/* ═══════════════════════════════════════════════════
   DESIGN TOKENS
   Void #020810 · Deep #07111f · Surface #0d1f35
   Cyan #00c8f0 · Text #e8edf5 · Muted #4a6070
   ═══════════════════════════════════════════════════ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --void: #020810;
  --deep: rgba(7, 17, 31, 0.72);
  --surface: rgba(13, 31, 53, 0.66);
  --subtle: #1e3248;
  --cyan: #00c8f0;
  --cyanM: rgba(0, 200, 240, 0.35);
  --cyanD: rgba(0, 200, 240, 0.12);
  --text: #e8edf5;
  --muted: #7a93a8;
  --fd: "Syne", sans-serif;
  --fb: "Space Grotesk", sans-serif;
  --fm: "JetBrains Mono", monospace;
}

html {
  scroll-behavior: smooth;
  background: var(--void);
}
body {
  background: transparent;
  color: var(--text);
  font-family: var(--fb);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::-webkit-scrollbar {
  width: 3px;
}
::-webkit-scrollbar-track {
  background: var(--void);
}
::-webkit-scrollbar-thumb {
  background: var(--cyanM);
}
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  background: var(--cyan);
  color: var(--void);
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 22px;
  text-decoration: none;
  font-weight: 700;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 16px;
}

/* ══════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════ */
#nav {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 28px 0;
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-family: var(--fd);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.25s ease;
}
.nav-logo:hover {
  opacity: 0.82;
}
/* Yörünge monogramı — sitenin atom görsel diliyle aynı */
.nav-mark {
  display: inline-flex;
  width: 27px;
  height: 27px;
  flex: 0 0 auto;
  color: var(--text);
  transition: filter 0.35s ease;
}
.nav-mark svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.nav-logo:hover .nav-mark {
  filter: drop-shadow(0 0 6px rgba(0, 200, 240, 0.55));
}
.nav-word {
  display: inline-block;
}
.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--cyan);
}
.nav-cta {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyanM);
  padding: 10px 22px;
  text-decoration: none;
  transition:
    background 0.2s,
    color 0.2s;
}
.nav-cta:hover {
  background: var(--cyan);
  color: var(--void);
}
.nav-burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition:
    transform 0.3s,
    opacity 0.3s;
}

/* ══════════════════════════════════════
   HERO  — full-viewport Three.js stage
   ══════════════════════════════════════ */
#hero {
  position: relative;
  width: 100%;
  min-height: max(100vh, 640px);
  height: auto;
  overflow: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
#three-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* cinematic vignette */
#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, transparent 30%, rgba(2, 8, 16, 0.5) 100%),
    linear-gradient(
      to bottom,
      rgba(2, 8, 16, 0.2) 0%,
      transparent 18%,
      transparent 72%,
      rgba(2, 8, 16, 1) 100%
    );
  pointer-events: none;
  z-index: 2;
}

/* HUD corners */
.hud {
  position: absolute;
  z-index: 3;
  width: 34px;
  height: 34px;
}
.hud-tl {
  top: 22px;
  left: 22px;
  border-top: 1.5px solid rgba(0, 200, 240, 0.4);
  border-left: 1.5px solid rgba(0, 200, 240, 0.4);
}
.hud-tr {
  top: 22px;
  right: 22px;
  border-top: 1.5px solid rgba(0, 200, 240, 0.4);
  border-right: 1.5px solid rgba(0, 200, 240, 0.4);
}
.hud-bl {
  bottom: 22px;
  left: 22px;
  border-bottom: 1.5px solid rgba(0, 200, 240, 0.4);
  border-left: 1.5px solid rgba(0, 200, 240, 0.4);
}
.hud-br {
  bottom: 22px;
  right: 22px;
  border-bottom: 1.5px solid rgba(0, 200, 240, 0.4);
  border-right: 1.5px solid rgba(0, 200, 240, 0.4);
}

/* live telemetry badges */
.badge {
  position: absolute;
  z-index: 3;
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  color: rgba(0, 200, 240, 0.75);
  text-transform: uppercase;
  line-height: 1.7;
}
.badge-tl {
  top: 70px;
  left: 52px;
}
.badge-tr {
  top: 70px;
  right: 52px;
  text-align: right;
}

/* hero content overlay */
.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 120px;
}
.hc-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.hero-eyebrow::before {
  content: "";
  display: block;
  width: 38px;
  height: 1px;
  background: var(--cyan);
}
.hero-eyebrow span {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
}
.hero-h1 {
  font-family: var(--fd);
  font-size: clamp(44px, 6.4vw, 128px);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -3px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 36px;
}
.hero-h1 .outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  display: block;
}
.hero-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-desc {
  font-size: 15px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.68);
  line-height: 1.85;
  max-width: 420px;
}
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.btn-p {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--cyan);
  color: var(--void);
  padding: 15px 34px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
  transition:
    opacity 0.2s,
    transform 0.2s;
}
.btn-p:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}
.btn-g {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 15px 34px;
  text-decoration: none;
  display: inline-block;
  transition:
    border-color 0.2s,
    color 0.2s;
}
.btn-g:hover {
  border-color: var(--cyanM);
  color: var(--cyan);
}

