/* İstanbul Jant — tasarım değişkenleri */
:root {
  --bg: #0E1012;          /* atölye zemini */
  --panel: #16191C;       /* kart */
  --panel-2: #1D2126;     /* yükseltilmiş yüzey */
  --line: #2A2F36;
  --text: #EEF0F2;
  --muted: #9BA4AD;
  --chalk: #F2B90F;       /* lastikçi tebeşiri / kaliper sarısı */
  --paper: #F1F2F3;       /* açık bölüm */
  --ink: #15181B;
  --display: "Big Shoulders Display", "Arial Narrow", "Haettenschweiler", sans-serif;
  --body: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --pad: clamp(1.25rem, 5vw, 5.5rem);
  --max: 82rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 1.0625rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, p, dl, dd, ol, ul { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
svg { display: block; }
:focus-visible { outline: 3px solid var(--chalk); outline-offset: 3px; border-radius: 4px; }

h1, h2 {
  font-family: var(--display); font-weight: 900; text-transform: uppercase;
  line-height: .92; letter-spacing: .005em; text-wrap: balance;
}
h1 { font-size: clamp(2.9rem, 6.6vw, 6.75rem); overflow-wrap: anywhere; }
h2 { font-size: clamp(2.4rem, 5.4vw, 4.5rem); }
h3 { font: 700 1.1875rem/1.3 var(--body); }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 99; background: #fff; color: #000; padding: .5rem 1rem; }

/* Düğmeler */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  min-height: 3rem; padding: .7rem 1.35rem;
  font: 700 1rem/1.2 var(--body); text-decoration: none; white-space: nowrap;
  border: 2px solid transparent; border-radius: 999px; cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { min-height: 3.5rem; padding: .9rem 1.7rem; font-size: 1.0625rem; }
.btn .ico { width: 1.15rem; height: 1.15rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-primary { background: var(--chalk); color: var(--ink); box-shadow: 0 8px 28px -10px rgba(242,185,15,.7); }
.btn-primary:hover { background: #ffcd33; }
.btn-outline { border-color: #4a515a; color: var(--text); background: rgba(255,255,255,.03); }
.btn-outline:hover { border-color: var(--text); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-dark-outline { border-color: var(--ink); color: var(--ink); }
.btn-dark-outline:hover { background: var(--ink); color: #fff; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; }

/* Üst çubuk */
.site-head {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  display: flex; align-items: center; gap: 2rem;
  padding: 1rem var(--pad);
  transition: background-color .25s ease, padding .25s ease, border-color .25s ease;
  border-bottom: 1px solid transparent;
}
.site-head.scrolled { background: rgba(14,16,18,.88); backdrop-filter: blur(12px); padding-block: .65rem; border-bottom-color: var(--line); }
.brand { display: inline-flex; align-items: center; text-decoration: none; flex: none; }
.brand .logo { display: block; height: 3rem; width: auto; transition: height .25s ease; }
.site-head.scrolled .brand .logo { height: 2.6rem; }
.site-foot .brand .logo { height: 3.4rem; }
.site-head nav { display: flex; gap: 1.6rem; margin-left: auto; }
.site-head nav a { text-decoration: none; font-weight: 500; font-size: .96rem; color: #d5dade; position: relative; padding: .35rem 0; }
.site-head nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--chalk); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.site-head nav a:hover { color: #fff; }
.site-head nav a:hover::after { transform: scaleX(1); }
.head-call { min-height: 2.7rem; padding: .5rem 1.15rem; }
.menu-btn { display: none; width: 2.9rem; height: 2.9rem; border-radius: 50%; border: 1px solid #4a515a; background: rgba(255,255,255,.04); cursor: pointer; padding: 0; place-items: center; align-content: center; gap: 5px; }
.menu-btn span { display: block; width: 1.2rem; height: 2px; background: #fff; transition: transform .2s ease, opacity .2s ease; }
.menu-btn[aria-expanded=true] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded=true] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded=true] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Giriş */
.hero {
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); align-items: center; gap: 1rem;
  min-height: min(58rem, 100svh);
  padding: 6.5rem 0 3.5rem var(--pad);
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,.018) 0 2px, transparent 2px 22px),
    radial-gradient(ellipse 70% 80% at 85% 40%, #262b31 0%, transparent 65%),
    linear-gradient(180deg, #121417 0%, #0E1012 100%);
  overflow: hidden;
}
.hero-tag { display: inline-flex; align-items: center; gap: .6rem; font-weight: 500; font-size: .95rem; color: #d5dade; padding: .45rem .95rem; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.03); margin-bottom: 1.6rem; }
.hero-tag .dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--chalk); box-shadow: 0 0 0 4px rgba(242,185,15,.2); }
.hero h1 { background: linear-gradient(180deg, #fff 30%, #b9c0c7 100%); -webkit-background-clip: text; background-clip: text; color: transparent; padding-bottom: .06em; }
.hero .lead { margin: 1.6rem 0 2.1rem; font-size: clamp(1.1rem, 1.5vw, 1.3rem); color: #c5cbd1; max-width: 44ch; }
.hero-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2.2rem; }
.hero-chips li { font-size: .875rem; font-weight: 500; color: var(--muted); padding: .35rem .8rem; border: 1px solid var(--line); border-radius: 999px; }

