/* ── Reset & Base ─────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #38E0D3;
  --primary-dark: #2bc4b8;
  --accent: #316BF5;
  --bg-deep: #091122;
  --bg-card: #10254E;
  --bg-card-hover: #152d5e;
  --bg-alt: #0c1a38;
  --text: #e8edf5;
  --text-muted: #8a9bc0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 30px rgba(0, 0, 0, .35);
  --transition: .25s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

body.language-fa {
  font-family: 'Vazirmatn', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body.rtl {
  direction: rtl;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ──────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(9, 17, 34, .85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(56, 224, 211, .08);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
}

.brand-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  padding: 7px 10px;
  border-radius: 999px;
  font: inherit;
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.is-active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: .9rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 224, 211, .25);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 1rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: .85rem;
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(56, 224, 211, .4);
  color: var(--primary);
}

.btn-outline:hover {
  background: rgba(56, 224, 211, .1);
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(56, 224, 211, .12);
}

/* ── Hero ────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(56, 224, 211, .15), transparent),
    radial-gradient(ellipse 60% 40% at 70% 80%, rgba(49, 107, 245, .1), transparent);
  pointer-events: none;
}

.hero-content { position: relative; max-width: 1180px; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
  align-items: center;
  gap: 44px;
  margin-bottom: 42px;
}

.hero-copy {
  text-align: left;
}

.hero-content-wide {
  max-width: 860px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 50px;
  background: rgba(56, 224, 211, .1);
  border: 1px solid rgba(56, 224, 211, .2);
  font-size: .85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 0 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stage {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-cluster {
  position: relative;
  width: 100%;
  max-width: 620px;
  min-height: 560px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  --robot-look-x: 0px;
  --robot-look-y: 0px;
  --robot-head-tilt: 0deg;
  --left-arm-angle: -28deg;
  --left-arm-length: 78px;
  --right-arm-angle: 28deg;
  --right-arm-length: 78px;
  --feature-x: 0px;
  --feature-y: 0px;
  --feature-scale: 1;
}

.hero-orbit {
  position: absolute;
  inset: 0;
  margin: auto;
  border-radius: 50%;
  border: 1px solid rgba(56, 224, 211, .15);
  box-shadow: inset 0 0 40px rgba(56, 224, 211, .04);
  animation: slowSpin 18s linear infinite;
}

.hero-orbit-one {
  width: 430px;
  height: 430px;
}

.hero-orbit-two {
  width: 330px;
  height: 330px;
  border-color: rgba(49, 107, 245, .18);
  animation-direction: reverse;
  animation-duration: 24s;
}

.hero-orbit-three {
  width: 222px;
  height: 222px;
  border-style: dashed;
  border-color: rgba(255, 255, 255, .1);
  animation-duration: 30s;
}

.hero-signal {
  position: absolute;
  border-radius: 999px;
  opacity: .22;
}

.hero-signal-one {
  width: 180px;
  height: 180px;
  top: 92px;
  left: 132px;
  border: 1px solid rgba(56, 224, 211, .14);
}

.hero-signal-two {
  width: 256px;
  height: 256px;
  bottom: 76px;
  right: 100px;
  border: 1px solid rgba(49, 107, 245, .12);
}

.robot-card {
  position: relative;
  width: 286px;
  height: 388px;
  --robot-upgrade: 0;
  border-radius: 40px;
  background:
    radial-gradient(circle at 50% 8%, rgba(56, 224, 211, .18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02)),
    linear-gradient(160deg, rgba(11, 23, 49, .98), rgba(18, 40, 86, .9));
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 32px 90px rgba(3, 10, 24, .6);
  overflow: hidden;
  animation: robotFloat 5.8s ease-in-out infinite;
}

.robot-card-glow {
  position: absolute;
  inset: 14px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(56, 224, 211, .09), rgba(49, 107, 245, .03));
  filter: blur(2px);
}

.robot-crown {
  position: absolute;
  top: 24px;
  left: 50%;
  z-index: 2;
  display: flex;
  padding: 18px 16px;
  transform: translateX(-50%);
}