/* scroll indicator */
.scroll-ind {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-ind span {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  color: rgba(232, 237, 245, 0.28);
  text-transform: uppercase;
  white-space: nowrap;
}
.scroll-ln {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, rgba(0, 200, 240, 0.5), transparent);
  animation: scrlP 2s ease-in-out infinite;
}
@keyframes scrlP {
  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1.1);
  }
}

/* ══════════════════════════════════════
   METRICS BAR
   ══════════════════════════════════════ */
.metrics-bar {
  border-top: 1px solid rgba(0, 200, 240, 0.06);
  border-bottom: 1px solid rgba(0, 200, 240, 0.06);
}
.mb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.mb-item {
  padding: 44px 36px;
  border-left: 1px solid rgba(0, 200, 240, 0.07);
  transition: background 0.3s;
}
.mb-item:hover {
  background: rgba(0, 200, 240, 0.025);
}
.mb-item:first-child {
  border-left: none;
  padding-left: 0;
}
.mb-num {
  font-family: var(--fd);
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  margin-bottom: 7px;
}
.mb-num sup {
  font-size: 16px;
  color: var(--cyan);
}
.mb-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ══════════════════════════════════════
   SHARED LAYOUT
   ══════════════════════════════════════ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
}
section {
  padding: 120px 0;
}

.sec-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.sec-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--cyan);
  flex-shrink: 0;
}
.sec-label span {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
}
.sec-h2 {
  font-family: var(--fd);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 24px;
}
.sec-h2 span {
  display: block;
  overflow-wrap: normal;
}
.sec-sub {
  font-size: 15px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.62);
  line-height: 1.85;
  max-width: 520px;
}

/* ══════════════════════════════════════
   ABOUT
   ══════════════════════════════════════ */
.about {
  background: var(--deep);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}

/* 3D atom visual */
.about-visual {
  position: relative;
  height: 460px;
}
.atom-stage {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.atom-core {
  position: relative;
  width: 340px;
  height: 340px;
}
.a-nucleus {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 22px;
  height: 22px;
  background: radial-gradient(circle, #fff 0%, var(--cyan) 60%);
  border-radius: 50%;
  box-shadow:
    0 0 30px var(--cyan),
    0 0 60px rgba(0, 200, 240, 0.4);
  animation: nucP 2.5s ease-in-out infinite alternate;
  z-index: 2;
}
@keyframes nucP {
  from {
    box-shadow:
      0 0 20px var(--cyan),
      0 0 40px rgba(0, 200, 240, 0.3);
  }
  to {
    box-shadow:
      0 0 45px var(--cyan),
      0 0 90px rgba(0, 200, 240, 0.55);
  }
}
.a-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  border: 1px solid rgba(0, 200, 240, 0.3);
}
.a-r1 {
  width: 110px;
  height: 110px;
  margin: -55px 0 0 -55px;
  animation: sA 4s linear infinite;
}
.a-r2 {
  width: 195px;
  height: 195px;
  margin: -97.5px 0 0 -97.5px;
  animation: sB 7s linear infinite reverse;
  border-color: rgba(120, 70, 255, 0.3);
  transform: rotateX(65deg);
}
.a-r3 {
  width: 300px;
  height: 300px;
  margin: -150px 0 0 -150px;
  animation: sC 11s linear infinite;
  border-color: rgba(0, 200, 240, 0.15);
  transform: rotateX(65deg) rotateZ(50deg);
}
@keyframes sA {
  to {
    transform: rotateZ(360deg);
  }
}
@keyframes sB {
  to {
    transform: rotateX(65deg) rotateZ(360deg);
  }
}
@keyframes sC {
  to {
    transform: rotateX(65deg) rotateZ(410deg);
  }
}
.a-dot {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan);
  top: 50%;
  left: 50%;
  margin: -3.5px 0 0 -3.5px;
}
.a-r1 .a-dot {
  transform: translateX(52px);
}
.a-r2 .a-dot {
  transform: translateX(94px);
  background: rgba(160, 100, 255, 0.9);
  box-shadow: 0 0 8px rgba(160, 100, 255, 0.8);
}
.a-r3 .a-dot {
  transform: translateX(147px);
}

/* floating equations */
.eq-f {
  position: absolute;
  font-family: var(--fm);
  font-size: 12px;
  color: rgba(0, 200, 240, 0.4);
  letter-spacing: 1px;
  pointer-events: none;
}
.ef-a {
  top: 10%;
  left: 0%;
  animation: efD 6s ease-in-out infinite alternate;
}
.ef-b {
  bottom: 15%;
  right: 2%;
  animation: efD 8s ease-in-out infinite alternate-reverse;
}
.ef-c {
  top: 52%;
  left: -2%;
  animation: efD 7s ease-in-out infinite alternate;
}
.ef-d {
  top: 25%;
  right: 0%;
  animation: efD 9s ease-in-out infinite alternate-reverse;
  color: rgba(120, 80, 255, 0.4);
}
@keyframes efD {
  from {
    opacity: 0.25;
    transform: translateY(0);
  }
  to {
    opacity: 0.65;
    transform: translateY(-9px);
  }
}

