:root {
  --bg: #0b0d12; --panel: #12151c; --panel2: #191d27; --line: #232838; --line2: #2c3244;
  --text: #e8ebf2; --muted: #8e96ab; --accent: #5b9dff; --hl: #ff5a5a; --save: #ffcf5c;
  --chip: #1f2432; --chip-text: #c3cadb; --sumbg: #141a24;
  --radius: 14px; --shadow: 0 1px 0 rgba(255,255,255,.02), 0 8px 24px rgba(0,0,0,.35);
  --c-zafiyet: #ff7a59; --c-sizinti: #c07bff; --c-haber: #5b9dff; --c-ti: #37c8a4; --c-arastirma: #ffb547;
  --c-devlet: #8fa3c7; --c-topluluk: #f26fb0; --c-turkiye: #e23d3d;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f3f4f8; --panel: #ffffff; --panel2: #f1f3f8; --line: #e3e6ee; --line2: #d5d9e4; --text: #161923; --muted: #6b7386;
          --chip: #eceff5; --chip-text: #3b4358; --sumbg: #f6f7fb; --shadow: 0 1px 2px rgba(20,24,40,.06), 0 6px 18px rgba(20,24,40,.05); }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, "Segoe UI", Inter, Roboto, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img { display: block; }

/* üst çubuk */
.top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px; padding: 10px 14px;
       padding-top: calc(10px + env(safe-area-inset-top)); background: color-mix(in srgb, var(--panel) 88%, transparent);
       backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.brand { font-weight: 800; letter-spacing: -.01em; white-space: nowrap; font-size: 16px; }
.top input { flex: 1; min-width: 0; padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line2); background: var(--bg); color: var(--text); outline: none; }
.top input:focus { border-color: var(--accent); }
.icon { width: 38px; height: 38px; border-radius: 12px; font-size: 17px; display: grid; place-items: center; color: var(--muted); }
.icon:hover { background: var(--panel2); color: var(--text); }
.icon[aria-pressed="true"] { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
#menuBtn { display: none; }

/* düzen */
.layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); }
.side { position: sticky; top: 59px; height: calc(100vh - 59px); overflow-y: auto; padding: 14px 12px 24px; border-right: 1px solid var(--line); background: var(--panel); }
.side h4 { margin: 20px 10px 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; }
.side h4 small { text-transform: none; letter-spacing: 0; font-weight: 500; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.navitem { display: flex; justify-content: space-between; align-items: center; padding: 9px 12px; border-radius: 10px; font-weight: 500; color: var(--text); }
.navitem:hover { background: var(--panel2); }
.navitem.active { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
.navitem b { font-size: 11px; font-weight: 700; color: var(--muted); background: var(--chip); padding: 2px 8px; border-radius: 999px; min-width: 22px; text-align: center; }
.navitem b:empty { display: none; }
.navitem.active b { color: #fff; background: var(--accent); }
.side-foot { margin-top: 26px; padding: 10px; font-size: 12px; display: flex; flex-direction: column; gap: 8px; color: var(--muted); }
.muted { color: var(--muted); }
.backdrop { display: none; }

.main { padding: 18px 20px 60px; max-width: 760px; width: 100%; justify-self: start; }
.filterbar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.filterbar:empty { display: none; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 6px; }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 999px; background: var(--chip); color: var(--chip-text); font-size: 12px; font-weight: 500; white-space: nowrap; line-height: 1.3; }
.chip:hover { filter: brightness(1.12); }
.chip.active { background: var(--accent); color: #fff; }
.chip small { opacity: .65; font-weight: 400; }
.chip.x::after { content: " ✕"; opacity: .7; }

