@font-face { font-family: "Instrument Sans"; font-weight: 400; font-display: swap; src: url(fonts/instrument_sans_400.ttf) format("truetype"); }
@font-face { font-family: "Instrument Sans"; font-weight: 500; font-display: swap; src: url(fonts/instrument_sans_500.ttf) format("truetype"); }
@font-face { font-family: "Instrument Sans"; font-weight: 600; font-display: swap; src: url(fonts/instrument_sans_600.ttf) format("truetype"); }
@font-face { font-family: "Instrument Sans"; font-weight: 700; font-display: swap; src: url(fonts/instrument_sans_700.ttf) format("truetype"); }

/* Uygulamanın tokenları (design/Tokens.kt) */
:root {
  --bg: #F3F4F6;
  --surface: #FFFFFF;
  --surface-alt: #EDEDF2;
  --label: #17191C;
  --secondary: #686B73;
  --tertiary: #BFBFC6;
  --separator: #E4E4EA;
  --accent: #007AFF;
  --danger: #E5484D;
  --ok: #2E9E5B;
  --desk: #E6E7EB;
  --desk-edge: #D9DADF;
  --shadow: 0 1px 2px rgba(20,22,28,.06), 0 8px 24px rgba(20,22,28,.06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --surface: #1C1C1E;
    --surface-alt: #2C2C2E;
    --label: #F5F5F7;
    --secondary: #98989F;
    --tertiary: #5A5A60;
    --separator: #2A2A2C;
    --accent: #409CFF;
    --danger: #FF453A;
    --ok: #32C26A;
    --desk: #121315;
    --desk-edge: #1E1F22;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.3);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #000000; --surface: #1C1C1E; --surface-alt: #2C2C2E; --label: #F5F5F7; --secondary: #98989F;
  --tertiary: #5A5A60; --separator: #2A2A2C; --accent: #409CFF; --danger: #FF453A; --ok: #32C26A;
  --desk: #121315; --desk-edge: #1E1F22; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--label);
  font: 400 17px/1.5 "Instrument Sans", system-ui, sans-serif;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; letter-spacing: -0.02em; }
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* ───── nav ───── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid var(--separator);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--label); }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 7px; }
.nav-row { gap: 16px; }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 15px; margin-left: auto; }
.nav-links a { color: var(--secondary); }
.nav-links a:hover { color: var(--label); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.menu-btn {
  display: none; width: 40px; height: 40px; border-radius: 20px; border: 0; padding: 0; cursor: pointer;
  background: var(--surface); color: var(--label); box-shadow: inset 0 0 0 1px var(--separator);
  place-items: center;
}
.menu-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.menu-btn .m-close { display: none; }
.nav.open .menu-btn .m-open { display: none; }
.nav.open .menu-btn .m-close { display: inline; }
@media (max-width: 640px) {
  .menu-btn { display: grid; }
  .nav-links {
    position: absolute; left: 0; right: 0; top: 100%; margin: 0;
    display: none; flex-direction: column; align-items: stretch; gap: 0;
    padding: 4px 16px 14px; background: var(--bg); border-bottom: 1px solid var(--separator);
    box-shadow: 0 18px 30px -18px rgba(0,0,0,.3);
  }
  .nav.open .nav-links { display: flex; animation: menu-in .22s cubic-bezier(0, 0, .2, 1); }
  .nav-links a { padding: 13px 4px; font-size: 18px; color: var(--label); }
  .nav-links a + a { border-top: 1px solid var(--separator); }
}
@keyframes menu-in { from { opacity: 0; transform: translateY(-8px); } }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 22px; border-radius: 23px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: 16px;
  border: 0; cursor: pointer; transition: transform .15s, filter .15s;
}
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.btn:active { transform: scale(.98); }
.btn-small { height: 34px; padding: 0 16px; font-size: 14px; border-radius: 17px; }
.btn-ghost { background: var(--surface); color: var(--label); box-shadow: inset 0 0 0 1px var(--separator); }