.hero-stage { position: relative; align-self: stretch; min-height: 32rem; display: flex; flex-direction: column; justify-content: center; }
.stage-glow { position: absolute; inset: 8% 4% 22% 4%; z-index: -1; background: radial-gradient(closest-side, rgba(242,185,15,.13), transparent 70%); filter: blur(10px); }
#wheel { flex: 1; width: 100%; min-height: 0; display: block; cursor: grab; touch-action: pan-y; opacity: 0; transition: opacity .7s ease; }
#wheel:active { cursor: grabbing; }
.stage-fallback { position: absolute; inset: 0 0 9rem 0; margin: auto; width: min(72%, 26rem); }
.hero-stage.is-3d #wheel { opacity: 1; }
.hero-stage.is-3d .stage-fallback { display: none; }
.hero-stage:not(.is-3d) .hud { visibility: hidden; }

.hud {
  display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; align-items: center;
  margin: 0 var(--pad) 0 auto; width: min(100% - var(--pad), 34rem);
  padding: 1rem 1.3rem; border-radius: 18px;
  background: rgba(22,25,28,.82); border: 1px solid var(--line); backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px -30px #000;
}
.hud-read { display: grid; gap: .1rem; padding-right: 1.4rem; border-right: 1px solid var(--line); }
.hud-label { font-size: .8125rem; color: var(--muted); }
.hud-value { font: 700 1rem/1 var(--body); color: var(--muted); white-space: nowrap; }
.hud-value b { font: 900 2.6rem/1 var(--display); color: #fff; font-variant-numeric: tabular-nums; }
.hud-badge { justify-self: start; margin-top: .3rem; font-size: .78rem; font-weight: 700; padding: .2rem .6rem; border-radius: 999px; background: rgba(86,201,128,.16); color: #6fdc98; white-space: nowrap; }
.hud-badge.bad { background: rgba(255,107,87,.16); color: #ff8a78; }
.hud-badge.mid { background: rgba(242,185,15,.16); color: var(--chalk); }
.hud-slider label { display: block; font-weight: 700; font-size: .95rem; }
.repair-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .7rem; font-size: .8125rem; color: var(--muted); }
.hud-slider p { font-size: .8125rem; color: var(--muted); min-height: 1.5em; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 2.25rem; background: transparent; cursor: ew-resize; }
input[type=range]::-webkit-slider-runnable-track { height: 6px; border-radius: 3px; background: linear-gradient(90deg, #ff6b57, var(--chalk) 55%, #56c980); }
input[type=range]::-moz-range-track { height: 6px; border-radius: 3px; background: linear-gradient(90deg, #ff6b57, var(--chalk) 55%, #56c980); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 1.6rem; height: 1.6rem; margin-top: -.6rem; border-radius: 50%; background: #fff; border: 4px solid var(--ink); box-shadow: 0 0 0 2px #fff, 0 4px 12px rgba(0,0,0,.5); }
input[type=range]::-moz-range-thumb { width: 1.1rem; height: 1.1rem; border-radius: 50%; background: #fff; border: 4px solid var(--ink); box-shadow: 0 0 0 2px #fff; }