.about-text .sec-sub {
  max-width: 100%;
  margin-bottom: 40px;
}
.pillars {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}
.pillar {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 22px;
  border: 1px solid rgba(0, 200, 240, 0.08);
  background: rgba(0, 200, 240, 0.02);
  transition:
    border-color 0.3s,
    background 0.3s;
}
.pillar:hover {
  border-color: rgba(0, 200, 240, 0.22);
  background: rgba(0, 200, 240, 0.05);
}
.pi-icon {
  font-family: var(--fm);
  font-size: 18px;
  color: var(--cyan);
  flex-shrink: 0;
  padding-top: 2px;
  opacity: 0.8;
}
.pi-title {
  font-family: var(--fd);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 5px;
}
.pi-desc {
  font-size: 13px;
  color: rgba(232, 237, 245, 0.62);
  line-height: 1.65;
}

/* ══════════════════════════════════════
   DOMAINS
   ══════════════════════════════════════ */
.domains {
  background: var(--void);
}
.domains-hd {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 72px;
}
.d-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.d-card {
  background: var(--deep);
  padding: 44px 36px;
  border-top: 2px solid transparent;
  position: relative;
  overflow: hidden;
  transition:
    border-color 0.3s,
    background 0.3s,
    transform 0.3s;
}
.d-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 110%, rgba(0, 200, 240, 0.07) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
}
.d-card:hover {
  border-color: var(--cyan);
  background: var(--surface);
  transform: translateY(-4px);
}
.d-card:hover::after {
  opacity: 1;
}
.d-glyph {
  font-family: var(--fm);
  font-size: 22px;
  color: var(--cyan);
  opacity: 0.65;
  display: block;
  margin-bottom: 26px;
}
.d-title {
  font-family: var(--fd);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 11px;
}
.d-desc {
  font-size: 13px;
  color: rgba(232, 237, 245, 0.38);
  line-height: 1.75;
  margin-bottom: 22px;
}
.d-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.dtag {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(0, 200, 240, 0.78);
  border: 1px solid rgba(0, 200, 240, 0.22);
  padding: 4px 10px;
}

/* ══════════════════════════════════════
   WAVE VISUALIZER  (canvas)
   ══════════════════════════════════════ */
.visualizer {
  background: var(--deep);
  padding: 0;
  overflow: hidden;
}
.vis-top {
  padding: 100px 0 60px;
}
.vis-stage {
  width: 100%;
  height: 340px;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(0, 200, 240, 0.07);
  border-bottom: 1px solid rgba(0, 200, 240, 0.07);
}
#waveCanvas {
  display: block;
  width: 100%;
  height: 100%;
}
.vis-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--deep) 0%,
    transparent 7%,
    transparent 93%,
    var(--deep) 100%
  );
  pointer-events: none;
}
.vis-bottom {
  padding: 60px 0 100px;
}
.vs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 48px;
}
.vs-item {
  background: var(--surface);
  padding: 26px 22px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s;
}
.vs-item:hover {
  border-color: var(--cyan);
}
.vs-val {
  font-family: var(--fm);
  font-size: 20px;
  color: var(--cyan);
  letter-spacing: 1px;
  margin-bottom: 5px;
}
.vs-lbl {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

/* ══════════════════════════════════════
   METHODOLOGY
   ══════════════════════════════════════ */
.method {
  background: var(--void);
}
.method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 72px;
}
.method-steps {
  display: flex;
  flex-direction: column;
}
.m-step {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 22px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(0, 200, 240, 0.07);
  transition: padding-left 0.3s;
}
.m-step:hover {
  padding-left: 8px;
}
.step-num {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--cyan);
  padding-top: 4px;
}
.step-title {
  font-family: var(--fd);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 7px;
}
.step-desc {
  font-size: 13px;
  color: rgba(232, 237, 245, 0.38);
  line-height: 1.7;
}
.method-panel {
  background: var(--surface);
  padding: 48px;
  border: 1px solid rgba(0, 200, 240, 0.08);
  position: sticky;
  top: 120px;
}
.panel-hd {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 200, 240, 0.1);
}
.p-eq {
  font-family: var(--fm);
  font-size: 13px;
  color: rgba(232, 237, 245, 0.65);
  line-height: 2.3;
}
.p-eq .eb {
  color: var(--cyan);
}
.p-eq .ed {
  color: var(--muted);
}
.panel-note {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(0, 200, 240, 0.07);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.75;
  font-style: italic;
}

/* ══════════════════════════════════════
   HIGGS POTENTIAL WELL (SVG visual)
   ══════════════════════════════════════ */
.higgs {
  background: var(--deep);
  overflow: hidden;
  position: relative;
}
.higgs-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}
.higgs-svg-wrap {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.higgs-svg-wrap svg {
  width: 100%;
  max-width: 480px;
  height: auto;
  overflow: visible;
}
.higgs-text .sec-sub {
  max-width: 100%;
  margin-bottom: 36px;
}
.higgs-quote {
  border-left: 2px solid var(--cyan);
  padding: 22px 26px;
  background: rgba(0, 200, 240, 0.03);
  margin-top: 36px;
}
.higgs-quote p {
  font-family: var(--fd);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 10px;
}
.higgs-quote cite {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
}