.robot-crown-dot {
  width: 8px;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #d9fffc, #38e0d3);
  box-shadow: 0 0 16px rgba(56, 224, 211, .65);
}

.robot-head,
.robot-body,
.robot-neck {
  position: relative;
  margin: 0 auto;
  z-index: 1;
}

.robot-head {
  width: 162px;
  height: 126px;
  margin-top: 58px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(228, 246, 255, .9), rgba(168, 218, 255, .84));
  box-shadow: inset 0 -12px 20px rgba(49, 107, 245, .14);
  transform: rotate(var(--robot-head-tilt));
  transform-origin: 50% 72%;
  transition: background .35s ease, box-shadow .35s ease, border-radius .35s ease;
}

.robot-antenna {
  position: absolute;
  top: -22px;
  left: 50%;
  width: 4px;
  height: 22px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #88f6eb, #4c7ef8);
}

.robot-antenna::after {
  content: '';
  position: absolute;
  top: -10px;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, #d9fffc, #38e0d3);
  box-shadow: 0 0 18px rgba(56, 224, 211, .8);
}

.robot-brow,
.robot-eye,
.robot-mouth,
.robot-smile,
.robot-core,
.robot-line {
  position: absolute;
}

.robot-brow {
  top: 35px;
  width: 28px;
  height: 5px;
  border-radius: 999px;
  background: rgba(20, 53, 92, .22);
  opacity: .18;
  transition: transform .35s ease, opacity .35s ease, background .35s ease, box-shadow .35s ease;
}

.robot-brow-left {
  left: 31px;
  transform: rotate(12deg);
}

.robot-brow-right {
  right: 31px;
  transform: rotate(-12deg);
}

.robot-eye {
  top: 45px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 45% 45%, #ffffff, #38e0d3 58%, #316bf5 100%);
  box-shadow: 0 0 14px rgba(56, 224, 211, .6);
  animation: blinkGlow 4s ease-in-out infinite;
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease, width .35s ease, height .35s ease;
}

.robot-eye-left {
  top: 47px;
  left: 36px;
  width: 20px;
  height: 22px;
}

.robot-eye-right {
  top: 47px;
  right: 36px;
  width: 20px;
  height: 22px;
  animation-delay: .25s;
}

.robot-pupil {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #12304f, #07172d 75%);
  box-shadow: 0 0 8px rgba(6, 20, 38, .45);
  transform: translate(calc(-50% + var(--robot-look-x)), calc(-50% + var(--robot-look-y)));
}

.robot-mouth {
  left: 50%;
  bottom: 21px;
  width: 50px;
  height: 10px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(38, 98, 158, .18), rgba(56, 224, 211, .74));
  box-shadow: inset 0 -4px 10px rgba(6, 17, 34, .28);
  transition: width .35s ease, height .35s ease, border-radius .35s ease, background .35s ease, box-shadow .35s ease;
}

.robot-smile {
  left: 50%;
  bottom: 14px;
  width: 54px;
  height: 24px;
  opacity: 0;
  overflow: hidden;
  transform: translateX(-50%) scale(.72);
  transition: opacity .35s ease, transform .35s ease;
}

.robot-smile::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 34px;
  height: 16px;
  transform: translateX(-50%);
  border-bottom: 4px solid rgba(56, 224, 211, .98);
  border-radius: 0 0 999px 999px;
  box-shadow: 0 8px 16px rgba(56, 224, 211, .2);
}

.robot-mouth.is-chewing {
  animation: chew 190ms ease-in-out infinite alternate;
}

.robot-mouth.is-chewing + .robot-smile {
  opacity: 0;
  transform: translateX(-50%) scale(.72);
}