/* ───── hero ───── */
.hero { padding: 72px 20px 36px; text-align: center; }
.hero h1 { font-size: clamp(40px, 7vw, 72px); line-height: 1.02; font-weight: 700; letter-spacing: -0.035em; }
.lead { max-width: 620px; margin: 22px auto 0; font-size: clamp(17px, 2vw, 20px); color: var(--secondary); }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.meta { margin: 16px 0 0; font-size: 14px; color: var(--secondary); }
@media (max-width: 600px) { .hero { padding: 44px 16px 24px; } }

/* ───── demo ───── */
.demo { padding-top: 40px; padding-bottom: 24px; }
.demo-head { display: flex; gap: 32px; align-items: flex-end; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; }
.demo-head h2 { font-size: clamp(28px, 4vw, 40px); }
.sub { margin: 8px 0 0; color: var(--secondary); max-width: 520px; }
.missions { list-style: none; margin: 0; padding: 14px 18px; background: var(--surface); border-radius: 18px; box-shadow: var(--shadow); font-size: 15px; display: grid; gap: 8px; min-width: 300px; }
.missions li { display: flex; gap: 10px; align-items: center; color: var(--label); transition: color .3s; }
.tick { width: 20px; height: 20px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--tertiary); flex: none; position: relative; transition: background .3s, box-shadow .3s; }
.missions li.done { color: var(--secondary); }
.missions li.done .tick { background: var(--ok); box-shadow: none; }
.missions li.done .tick::after { content: ""; position: absolute; left: 6.5px; top: 3.5px; width: 5px; height: 10px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
@media (max-width: 600px) {
  .missions { min-width: 0; width: 100%; padding: 12px 14px; font-size: 14px; }
  .demo { padding-top: 28px; }
  .demo-head { gap: 16px; margin-bottom: 14px; }
  .sub { font-size: 15px; }
  .stage-host { border-radius: 22px; }
}

.stage-host {
  position: relative;
  background:
    radial-gradient(120% 90% at 50% 0%, color-mix(in srgb, var(--desk) 60%, #fff 40%) 0%, var(--desk) 60%),
    var(--desk);
  border-radius: 28px;
  box-shadow: inset 0 0 0 1px var(--desk-edge);
  overflow: hidden;
  user-select: none; -webkit-user-select: none;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .stage-host { background: radial-gradient(120% 90% at 50% 0%, #1b1c1f 0%, var(--desk) 60%), var(--desk); }
}
:root[data-theme="dark"] .stage-host { background: radial-gradient(120% 90% at 50% 0%, #1b1c1f 0%, var(--desk) 60%), var(--desk); }
.stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; z-index: 1; pointer-events: none; }
.stage > * { pointer-events: auto; }
.stage-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.stage-tools { display: flex; gap: 8px; flex: none; }
.tool {
  font: 500 13px "Instrument Sans", system-ui, sans-serif; color: var(--secondary);
  height: 32px; padding: 0 14px; border-radius: 16px; border: 0; cursor: pointer;
  background: color-mix(in srgb, var(--surface) 85%, transparent); box-shadow: inset 0 0 0 1px var(--separator);
}
.tool:hover { color: var(--label); }
.demo-foot { font-size: 13px; color: var(--secondary); margin: 0; flex: 1 1 260px; }

.device { position: absolute; transform-origin: 0 0; }
.zone { position: absolute; pointer-events: none; }
.debug .zone { outline: 2px dashed rgba(255,0,0,.5); }

/* ───── barkod okuyucu ───── */
.scanner { width: 260px; height: 420px; }
.scanner-art { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.scanner-window { fill: #5a1012; transition: fill .2s; }
.scanner-led { fill: #e04545; transition: fill .2s; }
.scanner[data-state="near"] .scanner-window { fill: #ff3b3b; }
.scanner[data-state="ok"] .scanner-led, .scanner[data-state="ok"] .scanner-window { fill: #34d26e; }
.beam {
  position: absolute; left: 226px; top: 40px; width: 230px; height: 240px; pointer-events: none;
  clip-path: polygon(0 26%, 100% 0, 100% 100%, 0 51%);
  background: linear-gradient(90deg, rgba(255,40,40,.42), rgba(255,40,40,.06) 85%, rgba(255,40,40,0));
  opacity: .55; transition: opacity .25s, filter .25s;
}
.beam-line { position: absolute; left: 0; right: 0; top: 50%; height: 2px; background: linear-gradient(90deg, rgba(255,60,60,.95), rgba(255,60,60,.15)); box-shadow: 0 0 8px rgba(255,40,40,.8); animation: sweep 1.6s ease-in-out infinite alternate; }
@keyframes sweep { from { transform: translateY(-34px); } to { transform: translateY(34px); } }
.scanner[data-state="near"] .beam { opacity: 1; }
.scanner[data-state="ok"] .beam { opacity: 1; filter: hue-rotate(120deg) saturate(1.4); }
.scanner[data-state="err"] .beam { opacity: .9; animation: blink .18s 3; }
@keyframes blink { 50% { opacity: .2; } }
.scanner .zone { left: 236px; top: 40px; width: 210px; height: 240px; }