/* ══════════════════════════════════════
   FOUNDER
   ══════════════════════════════════════ */
.founder {
  background: var(--void);
}
.founder-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 100px;
  align-items: center;
}
.founder-card {
  background: var(--surface);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 52px 44px;
  position: relative;
  overflow: hidden;
}
.founder-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.f-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--surface), var(--subtle));
  border: 1.5px solid rgba(0, 200, 240, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  font-family: var(--fd);
  font-size: 28px;
  font-weight: 800;
  color: var(--cyan);
}
.f-name {
  font-family: var(--fd);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 6px;
}
.f-role {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 26px;
}
.f-bio {
  font-size: 13px;
  color: rgba(232, 237, 245, 0.62);
  line-height: 1.8;
  margin-bottom: 28px;
}
.f-domains {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.fdi {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 1.5px;
  color: rgba(232, 237, 245, 0.65);
}
.fdi::before {
  content: "";
  display: block;
  width: 20px;
  height: 1px;
  background: var(--cyanM);
  flex-shrink: 0;
}
.founder-text .sec-sub {
  max-width: 100%;
  margin-bottom: 34px;
}
.founder-quote {
  border-left: 2px solid var(--cyan);
  padding: 22px 26px;
  background: rgba(0, 200, 240, 0.03);
  margin-top: 36px;
}
.founder-quote p {
  font-family: var(--fd);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 10px;
}
.founder-quote cite {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
}

/* ══════════════════════════════════════
   CONTACT
   ══════════════════════════════════════ */
.contact {
  padding: 160px 0;
  background: var(--deep);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 80% 60% at 50% 50%,
    rgba(0, 80, 180, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.contact-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
}
.contact-inner .sec-label {
  justify-content: center;
}
.contact-h2 {
  font-family: var(--fd);
  font-size: clamp(30px, 4vw, 52px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1.5px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 22px;
}
.contact-h2 span {
  display: block;
  overflow-wrap: normal;
}
.contact-sub {
  font-size: 15px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.38);
  line-height: 1.85;
  margin-bottom: 52px;
}
.contact-email {
  font-family: var(--fd);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--cyan);
  text-decoration: none;
  display: block;
  margin-bottom: 48px;
  transition: opacity 0.2s;
}
.contact-email:hover {
  opacity: 0.65;
}
.contact-cta {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--cyan);
  color: var(--void);
  padding: 17px 46px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
  transition:
    opacity 0.2s,
    transform 0.2s;
}
.contact-cta:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}
.cg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 80px;
  text-align: left;
}
.cg-item {
  background: var(--void);
  padding: 30px 26px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.cg-item:hover {
  border-color: var(--cyan);
}
.cg-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 7px;
}
.cg-val {
  font-family: var(--fd);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
}

/* ── CONTACT FORM ── */
.contact-form {
  max-width: 520px;
  margin: 0 auto 0;
  text-align: left;
}
.cf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.15);
  color: var(--text);
  font-family: var(--fb);
  font-size: 14px;
  padding: 14px 16px;
  transition: border-color 0.2s;
  resize: vertical;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--muted);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--cyan);
}
.contact-form textarea {
  margin-bottom: 20px;
  min-height: 110px;
}
.contact-form button {
  width: 100%;
  border: none;
  cursor: pointer;
}
.contact-form button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.cf-status {
  margin-top: 16px;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 1px;
  text-align: center;
  min-height: 16px;
}
/* ══ Cookie Consent (KVKK) — ortak: css/base.css ══ */
.cf-status.ok {
  color: var(--cyan);
}
.cf-status.err {
  color: #ff6b6b;
}
@media (max-width: 540px) {
  .cf-row {
    grid-template-columns: 1fr;
  }
}

/* ══ Back to top ══ */
.btt {
  position: fixed;
  right: 16px;
  bottom: 94px;
  z-index: 90;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--cyanM);
  background: rgba(4, 10, 20, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--cyan);
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity 0.3s,
    transform 0.3s,
    background 0.2s,
    color 0.2s;
}
.btt.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.btt:hover {
  background: var(--cyan);
  color: var(--void);
}
@media (max-width: 540px) {
  .btt {
    right: 16px;
    bottom: 92px;
    width: 42px;
    height: 42px;
  }
}

/* ══ Page header (alt sayfalar) ══ */
.page-head {
  padding: 170px 0 60px;
  background: var(--void);
  border-bottom: 1px solid rgba(0, 200, 240, 0.07);
  position: relative;
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 200, 240, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 200, 240, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 70%);
}
.page-head .ph-eyebrow {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-head .ph-eyebrow::before {
  content: "";
  width: 38px;
  height: 1px;
  background: var(--cyan);
}
.page-head h1 {
  font-family: var(--fd);
  font-size: clamp(30px, 6vw, 60px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -1px;
  color: var(--text);
  line-height: 1.05;
}
.page-head .ph-sub {
  font-size: 15px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.5);
  line-height: 1.8;
  max-width: 560px;
  margin-top: 16px;
}
@media (max-width: 900px) {
  .page-head {
    padding: 130px 0 44px;
  }
}

