/* Sinüs Enerji — "Faz" landing page */
:root {
  --navy-950: #07121f;
  --navy-900: #0b1a2b;
  --navy-800: #112840;
  --navy-700: #1a3a5c;
  --navy: #23486e;          /* logo laciverti */
  --orange: #f0920a;        /* logo turuncusu */
  --orange-soft: #ffb44a;
  --ink: #0e1b2a;
  --muted: #5a6b7d;
  --line: #dde4ec;
  --paper: #f6f7f9;
  --white: #fff;
  --radius: 18px;
  --f-display: "Space Grotesk", system-ui, sans-serif;
  --f-body: "Inter", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font: 400 16px/1.65 var(--f-body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.08; margin: 0; letter-spacing: -.02em; }
em { font-style: normal; color: var(--orange); }
p { margin: 0; }
svg path { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.wrap { width: min(1200px, 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--orange); color: #000; padding: 8px 14px; z-index: 100; border-radius: 6px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 24px; border-radius: 999px;
  background: var(--orange); color: var(--navy-950);
  font: 600 15px/1 var(--f-display); letter-spacing: .01em;
  border: 0; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  box-shadow: 0 10px 30px -10px rgba(240, 146, 10, .7);
}
.btn svg { width: 18px; height: 18px; transition: transform .25s var(--ease); }
.btn:hover { transform: translateY(-2px); background: var(--orange-soft); }
.btn:hover svg { transform: translateX(4px); }
.btn--sm { padding: 11px 18px; font-size: 14px; }
.btn--ghost { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.35); }
.btn--ghost:hover { background: rgba(255,255,255,.08); }
.btn--full { width: 100%; justify-content: center; }

/* ---------- Topbar + Nav ---------- */
.topbar { background: var(--navy-950); color: #9fb2c7; font-size: 13px; }
.topbar__in { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; }
.topbar span { display: inline-flex; align-items: center; gap: 8px; }
.topbar svg { width: 15px; height: 15px; color: var(--orange); }
.topbar__right { gap: 22px !important; }
.topbar a:hover { color: #fff; }

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 26, 43, .72);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background .3s, border-color .3s;
}
.nav__in { display: flex; align-items: center; gap: 28px; height: 78px; }
.brand { position: relative; width: 150px; flex-shrink: 0; }
.brand img { width: 100%; height: auto; transition: opacity .3s; }
.brand__light { position: absolute; inset: 0; opacity: 0; }
.menu { list-style: none; display: flex; gap: 4px; margin: 0 0 0 auto; padding: 0; position: relative; }
.menu a {
  display: block; padding: 10px 14px; border-radius: 999px;
  font: 500 15px/1 var(--f-display); color: #d5e0ec; transition: color .2s, background .2s;
}
.menu a { position: relative; z-index: 1; }
.menu a:hover, .menu a[aria-current] { color: #fff; }
/* Aktif bölümü takip eden kayan vurgu */
.menu__ind {
  position: absolute; z-index: 0; top: 0; left: 0; height: 100%; width: 0;
  border-radius: 999px; background: rgba(255,255,255,.1);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
  transition: transform .45s var(--ease), width .45s var(--ease), background .3s, opacity .3s;
  pointer-events: none; opacity: 0;
}
.menu__ind.is-ready { opacity: 1; }
.nav.is-light { background: rgba(255,255,255,.88); border-color: var(--line); }
.nav.is-light .brand__dark { opacity: 0; }
.nav.is-light .brand__light { opacity: 1; }
.nav.is-light .menu a { color: var(--navy); }
.nav.is-light .menu a:hover, .nav.is-light .menu a[aria-current] { color: var(--navy-900); }
.nav.is-light .menu__ind { background: rgba(35,72,110,.1); box-shadow: inset 0 0 0 1px rgba(35,72,110,.08); }
.burger { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  background:
    radial-gradient(1000px 600px at 85% 20%, rgba(35,72,110,.65), transparent 60%),
    radial-gradient(700px 500px at 10% 100%, rgba(240,146,10,.12), transparent 60%),
    var(--navy-900);
  color: #fff;
  padding: 72px 0 0;
  margin-top: -79px; padding-top: 151px;
}
.hero::before { /* PCB ızgara */
  content: ""; position: absolute; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%);
}
.hero__scope { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 13px/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase;
  color: #a9bdd2; padding: 9px 14px; border: 1px solid rgba(255,255,255,.14); border-radius: 999px;
  background: rgba(255,255,255,.03);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 0 rgba(240,146,10,.7); animation: ping 2s infinite; }
@keyframes ping { 70% { box-shadow: 0 0 0 10px rgba(240,146,10,0); } 100% { box-shadow: 0 0 0 0 rgba(240,146,10,0); } }