.hazard { position: absolute; inset: auto 0 0 0; height: 8px; background: repeating-linear-gradient(-45deg, var(--chalk) 0 14px, #0b0c0d 14px 28px); }

/* Kayan şerit */
.marquee { overflow: hidden; background: #0a0b0c; border-bottom: 1px solid var(--line); padding: 1.1rem 0; }
.marquee-track { display: flex; align-items: center; gap: 2.2rem; width: max-content; animation: kay 38s linear infinite; }
.marquee span { font: 900 clamp(1.6rem, 3vw, 2.4rem)/1 var(--display); text-transform: uppercase; letter-spacing: .03em; color: transparent; -webkit-text-stroke: 1px #6a727b; white-space: nowrap; }
.marquee i { width: .7rem; height: .7rem; border-radius: 50%; background: var(--chalk); flex: none; }
@keyframes kay { to { transform: translateX(-50%); } }

/* Bölümler */
.band { padding: clamp(4rem, 9vw, 8rem) var(--pad); }
.band > * { max-width: var(--max); margin-inline: auto; }
.band-head { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 2rem; align-items: end; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.band-head h2 { max-width: 14ch; }
.band-head p { color: var(--muted); max-width: 40ch; justify-self: end; }

/* Hizmet kartları */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card {
  position: relative; padding: 1.6rem 1.5rem 1.8rem; border-radius: 18px;
  background: linear-gradient(160deg, var(--panel-2), var(--panel) 60%);
  border: 1px solid var(--line); overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card::after { content: ""; position: absolute; right: -4rem; bottom: -6rem; width: 12rem; height: 12rem; border-radius: 50%; border: 22px solid rgba(255,255,255,.025); transition: border-color .25s ease; }
.card:hover { transform: translateY(-6px); border-color: rgba(242,185,15,.55); box-shadow: 0 26px 50px -30px rgba(242,185,15,.45); }
.card:hover::after { border-color: rgba(242,185,15,.09); }
.card-ico { width: 3.4rem; height: 3.4rem; display: grid; place-items: center; border-radius: 14px; background: rgba(242,185,15,.1); border: 1px solid rgba(242,185,15,.28); margin-bottom: 1.4rem; }
.card-ico svg, .why-list svg, .info-card svg { width: 1.7rem; height: 1.7rem; fill: none; stroke: var(--chalk); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card-kind { position: absolute; top: 1.5rem; right: 1.4rem; font-size: .78rem; font-weight: 700; color: var(--muted); padding: .2rem .65rem; border: 1px solid var(--line); border-radius: 999px; }
.card h3 { font-size: 1.25rem; margin-bottom: .5rem; }
.card p { color: var(--muted); font-size: .975rem; }