.readout {
  position: absolute; left: 6px; top: 404px; width: 250px;
  display: flex; gap: 10px; align-items: center; padding: 10px 14px;
  background: var(--surface); border-radius: 14px; box-shadow: var(--shadow);
  font-size: 13px; line-height: 1.25;
}
.readout-text { display: grid; min-width: 0; }
.readout-text b { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.readout-text small { color: var(--secondary); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.readout-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--tertiary); flex: none; transition: background .2s; }
.readout[data-state="ok"] .readout-dot { background: var(--ok); }
.readout[data-state="err"] .readout-dot { background: var(--danger); }
.readout[data-state="near"] .readout-dot { background: #ff9f0a; }
.pos-readout[data-state="near"] .readout-dot, .readout[data-state="reading"] .readout-dot { background: var(--accent); }
.pos-readout { left: -15px; top: 440px; }
.stage-status { display: none; }
.stage-status:not(:empty) { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.stage-status .readout { position: static; width: auto; min-width: 0; padding: 9px 11px; gap: 8px; border-radius: 12px; }
.stage-status .readout-text b { font-size: 12.5px; }
.stage-status .readout-text small { font-size: 11.5px; }

/* ───── POS ───── */
.pos { width: 220px; height: 420px; }
.pos-body {
  position: absolute; inset: 0; border-radius: 30px 30px 36px 36px;
  background: linear-gradient(160deg, #3a3e46, #1c1e22 70%);
  box-shadow: 0 30px 50px -20px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.4);
  padding: 18px 16px;
}
.pos-leds { display: flex; justify-content: center; gap: 10px; height: 10px; margin-bottom: 8px; }
.pos-leds i { width: 22px; height: 6px; border-radius: 3px; background: #2b2e34; box-shadow: inset 0 1px 1px rgba(0,0,0,.6); transition: background .12s, box-shadow .12s; }
.pos-leds i.on { background: #39d46f; box-shadow: 0 0 8px #39d46f; }
.pos-screen {
  position: relative; height: 196px; border-radius: 12px; overflow: hidden;
  background: #F4F6F8; color: #17191C; box-shadow: inset 0 0 0 2px #0c0d0f;
  font-size: 12px;
}
.pos[data-state="near"] .pos-screen { box-shadow: inset 0 0 0 2px #0c0d0f, 0 0 0 3px rgba(64,156,255,.55); }
.ps { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 12px; text-align: center; opacity: 0; transform: scale(.96); transition: opacity .2s, transform .25s; }
.pos[data-state="idle"] .ps-idle, .pos[data-state="near"] .ps-idle,
.pos[data-state="reading"] .ps-reading, .pos[data-state="ok"] .ps-ok, .pos[data-state="err"] .ps-err { opacity: 1; transform: none; }
.ps-err { background: #FFF3F3; }
.ps-err strong { color: #B4232A; }
.err-mark { width: 50px; height: 50px; }
.err-mark circle { fill: #E5484D; }
.err-mark path { fill: none; stroke: #fff; stroke-width: 4.5; stroke-linecap: round; }
.pos[data-state="err"] .err-mark { animation: shake .4s ease-in-out; }
@keyframes shake { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }
.ps small { color: #686B73; font-size: 11px; }
.pos-amount { font-size: 30px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; }
.cl-big { width: 40px; height: 40px; color: #007AFF; margin: 6px 0 2px; }
.pos[data-state="near"] .cl-big { animation: pulse 0.9s ease-in-out infinite; }
@keyframes pulse { 50% { transform: scale(1.15); opacity: .7; } }
.ps span { color: #4a4d55; font-size: 11.5px; line-height: 1.3; }
.ps strong { font-size: 15px; }
.spinner { width: 36px; height: 36px; border-radius: 50%; border: 3px solid #d9dce2; border-top-color: #007AFF; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.ok-mark { width: 54px; height: 54px; }
.ok-mark circle { fill: #2E9E5B; }
.ok-mark path { fill: none; stroke: #fff; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 40; stroke-dashoffset: 40; }
.pos[data-state="ok"] .ok-mark path { animation: draw .35s .1s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.pos-ok-amount { font-size: 14px !important; color: #17191C !important; font-weight: 600; }
.pos-keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-top: 16px; }
.pos-keys i {
  font-style: normal; text-align: center; height: 32px; line-height: 32px; border-radius: 8px;
  background: linear-gradient(#41454e, #2e3138); color: #d7dae0; font-size: 14px; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 2px 0 #121316;
}
.pos-keys .k-x { background: linear-gradient(#d84a4a, #b33232); color: #fff; }
.pos-keys .k-ok { background: linear-gradient(#3cb36a, #278a4e); color: #fff; }
.pos .zone { left: 8px; top: 20px; width: 204px; height: 220px; }

