/* ═══════════════════════════════════════════════════
   QUANTRO LAB — sayfa stili
   Temel (reset/token/body/KVKK): css/base.css
   ═══════════════════════════════════════════════════ */

/* ── BG ── */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.bg-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 8% 6%, rgba(255, 255, 255, 0.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 14%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 5%, rgba(200, 230, 255, 0.8) 0%, transparent 100%),
    radial-gradient(1px 1px at 78% 11%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 92% 20%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 12% 42%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 65% 38%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 55%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 35% 70%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 72% 80%, rgba(200, 220, 255, 0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 18% 88%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 94%, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
}
.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 200, 240, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 200, 240, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
}
.bg-neb {
  position: absolute;
  width: 600px;
  height: 600px;
  top: -100px;
  right: -100px;
  background: radial-gradient(
    ellipse at 50% 50%,
    rgba(0, 80, 200, 0.15) 0%,
    rgba(60, 0, 160, 0.08) 45%,
    transparent 70%
  );
  border-radius: 50%;
  filter: blur(60px);
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 22px 0;
  transition:
    background 0.4s,
    padding 0.3s;
}
nav.sc {
  background: rgba(2, 8, 16, 0.92);
  backdrop-filter: blur(20px);
  padding: 13px 0;
  border-bottom: 1px solid rgba(0, 200, 240, 0.07);
}
.ni {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nl {
  font-family: var(--fd);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
}
.nl em {
  color: var(--cyan);
  font-style: normal;
}
.nb {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyanM);
  padding: 9px 18px;
  text-decoration: none;
  transition:
    background 0.2s,
    color 0.2s;
}
.nb:hover {
  background: var(--cyan);
  color: var(--void);
}

/* ── HERO ── */
#hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, transparent 30%, rgba(2, 8, 16, 0.55) 100%),
    linear-gradient(
      to bottom,
      rgba(2, 8, 16, 0.2) 0%,
      transparent 20%,
      transparent 70%,
      rgba(2, 8, 16, 1) 100%
    );
  pointer-events: none;
  z-index: 2;
}
.hud {
  position: absolute;
  z-index: 3;
  width: 30px;
  height: 30px;
}
.hud-tl {
  top: 20px;
  left: 20px;
  border-top: 1.5px solid rgba(0, 200, 240, 0.45);
  border-left: 1.5px solid rgba(0, 200, 240, 0.45);
}
.hud-tr {
  top: 20px;
  right: 20px;
  border-top: 1.5px solid rgba(0, 200, 240, 0.45);
  border-right: 1.5px solid rgba(0, 200, 240, 0.45);
}
.hud-bl {
  bottom: 20px;
  left: 20px;
  border-bottom: 1.5px solid rgba(0, 200, 240, 0.45);
  border-left: 1.5px solid rgba(0, 200, 240, 0.45);
}
.hud-br {
  bottom: 20px;
  right: 20px;
  border-bottom: 1.5px solid rgba(0, 200, 240, 0.45);
  border-right: 1.5px solid rgba(0, 200, 240, 0.45);
}
.hero-content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 80px;
}
.hc {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}
.hero-ey {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.hero-ey::before {
  content: "";
  display: block;
  width: 32px;
  height: 1px;
  background: var(--cyan);
}
.hero-ey 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, 8vw, 100px);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -2px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-h1 .o {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  display: block;
}
.hero-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-desc {
  font-size: 14px;
  font-weight: 300;
  color: rgba(232, 237, 245, 0.66);
  line-height: 1.85;
  max-width: 400px;
}
.hero-badge {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid rgba(0, 240, 160, 0.2);
  padding: 8px 18px;
  white-space: nowrap;
  max-width: 100%;
}
[data-i18n] {
  overflow-wrap: break-word;
}
.tool-title,
.hero-h1 span,
.hero-sub,
.step-lbl,
.lbl,
.opt-lbl,
.stat-lbl,
.stat-num,
.md-lbl,
.md-val,
.tool-note {
  overflow-wrap: break-word;
}
.scroll-ind {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}
.scroll-ind span {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  color: rgba(232, 237, 245, 0.25);
  text-transform: uppercase;
}
.scroll-ln {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(0, 200, 240, 0.5), transparent);
  animation: sp 2s ease-in-out infinite;
}
@keyframes sp {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