.robot-card[data-upgrade-step="1"] .robot-head,
.robot-card[data-upgrade-step="2"] .robot-head,
.robot-card[data-upgrade-step="3"] .robot-head,
.robot-card[data-upgrade-step="4"] .robot-head,
.robot-card[data-upgrade-step="5"] .robot-head,
.robot-card[data-upgrade-step="6"] .robot-head,
.robot-card.is-smarter .robot-head {
  border-radius: 28px 28px 40px 40px;
  background: linear-gradient(180deg, rgba(244, 251, 255, .98), rgba(182, 229, 255, .9));
  box-shadow: inset 0 -10px 18px rgba(49, 107, 245, .18), 0 0 24px rgba(56, 224, 211, .16);
}

.robot-card[data-upgrade-step="1"] .robot-brow,
.robot-card[data-upgrade-step="2"] .robot-brow,
.robot-card[data-upgrade-step="3"] .robot-brow,
.robot-card[data-upgrade-step="4"] .robot-brow,
.robot-card[data-upgrade-step="5"] .robot-brow,
.robot-card[data-upgrade-step="6"] .robot-brow,
.robot-card.is-smarter .robot-brow {
  opacity: .9;
  background: linear-gradient(90deg, rgba(25, 73, 119, .95), rgba(56, 224, 211, .75));
  box-shadow: 0 0 10px rgba(56, 224, 211, .22);
}

.robot-card[data-upgrade-step="1"] .robot-brow-left { transform: rotate(8deg) translateY(-1px); }
.robot-card[data-upgrade-step="1"] .robot-brow-right { transform: rotate(-8deg) translateY(-1px); }

.robot-card[data-upgrade-step="2"] .robot-brow-left,
.robot-card[data-upgrade-step="3"] .robot-brow-left,
.robot-card[data-upgrade-step="4"] .robot-brow-left,
.robot-card[data-upgrade-step="5"] .robot-brow-left,
.robot-card[data-upgrade-step="6"] .robot-brow-left,
.robot-card.is-smarter .robot-brow-left {
  width: 32px;
  left: 30px;
  transform: rotate(-8deg) translateY(-2px);
}

.robot-card[data-upgrade-step="2"] .robot-brow-right,
.robot-card[data-upgrade-step="3"] .robot-brow-right,
.robot-card[data-upgrade-step="4"] .robot-brow-right,
.robot-card[data-upgrade-step="5"] .robot-brow-right,
.robot-card[data-upgrade-step="6"] .robot-brow-right,
.robot-card.is-smarter .robot-brow-right {
  width: 32px;
  right: 30px;
  transform: rotate(8deg) translateY(-2px);
}

.robot-card[data-upgrade-step="2"] .robot-eye,
.robot-card[data-upgrade-step="3"] .robot-eye,
.robot-card[data-upgrade-step="4"] .robot-eye,
.robot-card[data-upgrade-step="5"] .robot-eye,
.robot-card[data-upgrade-step="6"] .robot-eye,
.robot-card.is-smarter .robot-eye {
  top: 44px;
  width: 24px;
  height: 24px;
  box-shadow: 0 0 18px rgba(56, 224, 211, .8);
}

.robot-card[data-upgrade-step="2"] .robot-eye-left,
.robot-card[data-upgrade-step="3"] .robot-eye-left,
.robot-card[data-upgrade-step="4"] .robot-eye-left,
.robot-card[data-upgrade-step="5"] .robot-eye-left,
.robot-card[data-upgrade-step="6"] .robot-eye-left,
.robot-card.is-smarter .robot-eye-left {
  left: 39px;
}

.robot-card[data-upgrade-step="2"] .robot-eye-right,
.robot-card[data-upgrade-step="3"] .robot-eye-right,
.robot-card[data-upgrade-step="4"] .robot-eye-right,
.robot-card[data-upgrade-step="5"] .robot-eye-right,
.robot-card[data-upgrade-step="6"] .robot-eye-right,
.robot-card.is-smarter .robot-eye-right {
  right: 39px;
}

.robot-card[data-upgrade-step="3"] .robot-pupil,
.robot-card[data-upgrade-step="4"] .robot-pupil,
.robot-card[data-upgrade-step="5"] .robot-pupil,
.robot-card[data-upgrade-step="6"] .robot-pupil,
.robot-card.is-smarter .robot-pupil {
  background: radial-gradient(circle at 35% 35%, #0f2741, #020c18 75%);
  box-shadow: 0 0 10px rgba(3, 12, 24, .55);
}

