:root {
  color-scheme: dark;
  --bg0: #070a12;
  --bg1: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.09);
  --stroke: rgba(255, 255, 255, 0.12);
  --stroke2: rgba(255, 255, 255, 0.18);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --muted2: rgba(255, 255, 255, 0.56);
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
  --shadow2: 0 12px 40px rgba(0, 0, 0, 0.45);

  --brandA: #14b8a6;
  --brandB: #2dd4bf;
  --brandC: #5eead4;
  --brandD: #0f766e;

  --r: 18px;
  --container: 1120px;
  --padX: 18px;
  --easeOut: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 18% 12%, rgba(20, 184, 166, 0.24), transparent 55%),
    radial-gradient(900px 540px at 86% 28%, rgba(45, 212, 191, 0.18), transparent 56%),
    radial-gradient(800px 540px at 54% 92%, rgba(94, 234, 212, 0.14), transparent 58%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
  padding: 2px 7px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.88);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  z-index: 9999;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid var(--stroke);
  color: var(--text);
  text-decoration: none;
}

.skip-link:focus {
  left: 10px;
}

.container {
  width: min(var(--container), calc(100% - (var(--padX) * 2)));
  margin: 0 auto;
}

.page {
  padding: 18px 0 54px;
}

.section {
  padding: 22px 0;
}

.muted {
  color: var(--muted);
}

.muted2 {
  color: var(--muted2);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 0.9rem;
  color: var(--muted);
}

.kicker {
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.74);
}

.h1 {
  margin: 10px 0 10px;
  font-size: clamp(2.15rem, 4.2vw, 3.45rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.h2 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  letter-spacing: -0.01em;
}

.lead {
  max-width: 64ch;
  margin: 0;
  font-size: 1.05rem;
  color: var(--muted);
}

.gradient-text {
  background: linear-gradient(92deg, var(--brandB), var(--brandA), var(--brandC));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradientShift 8s var(--easeOut) infinite;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  position: relative;
  border-radius: var(--r);
  border: 1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.04));
  box-shadow: var(--shadow2);
  overflow: hidden;
  transform: translateZ(0);
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 20% 10%, rgba(45, 212, 191, 0.18), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(20, 184, 166, 0.16), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(94, 234, 212, 0.14), transparent 45%);
  opacity: 0;
  transition: opacity 420ms var(--easeOut);
}

.card:hover::before {
  opacity: 1;
}

.card-body {
  position: relative;
  padding: 18px;
}

.card-title {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.card-desc {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card-link {
  text-decoration: none;
  display: block;
  height: 100%;
  transition: transform 450ms var(--easeOut), border-color 450ms var(--easeOut);
}

.card-link:hover .card {
  transform: translateY(-6px) scale(1.01);
  border-color: var(--stroke2);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.btn {
  appearance: none;
  border: 1px solid var(--stroke);
  border-radius: 14px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: -0.01em;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.42);
  transition: transform 350ms var(--easeOut), background 350ms var(--easeOut), border-color 350ms var(--easeOut);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.22), transparent 60%);
  transform: translateX(-120%) skewX(-18deg);
  animation: shine 3.8s var(--easeOut) infinite;
  pointer-events: none;
  opacity: 0.75;
}

.btn:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.10);
  border-color: var(--stroke2);
}

.btn.primary {
  border-color: rgba(45, 212, 191, 0.35);
  background: linear-gradient(120deg, rgba(45, 212, 191, 0.22), rgba(20, 184, 166, 0.22));
}

.btn.ghost::after {
  opacity: 0.45;
}

.hero {
  position: relative;
  padding: 58px 0 24px;
}

.hero-shell {
  border-radius: 26px;
  border: 1px solid var(--stroke);
  padding: 28px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-shell::before,
.hero-shell::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 999px;
  filter: blur(40px);
  opacity: 0.5;
  animation: floaty 10s var(--easeOut) infinite;
}

.hero-shell::before {
  background: radial-gradient(circle at 30% 30%, rgba(20, 184, 166, 0.78), transparent 55%);
  top: -280px;
  left: -220px;
}

.hero-shell::after {
  background: radial-gradient(circle at 30% 30%, rgba(45, 212, 191, 0.70), transparent 55%);
  bottom: -310px;
  right: -240px;
  animation-delay: -4s;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 16px;
  align-items: center;
}

.hero-art {
  position: relative;
  min-height: 180px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03)),
    conic-gradient(from 180deg at 50% 50%, rgba(20, 184, 166, 0.72), rgba(45, 212, 191, 0.62), rgba(94, 234, 212, 0.60), rgba(15, 118, 110, 0.42), rgba(20, 184, 166, 0.72));
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  transform: perspective(900px) rotateX(8deg) rotateY(-12deg);
  animation: bob 6.5s var(--easeOut) infinite;
}

.hero-art::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.65), transparent 44%),
    radial-gradient(circle at 62% 68%, rgba(0, 0, 0, 0.55), transparent 46%);
  mix-blend-mode: overlay;
  opacity: 0.35;
  animation: drift 9s var(--easeOut) infinite;
}