/* Öncesi / sonrası karşılaştırma */
.works { background: #0a0b0c; border-top: 1px solid var(--line); }
.ba-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.ba-item figcaption { margin-top: .9rem; }
.ba-item figcaption b { display: block; font-size: 1.125rem; }
.ba-item figcaption span { color: var(--muted); font-size: .95rem; }
figure { margin: 0; }
.ba {
  --p: 50%;
  position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 18px;
  border: 1px solid var(--line); background: var(--panel);
  cursor: ew-resize; touch-action: pan-y; user-select: none; -webkit-user-select: none;
}
.ba-layer { position: absolute; inset: 0; }
.ba-layer img, .ba-layer svg { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; -webkit-user-drag: none; }
.ba-before { clip-path: inset(0 calc(100% - var(--p)) 0 0); }
.ba-tag { position: absolute; top: .8rem; z-index: 2; font-size: .8125rem; font-weight: 700; padding: .25rem .7rem; border-radius: 999px; background: rgba(14,16,18,.78); color: #fff; backdrop-filter: blur(6px); pointer-events: none; }
.ba-tag.once { left: .8rem; }
.ba-tag.sonra { right: .8rem; background: var(--chalk); color: var(--ink); }
.ba-sample { position: absolute; left: .8rem; bottom: .8rem; z-index: 2; font-size: .75rem; font-weight: 500; padding: .2rem .65rem; border-radius: 999px; background: rgba(14,16,18,.78); color: var(--muted); white-space: nowrap; pointer-events: none; }
.ba-handle { position: absolute; top: 0; bottom: 0; left: var(--p); width: 3px; margin-left: -1.5px; background: #fff; z-index: 3; pointer-events: none; box-shadow: 0 0 0 1px rgba(0,0,0,.25); }
.ba-handle::after {
  content: ""; position: absolute; top: 50%; left: 50%; width: 2.9rem; height: 2.9rem; margin: -1.45rem 0 0 -1.45rem; border-radius: 50%;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2315181B' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 6l-5 6 5 6M15 6l5 6-5 6'/%3E%3C/svg%3E") center / 1.5rem no-repeat;
  box-shadow: 0 6px 20px rgba(0,0,0,.55);
}
.ba:focus-visible { outline-offset: 4px; }

/* Neden biz (açık bölüm) */
.why { background: var(--paper); color: var(--ink); display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.why > * { max-width: none; margin: 0; }
.why-lead p { margin: 1.4rem 0 2rem; color: #474e56; font-size: 1.125rem; max-width: 42ch; }
.why-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.why-list li { display: grid; gap: 1rem; align-content: start; padding: 1.5rem; background: #fff; border-radius: 18px; border: 1px solid #dfe2e5; box-shadow: 0 18px 40px -32px rgba(0,0,0,.5); }
.why-list svg { width: 2.9rem; height: 2.9rem; padding: .6rem; border-radius: 12px; background: var(--ink); }
.why-list p { color: #5a626a; font-size: .975rem; margin-top: .3rem; }

/* Lastik ölçüsü */
.sizer { background: radial-gradient(ellipse 60% 70% at 15% 60%, #1b1f24 0%, transparent 70%), var(--bg); }
.sizer-tool { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); border-radius: 24px; border: 1px solid var(--line); background: var(--panel); overflow: hidden; }
.sizer-diagram { display: grid; place-items: center; align-content: center; gap: 1rem; padding: 2rem; background: repeating-linear-gradient(115deg, rgba(255,255,255,.02) 0 2px, transparent 2px 18px), #111316; border-right: 1px solid var(--line); }
.sizer-diagram svg { width: min(100%, 21rem); }
#dg-rim { transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.dg-cap { font-size: .8125rem; color: var(--muted); }
.sizer-panel { padding: clamp(1.5rem, 4vw, 3rem); }
.sidewall { font: 900 clamp(3.2rem, 8vw, 6rem)/.95 var(--display); color: transparent; -webkit-text-stroke: 1.5px #7b838c; white-space: nowrap; letter-spacing: .01em; }
.sidewall span { color: var(--chalk); -webkit-text-stroke: 0; }
.sizer-fields { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; margin-top: 1.6rem; }
.sizer-fields label { font-size: .8125rem; color: var(--muted); display: grid; gap: .4rem; }
select { font: 700 1.0625rem var(--body); color: #fff; background: var(--panel-2); border: 1px solid #3a4048; border-radius: 12px; padding: .7rem .8rem; min-height: 3.1rem; width: 100%; }
select:hover { border-color: var(--chalk); }
.sizer-out { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem 2rem; margin: 1.8rem 0 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.sizer-out dt { font-size: .8125rem; color: var(--muted); }
.sizer-out dd { font: 900 2rem/1.1 var(--display); margin-top: .15rem; }