/* ══ Explore cards ══ */
.explore {
  padding: 90px 0;
}
.ex-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 52px;
}
.ex-card {
  background: var(--deep);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 40px 34px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  transition:
    border-color 0.3s,
    transform 0.3s,
    background 0.3s;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ex-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.ex-card:hover {
  border-color: var(--cyanM);
  background: var(--surface);
  transform: translateY(-4px);
}
.ex-card:hover::before {
  opacity: 1;
}
.ex-glyph {
  font-family: var(--fm);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 2px;
}
.ex-card h3 {
  font-family: var(--fd);
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.5px;
  color: var(--text);
}
.ex-card p {
  font-size: 13.5px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.5);
  line-height: 1.75;
  margin: 0;
}
.ex-arrow {
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-top: auto;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.ex-card:hover .ex-arrow {
  opacity: 1;
}
@media (max-width: 900px) {
  .ex-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* ══════════════════════════════════════
   ACHIEVEMENTS
   ══════════════════════════════════════ */
.ach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 52px;
}
.ach-card {
  background: var(--deep);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 40px 34px;
  position: relative;
  overflow: hidden;
  transition:
    border-color 0.3s,
    transform 0.3s,
    background 0.3s;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 180px;
}
.ach-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.ach-card:hover {
  border-color: var(--cyanM);
  background: var(--surface);
  transform: translateY(-4px);
}
.ach-card:hover::before {
  opacity: 1;
}
.ach-num {
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--cyan);
  opacity: 0.8;
}
.ach-txt {
  font-family: var(--fd);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.2px;
  color: var(--text);
  margin: 0;
  font-weight: 600;
}
@media (max-width: 900px) {
  .ach-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .ach-card {
    min-height: 0;
  }
}

/* ══ İLK'LER KANIT PANELİ ══════════════════════════════════
   "İlk" iddialarının altında tıklanabilir, otomatik yenilen
   kanıt listesi. Kimse "gerçekten ilk mi?" diye sorduğunda
   cevap site üzerinde okunabilir. */
.ach-proof {
  margin-top: 26px;
  padding: 22px 24px;
  border: 1px solid rgba(0, 200, 240, 0.16);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(0, 200, 240, 0.05), rgba(0, 200, 240, 0.01));
}
.ach-proof-h {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--fm);
  font-size: 13px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cyan);
}
.ach-proof-stamp {
  font-size: 11px;
  letter-spacing: 0.6px;
  color: rgba(232, 246, 251, 0.55);
  text-transform: none;
  white-space: nowrap;
}
.ach-proof-stamp[data-ok="1"] {
  color: #4ade80;
}
.ach-proof-stamp[data-ok="0"] {
  color: #f87171;
}
.ach-proof-sub {
  margin: 8px 0 14px;
  font-size: 13.5px;
  line-height: 1.6;
  font-weight: 300;
  color: rgba(232, 246, 251, 0.6);
}
.ach-proof-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.ach-ev {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: start;
  padding-top: 10px;
  border-top: 1px solid rgba(232, 246, 251, 0.07);
}
.ach-ev:first-child {
  border-top: 0;
  padding-top: 0;
}
.ach-ev-i {
  font-size: 13px;
  line-height: 1.5;
  color: #4ade80;
}
.ach-ev[data-durum="DOGRULANMADI"] .ach-ev-i {
  color: #f87171;
}
.ach-ev[data-durum="bilinmiyor"] .ach-ev-i,
.ach-ev[data-durum="manuel"] .ach-ev-i {
  color: #fbbf24;
}
.ach-ev-b {
  min-width: 0;
}
.ach-ev-t {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
}
.ach-ev-k {
  margin: 3px 0 0;
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.55;
  color: rgba(232, 246, 251, 0.62);
}
.ach-ev-v {
  display: inline-block;
  margin-top: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(0, 200, 240, 0.22);
  background: rgba(0, 200, 240, 0.08);
  font-family: var(--fm);
  font-size: 11px;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-word;
}
.ach-ev-v:hover {
  background: rgba(0, 200, 240, 0.18);
}
@media (max-width: 900px) {
  .ach-proof {
    padding: 18px 16px;
  }
  .ach-proof-h {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
footer {
  background: var(--deep);
  border-top: 1px solid rgba(0, 200, 240, 0.07);
  padding: 44px 0;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--fd);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}
.footer-logo span {
  color: var(--cyan);
}
.footer-copy {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
}
.footer-sys {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(0, 200, 240, 0.25);
}

/* ══════════════════════════════════════
   SCROLL REVEAL
   ══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.75s ease,
    transform 0.75s ease;
}
.reveal.vis {
  opacity: 1;
  transform: translateY(0);
}
.d1 {
  transition-delay: 0.1s;
}
.d2 {
  transition-delay: 0.2s;
}
.d3 {
  transition-delay: 0.3s;
}
.d4 {
  transition-delay: 0.4s;
}

