/* ============================================================
   DERSKOP — Konsept D · "Çalışma Panosu"
   Single-screen, app-like workspace / pinboard. Left tab rail,
   central board that swaps per view. Warm cream + green + gold,
   pinned cards, sticky notes, tape. Schibsted Grotesk.
   ============================================================ */

/* ₺ (U+20BA) glifini içermeyen web fontları için sistem fontu zorla
   iOS → .AppleSystemUIFont (SF Pro), Android → Roboto, Windows → Segoe UI */
@font-face {
  font-family: 'TRLira';
  src: local('Segoe UI'), local('.AppleSystemUIFont'), local('Roboto'), local('Noto Sans'), local('Arial'), local('Helvetica Neue');
  unicode-range: U+20BA;
}

:root {
  --cream:   #F1ECF6; --cream-2: #FBFAFD; --board: #EBE6F2; --card: #FFFFFF;
  --ink:     #241F2E; --ink-2: #4A4458; --muted: #837D90; --line: #E4DCEF;
  --green:   #7C3AED; --green-d: #5B21B6; --leaf: #9B6BF2; --green-l: #ECE4FB; --green-t: #F4EEFD;
  --gold:    #D7A24B; --gold-d: #A9761F; --gold-l: #F3E7CE; --gold-note: #EFE2C6;
  --clay:    #B5779E; --clay-l: #F0E5EC;
  --r: 24px; --r-lg: 34px; --r-md: 20px; --r-sm: 14px;
  --sh: 0 18px 40px -22px rgba(60,44,12,.5);
  --sh-sm: 0 10px 22px -14px rgba(60,44,12,.4);
  --display: "TRLira", "Schibsted Grotesk", system-ui, sans-serif;
  --body: "TRLira", "Hanken Grotesk", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--ink); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.55; overflow: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--gold); color: var(--ink); }
h1,h2,h3,h4 { font-family: var(--display); font-weight: 800; margin: 0; letter-spacing: -0.02em; line-height: 1.05; }
p { margin: 0; }

.btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--display); font-weight: 800; font-size: 14.5px; padding: 13px 22px; border-radius: 999px; cursor: pointer; border: 2px solid transparent; transition: transform .2s cubic-bezier(.34,1.56,.5,1), box-shadow .2s; white-space: nowrap; }
.btn .arr { transition: transform .2s; } .btn:hover .arr { transform: translateX(3px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 9px 0 -2px var(--green-d); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 13px 0 -2px var(--green-d); }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 4px 0 -2px var(--green-d); }
.btn-gold { background: var(--gold); color: var(--ink); box-shadow: 0 9px 0 -2px var(--gold-d); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 13px 0 -2px var(--gold-d); }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--ink); box-shadow: 0 8px 0 -2px var(--ink); }
.btn-ghost:hover { transform: translateY(-2px); box-shadow: 0 12px 0 -2px var(--ink); }
.btn-lg { padding: 15px 26px; font-size: 15.5px; }

/* ---------- App shell ---------- */
.app { height: 100%; display: flex; flex-direction: column; padding: 14px; gap: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 0 8px 14px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--green); color: #fff; font-family: var(--display); font-weight: 800; font-size: 19px; box-shadow: 0 5px 0 -1px var(--green-d); transform: rotate(-5deg); }
.brand-name { font-family: var(--display); font-weight: 800; font-size: 20px; color: var(--cream); }
.brand-name b { color: var(--leaf); }
.topbar .dots { display: flex; gap: 7px; margin-left: 14px; }
.topbar .dots i { width: 11px; height: 11px; border-radius: 50%; }
.top-right { display: flex; align-items: center; gap: 14px; }
.top-meta { color: #b8b09a; font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.top-meta .live { width: 8px; height: 8px; border-radius: 50%; background: var(--leaf); animation: blip 1.8s infinite; }
@keyframes blip { 0%,100%{ box-shadow: 0 0 0 0 rgba(124,58,237,.5);} 70%{ box-shadow: 0 0 0 6px rgba(124,58,237,0);} }