.robot-card[data-upgrade-step="2"] .robot-mouth,
.robot-card[data-upgrade-step="3"] .robot-mouth,
.robot-card[data-upgrade-step="4"] .robot-mouth,
.robot-card[data-upgrade-step="5"] .robot-mouth,
.robot-card[data-upgrade-step="6"] .robot-mouth,
.robot-card.is-smarter .robot-mouth {
  bottom: 20px;
  width: 56px;
  height: 12px;
  border-radius: 999px 999px 22px 22px;
  background: linear-gradient(180deg, rgba(49, 107, 245, .28), rgba(56, 224, 211, 1));
  box-shadow: inset 0 -4px 10px rgba(6, 17, 34, .36), 0 0 14px rgba(56, 224, 211, .22);
}

.robot-card[data-upgrade-step="4"] .robot-core,
.robot-card[data-upgrade-step="5"] .robot-core,
.robot-card[data-upgrade-step="6"] .robot-core,
.robot-card.is-smarter .robot-core {
  box-shadow: 0 0 32px rgba(56, 224, 211, .72);
}

.robot-card[data-upgrade-step="4"] .robot-smile,
.robot-card[data-upgrade-step="5"] .robot-smile,
.robot-card[data-upgrade-step="6"] .robot-smile,
.robot-card.is-smarter .robot-smile {
  opacity: .72;
  transform: translateX(-50%) scale(.9);
}

.robot-card[data-upgrade-step="5"] .robot-smile,
.robot-card[data-upgrade-step="6"] .robot-smile,
.robot-card.is-smarter .robot-smile {
  opacity: .9;
  transform: translateX(-50%) scale(1);
}

.robot-card[data-upgrade-step="6"] .robot-smile,
.robot-card.is-smarter .robot-smile {
  opacity: 1;
}

.robot-card[data-upgrade-step="6"],
.robot-card.is-smarter {
  box-shadow: 0 32px 90px rgba(3, 10, 24, .6), 0 0 38px rgba(56, 224, 211, .12);
}

.robot-card.is-celebrating .robot-head {
  border-radius: 26px 26px 42px 42px;
  background: linear-gradient(180deg, rgba(247, 252, 255, 1), rgba(190, 235, 255, .92));
  box-shadow: inset 0 -8px 16px rgba(49, 107, 245, .16), 0 0 28px rgba(56, 224, 211, .18);
}

.robot-card.is-celebrating .robot-brow-left {
  width: 34px;
  transform: rotate(-16deg) translateY(-4px);
}

.robot-card.is-celebrating .robot-brow-right {
  width: 34px;
  transform: rotate(16deg) translateY(-4px);
}

.robot-card.is-celebrating .robot-eye {
  top: 43px;
  width: 25px;
  height: 25px;
  box-shadow: 0 0 20px rgba(56, 224, 211, .88);
}

.robot-card.is-celebrating .robot-mouth {
  opacity: 1;
  width: 66px;
  height: 18px;
  bottom: 18px;
  border-radius: 999px 999px 30px 30px;
}

.robot-card.is-celebrating .robot-crown-dot {
  box-shadow: 0 0 20px rgba(56, 224, 211, .88);
}

.robot-card[data-upgrade-step] .robot-head {
  border-radius: calc(36px - var(--face-progress) * 10px) calc(36px - var(--face-progress) * 10px) calc(30px + var(--face-progress) * 14px) calc(30px + var(--face-progress) * 14px);
}

.robot-card[data-upgrade-step] .robot-brow {
  opacity: calc(.1 + var(--face-progress) * .86);
}

.robot-card[data-upgrade-step] .robot-brow-left {
  width: calc(24px + var(--face-progress) * 12px);
  transform: translateY(calc(var(--face-progress) * -6px)) rotate(calc(20deg - var(--face-progress) * 42deg));
}