.receipt { position: absolute; left: 30px; width: 160px; top: 2px; height: 0; overflow: visible; }
.receipt-paper {
  position: absolute; left: 0; right: 0; bottom: 0; height: 150px;
  background: #fff; color: #2a2c31; font: 600 10px/1.45 ui-monospace, "Cascadia Mono", Consolas, monospace;
  padding: 10px 10px 14px; display: flex; flex-direction: column; align-items: center; gap: 2px;
  box-shadow: 0 6px 16px rgba(0,0,0,.18);
  transform: translateY(150px); transition: transform .9s cubic-bezier(.3,.7,.3,1), opacity .4s;
  -webkit-mask: linear-gradient(#000 0 0) top/100% calc(100% - 6px) no-repeat, radial-gradient(circle 4px at 6px 100%, transparent 98%, #000) bottom/12px 6px repeat-x;
          mask: linear-gradient(#000 0 0) top/100% calc(100% - 6px) no-repeat, radial-gradient(circle 4px at 6px 100%, transparent 98%, #000) bottom/12px 6px repeat-x;
}
.receipt-paper b { font-weight: 700; }
.r-row { display: flex; justify-content: space-between; width: 100%; }
.r-row i { font-style: normal; }
.pos.printed .receipt-paper { transform: translateY(0); }
.pos.tearing .receipt-paper { transform: translateY(-40px); opacity: 0; transition: transform .5s ease-in, opacity .5s; }