.shell { flex: 1; display: flex; gap: 14px; min-height: 0; }

/* rail */
.rail { width: 232px; flex: none; background: #241B36; border-radius: var(--r-lg); padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.rail .rlabel { color: #7c7660; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; padding: 8px 12px 6px; }
.rtab { display: flex; align-items: center; gap: 12px; padding: 13px 14px; border-radius: 14px; cursor: pointer; border: none; background: none; color: #cfc8b4; font-family: var(--display); font-weight: 700; font-size: 15px; text-align: left; width: 100%; transition: background .2s, color .2s; }
.rtab .ic { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: rgba(255,255,255,.06); flex: none; transition: background .2s; }
.rtab:hover { background: rgba(255,255,255,.05); color: #fff; }
.rtab.is-active { background: var(--green); color: #fff; }
.rtab.is-active .ic { background: rgba(255,255,255,.2); }
.rail .rspacer { flex: 1; }
.rail .rcta { background: var(--green); color: #fff; border-radius: 16px; padding: 16px; }
.rail .rcta b { font-family: var(--display); font-weight: 800; font-size: 15px; display: block; margin-bottom: 3px; }
.rail .rcta small { font-size: 12px; color: #E5DBFA; display: block; margin-bottom: 12px; }
.rail .rcta .btn { width: 100%; justify-content: center; background: #fff; color: var(--green); box-shadow: 0 8px 0 -2px #4a2390; }

/* board */
.board { flex: 1; background: var(--board); border-radius: var(--r-lg); overflow: hidden; position: relative; min-width: 0; display: flex; flex-direction: column; }
.board::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; background-image: radial-gradient(rgba(124,58,237,.16) 1.5px, transparent 1.5px); background-size: 26px 26px; }
.board-scroll { position: relative; z-index: 1; flex: 1; min-height: 0; overflow-y: auto; padding: 34px 40px 40px; }
.board-scroll::-webkit-scrollbar { width: 10px; } .board-scroll::-webkit-scrollbar-thumb { background: rgba(124,58,237,.3); border-radius: 999px; border: 3px solid var(--board); }

/* tweak toggles */
.no-grid .board::before { display: none; }
.no-tilt .stat-note, .no-tilt .t-note, .no-tilt .t-note .av, .no-tilt .price .pop, .no-tilt .brand-mark, .no-tilt .tape { transform: none !important; }

.view { display: none; }
.view.is-active { display: block; animation: viewIn .45s cubic-bezier(.22,1,.36,1); }
@keyframes viewIn { from { opacity: 0; transform: translateY(14px) scale(.99); } to { opacity: 1; transform: none; } }

.view-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 26px; flex-wrap: wrap; }
.view-head .kicker { display: inline-flex; align-items: center; gap: 8px; background: var(--gold-l); color: var(--gold-d); font-weight: 800; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; padding: 7px 13px; border-radius: 999px; border: 2px solid #E7D4A8; margin-bottom: 12px; }
.view-head h2 { font-size: clamp(28px, 3.4vw, 44px); }
.view-head p { color: var(--muted); font-size: 17px; margin-top: 8px; max-width: 520px; }

/* pinned card / note primitives */
.pin-card { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); padding: 24px; box-shadow: var(--sh-sm); position: relative; }
.pin-card .pin { position: absolute; top: -9px; left: 50%; transform: translateX(-50%); width: 18px; height: 18px; border-radius: 50%; background: var(--clay); border: 2px solid var(--ink); box-shadow: inset -2px -2px 0 rgba(0,0,0,.15); }
.tape { position: absolute; top: -10px; left: 22px; width: 64px; height: 22px; background: rgba(242,179,58,.55); border: 1px solid rgba(199,134,26,.4); transform: rotate(-6deg); border-radius: 3px; }
.note { background: var(--gold-note); border-radius: 6px; padding: 22px; box-shadow: var(--sh-sm); position: relative; }
.note.green { background: #E0D4F8; } .note.clay { background: #ECDCE6; }