.robot-card[data-upgrade-step] .robot-brow-right {
  width: calc(24px + var(--face-progress) * 12px);
  transform: translateY(calc(var(--face-progress) * -6px)) rotate(calc(-20deg + var(--face-progress) * 42deg));
}

.robot-card[data-upgrade-step] .robot-eye {
  top: calc(49px - var(--face-progress) * 7px);
  width: calc(18px + var(--face-progress) * 8px);
  height: calc(18px + var(--face-progress) * 8px);
  box-shadow: 0 0 calc(10px + var(--face-progress) * 10px) rgba(56, 224, 211, calc(.42 + var(--face-progress) * .46));
}

.robot-card[data-upgrade-step] .robot-eye-left {
  left: calc(34px + var(--face-progress) * 7px);
}

.robot-card[data-upgrade-step] .robot-eye-right {
  right: calc(34px + var(--face-progress) * 7px);
}

.robot-card[data-upgrade-step] .robot-mouth {
  bottom: calc(23px - var(--face-progress) * 3px);
  width: calc(42px + var(--face-progress) * 18px);
  height: calc(8px + var(--face-progress) * 6px);
  border-radius: 999px 999px calc(6px + var(--face-progress) * 22px) calc(6px + var(--face-progress) * 22px);
  opacity: 1;
  box-shadow: inset 0 -4px 10px rgba(6, 17, 34, .28), 0 0 calc(2px + var(--face-progress) * 12px) rgba(56, 224, 211, calc(.12 + var(--face-progress) * .24));
}

.robot-card[data-upgrade-step] .robot-smile {
  opacity: 0;
  transform: translateX(-50%) scale(.64);
}

.robot-card[data-upgrade-step].is-celebrating .robot-mouth {
  opacity: 1;
}

.robot-smile,
.robot-smile::before {
  display: none;
}

.robot-neck {
  width: 68px;
  height: 18px;
  margin-top: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .2), rgba(122, 173, 255, .12));
  border: 1px solid rgba(255, 255, 255, .14);
}

.robot-body {
  width: 194px;
  height: 118px;
  margin-top: 10px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(229, 240, 255, .2), rgba(120, 173, 255, .12));
  border: 1px solid rgba(255, 255, 255, .12);
}

.robot-arm {
  position: absolute;
  top: 44px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(56, 224, 211, .82), rgba(49, 107, 245, .58));
  box-shadow: 0 0 16px rgba(56, 224, 211, .22);
}

.robot-arm::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, #d8fffb, #38e0d3 60%, #316bf5 100%);
  box-shadow: 0 0 14px rgba(56, 224, 211, .45);
}

.robot-arm-left {
  left: 8px;
  width: var(--left-arm-length);
  transform-origin: 8px 50%;
  transform: rotate(var(--left-arm-angle));
}

.robot-arm-right {
  right: 8px;
  width: var(--right-arm-length);
  transform-origin: calc(100% - 8px) 50%;
  transform: rotate(var(--right-arm-angle)) scaleX(-1);
}

.robot-core {
  top: 24px;
  left: 50%;
  width: 48px;
  height: 48px;
  transform: translateX(-50%);
  border-radius: 18px;
  background: radial-gradient(circle at 50% 50%, #dbfffd, #38e0d3 60%, #316bf5 100%);
  box-shadow: 0 0 24px rgba(56, 224, 211, .55);
}

.robot-line {
  left: 24px;
  right: 24px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, .08), rgba(56, 224, 211, .6), rgba(255, 255, 255, .08));
}

.robot-line-one { bottom: 34px; }
.robot-line-two { bottom: 24px; opacity: .75; }
.robot-line-three { bottom: 14px; opacity: .5; }