/* ── TOOLS ── */
.tools {
  position: relative;
  z-index: 1;
  padding: 0 0 100px;
}
.tw {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}
.tools-intro {
  padding: 60px 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
}
.tools-intro h2 {
  font-family: var(--fd);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  text-transform: uppercase;
}
.tools-count {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
}
.tool-card {
  background: var(--deep);
  border: 1px solid rgba(0, 200, 240, 0.08);
  margin-bottom: 3px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.tool-card:hover {
  border-color: rgba(0, 200, 240, 0.18);
}
.tool-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}
.tool-header:hover {
  background: rgba(0, 200, 240, 0.03);
}
.tn {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--cyan);
  opacity: 0.5;
  width: 24px;
  flex-shrink: 0;
}
.tt {
  font-family: var(--fd);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  flex: 1;
}
.tb-badge {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid;
}
.tb-badge.first {
  color: var(--green);
  border-color: rgba(0, 240, 160, 0.2);
}
.tb-badge.new {
  color: var(--gold);
  border-color: rgba(240, 192, 64, 0.2);
}
.tg {
  font-family: var(--fm);
  font-size: 20px;
  color: var(--cyan);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.tg.open {
  transform: rotate(45deg);
}
.tool-body {
  display: none;
  padding: 32px;
  border-top: 1px solid rgba(0, 200, 240, 0.06);
}
.tool-body[data-busy] {
  opacity: 0.4;
  pointer-events: none;
}
.tool-body.open {
  display: block;
}

/* ── SHARED COMPONENTS ── */
.btn {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  padding: 11px 24px;
  transition:
    opacity 0.2s,
    transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}
.btn-p {
  background: var(--cyan);
  color: var(--void);
  font-weight: 700;
}
.btn-g {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--subtle);
}
.btn-g:hover {
  border-color: var(--cyanM);
  color: var(--cyan);
}
.btn-r {
  background: transparent;
  color: var(--red);
  border: 1px solid rgba(255, 68, 102, 0.2);
}
.explain {
  margin-top: 20px;
  padding: 18px;
  background: rgba(0, 200, 240, 0.03);
  border-left: 2px solid var(--cyan);
}
.explain p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
}
.explain strong {
  color: var(--cyan);
}
.canvas3d {
  width: 100%;
  height: 280px;
  display: block;
  cursor: grab;
}
.canvas3d:active {
  cursor: grabbing;
}

/* ── T1: QRNG ── */
.qrng-display {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 36px;
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}
.qrng-num {
  font-family: var(--fm);
  font-size: clamp(40px, 8vw, 72px);
  color: var(--cyan);
  letter-spacing: 4px;
  line-height: 1;
  text-shadow: 0 0 40px rgba(0, 200, 240, 0.4);
  transition: all 0.1s;
}
.qrng-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 10px;
}
.qwave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: qsw 2s linear infinite;
}
@keyframes qsw {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}
.qrng-ctrl {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 16px;
}
.qin {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.15);
  color: var(--text);
  font-family: var(--fm);
  font-size: 13px;
  padding: 8px 12px;
  width: 90px;
}
.qin:focus {
  outline: none;
  border-color: var(--cyan);
}
.qlbl {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.qhist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.qhi {
  font-family: var(--fm);
  font-size: 11px;
  color: rgba(0, 200, 240, 0.5);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 3px 9px;
}

/* ── T1: CHI-SQUARE ── */
.qstats {
  margin-top: 14px;
  padding: 18px;
  background: rgba(0, 240, 160, 0.03);
  border: 1px solid rgba(0, 240, 160, 0.12);
}
.qstats-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 8px;
}
.qbars {
  display: flex;
  gap: 4px;
  align-items: flex-end;
  height: 132px;
  margin-bottom: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.qbar {
  flex: 1;
  min-width: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.qbar-f {
  width: 100%;
  background: linear-gradient(to top, var(--cyan), rgba(0, 200, 240, 0.25));
  border-radius: 2px;
  min-height: 2px;
}
.qbar-l {
  font-family: var(--fm);
  font-size: 8px;
  color: var(--muted);
}
.qbar-v {
  font-family: var(--fm);
  font-size: 9px;
  color: var(--text);
}
.qstats-text {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
}

/* ── T8: TELEPORT ── */
.tele-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.tele-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tele-log {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 16px;
  font-family: var(--fm);
  font-size: 12px;
  line-height: 1.9;
  max-height: 340px;
  overflow-y: auto;
}
.tele-line {
  color: rgba(232, 237, 245, 0.75);
  animation: qin 0.3s ease-out;
  white-space: pre-wrap;
}
.tele-line b {
  color: var(--cyan);
}
.tele-line.ok {
  color: var(--green);
}
@keyframes qin {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── T9: BLOCH SPHERE ── */
.bloch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.bloch-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.bloch-canvas {
  width: 100%;
  height: 320px;
  display: block;
  touch-action: none;
  cursor: grab;
}
.bloch-canvas:active {
  cursor: grabbing;
}
.bloch-sliders {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.bloch-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.bloch-readout {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 16px;
  font-family: var(--fm);
  font-size: 12px;
  line-height: 2;
  color: var(--muted);
}
.bloch-readout b {
  color: var(--cyan);
}