/* ----- Overview view ----- */
.ov-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; align-items: start; }
.ov-hero { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r-lg); padding: 34px; box-shadow: var(--sh-sm); }
.ov-hero h1 { font-size: clamp(30px, 3.6vw, 50px); letter-spacing: -0.03em; }
.hl-wrap { position: relative; display: inline-block; } .hl-wrap > span { position: relative; z-index: 1; }
.hl-wrap .hi { position: absolute; left: -3px; right: -3px; bottom: 4px; height: .38em; background: var(--gold); border-radius: 999px; z-index: 0; }
.ov-hero p { color: var(--ink-2); font-size: 17px; margin: 18px 0 24px; max-width: 460px; }
.ov-hero .cta { display: flex; flex-wrap: wrap; gap: 12px; }
.ov-side { display: grid; gap: 18px; }
.panel { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); box-shadow: var(--sh); overflow: hidden; position: relative; }
.panel-bar { display: flex; align-items: center; gap: 6px; padding: 12px 15px; border-bottom: 2px solid var(--line); background: var(--cream-2); }
.panel-bar i { width: 10px; height: 10px; border-radius: 50%; }
.panel-bar .u { margin-left: 8px; font-size: 11px; font-weight: 600; color: var(--muted); background: var(--cream); border: 1.5px solid var(--line); padding: 3px 10px; border-radius: 7px; }
.panel-body { padding: 16px; display: grid; gap: 12px; }
.kpi-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kpi { border: 2px solid var(--line); border-radius: var(--r-sm); padding: 13px; }
.kpi.g { background: var(--green-t); border-color: #DDCFF7; } .kpi.y { background: var(--gold-l); border-color: #E7D4A8; }
.kpi .top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.kpi .ic { width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center; background: #fff; }
.kpi .delta { font-size: 11.5px; font-weight: 800; color: var(--green); }
.kpi .num { font-family: var(--display); font-weight: 800; font-size: 24px; }
.kpi .lbl { font-size: 11.5px; color: var(--muted); }
.bars { display: flex; align-items: flex-end; gap: 5px; height: 50px; }
.bars .b2 { flex: 1; background: var(--leaf); border-radius: 3px; transform-origin: bottom; transform: scaleY(0); animation: grow .7s cubic-bezier(.22,1,.36,1) forwards; }
.bars .b2:nth-child(even){ background: var(--gold);} @keyframes grow { to { transform: scaleY(1);} }

.stat-notes { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-top: 22px; }
.stat-note { padding: 18px; border-radius: 8px; position: relative; }
.stat-note:nth-child(1){ background: var(--gold-note); transform: rotate(-1.5deg);} 
.stat-note:nth-child(2){ background: #E0D4F8; transform: rotate(1deg);} 
.stat-note:nth-child(3){ background: #ECDCE6; transform: rotate(-1deg);} 
.stat-note:nth-child(4){ background: #E6DBF9; transform: rotate(1.5deg);} 
.stat-note .n { font-family: var(--display); font-weight: 800; font-size: 38px; letter-spacing: -0.02em; }
.stat-note .l { font-weight: 700; font-size: 13.5px; margin-top: 2px; }
.stat-note .s { font-size: 12px; color: rgba(25,24,15,.55); }

.ov-pains { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 22px; }
.ov-pain { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r-md); padding: 20px; box-shadow: var(--sh-sm); }
.ov-pain .old { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 13px; background: var(--clay-l); padding: 5px 11px; border-radius: 999px; }
.ov-pain .old s { text-decoration-color: var(--clay); }
.ov-pain .new { display: flex; gap: 9px; align-items: flex-start; margin-top: 12px; }
.ov-pain .new .v { width: 21px; height: 21px; border-radius: 6px; background: var(--green); color: #fff; display: grid; place-items: center; font-size: 11px; font-weight: 900; flex: none; margin-top: 1px; }
.ov-pain .new b { font-family: var(--display); font-weight: 800; font-size: 14.5px; line-height: 1.3; }

.section-label { font-family: var(--display); font-weight: 800; font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 9px; margin: 30px 0 4px; }
.section-label::before { content: ""; width: 18px; height: 3px; border-radius: 3px; background: var(--green); }

/* ----- Features view (pinned grid) ----- */
.feat-board { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.fb { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); padding: 26px; box-shadow: var(--sh-sm); display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.fb:hover { transform: translateY(-5px) rotate(-.6deg); box-shadow: var(--sh); }
.fb.c4 { grid-column: span 4; } .fb.c3 { grid-column: span 3; } .fb.c2 { grid-column: span 2; }
.fb .fic { width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 18px; border: 2px solid; }
.fic.green { background: var(--green-t); border-color: #DDCFF7; color: var(--green); }
.fic.gold { background: var(--gold-l); border-color: #E7D4A8; color: var(--gold-d); }
.fic.clay { background: var(--clay-l); border-color: #E2CBDC; color: var(--clay); }
.fb .ftag { font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 7px; }
.fb h3 { font-size: 23px; margin-bottom: 9px; }
.fb > p { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.fchips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; }
.fchips span { font-size: 12.5px; font-weight: 700; color: var(--ink-2); background: var(--cream); border: 1.5px solid var(--line); padding: 6px 11px; border-radius: 999px; }
.fb-mock { margin-top: 16px; border-top: 2px dashed var(--line); padding-top: 16px; display: grid; gap: 9px; }
.row-item { display: flex; align-items: center; gap: 10px; background: var(--cream-2); border: 1.5px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.row-item .av { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 12.5px; flex: none; }
.row-item .nm { flex: 1; font-weight: 700; font-size: 14px; }
.row-item .tag { font-size: 10.5px; font-weight: 800; color: var(--green); background: var(--green-l); padding: 4px 9px; border-radius: 999px; }
.fin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fin { border: 2px solid var(--line); border-radius: 13px; padding: 13px; }
.fin.g { background: var(--green-t); border-color: #DDCFF7; } .fin.c { background: var(--clay-l); border-color: #E2CBDC; }
.fin .l { font-size: 11px; color: var(--muted); font-weight: 600; }
.fin .v { font-family: var(--display); font-weight: 800; font-size: 22px; margin-top: 3px; }
.fin .s { font-size: 11px; font-weight: 800; margin-top: 2px; }