.robot-badge {
  position: absolute;
  top: 42px;
  left: 50%;
  z-index: 3;
  transform: translateX(-50%);
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(9, 17, 34, .78);
  border: 1px solid rgba(56, 224, 211, .18);
  box-shadow: 0 16px 32px rgba(0, 0, 0, .22);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.feature-node {
  position: absolute;
  z-index: 3;
  width: 176px;
  padding: 12px 14px;
  border-radius: 999px;
  background: rgba(9, 17, 34, .8);
  border: 1px solid rgba(255, 255, 255, .07);
  box-shadow: 0 14px 24px rgba(0, 0, 0, .22);
  color: var(--text);
  font-size: .74rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transform: translate3d(var(--node-x, 0px), var(--node-y, 0px), 0) scale(var(--node-scale, 1));
  transform-origin: center;
  will-change: transform, opacity;
  transition: box-shadow .25s ease, border-color .25s ease, background .25s ease, opacity .25s ease, filter .25s ease;
}

.feature-node-1 {
  top: 116px;
  left: 18px;
}

.feature-node-2 {
  top: 112px;
  right: 18px;
}

.feature-node-3 {
  top: 214px;
  left: -8px;
}

.feature-node-4 {
  top: 210px;
  right: -10px;
}

.feature-node-5 {
  bottom: 54px;
  left: 32px;
}

.feature-node-6 {
  bottom: 54px;
  right: 32px;
}

.feature-node::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  margin-bottom: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 12px rgba(56, 224, 211, .75);
  vertical-align: middle;
}

.feature-node.is-focused {
  background: rgba(12, 28, 56, .9);
  border-color: rgba(56, 224, 211, .26);
  box-shadow: 0 22px 38px rgba(0, 0, 0, .28), 0 0 0 1px rgba(56, 224, 211, .08);
}

.feature-node.is-target {
  background: rgba(12, 28, 56, .96);
  border-color: rgba(56, 224, 211, .32);
  box-shadow: 0 24px 40px rgba(0, 0, 0, .3), 0 0 18px rgba(56, 224, 211, .12);
}

.feature-node.is-moving {
  z-index: 4;
}

.feature-node.is-being-eaten {
  opacity: .14;
}

.feature-node.is-consumed {
  opacity: .08;
  filter: blur(1px);
}

.feature-node.is-focused::before {
  box-shadow: 0 0 16px rgba(56, 224, 211, .95);
}

.feature-node.is-consumed::before {
  opacity: .18;
  box-shadow: none;
}

.robot-display {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  z-index: 2;
  padding: 14px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .08);
}

.robot-display-label {
  color: var(--text-muted);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.robot-status {
  color: var(--text);
  font-size: .82rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 10px;
}

.robot-display-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.robot-display-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
  border-radius: 12px;
  background: rgba(56, 224, 211, .09);
  border: 1px solid rgba(56, 224, 211, .16);
  color: #ddfffb;
  font-size: .72rem;
  font-weight: 800;
}

.robot-pedestal {
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 300px;
  height: 86px;
  transform: translateX(-50%);
  pointer-events: none;
}

.robot-pedestal-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(56, 224, 211, .16);
  background: radial-gradient(circle at 50% 50%, rgba(56, 224, 211, .18), rgba(56, 224, 211, 0) 70%);
}

.robot-pedestal-ring-inner {
  inset: 14px 42px;
  border-color: rgba(49, 107, 245, .18);
  background: radial-gradient(circle at 50% 50%, rgba(49, 107, 245, .12), rgba(49, 107, 245, 0) 68%);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.hero-ai-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.hero-ai-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 10px 36px rgba(0, 0, 0, .2);
}

.hero-ai-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(56, 224, 211, .18), rgba(49, 107, 245, .18));
  color: var(--primary);
  font-size: 1.2rem;
}

.hero-ai-card small {
  display: block;
  color: var(--text-muted);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 4px;
}

.hero-ai-card strong {
  font-size: .95rem;
  font-weight: 700;
}

.stat { text-align: center; }

.stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: .8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255, 255, 255, .1);
}

/* ── Sections ────────────────────────────────────── */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  background: rgba(56, 224, 211, .1);
  border: 1px solid rgba(56, 224, 211, .15);
  font-size: .8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ── Features Grid ───────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(56, 224, 211, .15);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: .92rem;
  line-height: 1.6;
}

/* ── Levels ──────────────────────────────────────── */
.levels-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.level-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  transition: all var(--transition);
}