/* kartlar */
.list { display: flex; flex-direction: column; gap: 12px; }
.card { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px 12px; box-shadow: var(--shadow); transition: opacity .2s, transform .15s; }
.card:hover { border-color: var(--line2); }
.card.read { opacity: .5; box-shadow: none; }
.card.hl { border-color: color-mix(in srgb, var(--hl) 45%, var(--line)); background: linear-gradient(90deg, color-mix(in srgb, var(--hl) 9%, var(--panel)) 0, var(--panel) 220px); }
.card .meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.card .meta .cat { font-weight: 700; cursor: pointer; }
.card .meta .cat:hover { text-decoration: underline; }
.card[data-catkey="zafiyet"] .cat { color: var(--c-zafiyet); }
.card[data-catkey="sizinti"] .cat { color: var(--c-sizinti); }
.card[data-catkey="haber"] .cat { color: var(--c-haber); }
.card[data-catkey="tehdit-istihbarati"] .cat { color: var(--c-ti); }
.card[data-catkey="arastirma"] .cat { color: var(--c-arastirma); }
.card[data-catkey="devlet"] .cat { color: var(--c-devlet); }
.card[data-catkey="topluluk"] .cat { color: var(--c-topluluk); }
.card[data-catkey="turkiye"] .cat { color: var(--c-turkiye); }
.card .meta .dot { opacity: .5; }
.card .hlmark { color: var(--hl); font-weight: 700; }
.card h3 { margin: 0 0 8px; font-size: 17px; line-height: 1.35; font-weight: 700; letter-spacing: -.01em; }
.card h3 a:hover { color: var(--accent); }
.card .sum { margin: 0 0 10px; padding: 10px 12px; border-radius: 10px; background: var(--sumbg); border-left: 3px solid var(--line2); color: var(--text); font-size: 14px; line-height: 1.55; }
.card .sum.en { font-style: italic; color: var(--muted); }
.card .foot { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 12.5px; color: var(--muted); }
.card .foot .src { display: inline-flex; align-items: center; gap: 6px; }
.card .foot .src > a { font-weight: 600; color: var(--text); }
.card .foot .src > a:hover { color: var(--accent); }
.card .fav { width: 16px; height: 16px; border-radius: 4px; }
.card .foot2 { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 8px; }
.card .foot2 .cve { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; color: var(--chip-text); background: var(--chip); padding: 3px 8px; border-radius: 6px; }
.card .acts { margin-left: auto; display: flex; gap: 2px; }
.card .acts button { width: 34px; height: 30px; border-radius: 9px; font-size: 15px; color: var(--muted); }
.card .acts button:hover { background: var(--panel2); color: var(--text); }
.card .acts button.on { color: var(--save); }
.card .acts button.rd.on { color: var(--accent); }
.sentinel { height: 40px; }
.empty { text-align: center; color: var(--muted); padding: 48px 0; }

/* kaynak yönetimi */
.feeds { display: flex; flex-direction: column; gap: 6px; }
.feedadd { display: grid; grid-template-columns: 1fr; gap: 8px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 8px; box-shadow: var(--shadow); }
.feedadd-title { font-weight: 700; }
.feedadd input, .feedadd select, .feedcat { padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line2); background: var(--bg); color: var(--text); font: inherit; outline: none; }
.feedadd input:focus { border-color: var(--accent); }
.feedadd button[type=submit] { padding: 10px; border-radius: 10px; background: var(--accent); color: #fff; font-weight: 700; }
.feedmsg { font-size: 13px; color: var(--muted); min-height: 1.2em; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.feedmsg.ok, .ok { color: #3ec98f; }
.feedmsg.bad, .bad { color: var(--hl); }
.feedcount { font-size: 12.5px; padding: 0 4px 6px; }
.feedhead { margin: 16px 4px 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.feedhead small { text-transform: none; letter-spacing: 0; }
.feedrow { display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; gap: 10px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.feedrow.off { opacity: .5; }
.feedname { font-weight: 600; }
.feedurl { display: block; font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feedstatus { font-size: 12px; margin-top: 2px; }
.feedcat { padding: 6px 8px; font-size: 12.5px; max-width: 200px; }
.feedrow .del { width: 32px; height: 32px; border-radius: 9px; color: var(--muted); }
.feedrow .del:hover { background: color-mix(in srgb, var(--hl) 15%, transparent); color: var(--hl); }
.sw { position: relative; width: 40px; height: 22px; display: inline-block; }
.sw input { opacity: 0; width: 0; height: 0; }
.sw span { position: absolute; inset: 0; border-radius: 999px; background: var(--line2); transition: .15s; cursor: pointer; }
.sw span::before { content: ""; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px; border-radius: 50%; background: #fff; transition: .15s; }
.sw input:checked + span { background: var(--accent); }
.sw input:checked + span::before { transform: translateX(18px); }
@media (max-width: 820px) {
  .feedrow { grid-template-columns: auto minmax(0, 1fr) auto; }
  .feedcat { grid-column: 2; max-width: 100%; }
}

/* giriş */
body.login { display: grid; place-items: center; min-height: 100vh; }
.login-box { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 30px; width: min(360px, 92vw); display: flex; flex-direction: column; gap: 10px; box-shadow: var(--shadow); }
.login-box h1 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
.login-box p { margin: 0 0 8px; }
.login-box input { padding: 11px 13px; border-radius: 10px; border: 1px solid var(--line2); background: var(--bg); color: var(--text); outline: none; }
.login-box input:focus { border-color: var(--accent); }
.login-box button { padding: 11px; border-radius: 10px; background: var(--accent); color: #fff; font-weight: 700; }
.login-box .err { color: var(--hl); }

@media (max-width: 820px) {
  #menuBtn { display: grid; }
  .brand { display: none; }
  .layout { grid-template-columns: 1fr; }
  .side { position: fixed; left: 0; top: 0; height: 100vh; width: min(300px, 85vw); z-index: 40; transform: translateX(-100%); transition: transform .2s; padding-top: calc(14px + env(safe-area-inset-top)); box-shadow: 0 0 40px rgba(0,0,0,.4); }
  .side.open { transform: none; }
  .backdrop.show { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 30; }
  .main { padding: 12px 10px 60px; }
  .card { padding: 12px 13px 10px; border-radius: 12px; }
  .card h3 { font-size: 16px; }
}