.hero h1 { font-size: clamp(42px, 6.2vw, 84px); font-weight: 600; margin: 26px 0 22px; }
.hero h1 em { position: relative; white-space: nowrap; }
.hero h1 em::after { /* el çizimi sinüs alt çizgi */
  content: ""; position: absolute; left: 0; right: 0; bottom: -.12em; height: .22em;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 10'%3E%3Cpath d='M0 5 C5 0 10 0 20 5 S35 10 40 5' fill='none' stroke='%23f0920a' stroke-width='2'/%3E%3C/svg%3E") repeat-x 0 0 / .9em 100%;
  animation: slide 2.4s linear infinite;
}
@keyframes slide { to { background-position: .9em 0; } }
.hero__sub {
  display: block; margin-top: 20px;
  font: 500 clamp(15px, 1.6vw, 19px)/1.4 var(--f-mono); letter-spacing: 0;
  color: var(--orange-soft); max-width: 34ch;
}
.lead { font-size: 18px; color: #b9c8d8; max-width: 52ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

/* Osiloskop monitör */
.monitor {
  margin: 0; position: relative;
  background: linear-gradient(160deg, #1b3350, #0c1c2e);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px; padding: 12px;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.08);
  transform: perspective(1400px) rotateY(-8deg) rotateX(3deg);
  transition: transform .8s var(--ease);
}
.monitor:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
.monitor__bar, .monitor__foot {
  display: flex; align-items: center; gap: 8px;
  font: 500 12px/1 var(--f-mono); color: #8fa6bf; padding: 6px 6px 12px;
}
.monitor__foot { padding: 12px 6px 4px; justify-content: space-between; }
.led { width: 9px; height: 9px; border-radius: 50%; background: #3ddc84; box-shadow: 0 0 8px #3ddc84; }
.led--o { background: var(--orange); box-shadow: 0 0 8px var(--orange); }
.monitor__title { margin-left: 6px; letter-spacing: .08em; }
.monitor__read { margin-left: auto; color: var(--orange); font-variant-numeric: tabular-nums; }
.monitor__screen { position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 16 / 9; background: #eef0f2; }
.monitor__screen video { width: 100%; height: 100%; object-fit: cover; }
.monitor__screen::after { /* tarama çizgileri */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(11,26,43,.05) 0 1px, transparent 1px 3px);
}

.hero__pillars {
  list-style: none; padding: 0; margin-top: 80px; margin-bottom: 0;
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero__pillars li { padding: 28px 28px 36px 0; display: grid; gap: 6px; }
.hero__pillars li + li { padding-left: 28px; border-left: 1px solid rgba(255,255,255,.1); }
.hero__pillars b { font: 600 18px/1.2 var(--f-display); }
.hero__pillars b::before { content: "∿ "; color: var(--orange); }
.hero__pillars span { color: #9fb2c7; font-size: 15px; }

/* ---------- Ticker ---------- */
.ticker { background: var(--orange); color: var(--navy-950); overflow: hidden; padding: 18px 0; }
.ticker__track { display: flex; gap: 32px; width: max-content; animation: marquee 32s linear infinite; }
.ticker span { font: 600 22px/1 var(--f-display); white-space: nowrap; text-transform: uppercase; letter-spacing: .02em; }
.ticker i { font-style: normal; font-size: 24px; line-height: 1; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: 120px 0; }
.section--tint { background: var(--paper); }
.section--dark { background: var(--navy-900); color: #fff; position: relative; overflow: hidden; }
.head { max-width: 760px; margin-bottom: 56px; }
.kicker { font: 500 13px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--navy); margin-bottom: 18px; }
.kicker--light, .head--light .kicker { color: var(--orange-soft); }
.head h2 { font-size: clamp(34px, 4.6vw, 58px); font-weight: 600; color: var(--navy-900); }
.head--light h2 { color: #fff; }
.head__txt { margin-top: 20px; font-size: 18px; color: var(--muted); max-width: 60ch; }
.head--light .head__txt { color: #a9bdd2; }

