/* === DOSYA: frontend/assets/app.css === */
/* Açıklama: Ortak tasarım sistemi — renk paleti, tipografi, sidebar, kartlar, tablo, modal, toast */

:root {
  /* Renk paleti (brief'ten) */
  --lacivert: #1a2744;
  --acik-lacivert: #2c3e6b;
  --koyu-gri: #1e2433;
  --orta-gri: #3a4560;
  --acik-gri: #c8d0e0;
  --beyaz: #f0f4ff;
  --turkuaz: #00b4d8;
  --turkuaz-koyu: #0091ad;

  /* Durum renkleri */
  --yesil: #2e9e5b;
  --kirmizi: #d64545;
  --turuncu: #e08a2c;
  --sari: #d4b026;

  /* Yüzeyler */
  --bg: #eef2fb;
  --kart-bg: #ffffff;
  --kart-border: #dce3f0;
  --metin: #1e2433;
  --metin-soluk: #5b6680;

  --golge: 0 1px 3px rgba(26, 39, 68, 0.08), 0 4px 12px rgba(26, 39, 68, 0.05);
  --golge-kart: 0 1px 2px rgba(26, 39, 68, 0.06);
  --radius: 10px;
  --radius-sm: 6px;
  --sidebar-w: 248px;

  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--metin);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-weight: 600; line-height: 1.25; color: var(--lacivert); }
a { color: var(--turkuaz-koyu); text-decoration: none; }

/* ---------- Layout: sidebar + içerik ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--lacivert);
  color: var(--acik-gri);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 40;
  transition: transform .25s ease;
}
.sidebar__brand {
  padding: 22px 22px 18px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .2px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar__brand span { color: var(--turkuaz); }
.sidebar__nav { padding: 14px 12px; flex: 1; overflow-y: auto; }
.nav-link {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 14px; margin-bottom: 3px;
  border-radius: var(--radius-sm);
  color: var(--acik-gri);
  font-size: 14.5px; font-weight: 500;
  cursor: pointer; transition: background .15s, color .15s;
}
.nav-link:hover { background: var(--acik-lacivert); color: #fff; }
.nav-link.active { background: var(--turkuaz); color: #062a33; font-weight: 600; }
.nav-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar__footer { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar__user { font-size: 13px; color: var(--acik-gri); margin-bottom: 8px; }
.sidebar__user strong { color: #fff; display: block; font-weight: 600; }

.content {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex; flex-direction: column;
  min-width: 0;
}
.topbar {
  height: 62px;
  background: var(--kart-bg);
  border-bottom: 1px solid var(--kart-border);
  display: flex; align-items: center; gap: 14px;
  padding: 0 26px;
  position: sticky; top: 0; z-index: 30;
}
.topbar h1 { font-size: 19px; }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.hamburger svg { width: 24px; height: 24px; color: var(--lacivert); }
.page { padding: 26px; flex: 1; }

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  cursor: pointer; transition: background .15s, border-color .15s, opacity .15s;
  font-family: inherit;
}
.btn--primary { background: var(--turkuaz); color: #062a33; }
.btn--primary:hover { background: var(--turkuaz-koyu); color: #fff; }
.btn--ghost { background: transparent; color: var(--lacivert); border-color: var(--kart-border); }
.btn--ghost:hover { background: var(--beyaz); }
.btn--danger { background: var(--kirmizi); color: #fff; }
.btn--danger:hover { opacity: .9; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn--sm { padding: 6px 11px; font-size: 13px; }

/* ---------- Kartlar ---------- */
.card {
  background: var(--kart-bg);
  border: 1px solid var(--kart-border);
  border-radius: var(--radius);
  box-shadow: var(--golge-kart);
}
.card__body { padding: 20px; }
.card__title { font-size: 14px; color: var(--metin-soluk); font-weight: 600; margin-bottom: 6px; }

/* İstatistik kartları */
.stat-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  margin-bottom: 22px;
}
.stat { padding: 18px 20px; }
.stat__label { font-size: 13px; color: var(--metin-soluk); font-weight: 500; margin-bottom: 8px; }
.stat__value { font-size: 26px; font-weight: 700; color: var(--lacivert); }
.stat__value.pos { color: var(--yesil); }
.stat__value.neg { color: var(--kirmizi); }
.stat__sub { font-size: 12.5px; color: var(--metin-soluk); margin-top: 5px; }
.stat__accent { height: 3px; border-radius: 3px; background: var(--turkuaz); width: 36px; margin-top: 12px; }

/* ---------- Tablo ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table.data { width: 100%; border-collapse: collapse; background: var(--kart-bg); font-size: 14px; }
table.data th, table.data td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--kart-border); }
table.data th {
  background: var(--beyaz); color: var(--orta-gri);
  font-size: 12.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .4px;
  cursor: pointer; user-select: none;
}
table.data tbody tr:hover { background: #f7f9ff; }
table.data td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Rozetler ---------- */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600; line-height: 1.6;
}
.badge--kazanildi, .badge--tamamlandi { background: #e3f5ea; color: var(--yesil); }
.badge--kaybedildi, .badge--iptal { background: #fbe6e6; color: var(--kirmizi); }
.badge--devam_ediyor, .badge--teklif_verildi { background: #e2f4fa; color: var(--turkuaz-koyu); }
.badge--bekliyor { background: #f0f2f8; color: var(--orta-gri); }
.badge--kritik { background: #fbe6e6; color: var(--kirmizi); }
.badge--yuksek { background: #fdeede; color: var(--turuncu); }
.badge--orta { background: #fbf5dd; color: #9a7d12; }
.badge--dusuk { background: #f0f2f8; color: var(--orta-gri); }

/* ---------- Form ---------- */
.field { margin-bottom: 15px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--orta-gri); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--kart-border); border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit; color: var(--metin);
  background: #fff; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--turkuaz);
  box-shadow: 0 0 0 3px rgba(0,180,216,.15);
}
.field textarea { resize: vertical; min-height: 72px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(26,39,68,.5);
  display: none; align-items: flex-start; justify-content: center;
  z-index: 60; padding: 40px 16px; overflow-y: auto;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--kart-bg); border-radius: var(--radius);
  width: 100%; max-width: 540px; box-shadow: var(--golge);
  animation: modalIn .2s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }
.modal__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--kart-border); }
.modal__head h3 { font-size: 17px; }
.modal__close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--metin-soluk); line-height: 1; }
.modal__body { padding: 22px; }
.modal__foot { display: flex; justify-content: flex-end; gap: 10px; padding: 16px 22px; border-top: 1px solid var(--kart-border); }

/* ---------- Toast ---------- */
.toast-host { position: fixed; top: 18px; right: 18px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 13px 18px; border-radius: var(--radius-sm); color: #fff;
  font-size: 14px; font-weight: 500; box-shadow: var(--golge);
  min-width: 240px; max-width: 360px;
  animation: toastIn .25s ease;
}
.toast--ok { background: var(--yesil); }
.toast--err { background: var(--kirmizi); }
.toast--info { background: var(--acik-lacivert); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

/* ---------- Yardımcılar ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; }
.toolbar .grow { flex: 1; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.empty { text-align: center; padding: 40px 20px; color: var(--metin-soluk); }
.muted { color: var(--metin-soluk); }

/* ---------- Responsive ---------- */
.backdrop { display: none; position: fixed; inset: 0; background: rgba(26,39,68,.4); z-index: 35; }
@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .content { margin-left: 0; }
  .hamburger { display: block; }
  .backdrop.open { display: block; }
  .field-row { grid-template-columns: 1fr; }
}