:root {
  --landing-text: #eaf2ff;
  --landing-muted: #9bb0d3;
  --landing-accent: #2dd4bf;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  min-height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  color-scheme: dark;
  color: var(--landing-text);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  position: fixed;
  inset: 0;
  width: 100%;
  -webkit-overflow-scrolling: auto;
}

.landing-shell {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  max-width: 100vw;
  max-height: 100dvh;
  overflow: hidden;
}

.landing-track {
  display: grid;
  grid-template-columns: 100vw 100vw;
  width: 200vw;
  height: 100dvh;
  transform: translate3d(0, 0, 0);
  transition: transform 0.34s ease;
  will-change: transform;
  backface-visibility: hidden;
}

.landing-shell.login-open .landing-track {
  transform: translate3d(-100vw, 0, 0);
}

.landing-shell.no-anim .landing-track {
  transition: none;
}

.landing-screen {
  width: 100vw;
  height: 100dvh;
  min-height: 100dvh;
  max-height: 100dvh;
  padding: calc(24px + env(safe-area-inset-top)) 20px calc(20px + env(safe-area-inset-bottom));
  overflow: hidden;
}

.landing-home {
  display: grid;
  place-items: center;
  gap: 28px;
}

.landing-brand {
  width: min(580px, 100%);
  text-align: center;
}

.landing-brand .eyebrow {
  margin: 0;
  color: var(--landing-accent);
  font-size: 0.86rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.landing-brand h1 {
  margin: 10px 0 8px;
  font-size: clamp(2rem, 6vw, 3.2rem);
}

.landing-brand p {
  margin: 0;
  color: var(--landing-muted);
  font-size: 1.05rem;
}

.landing-actions {
  width: min(520px, 100%);
  display: grid;
  gap: 12px;
}

.landing-btn,
.landing-submit-btn,
.landing-back-btn {
  border: 1px solid var(--line-btn);
  border-radius: 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: var(--landing-text);
  background: var(--grad-btn);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.landing-btn {
  padding: 14px 16px;
  font-size: 1.08rem;
}

.landing-btn:hover,
.landing-submit-btn:hover,
.landing-back-btn:hover {
  filter: brightness(1.08);
}

.landing-btn:active,
.landing-submit-btn:active,
.landing-back-btn:active {
  transform: translateY(1px);
}

.landing-login {
  background: var(--grad-login);
  display: grid;
  grid-template-rows: auto 1fr;
  align-content: stretch;
  gap: 20px;
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

.landing-shell.login-open .landing-login {
  touch-action: none;
}

.landing-login-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.landing-login-header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.landing-back-btn {
  padding: 10px 13px;
  font-size: 1rem;
}

.landing-login-form {
  width: min(520px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 10px;
  align-self: center;
}

.landing-login-form label {
  font-size: 0.9rem;
}

.landing-login-form input {
  width: 100%;
  border: 1px solid var(--field-line);
  border-radius: 12px;
  padding: 11px;
  font: inherit;
  color: var(--landing-text);
  background: var(--field-bg);
}

.landing-login-form input::placeholder {
  color: var(--field-placeholder);
}

.landing-login-form input:focus {
  outline: 2px solid var(--field-focus-outline);
  border-color: var(--field-focus-border);
}

.landing-error {
  min-height: 1.2em;
  margin: 2px 0 0;
  color: var(--text-error);
  font-size: 0.88rem;
}

.landing-submit-btn {
  margin-top: 4px;
  padding: 12px 14px;
  font-size: 1.02rem;
}