/* ───── telefon ───── */
.phone-wrap { position: absolute; left: 0; top: 0; width: 250px; height: 520px; z-index: 20; touch-action: none; cursor: grab; will-change: transform; }
.phone-wrap.dragging { cursor: grabbing; }
.phone-tilt { width: 100%; height: 100%; transition: transform .45s cubic-bezier(.3,1.4,.5,1); perspective: 1400px; }
.phone-wrap.dragging .phone-tilt { transition: transform .08s linear; }
.phone { width: 100%; height: 100%; position: relative; transition: filter .3s; filter: drop-shadow(0 22px 26px rgba(0,0,0,.28)); }
.phone-wrap.dragging .phone { filter: drop-shadow(0 34px 34px rgba(0,0,0,.3)); }
.phone-inner { position: absolute; inset: 0; transform-style: preserve-3d; transition: transform .7s cubic-bezier(.45,.05,.2,1); }
.phone-inner.flipped { transform: rotateY(180deg); }
.face { position: absolute; inset: 0; border-radius: 42px; backface-visibility: hidden; -webkit-backface-visibility: hidden; overflow: hidden; }
.face.front { background: #0c0d0f; padding: 9px; box-shadow: inset 0 0 0 1.5px #3a3d43, inset 0 0 0 3px #111; }
.face.back {
  transform: rotateY(180deg);
  background: radial-gradient(140% 90% at 30% 10%, #4a4e57 0%, #2b2e34 45%, #1d1f23 100%);
  box-shadow: inset 0 0 0 1.5px #555a63, inset 0 0 0 3px #1a1b1e;
}
.cam-island { position: absolute; left: 18px; top: 18px; width: 92px; height: 92px; border-radius: 28px; background: linear-gradient(145deg, #3c4048, #24262b); box-shadow: inset 0 0 0 1px rgba(255,255,255,.08), 0 4px 10px rgba(0,0,0,.4); }
.lens { position: absolute; width: 32px; height: 32px; border-radius: 50%; background: radial-gradient(circle at 40% 35%, #3b4b6a 0, #0d1220 40%, #05070b 70%); box-shadow: 0 0 0 4px #15171b, 0 0 0 5px #3a3e46; }
.l1 { left: 10px; top: 10px; } .l2 { left: 10px; top: 50px; } .l3 { left: 50px; top: 30px; }
.flash { position: absolute; right: 12px; bottom: 12px; width: 10px; height: 10px; border-radius: 50%; background: #e9e0c8; opacity: .8; }
.nfc-mark { position: absolute; left: 50%; top: 42%; width: 110px; height: 110px; margin: -55px 0 0 -55px; border-radius: 50%; display: grid; place-items: center; align-content: center; gap: 4px; color: rgba(255,255,255,.28); box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.12); transition: color .3s, box-shadow .3s; }
.nfc-mark svg { width: 34px; height: 34px; }
.nfc-mark span { font-size: 11px; font-weight: 600; letter-spacing: .12em; }
.phone-wrap.near-pos .nfc-mark { color: rgba(120,190,255,.9); box-shadow: inset 0 0 0 1.5px rgba(120,190,255,.6), 0 0 30px rgba(64,156,255,.35); }

.flip-btn {
  position: absolute; left: -72px; top: 50%; transform: translateY(-50%);
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  width: 56px; height: 64px; padding: 0;
  border: 0; border-radius: 20px; cursor: pointer;
  background: var(--label); color: var(--bg);
  font: 600 12px "Instrument Sans", system-ui, sans-serif;
  box-shadow: 0 6px 16px rgba(0,0,0,.18);
  transition: transform .15s;
}
.flip-btn svg { width: 22px; height: 22px; }
.flip-btn:active { transform: translateY(-50%) scale(.95); }
/* Dar ekran: Çevir düğmesi telefonun üstünde, yatay bir hap */
.stage.narrow .flip-btn {
  left: 50%; top: -50px; transform: translateX(-50%);
  flex-direction: row; gap: 6px; width: auto; height: 42px; padding: 0 18px 0 14px; border-radius: 21px;
  font-size: 14px;
}
.stage.narrow .flip-btn svg { width: 18px; height: 18px; }
.stage.narrow .flip-btn:active { transform: translateX(-50%) scale(.95); }

/* ekran: uygulama arayüzü (açık tema) */
.screen {
  position: relative; width: 100%; height: 100%; border-radius: 34px; overflow: hidden;
  background: #F3F4F6; color: #17191C; font-size: 12px; isolation: isolate;
}
/* Durum çubuğu (saat, dinamik ada) her katmanın üstünde: Ödendi ekranı da onu örtmez */
.statusbar { position: relative; z-index: 50; height: 30px; display: flex; align-items: center; justify-content: space-between; padding: 0 22px 0 24px; font-weight: 600; font-size: 11px; }
.island { position: absolute; left: 50%; top: 8px; width: 64px; height: 18px; margin-left: -32px; border-radius: 10px; background: #0c0d0f; }
.sb-icons { display: flex; gap: 5px; align-items: center; }
.sig { width: 14px; height: 8px; background: linear-gradient(90deg, #17191C 0 2px, transparent 2px 4px, #17191C 4px 6px, transparent 6px 8px, #17191C 8px 10px, transparent 10px 12px, #17191C 12px 14px); clip-path: polygon(0 100%, 100% 0, 100% 100%); }
.bat { width: 20px; height: 9px; border-radius: 3px; box-shadow: inset 0 0 0 1px #17191C; position: relative; }
.bat::after { content: ""; position: absolute; inset: 2px 5px 2px 2px; background: #17191C; border-radius: 1px; }

