding: 4px 7px; }

/* Mesai ızgarası */

/* Modal */
dialog { border: 0; border-radius: 14px; padding: 0; width: min(640px, calc(100vw - 32px)); box-shadow: 0 20px 50px rgba(0, 0, 0, .25); }
dialog.onay { width: min(420px, calc(100vw - 32px)); }
.onay-govde { padding: 20px; display: grid; gap: 16px; }
.onay-govde p { margin: 0; font-size: 15px; }
dialog::backdrop { background: rgba(15, 23, 42, .45); }
#modal-form { padding: 20px; display: grid; gap: 16px; }
.form-izgara { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.modal-alt { display: flex; gap: 8px; justify-content: flex-end; }
.modal-alt .sol { margin-right: auto; }

.bildirim { position: fixed; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); left: 50%; transform: translateX(-50%); display: grid; gap: 8px; z-index: 100; }
.bildirim div { background: #1d2330; color: #fff; padding: 10px 16px; border-radius: 8px; box-shadow: var(--golge); }
.bildirim div.hata { background: var(--tehlike); color: #fff; }
ul.liste { margin: 6px 0 0; padding-left: 18px; }
ul.liste li { margin: 2px 0; }
.soluk { color: var(--soluk); }

/* Asistan */
.sohbet { display: grid; gap: 12px; align-content: start; }
.balon { max-width: min(760px, 100%); padding: 12px 14px; border-radius: 12px; line-height: 1.5; min-width: 0; }
.balon.kullanici { justify-self: end; background: var(--marka-koyu-mavi); color: #fff; white-space: pre-wrap; border-bottom-right-radius: 4px; }
.balon.asistan { justify-self: start; background: var(--kart); box-shadow: var(--golge); border-bottom-left-radius: 4px; }
.md > :first-child { margin-top: 0; }
.md > :last-child { margin-bottom: 0; }
.md p, .md ul, .md ol { margin: 0 0 8px; }
.md ul, .md ol { padding-left: 20px; }
.md h4 { margin: 10px 0 6px; font-size: 15px; color: var(--marka); }
.md code { background: var(--vurgu-acik); padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.md-tablo { overflow-x: auto; margin: 6px 0 10px; border: 1px solid var(--cizgi); border-radius: 8px; }
.md-tablo th { position: static; cursor: default; }
.md-tablo td, .md-tablo th { padding: 6px 10px; }
.arac-durum { display: flex; align-items: center; gap: 8px; color: var(--soluk); font-size: 13px; }
.arac-durum[hidden] { display: none; }
.nokta { width: 8px; height: 8px; border-radius: 50%; background: var(--marka-mavi); animation: nabiz 1s ease-in-out infinite; }
@keyframes nabiz { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .nokta { animation: none; } }
.ornekler .cipler { display: flex; flex-wrap: wrap; gap: 8px; }
.cip-btn { border: 1px solid var(--cizgi); background: var(--vurgu-acik); color: var(--marka-koyu-mavi); border-radius: 999px; padding: 7px 12px; cursor: pointer; text-align: left; font: inherit; font-size: 13.5px; }
.cip-btn:hover { border-color: var(--marka-mavi); }
.soru-kutusu { position: sticky; bottom: calc(12px + env(safe-area-inset-bottom, 0px)); display: flex; gap: 10px; align-items: end; background: var(--kart); padding: 10px; border-radius: 12px; box-shadow: 0 4px 18px rgba(25, 40, 87, .12); }
.soru-kutusu textarea { flex: 1; min-width: 0; resize: vertical; border: 1px solid var(--cizgi); border-radius: 8px; padding: 9px 11px; font: inherit; max-height: 200px; }
.soru-kutusu textarea:focus { outline: 2px solid var(--vurgu-acik); border-color: var(--vurgu); }
.soru-butonlar { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

@media (max-width: 820px) {
  .soru-kutusu { flex-direction: column; align-items: stretch; }
  .uygulama { grid-template-columns: 1fr; }
  .yan { position: fixed; inset: 0 auto 0 0; padding-top: calc(18px + env(safe-area-inset-top, 0px)); padding-bottom: calc(18px + env(safe-area-inset-bottom, 0px)); width: 240px; z-index: 20; transform: translateX(-100%); transition: transform .2s; }
  .yan.acik { transform: none; }
  .menu-btn { display: inline-block; }
  .ust { padding: 12px 16px; }
  .icerik { padding: 16px 16px 60px; }
  .tablo-kap { max-height: none; }
  .kpi .d { font-size: 18px; }
}