/* Arel Yazılım — public site
   Marka oranı: %60 beyaz · %30 gri · %10 siyah */
:root {
  --white: #fafaf9;
  --paper: #ffffff;
  --g1: #f1f1ef;
  --g2: #e2e2df;
  --g3: #bdbdb9;
  --g4: #8a8a86;
  --g5: #55554f;
  --black: #0b0b0b;
  --radius: 18px;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --display: 'Big Shoulders Display', 'Inter', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--white); color: var(--black);
  font: 16px/1.55 Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
#codefield { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
main, .nav, .footer { position: relative; z-index: 1; }
.mono { font-family: var(--mono); }
.muted { color: var(--g4); }
a { color: inherit; }
h1, h2 { font-family: var(--display); font-weight: 800; letter-spacing: .01em; line-height: .95; margin: 0; text-transform: uppercase; }
h2 { font-size: clamp(36px, 5vw, 60px); }

.glass {
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border: 1px solid var(--g2); border-radius: var(--radius);
  box-shadow: 0 1px 0 #fff inset, 0 20px 40px -24px rgba(0, 0, 0, .18);
}

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px;
  font: 600 14px/1 Inter, sans-serif; text-decoration: none; border: 1px solid var(--black); cursor: pointer;
  transition: transform .15s, background .15s, color .15s;
}
.btn:active { transform: scale(.97); }
.btn-dark { background: var(--black); color: var(--white); }
.btn-dark:hover { background: #2a2a28; }
.btn-ghost { background: rgba(255,255,255,.6); color: var(--black); }
.btn-ghost:hover { background: var(--black); color: var(--white); }

/* NAV */
.nav {
  position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(250, 250, 249, .78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--g2); z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.mark { display: inline-block; width: 40px; height: 40px; background: url(../assets/logo.png) 50% 35% / 265% no-repeat; mix-blend-mode: multiply; }
.brand span { font: 800 22px/1 var(--display); letter-spacing: .08em; }
.brand b { font-weight: 800; color: var(--g4); margin-left: 4px; }
.links { display: flex; gap: 26px; }
.links a { text-decoration: none; font-size: 14px; color: var(--g5); }
.links a:hover { color: var(--black); }
.nav-right { display: flex; gap: 10px; align-items: center; }
.xp-pill { font: 600 12px/1 var(--mono); padding: 8px 12px; border-radius: 999px; background: var(--g1); border: 1px solid var(--g2); }
.xp-pill.bump { animation: bump .5s; }
@keyframes bump { 40% { transform: scale(1.18); background: var(--black); color: var(--white); } }

/* HERO */
.hero {
  min-height: calc(100vh - 67px); display: grid; grid-template-columns: 1.1fr .9fr; align-items: center;
  gap: 32px; padding: 40px clamp(16px, 6vw, 88px);
}
.eyebrow { font-size: 12px; color: var(--g5); display: flex; align-items: center; gap: 8px; margin: 0 0 22px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--black); display: inline-block; }
.dot.live { animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(11,11,11,.4); } 50% { box-shadow: 0 0 0 7px rgba(11,11,11,0); } }
.hero h1 { font-size: clamp(56px, 9.5vw, 132px); }
.hero h1 .slash { color: var(--g3); margin: 0 .04em; }
.hero h1 em { font-style: normal; background: var(--black); color: var(--white); padding: 0 .12em; }
.terminal { margin: 28px 0 30px; font-size: clamp(14px, 1.4vw, 17px); color: var(--g5); min-height: 1.6em; }
.terminal .prompt { color: var(--g4); }
.caret { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats strong { display: block; font: 800 44px/1 var(--display); }
.hero-stats span { font-size: 13px; color: var(--g4); }
.hint { font-size: 12px; color: var(--g3); margin-top: 34px; }

.next-card { padding: 26px; align-self: end; max-width: 380px; justify-self: end; margin-bottom: 4vh; }
.next-card .label { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--g4); }
.next-card h3 { font: 800 30px/1 var(--display); text-transform: uppercase; margin: 12px 0 6px; }
.countdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 18px 0; }
.countdown div { background: var(--black); color: var(--white); border-radius: 10px; padding: 10px 0; text-align: center; }
.countdown b { display: block; font: 700 24px/1 var(--mono); }
.countdown small { font-size: 10px; color: var(--g3); letter-spacing: .1em; }
.bar { height: 6px; background: var(--g2); border-radius: 9px; overflow: hidden; margin-top: 8px; }
.bar i { display: block; height: 100%; background: var(--black); border-radius: 9px; transition: width .6s; }

/* TICKER */
.ticker { overflow: hidden; border-block: 1px solid var(--g2); background: var(--black); color: var(--white); }
.ticker-track { display: flex; gap: 60px; padding: 12px 0; width: max-content; animation: tick 40s linear infinite; font: 500 13px/1 var(--mono); }
.ticker-track span::before { content: '▸ '; color: var(--g4); }
@keyframes tick { to { transform: translateX(-50%); } }

/* SECTIONS */
.section { padding: 110px clamp(16px, 6vw, 88px) 0; }
.section-head { margin-bottom: 36px; }
.kicker { font-size: 12px; color: var(--g4); margin: 0 0 12px; letter-spacing: .06em; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 22px; }
.chip { font: 500 13px/1 Inter; padding: 9px 14px; border-radius: 999px; border: 1px solid var(--g2); background: rgba(255,255,255,.7); cursor: pointer; }
.chip.on { background: var(--black); color: var(--white); border-color: var(--black); }