/* Çözüm kartları */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -30px rgba(11,26,43,.35); border-color: transparent; }
.card--feature { grid-column: 1 / -1; flex-direction: row; }
.card--feature .card__media { flex: 1.1; }
.card--feature .card__body { flex: 1; padding: 48px; justify-content: center; }
.card__media { position: relative; overflow: hidden; min-height: 320px; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.card:hover .card__media img { transform: scale(1.05); }
.tag { position: absolute; top: 18px; left: 18px; background: var(--navy-900); color: #fff; font: 500 12px/1 var(--f-mono); padding: 8px 12px; border-radius: 999px; }
.card__body { padding: 32px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.card__no { font: 500 13px/1 var(--f-mono); color: var(--orange); }
.card h3 { font-size: 28px; font-weight: 600; color: var(--navy-900); }
.card p { color: var(--muted); }
.chips { list-style: none; padding: 0; margin: 4px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 13px; padding: 6px 12px; border-radius: 999px; background: var(--paper); color: var(--navy); border: 1px solid var(--line); }
.link { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 8px; font: 600 15px/1 var(--f-display); color: var(--navy); }
.link svg { width: 18px; height: 18px; transition: transform .25s var(--ease); }
.link:hover { color: var(--orange); }
.link:hover svg { transform: translateX(4px); }

.card__art { background: var(--navy-900); padding: 28px; aspect-ratio: 16 / 9; display: grid; place-items: center; }
.card__art svg { width: 100%; height: 100%; }
.pcb { fill: #12304d; stroke: #2a5682; stroke-width: 1.5; }
.trace path { stroke: #3c6f9e; stroke-width: 3; }
.chip { fill: #07121f; stroke: #4a7cad; stroke-width: 1.5; }
.pins path { stroke: #8fa6bf; stroke-width: 2; }
.pad circle { fill: var(--orange); }
.pulse { fill: var(--orange-soft); filter: drop-shadow(0 0 6px var(--orange)); }
.cell rect { fill: #12304d; stroke: #4a7cad; stroke-width: 1.5; }
.cap rect { fill: #4a7cad; }
.charge rect { fill: var(--orange); transform-box: fill-box; transform-origin: bottom; animation: charge 3.2s var(--ease) infinite; }
.charge rect:nth-child(2) { animation-delay: .4s; }
.charge rect:nth-child(3) { animation-delay: .8s; }
@keyframes charge { 0% { transform: scaleY(.08); opacity: .5; } 60%, 100% { transform: scaleY(1); opacity: 1; } }
.bolt { fill: #fff !important; stroke: none !important; }

/* Faz diyagramı */
.phase { position: relative; }
.phase__wave { width: 100%; height: 220px; position: absolute; top: 0; left: 0; }
.phase__axis { stroke: rgba(255,255,255,.12); stroke-width: 1; stroke-dasharray: 4 6; }
.phase__path { stroke: var(--orange); stroke-width: 2.5; vector-effect: non-scaling-stroke; filter: drop-shadow(0 0 8px rgba(240,146,10,.6)); }
.phase__list { list-style: none; margin: 0; padding: 260px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.phase__list li { padding: 0 24px 0 0; position: relative; }
.phase__list li::before { /* noktadan karta bağlayan çizgi */
  content: ""; position: absolute; left: 0; top: -150px; width: 1px; height: 130px;
  background: linear-gradient(transparent, rgba(255,255,255,.3));
}
.phase__list li:nth-child(1)::before { top: -150px; height: 150px; }
.phase__list li:nth-child(2)::before { top: -240px; height: 240px; }
.phase__list li:nth-child(3)::before { top: -150px; height: 150px; }
.phase__list li:nth-child(4)::before { top: -60px; height: 60px; }
.phase__list li::after { /* dalga üzerindeki nokta */
  content: ""; position: absolute; left: -7px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--navy-900); border: 3px solid var(--orange); box-shadow: 0 0 0 6px rgba(240,146,10,.15);
}
.phase__list li:nth-child(1)::after { top: -157px; }
.phase__list li:nth-child(2)::after { top: -247px; }
.phase__list li:nth-child(3)::after { top: -157px; }
.phase__list li:nth-child(4)::after { top: -67px; }
.deg { display: inline-block; font: 500 13px/1 var(--f-mono); color: var(--navy-950); background: var(--orange); padding: 6px 10px; border-radius: 999px; margin-bottom: 18px; }
.phase__list h3 { font-size: 22px; font-weight: 600; margin-bottom: 10px; }
.phase__list p { color: #a9bdd2; font-size: 15px; }