/* ── T10: SCHRODINGER CAT ── */
.cat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.cat-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.cat-canvas {
  width: 100%;
  height: 380px;
  display: block;
}
.cat-readout {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 16px;
  font-family: var(--fm);
  font-size: 12px;
  line-height: 2;
  color: var(--muted);
  margin-top: 16px;
}
.cat-readout b {
  color: var(--cyan);
}
.cat-log {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 12px;
  margin-top: 12px;
  font-family: var(--fm);
  font-size: 10px;
  color: var(--muted);
  line-height: 1.8;
}
.cat-log span {
  color: var(--cyan);
}
.cat-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ── T11: TUNNELING ── */
.tun-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.tun-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.tun-canvas {
  width: 100%;
  height: 320px;
  display: block;
}
.tun-res {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 20px;
  text-align: center;
  margin-top: 14px;
}

/* ── T13: QUANTUM WALK ── */
.qw-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.qw-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.qw-canvas {
  width: 100%;
  height: 320px;
  display: block;
  touch-action: none;
}
.tun-t {
  font-family: var(--fd);
  font-size: 34px;
  font-weight: 800;
  color: var(--cyan);
}
.tun-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 4px;
}
.tun-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

/* ── T12: DOUBLE SLIT ── */
.ds-wrap {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
}
.ds-canvas-wrap {
  position: relative;
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.ds-canvas {
  width: 100%;
  height: auto;
  display: block;
  touch-action: none;
}
.ds-stat {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(4, 13, 26, 0.85);
  border: 1px solid rgba(0, 200, 240, 0.2);
  padding: 8px 12px;
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
}
.ds-count {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(4, 13, 26, 0.85);
  border: 1px solid rgba(0, 200, 240, 0.2);
  padding: 8px 12px;
  font-family: var(--fm);
  font-size: 11px;
  color: var(--muted);
}
.ds-count b {
  color: var(--cyan);
}
.ds-which {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0;
}
.ds-check {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.ds-check input {
  accent-color: var(--cyan);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.ds-btns {
  display: flex;
  gap: 10px;
}
.ds-btns .btn {
  flex: 1;
  text-align: center;
}
.ds-trail {
  position: absolute;
  pointer-events: none;
}

/* ── T2: CIRCUIT ── */
.circ-wrap {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
}
.gate-panel h4 {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.gate-btn {
  width: 100%;
  font-family: var(--fm);
  font-size: 11px;
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.12);
  color: var(--cyan);
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  display: flex;
  justify-content: space-between;
  transition: background 0.2s;
  margin-bottom: 6px;
}
.gate-btn:hover {
  background: rgba(0, 200, 240, 0.08);
  border-color: var(--cyan);
}
.gate-btn .gd {
  font-size: 9px;
  color: var(--muted);
}
.circ-area {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 18px;
  min-height: 240px;
}
.clane {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 28px;
}
.clane-lbl {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--muted);
  width: 28px;
  flex-shrink: 0;
}
.clane-line {
  flex: 1;
  height: 1px;
  background: rgba(0, 200, 240, 0.2);
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
}
.gel {
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--cyan);
  background: var(--deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fm);
  font-size: 10px;
  color: var(--cyan);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  top: -17px;
  transition: background 0.2s;
}
.gel:hover {
  background: rgba(0, 200, 240, 0.15);
}
.gel.X {
  border-color: var(--red);
  color: var(--red);
}
.gel.Z {
  border-color: var(--purple);
  color: var(--purple);
}
.gel.CNOT {
  border-color: var(--green);
  color: var(--green);
  width: auto;
  padding: 0 6px;
}
.cr-bars {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  height: 70px;
  margin-top: 12px;
}
.crb-w {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.crb {
  width: 100%;
  background: rgba(0, 200, 240, 0.15);
  transition: height 0.5s;
  min-height: 3px;
}
.crb.active {
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(0, 200, 240, 0.4);
}
.crb-lbl {
  font-family: var(--fm);
  font-size: 9px;
  color: var(--muted);
}
.crb-val {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--cyan);
}