.events { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.event { padding: 22px; display: flex; flex-direction: column; gap: 10px; transition: transform .2s, box-shadow .2s; }
.event:hover { transform: translateY(-4px); box-shadow: 0 1px 0 #fff inset, 0 30px 50px -28px rgba(0,0,0,.35); }
.event .top { display: flex; justify-content: space-between; align-items: center; }
.tag { font: 600 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: 6px 9px; border-radius: 6px; background: var(--g1); border: 1px solid var(--g2); }
.date { font: 700 13px/1 var(--mono); }
.event h3 { font: 800 28px/1 var(--display); text-transform: uppercase; margin: 6px 0 0; }
.event p { margin: 0; color: var(--g5); font-size: 14px; flex: 1; }
.meta { display: flex; justify-content: space-between; font: 12px/1 var(--mono); color: var(--g4); }
.event .btn { justify-content: center; margin-top: 6px; }
.event.going .btn { background: var(--g1); color: var(--black); border-color: var(--g3); }
.empty { color: var(--g4); font-family: var(--mono); font-size: 14px; }

.split { display: grid; grid-template-columns: 1.5fr 1fr; gap: 18px; }
.quest, .streak { padding: 30px; }
.quest h2 { font-size: clamp(30px, 3.4vw, 44px); }
.code { background: var(--black); color: #e9e9e6; border-radius: 12px; padding: 18px; font: 14px/1.6 var(--mono); overflow-x: auto; margin: 22px 0; }
.options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.opt { font: 500 14px/1.2 var(--mono); padding: 14px; text-align: left; border-radius: 12px; border: 1px solid var(--g2); background: #fff; cursor: pointer; transition: all .15s; }
.opt:hover:not(:disabled) { border-color: var(--black); }
.opt.right { background: var(--black); color: #fff; border-color: var(--black); }
.opt.wrong { background: var(--g1); color: var(--g4); text-decoration: line-through; }
.opt:disabled { cursor: default; }
.q-result { min-height: 1.4em; margin: 16px 0 0; font-size: 14px; }
.streak-num { font: 900 120px/.9 var(--display); margin: 10px 0 18px; }
.streak-num small { font-size: 22px; color: var(--g4); margin-left: 8px; }
.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-bottom: 18px; }
.week div { aspect-ratio: 1; border-radius: 8px; background: var(--g1); border: 1px solid var(--g2); display: grid; place-items: center; font: 600 11px var(--mono); color: var(--g4); }
.week div.done { background: var(--black); color: #fff; border-color: var(--black); }
.week div.today { outline: 2px dashed var(--g4); outline-offset: 2px; }
.name-field { display: grid; gap: 6px; margin-top: 18px; }
.name-field span { font-size: 11px; color: var(--g4); }
input, select { font: 15px Inter; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--g2); background: #fff; color: var(--black); width: 100%; }
input:focus, select:focus { outline: 2px solid var(--black); outline-offset: 1px; }

.board { list-style: none; margin: 0; padding: 8px; counter-reset: r; }
.board li { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 12px; }
.board li + li { border-top: 1px solid var(--g1); }
.board li::before { counter-increment: r; content: counter(r, decimal-leading-zero); font: 700 14px var(--mono); color: var(--g3); }
.board li:nth-child(-n+3)::before { color: var(--black); }
.board li.me { background: var(--black); color: #fff; }
.board li.me .dept { color: var(--g3); }
.board .name { font-weight: 600; }
.board .dept { font-size: 12px; color: var(--g4); display: block; font-weight: 400; }
.board .xp { font: 700 15px var(--mono); }
.board .xbar { grid-column: 2 / 4; height: 3px; background: var(--g1); border-radius: 3px; margin-top: -6px; }
.board .xbar i { display: block; height: 100%; background: var(--g4); border-radius: 3px; }

.feed { display: grid; gap: 10px; max-width: 820px; }
.post { padding: 18px 22px; display: flex; gap: 16px; align-items: baseline; }
.post time { font: 12px var(--mono); color: var(--g4); white-space: nowrap; min-width: 90px; }
.post.pinned { border-color: var(--black); }
.post.pinned::after { content: 'SABİT'; margin-left: auto; font: 700 10px var(--mono); letter-spacing: .1em; }

.join { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding-bottom: 120px; }
.join-form { padding: 28px; display: grid; gap: 14px; }
.join-form label { display: grid; gap: 6px; font-size: 13px; color: var(--g5); }
.form-msg { min-height: 1.2em; margin: 0; font-size: 13px; }

.footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 26px clamp(16px, 6vw, 88px); border-top: 1px solid var(--g2); background: rgba(250,250,249,.85); font-size: 12px; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, calc(100% + 40px)); background: var(--black); color: #fff; padding: 12px 18px; border-radius: 12px; font-size: 13px; z-index: 50; transition: transform .35s cubic-bezier(.2,.9,.3,1.3); }
.toast.show { transform: translate(-50%, 0); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s, transform .7s; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 860px) {
  .links { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 32px; }
  .next-card { justify-self: stretch; max-width: none; }
  .split, .join { grid-template-columns: 1fr; }
  .options { grid-template-columns: 1fr; }
  .section { padding-top: 80px; }
  .post { flex-direction: column; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track, .dot.live, .caret { animation: none; }
  .reveal { opacity: 1; transform: none; }
}