/* Süreç */
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.head--sticky { position: sticky; top: 120px; margin-bottom: 0; }
.head--sticky .btn { margin-top: 32px; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.steps li { display: flex; gap: 28px; padding: 32px 0; border-top: 1px solid var(--line); }
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps__n { font: 600 48px/1 var(--f-display); color: transparent; -webkit-text-stroke: 1.5px var(--navy); min-width: 72px; transition: color .4s; }
.steps li:hover .steps__n { color: var(--orange); -webkit-text-stroke-color: var(--orange); }
.steps h3 { font-size: 24px; font-weight: 600; color: var(--navy-900); margin-bottom: 8px; }
.steps p { color: var(--muted); }

/* SEO prose */
.prose { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.prose article { background: #fff; border-radius: var(--radius); padding: 36px; border: 1px solid var(--line); position: relative; }
.prose article::before { content: ""; position: absolute; left: 36px; top: 0; width: 44px; height: 3px; background: var(--orange); border-radius: 0 0 3px 3px; }
.prose h3 { font-size: 22px; font-weight: 600; color: var(--navy-900); margin-bottom: 12px; }
.prose p { color: var(--muted); }

/* Referanslar */
.refs { padding: 64px 0; border-bottom: 1px solid var(--line); }
.refs__in { display: flex; align-items: center; gap: 48px; }
.refs__title { font: 500 13px/1.4 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); max-width: 14ch; flex-shrink: 0; }
.refs__list { list-style: none; margin: 0; padding: 0; display: flex; flex: 1; justify-content: space-around; gap: 32px; align-items: center; }
.refs__list img { height: 38px; width: auto; filter: grayscale(1); opacity: .65; mix-blend-mode: multiply; transition: filter .3s, opacity .3s; }
.refs__list img:hover { filter: none; opacity: 1; }
.refs__list img.is-mark { height: 84px; }

/* SSS */
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 26px 48px 26px 0; position: relative;
  font: 600 20px/1.3 var(--f-display); color: var(--navy-900);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 0; top: 50%; width: 30px; height: 30px; margin-top: -15px;
  border-radius: 50%; border: 1.5px solid var(--line);
  background: linear-gradient(var(--navy), var(--navy)) center / 12px 2px no-repeat,
              linear-gradient(var(--navy), var(--navy)) center / 2px 12px no-repeat;
  transition: transform .3s var(--ease), background-color .3s;
}
.faq details[open] summary::after { transform: rotate(45deg); background-color: var(--orange); border-color: var(--orange); }
.faq details p { padding: 0 48px 28px 0; color: var(--muted); }
.faq a { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }

/* Teklif */
.quote { position: relative; background: var(--navy-900); color: #fff; padding: 140px 0 120px; overflow: hidden; }
.quote__wave { position: absolute; top: 40px; left: 0; width: 200%; height: 80px; color: rgba(240,146,10,.35); animation: drift 14s linear infinite; }
.quote__wave path { stroke-width: 2; vector-effect: non-scaling-stroke; }
@keyframes drift { to { transform: translateX(-50%); } }
.quote__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.quote h2 { font-size: clamp(34px, 4.6vw, 56px); font-weight: 600; }
.quote__txt { margin-top: 20px; color: #a9bdd2; font-size: 18px; max-width: 46ch; }
.contact { list-style: none; padding: 0; margin: 40px 0 0; display: grid; gap: 0; }
.contact li { display: grid; grid-template-columns: 150px 1fr; gap: 16px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.1); }
.contact span { font: 500 12px/1.8 var(--f-mono); text-transform: uppercase; letter-spacing: .08em; color: #7f97b0; }
.contact a { font: 500 18px/1.4 var(--f-display); }
.contact a:hover { color: var(--orange); }