/* nav logo */
img.brand-mark { object-fit: cover; padding: 0; background: transparent; }

/* ----- Pricing view ----- */
.price-board { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 820px; }
.price { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r-lg); padding: 32px; display: flex; flex-direction: column; box-shadow: var(--sh-sm); position: relative; }
.price.feat::before { content: ""; position: absolute; inset: 0; border-radius: var(--r-lg); border: 2px solid var(--green); pointer-events: none; }
.price .pop { position: absolute; top: -14px; right: 22px; background: var(--green); color: #fff; font-family: var(--display); font-weight: 800; font-size: 12px; padding: 7px 15px; border-radius: 999px; border: 2px solid var(--ink); transform: rotate(4deg); }
.price .ptag { font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.price .pname { font-family: var(--display); font-weight: 800; font-size: 36px; margin: 6px 0 4px; }
.price .pdesc { color: var(--muted); font-size: 14px; min-height: 38px; }
.price .pamount { font-family: var(--display); font-weight: 800; font-size: 38px; margin: 14px 0 20px; }
.price .pamount span { font-family: var(--body); font-size: 15px; font-weight: 600; color: var(--muted); }
.price ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; flex: 1; }
.price li { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; font-weight: 500; color: var(--ink-2); }
.price li .v { width: 20px; height: 20px; border-radius: 6px; background: var(--green-l); color: var(--green); display: grid; place-items: center; font-size: 10.5px; font-weight: 900; flex: none; margin-top: 1px; }
.price .btn { width: 100%; justify-content: center; }
.wa-note { margin-top: 22px; max-width: 820px; background: var(--green-t); border: 2px solid #DDCFF7; border-radius: var(--r-md); padding: 24px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.wa-note b { font-family: var(--display); font-weight: 800; font-size: 19px; } .wa-note p { color: var(--muted); font-size: 14px; margin-top: 3px; }

/* ----- Testimonials view ----- */
.t-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.t-note { background: var(--gold-note); border-radius: 8px; padding: 24px; box-shadow: var(--sh-sm); position: relative; }
.t-board .t-note:nth-child(3n+1){ background: var(--gold-note); transform: rotate(-1.4deg);} 
.t-board .t-note:nth-child(3n+2){ background: #E0D4F8; transform: rotate(.8deg);} 
.t-board .t-note:nth-child(3n+3){ background: #ECDCE6; transform: rotate(1.4deg);} 
.t-note .stars { color: var(--gold-d); font-size: 14px; letter-spacing: 2px; margin-bottom: 10px; }
.t-note p { font-size: 15px; color: var(--ink); line-height: 1.5; margin-bottom: 16px; font-weight: 500; }
.t-note .who { display: flex; align-items: center; gap: 11px; }
.t-note .av { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 13px; transform: rotate(-4deg); flex: none; }
.t-note b { font-family: var(--display); font-weight: 800; font-size: 14px; display: block; }
.t-note small { color: rgba(25,24,15,.55); font-size: 12px; }
.t-bottom { display: flex; gap: 40px; margin-top: 26px; }
.t-bottom .v { font-family: var(--display); font-weight: 800; font-size: 30px; color: var(--green); }
.t-bottom .l { font-size: 11.5px; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }

/* ----- FAQ view ----- */
.faq-board { max-width: 760px; display: grid; gap: 12px; }
.faq { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r-md); overflow: hidden; }
.faq-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; background: none; border: none; cursor: pointer; text-align: left; font-family: var(--display); font-weight: 800; font-size: 16.5px; color: var(--ink); }
.faq-ic { width: 28px; height: 28px; border-radius: 9px; background: var(--green-t); border: 2px solid #DDCFF7; display: grid; place-items: center; flex: none; position: relative; transition: .25s; }
.faq-ic::before, .faq-ic::after { content: ""; position: absolute; background: var(--green); border-radius: 2px; transition: .25s; }
.faq-ic::before { width: 12px; height: 2.5px; } .faq-ic::after { width: 2.5px; height: 12px; }
.faq.is-open .faq-ic { background: var(--green); border-color: var(--green-d); }
.faq.is-open .faq-ic::before, .faq.is-open .faq-ic::after { background: #fff; }
.faq.is-open .faq-ic::after { transform: scaleY(0); }
.faq-body { max-height: 0; overflow: hidden; transition: max-height .35s cubic-bezier(.4,0,.2,1); }
.faq-body p { padding: 0 22px 18px; color: var(--muted); font-size: 14.5px; line-height: 1.55; }