.app-header { position: relative; height: 46px; display: flex; align-items: center; justify-content: space-between; padding: 0 12px 0 16px; }
.app-header h3 { font-size: 25px; font-weight: 700; letter-spacing: -0.03em; transition: opacity .25s; }
.hdr-btns { display: flex; gap: 8px; transition: opacity .25s; }
.round-btn { width: 30px; height: 30px; border-radius: 50%; background: #E8E9ED; display: grid; place-items: center; font-size: 16px; font-weight: 500; line-height: 1; }
.done-btn { position: absolute; right: 14px; top: 10px; border: 0; background: none; color: #007AFF; font: 600 15px "Instrument Sans", system-ui, sans-serif; cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .25s; padding: 4px; }
.screen.has-selection .done-btn { opacity: 1; pointer-events: auto; }
.screen.has-selection .hdr-btns, .screen.has-selection .app-header h3 { opacity: 0; }

.stack { position: absolute; left: 0; right: 0; top: 0; bottom: 0; pointer-events: none; }
.card {
  position: absolute; left: 8px; top: 0; width: 214px; height: 135px; border-radius: 12px;
  background: var(--card); color: var(--ink, #fff);
  box-shadow: 0 0 0 0.75px rgba(255,255,255,.14) inset, 0 -1px 6px rgba(0,0,0,.08), 0 6px 14px rgba(0,0,0,.08);
  transition: transform .55s cubic-bezier(.3,1.18,.45,1);
  cursor: pointer; pointer-events: auto; border: 0; padding: 0; text-align: left; font: inherit;
  transform-origin: 50% 0;
}
.card.dark-ink { --ink: #17181C; box-shadow: 0 0 0 0.75px rgba(0,0,0,.09) inset, 0 -1px 6px rgba(0,0,0,.06), 0 6px 14px rgba(0,0,0,.08); }
.card:active .card-face { transform: scale(.985); }
.card-face { position: absolute; inset: 0; transition: transform .12s; }
.card-top { position: absolute; left: 11px; right: 11px; top: 10px; display: flex; align-items: center; gap: 9px; }
.c-ico { width: 27px; height: 27px; border-radius: 7px; display: grid; place-items: center; flex: none; background: #63656B; color: #fff; font-weight: 600; font-size: 13px; }
.c-ico svg { width: 17px; height: 17px; }
.c-ico.soft { background: rgba(255,255,255,.18); }
.dark-ink .c-ico.soft { background: rgba(0,0,0,.08); color: #17181C; }
.c-titles { display: grid; min-width: 0; flex: 1; }
.c-title { font-weight: 600; font-size: 13.5px; line-height: 1.15; letter-spacing: -0.02em; }
.c-sub { font-size: 10.5px; line-height: 1.25; opacity: .74; font-weight: 500; }
.c-right { font-weight: 600; font-size: 13px; letter-spacing: -0.02em; }
.c-cl { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; opacity: .5; transition: opacity .3s, background .3s; }
.c-cl svg { width: 14px; height: 14px; }
.card.is-ready .c-cl { opacity: 1; background: rgba(255,255,255,.22); }
.card-bottom { position: absolute; left: 11px; right: 11px; bottom: 10px; display: flex; align-items: flex-end; justify-content: space-between; }
.c-meta { display: grid; gap: 1px; }
.c-meta small { font-size: 8.5px; opacity: .74; font-weight: 500; letter-spacing: .02em; }
.c-num { font-size: 12.5px; font-weight: 500; letter-spacing: .06em; }
.c-net { height: 18px; display: block; }
.c-net.visa { height: 13px; }
.c-net.white { filter: brightness(0) invert(1); }
.c-net.troy { height: 16px; }