.level-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(56, 224, 211, .15);
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 16px;
}

.level-badge.a1 { background: linear-gradient(135deg, #38E0D3, #2bc4b8); }
.level-badge.a2 { background: linear-gradient(135deg, #3de0a0, #28c97e); }
.level-badge.b1 { background: linear-gradient(135deg, #316BF5, #5a8df7); }
.level-badge.b2 { background: linear-gradient(135deg, #7C3AED, #9b5ff5); }
.level-badge.c1 { background: linear-gradient(135deg, #F59E0B, #f7b84a); }

.level-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.level-card p {
  color: var(--text-muted);
  font-size: .85rem;
  line-height: 1.5;
}

/* ── Steps ───────────────────────────────────────── */
.steps-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  flex: 1;
  max-width: 300px;
  transition: all var(--transition);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 18px;
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.6;
}

.step-arrow {
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ── Tutor Registration ─────────────────────────── */
.section-tight {
  padding-top: 72px;
}

.application-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.info-card,
.form-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.info-card {
  padding: 28px;
  position: sticky;
  top: 92px;
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.info-card p,
.info-card li {
  color: var(--text-muted);
  font-size: .95rem;
}

.info-card ul {
  padding-left: 18px;
  display: grid;
  gap: 10px;
  margin: 0;
}

.info-card .section-tag {
  margin-bottom: 14px;
}

.form-card {
  padding: 32px;
}

.form-panel + .form-panel {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.form-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(56, 224, 211, .1);
  color: var(--primary);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.form-panel h2 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.form-panel p {
  color: var(--text-muted);
  margin-bottom: 20px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label,
.field legend {
  font-size: .92rem;
  font-weight: 600;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 14px;
  background: rgba(9, 17, 34, .8);
  color: var(--text);
  padding: 14px 16px;
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.field textarea {
  resize: vertical;
  min-height: 124px;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: rgba(56, 224, 211, .55);
  box-shadow: 0 0 0 3px rgba(56, 224, 211, .12);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.choice-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(9, 17, 34, .55);
  border: 1px solid rgba(255, 255, 255, .08);
}

.choice-chip input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.proficiency-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.helper-text {
  color: var(--text-muted);
  font-size: .85rem;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.form-status {
  min-height: 24px;
  font-size: .92rem;
}

.form-status[data-state='success'] {
  color: var(--primary);
}

.form-status[data-state='error'] {
  color: #ff908a;
}

body.rtl .nav-brand,
body.rtl .brand-icon,
body.rtl .brand-text {
  direction: ltr;
}

body.rtl .info-card ul {
  padding-right: 18px;
  padding-left: 0;
}

body.rtl .footer-col,
body.rtl .field,
body.rtl .field label,
body.rtl .field legend,
body.rtl .helper-text,
body.rtl .info-card {
  text-align: right;
}

/* ── CTA ─────────────────────────────────────────── */
.section-cta {
  padding: 80px 0 100px;
}

.cta-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(56, 224, 211, .08), rgba(49, 107, 245, .08));
  border: 1px solid rgba(56, 224, 211, .15);
  border-radius: 24px;
  padding: 60px 40px;
}

.cta-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 28px;
  border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: all var(--transition);
  color: var(--text);
}

.store-btn:hover {
  background: var(--bg-card-hover);
  border-color: rgba(56, 224, 211, .25);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.store-btn-web {
  border-color: rgba(56, 224, 211, .3);
  background: linear-gradient(135deg, rgba(56, 224, 211, .08), rgba(49, 107, 245, .08));
}

.store-btn-unavailable {
  opacity: .45;
  pointer-events: none;
  cursor: not-allowed;
}

.download-version {
  margin: 0 0 20px;
  font-size: .85rem;
  color: var(--text-muted);
}

.store-btn small {
  font-size: .7rem;
  color: var(--text-muted);
  display: block;
  text-align: left;
}

.store-btn strong {
  font-size: 1rem;
  display: block;
  text-align: left;
}

/* ── Footer ──────────────────────────────────────── */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding-top: 60px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: .9rem;
  margin-top: 12px;
  max-width: 260px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: .9rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: .8rem;
  color: var(--text-muted);
}