/* Süreç */
.process { background: #0a0b0c; border-block: 1px solid var(--line); }
.process ol { counter-reset: adim; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1.5rem; position: relative; }
.process ol::before { content: ""; position: absolute; top: 1.7rem; left: 1.7rem; right: 10%; height: 2px; background: repeating-linear-gradient(90deg, #3a4048 0 8px, transparent 8px 16px); }
.process li { counter-increment: adim; position: relative; }
.process li::before { content: counter(adim); display: grid; place-items: center; width: 3.4rem; height: 3.4rem; border-radius: 50%; font: 900 1.6rem/1 var(--display); background: var(--chalk); color: var(--ink); margin-bottom: 1.3rem; box-shadow: 0 0 0 8px #0a0b0c; position: relative; }
.process li p { color: var(--muted); margin-top: .45rem; font-size: .975rem; }

/* Sorular */
.faq details { border: 1px solid var(--line); border-radius: 16px; background: var(--panel); margin-bottom: .75rem; transition: border-color .2s ease; }
.faq details[open] { border-color: rgba(242,185,15,.5); }
.faq summary { cursor: pointer; padding: 1.2rem 3.6rem 1.2rem 1.4rem; font-weight: 700; font-size: 1.125rem; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 1.1rem; top: 50%; width: 2rem; height: 2rem; margin-top: -1rem; display: grid; place-items: center; border-radius: 50%; background: var(--panel-2); font: 700 1.3rem/1 var(--body); color: var(--chalk); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 1.4rem 1.4rem; color: var(--muted); max-width: 62ch; }

/* İletişim */
.contact { padding: 0 var(--pad) clamp(3rem, 7vw, 6rem); }
.contact-cta {
  max-width: var(--max); margin-inline: auto; position: relative; overflow: hidden;
  background: var(--chalk); color: var(--ink); border-radius: 28px;
  padding: clamp(2.2rem, 6vw, 5rem);
}
.contact-cta::after { content: ""; position: absolute; right: -7rem; top: 50%; width: 26rem; height: 26rem; margin-top: -13rem; border-radius: 50%; border: 3.4rem solid rgba(21,24,27,.1); box-shadow: inset 0 0 0 2.2rem rgba(21,24,27,.06); pointer-events: none; }
.contact-cta h2 { max-width: 12ch; position: relative; z-index: 1; }
.contact-cta p { font-size: 1.2rem; margin: 1rem 0 2rem; font-weight: 500; position: relative; z-index: 1; }
.contact-cta .actions { position: relative; z-index: 1; }
.contact-info { max-width: var(--max); margin: 1rem auto 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.info-card { padding: 1.6rem; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); }
.info-card svg { margin-bottom: 1rem; }
.info-card h3 { font-size: .875rem; font-weight: 500; color: var(--muted); }
.info-card p { font-size: 1.125rem; font-weight: 500; margin-top: .25rem; white-space: pre-line; }
.info-card a { color: var(--chalk); font-weight: 700; text-underline-offset: .25em; }
.info-card > a { display: inline-block; margin-top: .7rem; }

.site-foot { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem 2rem; flex-wrap: wrap; padding: 2rem var(--pad); border-top: 1px solid var(--line); color: var(--muted); font-size: .9375rem; }
.site-foot nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.site-foot nav a { text-decoration: none; }
.site-foot nav a:hover { color: #fff; }

/* Sabit WhatsApp düğmesi */
.wa-float { position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 35; display: inline-flex; align-items: center; gap: .6rem; padding: .85rem 1.2rem; border-radius: 999px; background: #1faa59; color: #fff; font-weight: 700; text-decoration: none; box-shadow: 0 14px 34px -12px rgba(31,170,89,.8); transition: transform .15s ease; }
.wa-float:hover { transform: translateY(-3px); }
.wa-float svg { width: 1.4rem; height: 1.4rem; fill: none; stroke: #fff; stroke-width: 2; stroke-linejoin: round; }
.mobile-bar { display: none; }