/* ── T3: UNIVERSE ── */
.univ-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.param-item {
  margin-bottom: 16px;
}
.param-lbl {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}
.param-lbl span {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.param-lbl strong {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--cyan);
}
.slider {
  width: 100%;
  -webkit-appearance: none;
  height: 2px;
  background: rgba(0, 200, 240, 0.2);
  outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(0, 200, 240, 0.5);
}
.univ-res {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 28px;
  text-align: center;
}
.univ-age {
  font-family: var(--fd);
  font-size: clamp(36px, 6vw, 52px);
  font-weight: 800;
  line-height: 1;
}
.univ-age span {
  font-size: 18px;
  color: var(--cyan);
}
.univ-age-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 8px 0 20px;
}
.upd {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px solid rgba(0, 200, 240, 0.05);
}
.upd-k {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--muted);
}
.upd-v {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--cyan);
}
.utl-item {
  display: flex;
  gap: 10px;
  padding: 7px 10px;
  border-left: 2px solid transparent;
  transition: border-color 0.3s;
  margin-bottom: 2px;
}
.utl-item:hover {
  border-color: var(--cyan);
}
.utl-t {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--cyan);
  width: 90px;
  flex-shrink: 0;
}
.utl-d {
  font-size: 12px;
  color: var(--muted);
}

/* ── T4: QKD ── */
.qkd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.qkd-party {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 20px;
}
.qkd-party h4 {
  font-family: var(--fd);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.qkd-party h4 em {
  color: var(--cyan);
  font-style: normal;
}
.qkd-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
  margin-top: 10px;
}
.qbits {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  min-height: 40px;
}
.qbit {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(0, 200, 240, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fm);
  font-size: 10px;
  color: var(--muted);
  transition: all 0.3s;
}
.qbit.sent {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 200, 240, 0.06);
}
.qbit.match {
  border-color: var(--green);
  color: var(--green);
  background: rgba(0, 240, 160, 0.06);
}
.qbit.mismatch {
  border-color: var(--red);
  color: var(--red);
  background: rgba(255, 68, 102, 0.06);
}
.qkd-key {
  font-family: var(--fm);
  font-size: 13px;
  color: var(--green);
  letter-spacing: 3px;
  min-height: 18px;
}
.eve-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: rgba(160, 96, 255, 0.05);
  border: 1px solid rgba(160, 96, 255, 0.12);
  margin-bottom: 14px;
}
.eve-toggle label {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--purple);
  cursor: pointer;
}
input[type="checkbox"] {
  accent-color: var(--purple);
  width: 14px;
  height: 14px;
  cursor: pointer;
}
.sec-bar {
  flex: 1;
  height: 3px;
  background: rgba(0, 200, 240, 0.1);
}
.sec-fill {
  height: 100%;
  transition:
    width 0.8s,
    background 0.8s;
}
.sec-pct {
  font-family: var(--fm);
  font-size: 12px;
}
.qkd-log {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.06);
  padding: 14px;
  max-height: 150px;
  overflow-y: auto;
  margin-top: 14px;
}
.qkd-log p {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
  border-bottom: 1px solid rgba(0, 200, 240, 0.03);
  padding: 1px 0;
}
.qkd-log p.ok {
  color: var(--green);
}
.qkd-log p.err {
  color: var(--red);
}
.qkd-log p.warn {
  color: var(--purple);
}

/* ── T5: HEISENBERG VISUALIZER ── */
.heis-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.heis-param {
  margin-bottom: 16px;
}
.heis-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.heis-result {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 24px;
  margin-top: 16px;
}
.heis-eq {
  font-family: var(--fm);
  font-size: 20px;
  color: var(--cyan);
  text-align: center;
  margin-bottom: 16px;
}
.heis-vals {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}
.hv-item {
  text-align: center;
  padding: 12px;
  background: rgba(0, 200, 240, 0.03);
  border: 1px solid rgba(0, 200, 240, 0.07);
}
.hv-val {
  font-family: var(--fm);
  font-size: 16px;
  color: var(--cyan);
  margin-bottom: 4px;
}
.hv-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.heis-status {
  text-align: center;
  font-family: var(--fm);
  font-size: 11px;
  margin-top: 12px;
  padding: 10px;
  border: 1px solid;
}