/* ══════════════════════════════════════
   I18N — UZUN ÇEVİRİLERDE TAŞMA KORUMASI
   ══════════════════════════════════════ */
.lc-box {
  padding: 52px;
}
.lc-cta {
  white-space: nowrap;
  text-align: center;
  line-height: 1.4;
}
[data-i18n] {
  overflow-wrap: break-word;
}
.hero-h1 span,
.hero-eyebrow span,
.sec-h2,
.contact-h2,
.contact-sub,
.contact-email,
.sec-label span,
.d-title,
.d-sub,
.d-lbl,
.mb-lbl,
.vs-lbl,
.cg-lbl,
.cg-val,
.pi-title,
.pi-sub,
.step-title,
.panel-hd,
.m-title,
.b-num,
.b-lbl,
.b-title,
.founder-name,
.founder-role,
.hg-badge span,
.higgs-note,
.fs,
.fc {
  overflow-wrap: break-word;
}
.d-grid > *,
.cg-grid > *,
.vs-grid > *,
.domains-hd > *,
.mb-item,
.about-grid > *,
.founder-inner > *,
.higgs-inner > * {
  min-width: 0;
}
.m-step {
  grid-template-columns: 52px minmax(0, 1fr);
}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 1100px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  .nav-burger {
    display: flex;
  }
  .nav-inner {
    padding: 0 24px;
  }
  .hc-wrap,
  .contact-inner,
  .footer-inner {
    padding: 0 24px;
  }
  .container {
    padding: 0 24px;
  }
  .hero-h1 {
    font-size: clamp(30px, 8vw, 78px);
  }
  .hero-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .mb-inner {
    grid-template-columns: 1fr 1fr;
    padding: 0 24px;
  }
  .mb-item:nth-child(3) {
    border-left: none;
    padding-left: 0;
  }
  .about-grid,
  .founder-inner,
  .higgs-inner {
    grid-template-columns: 1fr;
    gap: 52px;
  }
  .about-visual,
  .higgs-svg-wrap {
    height: 300px;
    overflow: hidden;
  }
  .eq-f {
    font-size: 10px;
    max-width: calc(100% - 8px);
  }
  .domains-hd {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 48px;
  }
  .d-grid,
  .cg-grid {
    grid-template-columns: 1fr;
  }
  .vs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .method-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .method-panel {
    position: static;
  }
  .badge-tl,
  .badge-tr {
    display: none;
  }
  #blog-list {
    grid-template-columns: 1fr 1fr !important;
  }
}
@media (max-width: 540px) {
  .hero-btns {
    flex-direction: column;
  }
  .btn-p,
  .btn-g {
    width: 100%;
    text-align: center;
  }
  .mb-inner {
    grid-template-columns: 1fr 1fr;
  }
  .vs-grid {
    grid-template-columns: 1fr 1fr;
  }
  .mb-item {
    padding: 36px 20px;
  }
  .mb-num {
    font-size: clamp(20px, 5vw, 26px);
  }
  .lc-box {
    padding: 32px 24px;
  }
  .lc-cta {
    white-space: normal;
    padding: 16px 30px;
  }
  .sec-h2 {
    font-size: clamp(20px, 5.6vw, 36px);
    line-height: 1.05;
  }
  .contact-h2 {
    font-size: clamp(24px, 7vw, 40px);
  }
  .contact-email {
    font-size: clamp(14px, 4.2vw, 20px);
  }
  .contact-inner {
    padding: 0 24px;
  }
  #blog-list {
    grid-template-columns: 1fr !important;
  }
}
/* @media(prefers-reduced-motion) — ortak: css/base.css */

/* ═════════════════════════════════════════════════════════
   BILIM SAYFASI · Kuantum Sözlüğü + Türkiye Ekosistemi
   ═════════════════════════════════════════════════════════ */
.sayfa {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.25rem 5rem;
  line-height: 1.65;
}
.ust-cubuk {
  margin-bottom: 2rem;
  font-size: 0.95rem;
}
.ust-cubuk a {
  color: var(--accent, #7dd3fc);
  text-decoration: none;
}
.ust-cubuk a:hover {
  text-decoration: underline;
}
.sayfa h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  margin: 0 0 0.6rem;
  letter-spacing: -0.02em;
}
.giris {
  color: #9fb0c4;
  margin: 0 0 3rem;
  max-width: 60ch;
}
.blok {
  margin-bottom: 4rem;
}
.blok h2 {
  font-size: 1.35rem;
  margin: 0 0 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.not {
  color: #8fa3b8;
  font-size: 0.9rem;
  margin: 0 0 1.1rem;
}
.arama {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  border: 1px solid #24344a;
  background: #0d1522;
  color: #e6edf5;
  font-size: 1rem;
  font-family: inherit;
}
.arama:focus {
  outline: 2px solid var(--accent, #7dd3fc);
  outline-offset: 2px;
}
.filtreler {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}
.filtreler button {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid #24344a;
  background: #0d1522;
  color: #9fb0c4;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}
.filtreler button:hover {
  border-color: #3d567a;
  color: #e6edf5;
}
.filtreler button[aria-pressed="true"] {
  background: var(--accent, #7dd3fc);
  border-color: var(--accent, #7dd3fc);
  color: #0a0f18;
  font-weight: 600;
}
.sozluk {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.terim details {
  border: 1px solid #1b2739;
  border-radius: 12px;
  background: #0b121d;
  overflow: hidden;
}
.terim summary {
  cursor: pointer;
  padding: 0.75rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  list-style: none;
}
.terim summary::-webkit-details-marker {
  display: none;
}
.terim summary::before {
  content: "▸";
  color: #4a6a8f;
  font-size: 0.8rem;
  transition: transform 0.15s;
}
.terim details[open] summary::before {
  transform: rotate(90deg);
}
.terim .tr {
  font-weight: 600;
  color: #e6edf5;
}
.terim .en {
  color: #7dd3fc;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.terim .etiket {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #6b8299;
  border: 1px solid #24344a;
  border-radius: 999px;
  padding: 0.1rem 0.45rem;
}
.terim details p {
  margin: 0;
  padding: 0 1rem 1rem 2rem;
  color: #9fb0c4;
  font-size: 0.9rem;
}
.bos {
  color: #6b8299;
  font-style: italic;
  margin-top: 1rem;
}
.ekosistem {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.aktör {
  border: 1px solid #1b2739;
  border-radius: 14px;
  background: #0b121d;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.aktör-bas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.72rem;
}
.aktör .yil {
  font-weight: 700;
  color: #7dd3fc;
}
.yil-bilinmez {
  color: #e0a458;
  font-style: italic;
  font-weight: 400;
}
.aktör .kategori {
  color: #6b8299;
  border: 1px solid #24344a;
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
}
.aktör .sehir {
  color: #6b8299;
}
.aktör-ad {
  font-weight: 600;
  color: #e6edf5;
  text-decoration: none;
  font-size: 1rem;
}
.aktör-ad:hover {
  color: #7dd3fc;
  text-decoration: underline;
}
.aktör p {
  margin: 0;
  color: #9fb0c4;
  font-size: 0.87rem;
}
.aktör .tarih-not {
  font-size: 0.75rem;
  color: #e0a458;
  border-top: 1px dashed #24344a;
  padding-top: 0.4rem;
  margin-top: 0.2rem;
}
.uyari-kutu {
  margin-top: 1.2rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid #e0a458;
  background: #131a10;
  border-radius: 0 10px 10px 0;
  color: #9fb0c4;
  font-size: 0.85rem;
}
.uyari-kutu strong {
  color: #e0a458;
}
.uyari-kutu a {
  color: #7dd3fc;
}
@media (max-width: 600px) {
  .ekosistem {
    grid-template-columns: 1fr;
  }
  .sayfa {
    padding-top: 1.2rem;
  }
}