.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(255, 255, 255, 0.08), transparent 38%, rgba(0, 0, 0, 0.26));
  opacity: 0.7;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 12px 0;
  background: rgba(7, 10, 18, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 820;
  letter-spacing: -0.02em;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: conic-gradient(from 160deg at 50% 50%, rgba(45, 212, 191, 0.72), rgba(20, 184, 166, 0.70), rgba(94, 234, 212, 0.60), rgba(45, 212, 191, 0.72));
  box-shadow: 0 18px 50px rgba(20, 184, 166, 0.18);
  position: relative;
  overflow: hidden;
}

.brand-badge::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.32), transparent 60%);
  transform: translateX(-120%) skewX(-18deg);
  animation: shine 4.4s var(--easeOut) infinite;
  opacity: 0.6;
}

.nav {
  display: flex;
  gap: 10px;
  align-items: center;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 650;
  padding: 9px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: background 250ms var(--easeOut), color 250ms var(--easeOut), transform 250ms var(--easeOut), border-color 250ms var(--easeOut);
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.nav a[aria-current="page"] {
  color: var(--text);
  background: linear-gradient(120deg, rgba(45, 212, 191, 0.18), rgba(20, 184, 166, 0.16));
  border-color: rgba(45, 212, 191, 0.22);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 700;
}

.footer {
  padding: 34px 0 44px;
  color: var(--muted2);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.footer a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.25);
}

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

.reveal {
  opacity: 0;
  transform: translateY(14px);
  filter: blur(6px);
  transition: opacity 650ms var(--easeOut), transform 650ms var(--easeOut), filter 650ms var(--easeOut);
}

.reveal.reveal-in {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.note {
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--r);
  padding: 14px 14px;
  color: var(--muted);
}

.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.list li {
  margin: 6px 0;
}

.back-row {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.chip-link {
  text-decoration: none;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  padding: 9px 12px;
  border-radius: 999px;
  transition: transform 250ms var(--easeOut), border-color 250ms var(--easeOut), color 250ms var(--easeOut);
}

.chip-link:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text);
}

.plan-progress {
  border-radius: var(--r);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 14px;
}

.plan-progress-bar {
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.plan-progress-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(45, 212, 191, 0.78), rgba(20, 184, 166, 0.78), rgba(94, 234, 212, 0.72));
  box-shadow: 0 10px 40px rgba(20, 184, 166, 0.18);
  transition: width 700ms var(--easeOut);
  position: relative;
  overflow: hidden;
}

.plan-progress-bar-fill::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.30), transparent 60%);
  transform: translateX(-120%) skewX(-18deg);
  animation: shine 3.8s var(--easeOut) infinite;
  opacity: 0.55;
}

.plan-progress-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.plan-reset {
  padding: 10px 12px;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.plan-item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  align-items: start;
  border-radius: var(--r);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 14px 14px;
  cursor: pointer;
  transition: transform 300ms var(--easeOut), background 300ms var(--easeOut), border-color 300ms var(--easeOut);
}

.plan-item:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.plan-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: #14b8a6;
}

.plan-item strong {
  display: block;
  margin-bottom: 4px;
}

.plan-item.is-done {
  border-color: rgba(45, 212, 191, 0.22);
  background: linear-gradient(120deg, rgba(45, 212, 191, 0.10), rgba(20, 184, 166, 0.08));
}

.plan-item.is-done span {
  color: rgba(255, 255, 255, 0.78);
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes shine {
  0% {
    transform: translateX(-120%) skewX(-18deg);
  }
  55% {
    transform: translateX(140%) skewX(-18deg);
  }
  100% {
    transform: translateX(140%) skewX(-18deg);
  }
}

@keyframes floaty {
  0% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 18px, 0);
  }
  100% {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes drift {
  0% {
    transform: translate3d(-2%, -2%, 0) rotate(0deg);
  }
  50% {
    transform: translate3d(4%, 3%, 0) rotate(6deg);
  }
  100% {
    transform: translate3d(-2%, -2%, 0) rotate(0deg);
  }
}

@keyframes bob {
  0% {
    transform: perspective(900px) rotateX(8deg) rotateY(-12deg) translateY(0);
  }
  50% {
    transform: perspective(900px) rotateX(10deg) rotateY(-10deg) translateY(-10px);
  }
  100% {
    transform: perspective(900px) rotateX(8deg) rotateY(-12deg) translateY(0);
  }
}

@media (max-width: 880px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-art {
    transform: none;
    min-height: 160px;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    margin: 0 var(--padX);
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(7, 10, 18, 0.92);
    box-shadow: var(--shadow);
    padding: 10px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .site-header.nav-open .nav {
    display: flex;
    animation: pop 420ms var(--easeOut) both;
  }
}

@keyframes pop {
  0% {
    opacity: 0;
    transform: translateY(-6px) scale(0.98);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .btn::after,
  .brand-badge::after {
    display: none !important;
  }
}