/* Yönetim (demo) */
body.admin-acik { overflow: hidden; }
.admin { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 1rem; background: rgba(5,6,7,.78); backdrop-filter: blur(6px); overflow-y: auto; }
.admin[hidden], .admin [hidden] { display: none; }
.admin-box { width: min(100%, 36rem); max-height: calc(100svh - 2rem); overflow-y: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: clamp(1.2rem, 4vw, 2rem); }
.admin-head { display: flex; align-items: center; justify-content: space-between; }
.admin-head h2 { font-size: 2.2rem; }
.admin-close { width: 2.75rem; height: 2.75rem; border-radius: 50%; border: 1px solid var(--line); background: var(--panel-2); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer; }
.admin-note { margin: .6rem 0 1.4rem; padding: .7rem .9rem; border-radius: 12px; background: rgba(242,185,15,.1); border: 1px solid rgba(242,185,15,.28); color: #f4d67a; font-size: .9rem; }
.admin label { display: block; font-size: .875rem; color: var(--muted); margin: 1rem 0 .4rem; }
.admin input[type=text], .admin input[type=password] { width: 100%; min-height: 3.1rem; padding: .7rem .9rem; font: 500 1.0625rem var(--body); color: #fff; background: var(--panel-2); border: 1px solid #3a4048; border-radius: 12px; }
.admin input::placeholder { color: #6f7780; }
.admin h3 { margin-top: 1.6rem; font-size: 1.2rem; }
.admin form > h3:first-child { margin-top: 0; }
.admin .hint { font-size: .85rem; color: var(--muted); margin-top: .5rem; }
.admin .err { color: #ff8a78; font-size: .9rem; min-height: 1.4em; margin: .6rem 0; }
.admin form .btn { width: 100%; }
.admin-photos { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-top: 1.2rem; }
.admin .drop { position: relative; display: grid; place-items: center; text-align: center; aspect-ratio: 4 / 3; margin: 0; padding: .8rem; border: 2px dashed #4a515a; border-radius: 14px; background: var(--panel-2); color: #d5dade; font-weight: 700; font-size: .95rem; cursor: pointer; overflow: hidden; }
.admin .drop:hover, .admin .drop:focus-within { border-color: var(--chalk); }
.admin .drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.admin .drop img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: none; }
.admin .drop em { position: absolute; left: .5rem; top: .5rem; font-style: normal; font-size: .75rem; padding: .15rem .55rem; border-radius: 999px; background: rgba(14,16,18,.8); color: #fff; display: none; }
.admin .drop.dolu { border-style: solid; border-color: var(--chalk); }
.admin .drop.dolu img, .admin .drop.dolu em { display: block; }
#admin-list { display: grid; gap: .6rem; margin-top: .8rem; }
#admin-list li { display: grid; grid-template-columns: 3.6rem 3.6rem 1fr auto; gap: .7rem; align-items: center; padding: .6rem; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-2); }
#admin-list li.bos { display: block; color: var(--muted); font-size: .95rem; padding: 1rem; }
#admin-list img { width: 3.6rem; height: 3.6rem; object-fit: cover; border-radius: 9px; }
#admin-list b { display: block; }
#admin-list span { color: var(--muted); font-size: .875rem; }
#admin-list .sil { min-height: 2.75rem; padding: .4rem .9rem; border-radius: 999px; border: 1px solid #5a3a36; background: transparent; color: #ff8a78; font: 700 .9rem var(--body); cursor: pointer; }
#admin-list .sil.onay { background: #ff6b57; border-color: #ff6b57; color: #15181b; }
#admin-list .sil:disabled { opacity: .6; cursor: default; }
.admin .btn:disabled { opacity: .6; cursor: default; }
#admin-cikis { width: 100%; margin-top: 1.4rem; }
.toast { position: fixed; left: 50%; bottom: 5.5rem; z-index: 70; transform: translate(-50%, 1rem); padding: .8rem 1.3rem; border-radius: 999px; background: #fff; color: var(--ink); font-weight: 700; box-shadow: 0 14px 40px rgba(0,0,0,.5); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease; white-space: nowrap; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* Kaydırınca beliren öğeler (yalnızca JS çalışıyorsa gizlenir) */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.8,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
.js .cards .reveal:nth-child(4n+2), .js .why-list .reveal:nth-child(2n), .js .process .reveal:nth-child(2) { transition-delay: .08s; }
.js .cards .reveal:nth-child(4n+3), .js .process .reveal:nth-child(3) { transition-delay: .16s; }
.js .cards .reveal:nth-child(4n+4), .js .process .reveal:nth-child(4) { transition-delay: .24s; }
.js .process .reveal:nth-child(5) { transition-delay: .32s; }