/* ── Mobile Responsive ───────────────────────────── */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto 36px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stage {
    min-height: auto;
  }

  .hero-visual-cluster {
    min-height: 470px;
  }

  .hero-ai-strip {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .levels-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps-row {
    flex-direction: column;
  }

  .step-arrow {
    transform: rotate(90deg);
  }

  .step-card {
    max-width: 100%;
    width: 100%;
  }

  .application-grid {
    grid-template-columns: 1fr;
  }

  .info-card {
    position: static;
  }

  .proficiency-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 112px 20px 72px;
  }

  .hero-visual-cluster {
    min-height: 380px;
  }

  .hero-orbit-one {
    width: 300px;
    height: 300px;
  }

  .hero-orbit-two {
    width: 230px;
    height: 230px;
  }

  .hero-orbit-three {
    width: 170px;
    height: 170px;
  }

  .hero-signal-one {
    width: 132px;
    height: 132px;
    top: 96px;
    left: 96px;
  }

  .hero-signal-two {
    width: 178px;
    height: 178px;
    right: 78px;
    bottom: 72px;
  }

  .robot-card {
    width: 226px;
    height: 320px;
  }

  .robot-head {
    width: 132px;
    height: 106px;
    margin-top: 50px;
  }

  .robot-neck {
    width: 58px;
    height: 15px;
  }

  .robot-body {
    width: 160px;
    height: 96px;
  }

  .robot-badge {
    top: 34px;
    font-size: .68rem;
    padding: 8px 12px;
  }

  .feature-node {
    top: 84px;
    right: 10px;
    width: 132px;
    padding: 9px 10px;
    font-size: .65rem;
  }

  .robot-display {
    left: 14px;
    right: 14px;
    bottom: 12px;
    padding: 10px;
  }

  .robot-display-grid {
    grid-template-columns: 1fr;
  }

  .robot-pedestal {
    width: 230px;
    height: 62px;
    bottom: 26px;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(9, 17, 34, .97);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(56, 224, 211, .08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .language-switcher {
    align-self: flex-start;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .levels-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .field-grid,
  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-num {
    font-size: 1.2rem;
  }

  .footer-inner {
    flex-direction: column;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .form-card,
  .info-card {
    padding: 24px;
  }
}

/* ── Animations ──────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slowSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes robotFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes chipFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes blinkGlow {
  0%, 46%, 100% { transform: scaleY(1); opacity: 1; }
  48% { transform: scaleY(.15); opacity: .8; }
  52% { transform: scaleY(1); opacity: 1; }
}

@keyframes chew {
  from { transform: translateX(-50%) scaleX(1) scaleY(1); }
  to { transform: translateX(-50%) scaleX(.88) scaleY(1.18); }
}

@keyframes barPulse {
  from { opacity: .5; transform: scaleY(.7); }
  to   { opacity: 1; transform: scaleY(1); }
}

.hero-content {
  animation: fadeUp .8s ease-out;
}

.feature-card,
.level-card,
.step-card,
.info-card,
.form-card {
  opacity: 0;
  animation: fadeUp .6s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: .1s; }
.feature-card:nth-child(2) { animation-delay: .2s; }
.feature-card:nth-child(3) { animation-delay: .3s; }
.feature-card:nth-child(4) { animation-delay: .4s; }
.feature-card:nth-child(5) { animation-delay: .5s; }
.feature-card:nth-child(6) { animation-delay: .6s; }

.level-card:nth-child(1) { animation-delay: .1s; }
.level-card:nth-child(2) { animation-delay: .2s; }
.level-card:nth-child(3) { animation-delay: .3s; }
.level-card:nth-child(4) { animation-delay: .4s; }
.level-card:nth-child(5) { animation-delay: .5s; }

.step-card:nth-child(1) { animation-delay: .1s; }
.step-card:nth-child(3) { animation-delay: .2s; }
.step-card:nth-child(5) { animation-delay: .3s; }