.form { background: #fff; color: var(--ink); border-radius: 22px; padding: 36px; display: grid; gap: 18px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.6); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 8px; font: 500 13px/1 var(--f-display); color: var(--navy); }
.form input, .form textarea {
  font: 400 16px/1.4 var(--f-body); color: var(--ink);
  padding: 13px 14px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--paper);
  transition: border-color .2s, background .2s; width: 100%; resize: vertical;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--orange); background: #fff; }
.form input[aria-invalid="true"] { border-color: #d64545; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font: 500 13px/1 var(--f-display); color: var(--navy); margin-bottom: 10px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pills label { display: block; cursor: pointer; }
.pills input { position: absolute; opacity: 0; pointer-events: none; }
.pills span { display: inline-block; padding: 10px 16px; border-radius: 999px; border: 1.5px solid var(--line); font: 500 14px/1 var(--f-display); transition: all .2s; }
.pills input:checked + span { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }
.pills input:focus-visible + span { outline: 2px solid var(--orange); outline-offset: 2px; }
.form__err { color: #c23b3b; font-size: 14px; min-height: 0; }
.form__err:empty { display: none; }

/* Footer */
.footer { background: var(--navy-950); color: #9fb2c7; padding: 80px 0 0; font-size: 15px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; }
.footer__logo { width: 170px; height: auto; margin-bottom: 20px; }
.footer h2 { font: 500 12px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: #fff; margin-bottom: 18px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer a:hover { color: var(--orange); }
.footer address { font-style: normal; display: grid; gap: 12px; }
.social { display: inline-grid; place-items: center; width: 40px; height: 40px; margin-top: 20px; border-radius: 50%; border: 1px solid rgba(255,255,255,.15); }
.social svg { width: 18px; height: 18px; }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 64px; padding: 24px 0; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; }
.footer__bottom svg { width: 120px; color: var(--orange); }

/* WhatsApp */
.wa {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center;
  background: #25d366; color: #fff; box-shadow: 0 12px 30px -8px rgba(37,211,102,.7);
  transition: transform .25s var(--ease);
}
.wa svg { width: 30px; height: 30px; }
.wa:hover { transform: scale(1.08); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .menu { display: none; }
  .nav .btn--sm { margin-left: auto; }
  .burger {
    display: grid; gap: 6px; place-content: center; width: 44px; height: 44px;
    background: transparent; border: 1px solid rgba(255,255,255,.2); border-radius: 12px; cursor: pointer;
  }
  .burger span { width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s; }
  .nav.is-light .burger { border-color: var(--line); }
  .nav.is-light .burger span { background: var(--navy); }
  .nav.is-open .menu {
    display: grid; position: absolute; top: 78px; left: 0; right: 0; margin: 0;
    background: var(--navy-900); padding: 12px 16px 20px; border-bottom: 1px solid rgba(255,255,255,.1);
  }
  .nav.is-open .menu a { color: #fff; padding: 14px; font-size: 17px; }
  .nav.is-open .menu a[aria-current] { background: rgba(255,255,255,.1); }
  .menu__ind { display: none; }
  .nav.is-open .burger span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav.is-open .burger span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .hero__grid, .split, .quote__grid { grid-template-columns: 1fr; gap: 48px; }
  .monitor { transform: none; }
  .head--sticky { position: static; }
  .card--feature { flex-direction: column; }
  .card--feature .card__body { padding: 32px; }
  .phase__wave { display: none; }
  .phase__list { padding-top: 0; grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .phase__list li::before, .phase__list li::after { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .topbar__in > span:first-child { display: none; }
  .topbar__in { justify-content: center; }
  .nav .btn--sm { display: none; }
  .burger { margin-left: auto; }
  .brand { width: 120px; }
  .hero { padding-top: 120px; }
  .hero__pillars { grid-template-columns: 1fr; margin-top: 56px; }
  .hero__pillars li, .hero__pillars li + li { padding: 20px 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.1); }
  .hero__pillars li:first-child { border-top: 0; }
  .section { padding: 80px 0; }
  .cards, .prose, .phase__list, .form__row { grid-template-columns: 1fr; }
  .card--feature .card__media { min-height: 220px; }
  .refs__in { flex-direction: column; gap: 24px; }
  .refs__title { max-width: none; text-align: center; }
  .refs__list { flex-wrap: wrap; justify-content: center; }
  .refs__list img { height: 30px; } .refs__list img.is-mark { height: 64px; }
  .steps li { gap: 18px; }
  .steps__n { font-size: 36px; min-width: 52px; }
  .contact li { grid-template-columns: 1fr; gap: 4px; }
  .form { padding: 24px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 12px; }
  .hero h1 em { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* Grid taşma koruması + faz öğelerinde yalnızca opaklık animasyonu */
.hero__grid > *, .split > *, .quote__grid > *, .cards > *, .prose > * { min-width: 0; }
.phase__list .reveal { transform: none; }