.detail {
  position: absolute; left: 8px; right: 8px; top: 228px; opacity: 0; transform: translateY(14px);
  transition: opacity .25s, transform .35s cubic-bezier(.3,1.2,.45,1); pointer-events: none;
}
.screen.has-selection .detail { opacity: 1; transform: none; transition-delay: .12s; pointer-events: auto; }
.d-panel { background: #fff; border-radius: 14px; padding: 12px; }
.d-center { text-align: center; }
.d-head { font-size: 14px; font-weight: 600; letter-spacing: -0.02em; margin-top: 2px; }
.d-foot { font-size: 10.5px; color: #686B73; line-height: 1.35; margin-top: 3px; }
.d-big-cl { width: 34px; height: 34px; margin: 2px auto 0; display: grid; place-items: center; border-radius: 50%; background: #007AFF; color: #fff; }
.d-big-cl svg { width: 20px; height: 20px; }
.d-row { display: flex; align-items: center; gap: 9px; margin-top: 8px; background: #fff; border-radius: 12px; padding: 9px 11px; font-size: 11.5px; }
.d-row .c-ico { width: 24px; height: 24px; }
.d-row span { display: grid; line-height: 1.25; }
.d-row small { color: #686B73; font-size: 10px; }
.barcode { display: block; width: 100%; height: 72px; }
.barcode-num { text-align: center; font-size: 11px; letter-spacing: .08em; margin-top: 3px; color: #2a2c31; }
.d-caption { text-align: center; font-size: 10px; color: #686B73; margin-top: 7px; }
.d-pills { display: flex; justify-content: space-between; margin-top: 8px; background: #fff; border-radius: 12px; padding: 9px 11px; font-size: 11px; }
.d-pills b { font-weight: 500; color: #686B73; }

.readybar {
  position: absolute; left: 8px; right: 8px; bottom: 12px; height: 44px; border-radius: 14px; background: #fff;
  display: flex; align-items: center; gap: 9px; padding: 0 10px;
  transition: opacity .25s, transform .3s; box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.screen.has-selection .readybar { opacity: 0; transform: translateY(20px); pointer-events: none; }
.rb-ico { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: #007AFF; color: #fff; flex: none; }
.rb-ico svg { width: 15px; height: 15px; }
.rb-text { display: grid; line-height: 1.2; flex: 1; min-width: 0; }
.rb-text b { font-size: 12px; font-weight: 600; }
.rb-text small { font-size: 10.5px; color: #686B73; }
.readybar.pulse .rb-ico { animation: ring 1s ease-out 3; }
@keyframes ring { from { box-shadow: 0 0 0 0 rgba(0,122,255,.45); } to { box-shadow: 0 0 0 10px rgba(0,122,255,0); } }

.toast {
  position: absolute; left: 50%; top: 34px; z-index: 40; transform: translate(-50%, -12px); opacity: 0;
  background: rgba(23,25,28,.92); color: #fff; font-size: 10.5px; font-weight: 500; line-height: 1.3;
  padding: 7px 12px; border-radius: 12px; width: max-content; max-width: 200px; text-align: center;
  transition: opacity .2s, transform .3s cubic-bezier(.3,1.3,.5,1); pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.paid {
  position: absolute; inset: 0; z-index: 30; background: #F3F4F6;
  display: flex; flex-direction: column; align-items: center; padding: 96px 18px 18px; text-align: center;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.paid.show { opacity: 1; pointer-events: auto; }
.paid-ring { width: 104px; height: 104px; }
.paid-ring circle { fill: none; stroke: #2E9E5B; stroke-width: 6; stroke-linecap: round; stroke-dasharray: 327; stroke-dashoffset: 327; transform: rotate(-90deg); transform-origin: 50% 50%; }
.paid-ring path { fill: none; stroke: #2E9E5B; stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 70; stroke-dashoffset: 70; }
.paid.show .paid-ring circle { animation: draw .6s .05s cubic-bezier(.6,0,.3,1) forwards; }
.paid.show .paid-ring path { animation: draw .32s .55s ease-out forwards; }
.paid-label { margin-top: 18px; color: #686B73; font-size: 14px; font-weight: 600; }
.paid-amount { font-size: 34px; font-weight: 700; letter-spacing: -0.04em; margin-top: 2px; opacity: 0; transform: translateY(8px); transition: opacity .3s .7s, transform .4s .7s cubic-bezier(.3,1.3,.5,1); }
.paid.show .paid-amount { opacity: 1; transform: none; }
.paid-card { display: flex; align-items: center; gap: 7px; margin-top: 12px; font-size: 11.5px; font-weight: 500; white-space: pre; }
.paid-card .chip { width: 22px; height: 14px; border-radius: 3px; background: var(--card, #2D8F66); }
.paid-note { margin-top: 14px; font-size: 10px; color: #686B73; line-height: 1.4; max-width: 180px; }
.paid-btn { margin-top: auto; width: 100%; height: 40px; border: 0; border-radius: 20px; background: #007AFF; color: #fff; font: 600 14px "Instrument Sans", system-ui, sans-serif; cursor: pointer; }