/* ----- Contact view ----- */
.contact-board { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.contact-info { display: grid; gap: 14px; align-content: start; }
.cinfo { display: flex; align-items: center; gap: 14px; background: var(--card); border: 2px solid var(--ink); border-radius: var(--r-md); padding: 18px; box-shadow: var(--sh-sm); }
.cinfo .ic { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; flex: none; border: 2px solid; }
.cinfo .ic.green { background: var(--green-t); border-color: #DDCFF7; } .cinfo .ic.gold { background: var(--gold-l); border-color: #E7D4A8; } .cinfo .ic.clay { background: var(--clay-l); border-color: #E2CBDC; }
.cinfo small { color: var(--muted); font-size: 12.5px; font-weight: 600; }
.cinfo b { font-family: var(--display); font-weight: 800; font-size: 17px; display: block; }
.contact-cta { background: var(--green); color: #fff; border-radius: var(--r-lg); padding: 38px; border: 2px solid var(--green-d); box-shadow: var(--sh); display: flex; flex-direction: column; justify-content: space-between; gap: 24px; position: relative; overflow: hidden; }
.contact-cta::before { content: ""; position: absolute; top: -60px; right: -40px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,.08); }
.contact-cta > * { position: relative; z-index: 1; }
.contact-cta .pill { display: inline-flex; align-items: center; gap: 8px; background: var(--gold); color: var(--ink); border-radius: 999px; padding: 7px 14px; font-family: var(--display); font-weight: 800; font-size: 12.5px; margin-bottom: 18px; border: 2px solid var(--green-d); }
.contact-cta .pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }
.contact-cta h3 { color: #fff; font-size: clamp(26px, 3vw, 36px); margin-bottom: 14px; }
.contact-cta p { color: #E8E0FB; font-size: 16px; }
.contact-cta .btn { width: 100%; justify-content: center; }
.contact-cta .fine { text-align: center; font-size: 12px; color: #CFC4EE; margin-top: 10px; font-weight: 600; }

/* switcher */
.switcher { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 80; display: flex; gap: 4px; background: #000; padding: 5px; border-radius: 999px; box-shadow: 0 18px 40px -16px rgba(0,0,0,.6); }
.switcher a { font-family: var(--display); font-weight: 800; font-size: 13px; color: #cfc8b6; width: 36px; height: 30px; border-radius: 999px; display: grid; place-items: center; transition: .2s; }
.switcher a.on { background: var(--green); color: #fff; }
.switcher a:not(.on):hover { color: #fff; background: rgba(255,255,255,.1); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  /* body overflow: visible → viewport scroll container olur, sticky çalışır */
  html { height: auto; }
  body { overflow: visible; height: auto; }
  .app { height: auto; min-height: 100vh; }
  .shell { flex-direction: column; }
  .topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--ink);
    margin: -14px -14px 0;
    padding: 14px 22px 14px;
  }
  .rail {
    position: sticky;
    top: 62px;
    z-index: 19;
    width: 100%; flex-direction: row; flex-wrap: nowrap; overflow-x: auto; gap: 8px; border-radius: var(--r-md);
  }
  .rail .rlabel, .rail .rspacer, .rail .rcta { display: none; }
  .rtab { white-space: nowrap; width: auto; }
  .rtab .ic { display: none; }
  .board { border-radius: var(--r-md); display: block; }
  .board-scroll { position: static; flex: none; padding: 24px 20px 40px; }
  .ov-grid, .contact-board, .price-board { grid-template-columns: 1fr; }
  .feat-board { grid-template-columns: repeat(2, 1fr); }
  .fb.c4, .fb.c3, .fb.c2 { grid-column: span 1; }
  .stat-notes { grid-template-columns: 1fr 1fr; }
  .ov-pains, .t-board { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .feat-board { grid-template-columns: 1fr; }
  .stat-notes { grid-template-columns: 1fr 1fr; }
  .topbar .dots, .top-meta { display: none; }
}