/* ══════════════════════════════════════
   DOKUNMA HEDEFLERİ (en az 44px)
   Playwright denetimi: 30x23 burger, 24px footer logo, 16px değer
   linkleri dokunulamayacak kadar küçüktü.
   ══════════════════════════════════════ */
.footer-logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.contact-email,
.cg-val {
  display: inline-block;
  padding: 12px 0;
}

/* ═══ Dokunma hedefleri II: logo, kırıntı bağlantıları, bilim filtreleri ═══ */
.nav-logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.filtreler button {
  min-height: 44px;
  padding: 0 1rem;
  display: inline-flex;
  align-items: center;
}
/* Atom halkası iPhone SE'de 3px taşıyordu */
.atom-stage,
.about-visual {
  overflow: hidden;
}

/* ═══ Dokunma hedefleri III: kalan gerçek kontroller ═══ */
/* Footer hata bildir bağlantısı 13px yüksekliğindeydi */
.footer-sys a {
  display: inline-block;
  padding: 12px 0;
}

/* ══════════════════════════════════════
   HAMBURGER HER EKRANDA (sayfa sayısı arttı)
   Üst menü linkleri tüm genişliklerde gizlenir; bölümlere
   menü panelinden ulaşılır. Böylece yeni sayfa eklenince
   başlık taşmaz, sadece panele eklenir.
   ══════════════════════════════════════ */
.nav-links {
  display: none;
}

/* ═══ Kısa ekranlar (iPhone SE, yatay telefon): menü tek parçada sığsın ═══ */
/* ══════════════════════════════════════════════════════════════
   DAİRESEL NAVİGASYON (içeriden dışarı açılır)
   Yukarıdaki iki kolonlu panel yerine: butona tıklanınca
   öğeler merkezden dışarı doğru halka halinde açılır.
   Yeni sayfa eklemek için sadece NAV dizisine satır ekle.
   ══════════════════════════════════════════════════════════════ */
.radial {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.26s ease,
    visibility 0.26s;
  background: rgba(2, 8, 16, 0.97);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}
.radial.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.radial-ring {
  position: relative;
  width: 0;
  height: 0;
}
.radial-core {
  position: relative;
  width: 68px;
  height: 68px;
  margin: -34px 0 0 -34px;
  border-radius: 50%;
  border: 1px solid var(--cyanM);
  background: radial-gradient(circle at 32% 28%, rgba(0, 200, 240, 0.26), rgba(4, 8, 16, 0.96));
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition:
    transform 0.3s ease,
    background 0.2s;
}
.radial-core:hover {
  transform: rotate(90deg);
  background: var(--cyan);
  color: var(--void);
}
.radial-core svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}
.ri {
  position: absolute;
  width: 62px;
  height: 62px;
  margin: -31px 0 0 -31px;
  border-radius: 50%;
  border: 1px solid var(--cyanM);
  background: radial-gradient(circle at 32% 28%, rgba(0, 200, 240, 0.2), rgba(4, 8, 16, 0.96));
  color: var(--cyan);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  text-decoration: none;
  z-index: 1;
  opacity: 0;
  transform: rotate(var(--a)) translate(0) rotate(calc(-1 * var(--a))) scale(0.2);
  transition:
    transform 0.42s cubic-bezier(0.22, 0.9, 0.28, 1.18),
    opacity 0.26s ease,
    border-color 0.2s,
    background 0.2s;
}
.radial.open .ri {
  opacity: 1;
  transform: rotate(var(--a)) translate(var(--r)) rotate(calc(-1 * var(--a))) scale(1);
  transition-delay: calc(var(--i) * 32ms);
}
.ri:hover,
.ri:focus-visible {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--void);
  z-index: 3;
}
.ri i {
  font-style: normal;
  font-size: 17px;
  line-height: 1;
}
.ri span {
  font-family: var(--fm);
  font-size: 7.5px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  line-height: 1.1;
  text-align: center;
  padding: 0 3px;
}
.radial-hint {
  position: fixed;
  bottom: 26px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.3s ease 0.25s;
}
.radial.open .radial-hint {
  opacity: 1;
}
/* Halka yarıçapı ekrana göre */
.radial {
  --r: min(34vmin, 190px);
}
@media (max-width: 480px) {
  .radial {
    --r: min(36vmin, 132px);
  }
  .ri {
    width: 52px;
    height: 52px;
    margin: -26px 0 0 -26px;
  }
  .ri i {
    font-size: 15px;
  }
  .ri span {
    font-size: 6.5px;
  }
  .radial-core {
    width: 58px;
    height: 58px;
    margin: -29px 0 0 -29px;
  }
}
@media (max-height: 520px) {
  .radial {
    --r: min(30vmin, 108px);
  }
  .ri {
    width: 46px;
    height: 46px;
    margin: -23px 0 0 -23px;
  }
  .ri span {
    display: none;
  }
}