@media (max-width: 68rem) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-head nav {
    position: fixed; inset: 0; z-index: -1; margin: 0; flex-direction: column; justify-content: center; gap: .4rem;
    padding: 5rem var(--pad) 2rem; background: rgba(10,11,12,.97);
    opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s;
  }
  .site-head nav.open { opacity: 1; visibility: visible; }
  .site-head nav a { font: 900 2.4rem/1.25 var(--display); text-transform: uppercase; color: #fff; }
  .menu-btn { display: grid; }
  .head-call { margin-left: auto; }
}
@media (max-width: 60rem) {
  .hero { grid-template-columns: 1fr; padding: 5.5rem var(--pad) 3rem; min-height: 0; gap: 2rem; }
  .hero-stage { order: -1; min-height: 0; margin-inline: calc(var(--pad) * -1); }
  #wheel { height: min(84vw, 26rem); flex: none; }
  .stage-fallback { inset: 0 0 11rem 0; width: 58%; }
  .hud { margin: .5rem var(--pad) 0; width: auto; }
  .band-head, .why, .sizer-tool { grid-template-columns: 1fr; }
  .ba-grid { grid-template-columns: 1fr; gap: 1.8rem; max-width: 34rem; }
  .band-head p { justify-self: start; }
  .sizer-diagram { border-right: 0; border-bottom: 1px solid var(--line); }
  .sizer-diagram svg { width: min(70%, 16rem); }
  .process ol { grid-template-columns: 1fr; gap: 0; }
  .process ol::before { top: 1.7rem; bottom: 3rem; left: 1.65rem; right: auto; width: 2px; height: auto; background: repeating-linear-gradient(180deg, #3a4048 0 8px, transparent 8px 16px); }
  .process li { display: grid; grid-template-columns: 3.4rem 1fr; column-gap: 1.2rem; padding-bottom: 1.8rem; }
  .process li::before { grid-row: span 2; margin: 0; }
  .process li h3 { align-self: end; }
  .contact-info { grid-template-columns: 1fr; }
  .contact-cta::after { opacity: .6; right: -14rem; }
  .wa-float span { display: none; }
  .wa-float { padding: .95rem; }
}
@media (max-width: 36rem) {
  .head-call { display: none; }
  .menu-btn { margin-left: auto; }
  .cards, .why-list { grid-template-columns: 1fr; }
  .card { display: grid; grid-template-columns: auto 1fr; column-gap: 1.1rem; padding: 1.3rem; }
  .card-ico { grid-row: span 2; margin: 0; }
  .card-kind { display: none; }
  .card h3 { align-self: end; margin: 0; font-size: 1.125rem; }
  .card p { grid-column: 2; }
  .why-list li { grid-template-columns: auto 1fr; padding: 1.2rem; }
  .hud { grid-template-columns: 1fr; gap: .8rem; }
  .hud-read { grid-template-columns: auto auto 1fr; align-items: baseline; gap: .7rem; padding: 0 0 .8rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .hud-badge { justify-self: end; margin: 0; }
  .sizer-fields { gap: .5rem; }
  select { padding-inline: .5rem; font-size: 1rem; }
  .sizer-out dd { font-size: 1.6rem; }
  .brand .logo { height: 2.6rem; }
  .actions .btn { flex: 1 1 100%; }
  .hero-chips { display: none; }
  .wa-float { display: none; }
  body { padding-bottom: 4.6rem; }
  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: .5rem;
    position: fixed; inset: auto 0 0 0; z-index: 38;
    padding: .6rem .75rem calc(.6rem + env(safe-area-inset-bottom));
    background: rgba(14,16,18,.94); backdrop-filter: blur(10px); border-top: 1px solid var(--line);
  }
  .site-foot { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}