.scanline { position: absolute; left: 22px; right: 22px; top: 242px; height: 2px; background: #ff3b3b; box-shadow: 0 0 10px 2px rgba(255,59,59,.6); opacity: 0; pointer-events: none; z-index: 35; }
.screen.scanning .scanline { animation: scanpass .55s ease-in-out 2 alternate; }
@keyframes scanpass { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 1; transform: translateY(70px); } }

/* ───── özellikler ───── */
.features { padding-top: 88px; }
.features h2, .honest h2, .install h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 24px; }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.feat { background: var(--surface); border-radius: 20px; padding: 20px; box-shadow: var(--shadow); }
.feat h3 { font-size: 17px; margin-top: 14px; }
.feat p { margin: 6px 0 0; color: var(--secondary); font-size: 15px; line-height: 1.45; }
.feat-ico { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: var(--c); color: #fff; }
.feat-ico svg { width: 22px; height: 22px; }

.honest { padding-top: 80px; }
.honest-list { list-style: none; margin: 0; padding: 0; background: var(--surface); border-radius: 20px; box-shadow: var(--shadow); }
.honest-list li { padding: 16px 20px; color: var(--secondary); font-size: 16px; }
.honest-list li + li { border-top: 1px solid var(--separator); }
.honest-list b { color: var(--label); font-weight: 600; }

.install { padding-top: 80px; padding-bottom: 80px; }
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 760px) { .install-grid { grid-template-columns: 1fr; } }
.panel { background: var(--surface); border-radius: 20px; padding: 22px; box-shadow: var(--shadow); min-width: 0; }
.panel h3 { font-size: 18px; }
.panel p { color: var(--secondary); font-size: 15px; margin: 8px 0 0; }
pre { margin: 12px 0 0; background: var(--surface-alt); border-radius: 12px; padding: 14px 16px; overflow-x: auto; }
code { font: 14px/1.5 ui-monospace, "Cascadia Mono", Consolas, monospace; }
p code { background: var(--surface-alt); padding: 1px 6px; border-radius: 6px; font-size: 13.5px; }

.foot { border-top: 1px solid var(--separator); padding: 28px 0 40px; font-size: 14px; color: var(--secondary); }
.foot p { margin: 0 0 6px; }
.fine { font-size: 12.5px; max-width: 720px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ───── sayfalar arası geçiş ───── */
@view-transition { navigation: auto; }
.nav { view-transition-name: site-nav; }
::view-transition-old(site-nav), ::view-transition-new(site-nav) { animation: none; }
::view-transition-old(root) { animation: vt-out .22s cubic-bezier(.4, 0, 1, 1) both; }
::view-transition-new(root) { animation: vt-in .42s cubic-bezier(0, 0, .2, 1) both; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-6px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(14px); } }
/* View Transitions desteklemeyen tarayıcılarda sayfa girişinde yumuşak belirme */
@supports not (view-transition-name: x) {
  .page { animation: vt-in .42s cubic-bezier(0, 0, .2, 1) both; }
}
.nav-links a[aria-current="page"] { color: var(--label); font-weight: 600; }
.page > section:first-child { padding-top: 56px; }
.picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding-top: 24px; padding-bottom: 80px; }
@media (max-width: 860px) { .picks { grid-template-columns: 1fr; } }
.pick {
  display: block; background: var(--surface); border-radius: 20px; padding: 24px; box-shadow: var(--shadow);
  color: var(--label); transition: transform .25s cubic-bezier(.3, 1.2, .5, 1);
}
.pick:hover { text-decoration: none; transform: translateY(-3px); }
.pick:active { transform: scale(.985); }
.pick-k { font-size: 13px; font-weight: 600; color: var(--accent); }
.pick h2 { font-size: 22px; margin: 8px 0 6px; }
.pick p { margin: 0; color: var(--secondary); font-size: 15px; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .01ms !important; }