.radial-bar {
  position: fixed;
  bottom: 62px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.3s ease 0.3s,
    transform 0.3s ease 0.3s;
}
.radial.open .radial-bar {
  opacity: 1;
  transform: translateY(0);
}
.rb {
  min-height: 40px;
  padding: 10px 20px;
  border: 1px solid var(--cyanM);
  border-radius: 999px;
  background: rgba(4, 8, 16, 0.7);
  color: var(--cyan);
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition:
    background 0.2s,
    color 0.2s,
    border-color 0.2s;
}
.rb:hover,
.rb:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--void);
}

/* ══════════════════════════════════════════════════════════════
   TUBELIGHT NAVBAR — üst bar (dil + iletişim)
   Kayan ışık, üzerine gelinen/aktif öğeye kayar.
   ══════════════════════════════════════════════════════════════ */
.tubelight {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid rgba(0, 200, 240, 0.16);
  background: rgba(5, 12, 22, 0.66);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
  box-shadow:
    0 12px 34px -14px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  isolation: isolate;
  flex: 0 0 auto;
}
.tubelight-glow {
  position: absolute;
  top: 5px;
  left: 5px;
  height: calc(100% - 10px);
  width: 0;
  border-radius: 999px;
  background: radial-gradient(
    ellipse 62% 150% at 50% 100%,
    rgba(0, 200, 240, 0.62),
    rgba(0, 200, 240, 0.18) 55%,
    transparent 78%
  );
  filter: blur(7px);
  opacity: 0;
  z-index: 0;
  pointer-events: none;
  transition:
    transform 0.5s cubic-bezier(0.34, 1.2, 0.44, 1),
    width 0.5s cubic-bezier(0.34, 1.2, 0.44, 1),
    opacity 0.3s ease;
}
.tubelight .nb,
.tubelight .nav-cta {
  position: relative;
  z-index: 1;
  min-height: 34px;
  padding: 0 18px;
  border: none;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  transition:
    color 0.3s ease,
    background 0.3s ease;
}
.tubelight .nb:hover,
.tubelight .nav-cta:hover,
.tubelight .nb:focus-visible,
.tubelight .nav-cta:focus-visible {
  color: var(--text);
  background: none;
}
.tubelight .on {
  color: #fff;
}
.tubelight .on::after {
  content: "";
  position: absolute;
  left: 20%;
  right: 20%;
  bottom: 2px;
  height: 1.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 10px 1px rgba(0, 200, 240, 0.75);
}
@media (max-width: 1100px) {
  .tubelight .nav-cta {
    display: inline-flex;
  }
}
@media (max-width: 520px) {
  .tubelight {
    padding: 4px;
    gap: 0;
  }
  .tubelight .nb,
  .tubelight .nav-cta {
    min-height: 32px;
    padding: 0 12px;
    font-size: 9px;
    letter-spacing: 1.4px;
  }
  .tubelight .on::after {
    left: 24%;
    right: 24%;
  }
}

/* Dar ekran: logo 200px'e kadar yer kaplıyordu, burger 390'a taşıyordu */
@media (max-width: 520px) {
  .nav-inner {
    padding: 0 16px;
  }
  .nav-logo {
    font-size: 15px;
    letter-spacing: 1px;
    gap: 8px;
  }
  .nav-mark {
    width: 23px;
    height: 23px;
  }
}

/* ══ Çok satırlı büyük başlıklar ══
   .sec-h2 / .contact-h2 span'ları display:block, yani zaten
   satır kırıyor. Aralarındaki <br> ek bir boş satır kutusu
   üretiyordu: 44px fontta 46px, 52px fontta 52px boşluk.
   <br>'yi kapatınca aradaki boşluk normal satır aralığına
   düşüyor, satır kırılması span'lar tarafından korunuyor. */
.sec-h2 br,
.contact-h2 br {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  #entropy-bg {
    display: none;
  }
}

/* Bölüm yüzeyleri yarı saydam -> akış alanı her yerde görünür.
   --deep/--surface yalnızca background decl. içinde kullanılıyor;
   --void dokunulmadı (buton metni rengi olarak da kullanılıyor). */
:root {
  --deep: rgba(7, 17, 31, 0.72);
  --surface: rgba(13, 31, 53, 0.66);
}
/* --void ile boyanan yüzeyler de hafif saydamlaşsın */
.domains,
.method,
.founder,
.cg-item {
  background: rgba(2, 8, 16, 0.72);
}
/* Kartların okunabilirliği için yüzeyin üstüne ince bir perde */
.about,
.domains,
.method,
.founder,
.cg-item {
  -webkit-backdrop-filter: saturate(115%);
  backdrop-filter: saturate(115%);
}