/* ── T6: BLACKHOLE VISUALIZER ── */
.bh-wrap {
  position: relative;
}
.bh-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.bh-stat {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.08);
  padding: 14px;
  text-align: center;
}
.bh-stat-val {
  font-family: var(--fm);
  font-size: 18px;
  color: var(--cyan);
  margin-bottom: 4px;
}
.bh-stat-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.bh-ctrl {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.bh-ctrl label {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── T7: DOPPLER ── */
.dop-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.dop-canvas-wrap {
  background: var(--void);
  border: 1px solid rgba(0, 200, 240, 0.1);
  padding: 8px;
}
.dop-result {
  padding: 20px;
  background: rgba(0, 200, 240, 0.03);
  border: 1px solid rgba(0, 200, 240, 0.08);
}
.dop-val {
  font-family: var(--fd);
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
}
.dop-val span {
  font-size: 16px;
  color: var(--cyan);
}
.dop-lbl {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.dop-shift {
  display: flex;
  gap: 0;
  margin-top: 16px;
  height: 36px;
  overflow: hidden;
}
.dop-blue {
  flex: 1;
  background: linear-gradient(to right, transparent, rgba(0, 100, 255, 0.6));
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-family: var(--fm);
  font-size: 10px;
  color: #6699ff;
}
.dop-red {
  flex: 1;
  background: linear-gradient(to right, rgba(255, 60, 60, 0.6), transparent);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 12px;
  font-family: var(--fm);
  font-size: 10px;
  color: #ff6666;
}

/* ── FOOTER ── */
footer {
  background: var(--deep);
  border-top: 1px solid rgba(0, 200, 240, 0.07);
  padding: 36px 0;
  position: relative;
  z-index: 1;
}
.fi {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.fl {
  font-family: var(--fd);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}
.fl em {
  color: var(--cyan);
  font-style: normal;
}
.fc {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .ni {
    padding: 0 20px;
  }
  .tw {
    padding: 0 20px;
  }
  .hc {
    padding: 0 20px;
  }
  .tool-header {
    padding: 18px 20px;
  }
  .tool-body {
    padding: 20px;
  }
  .hero-badge {
    white-space: normal;
    text-align: center;
    line-height: 1.4;
  }
  .hero-h1 {
    font-size: clamp(36px, 10vw, 64px);
  }
  .hero-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .circ-wrap {
    grid-template-columns: 1fr;
  }
  .univ-grid,
  .heis-wrap,
  .dop-wrap,
  .bloch-grid,
  .cat-grid,
  .tun-grid {
    grid-template-columns: 1fr;
  }
  .qkd-grid {
    grid-template-columns: 1fr;
  }
  .bh-info {
    grid-template-columns: 1fr 1fr;
  }
  .heis-vals {
    grid-template-columns: 1fr 1fr;
  }
  .fi {
    padding: 0 20px;
  }
  .canvas3d {
    height: 200px;
  }
  .tools-intro {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ── QLAB · Paylaşımlı profesyonel katman ── */
.tool-body {
  position: relative;
}
.heis-canvas-wrap,
.dop-canvas-wrap,
.bloch-canvas-wrap,
.cat-canvas-wrap,
.tun-canvas-wrap,
.qw-canvas-wrap {
  position: relative;
}
.qlab-xp {
  position: absolute;
  bottom: 10px;
  right: 10px;
  z-index: 6;
  background: rgba(4, 13, 26, 0.72);
  border: 1px solid rgba(0, 200, 240, 0.22);
  color: var(--cyan);
  font-family: var(--fm);
  font-size: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 10px;
  cursor: pointer;
  transition:
    background 0.2s,
    border-color 0.2s;
}
.qlab-xp:hover {
  background: rgba(0, 200, 240, 0.16);
  border-color: var(--cyan);
}
.qlab-toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translate(-50%, 14px);
  z-index: 999;
  background: rgba(2, 8, 16, 0.95);
  border: 1px solid rgba(0, 240, 160, 0.3);
  color: var(--green);
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 10px 18px;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.25s,
    transform 0.25s;
}
.qlab-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
.qrng-num {
  cursor: pointer;
}
.qrng-num:hover {
  text-shadow: 0 0 60px rgba(0, 200, 240, 0.65);
}
.qbar {
  position: relative;
}
.qbar-exp {
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 60px;
  border-top: 1px dashed rgba(0, 240, 160, 0.45);
  pointer-events: none;
}
.crb-w {
  position: relative;
}
.crb-track {
  position: relative;
  width: 100%;
  height: 60px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.crb-exp {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  border-top: 1.5px dashed rgba(0, 240, 160, 0.5);
  pointer-events: none;
}
.crb-pct {
  font-family: var(--fm);
  font-size: 9px;
  color: var(--green);
}
.cr-exact {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 12px;
  align-items: baseline;
}
.crx-sep {
  opacity: 0.35;
}
.explain {
  transition: border-color 0.2s;
}
.explain:hover {
  border-color: var(--cyan);
}