/* ==========================================================================
   OTT Code Arena - Landing Page & Authentication Screen Styles
   Inspired by hoi10/ott_code_arena
   ========================================================================== */

#auth-screen.page {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: block;
  width: 100vw;
  max-width: none;
  min-height: 100dvh;
  height: 100dvh;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  overflow-y: auto;
  overflow-x: hidden;
  background-color: #f8fafc;
  color: #1e293b;
  font-family: "DM Sans", "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-font-smoothing: antialiased;
}

/* Atmospheric Background Glows */
.landing-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(120px);
  z-index: 0;
  opacity: 0.45;
}

.landing-glow-one {
  top: 60px;
  right: -120px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(22, 115, 70, 0.22) 0%, rgba(52, 211, 153, 0.08) 70%, transparent 100%);
}

.landing-glow-two {
  top: 550px;
  left: -150px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.18) 0%, rgba(99, 102, 241, 0.08) 70%, transparent 100%);
}

/* Common Container */
.landing-container {
  position: relative;
  z-index: 1;
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

/* Typography Helpers */
.landing-gradient-text {
  background: linear-gradient(110deg, #167346 0%, #0d9488 45%, #2563eb 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.landing-section-kicker {
  display: inline-block;
  margin-bottom: 12px;
  color: #167346;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.landing-section-heading {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.landing-section-heading h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.45rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #0f172a;
  margin-bottom: 14px;
}

.landing-section-heading p {
  color: #64748b;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Buttons */
.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.2, 0.8, 0.2, 1);
  text-decoration: none;
}

.landing-btn-large {
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 1.02rem;
  font-weight: 700;
}

.landing-btn-primary {
  background: linear-gradient(135deg, #167346 0%, #125c38 100%);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(22, 115, 70, 0.25);
}

.landing-btn-primary:hover {
  background: linear-gradient(135deg, #188350 0%, #146940 100%);
  box-shadow: 0 6px 22px rgba(22, 115, 70, 0.35);
  transform: translateY(-1px);
}

.landing-btn-secondary {
  background: #ffffff;
  color: #1e293b;
  border-color: #e2e8f0;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.landing-btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.landing-btn-ghost {
  background: transparent;
  color: #334155;
}

.landing-btn-ghost:hover {
  color: #167346;
  background: rgba(22, 115, 70, 0.06);
}

.landing-btn-white {
  background: #ffffff;
  color: #167346;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.landing-btn-white:hover {
  background: #f8fafc;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   Header / Navbar
   ========================================================================== */
.landing-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.landing-navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.landing-brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  line-height: 0;
  vertical-align: middle;
  filter: drop-shadow(0 3px 8px rgba(22, 115, 70, 0.25));
}

.landing-brand-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.landing-brand-name {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #0f172a;
}

.landing-brand-name span {
  display: inline-block;
  color: #167346;
}

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

.landing-nav-links a {
  color: #475569;
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.18s ease;
}

.landing-nav-links a:hover {
  color: #167346;
}

.landing-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.landing-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding: 68px 0 84px;
}

.landing-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(22, 115, 70, 0.08);
  border: 1px solid rgba(22, 115, 70, 0.18);
  color: #167346;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 24px;
}

.landing-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #167346;
  box-shadow: 0 0 0 3px rgba(22, 115, 70, 0.25);
  animation: landingPulse 2s infinite ease-in-out;
}

@keyframes landingPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

.landing-hero-title {
  font-size: clamp(2.35rem, 4.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.04em;
  color: #0f172a;
  margin-bottom: 20px;
}

.landing-hero-desc {
  font-size: 1.12rem;
  line-height: 1.68;
  color: #475569;
  max-width: 540px;
  margin-bottom: 36px;
}

.landing-hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 42px;
}

.landing-hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
}

.landing-avatar-stack {
  display: flex;
  align-items: center;
}

.landing-mini-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #ffffff;
  margin-left: -9px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.landing-mini-avatar:first-child {
  margin-left: 0;
}

.avatar-green { background: #167346; }
.avatar-purple { background: #6366f1; }
.avatar-blue { background: #0284c7; }
.avatar-orange { background: #ea580c; }

.landing-trust-stars {
  color: #f59e0b;
  font-size: 0.95rem;
  letter-spacing: 2px;
  line-height: 1;
  margin-bottom: 4px;
}

.landing-trust-copy p {
  color: #64748b;
  font-size: 0.84rem;
  margin: 0;
}

/* Hero Visual / Battle Card */
.landing-hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px 20px;
}

.visual-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(22, 115, 70, 0.2);
  pointer-events: none;
}

.orbit-one {
  width: 460px;
  height: 460px;
}

.orbit-two {
  width: 540px;
  height: 540px;
}

.landing-battle-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.1), 0 4px 12px rgba(15, 23, 42, 0.04);
  padding: 24px;
  backdrop-filter: blur(8px);
}

.battle-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.battle-live-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.live-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
  animation: landingPulse 1.8s infinite;
}

.battle-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #167346;
}

.round-label {
  font-size: 0.72rem;
  font-weight: 700;
  background: #f1f5f9;
  color: #475569;
  padding: 4px 10px;
  border-radius: 6px;
}

.battle-arena {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.battle-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.bot-avatar {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.bot-green { background: #ecfdf5; border: 1px solid #a7f3d0; }
.bot-cyan { background: #f0fdfa; border: 1px solid #99f6e4; }

.bot-name {
  font-size: 0.96rem;
  font-weight: 800;
  color: #0f172a;
}

.bot-type {
  font-size: 0.74rem;
  color: #64748b;
  margin-bottom: 8px;
}

.health-bar {
  width: 100%;
  height: 6px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}

.health-green { display: block; width: 85%; height: 100%; background: #167346; border-radius: 999px; }
.health-cyan { display: block; width: 75%; height: 100%; background: #0d9488; border-radius: 999px; }

.health-label {
  font-size: 0.72rem;
  color: #64748b;
}

.health-label b {
  color: #0f172a;
}

.battle-versus {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 800;
  color: #94a3b8;
  padding: 0 4px;
}

.versus-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, transparent, #cbd5e1, transparent);
  margin-top: 4px;
}

.battle-divider {
  height: 1px;
  background: #f1f5f9;
  margin: 20px 0 16px;
}

.battle-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #64748b;
}

.battle-status {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
}

.battle-timer {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: monospace;
  font-weight: 700;
  color: #334155;
}

/* Floating Chips */
.floating-chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  font-size: 0.82rem;
  color: #0f172a;
}

.floating-chip strong {
  display: block;
  font-weight: 700;
  line-height: 1.2;
}

.floating-chip small {
  color: #64748b;
  font-size: 0.72rem;
}

.chip-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
}

.green-icon { background: #dcfce7; color: #167346; }
.gold-icon { background: #fef3c7; color: #b45309; }

.chip-top {
  top: 14px;
  left: -20px;
  animation: floatSubtle 4s infinite ease-in-out;
}

.chip-bottom {
  bottom: 12px;
  right: -24px;
  animation: floatSubtle 4s infinite ease-in-out 2s;
}

@keyframes floatSubtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.decorative-spark {
  position: absolute;
  font-size: 1.4rem;
  color: #167346;
  opacity: 0.45;
  user-select: none;
}

.spark-one { top: 30px; right: 20px; }
.spark-two { bottom: 40px; left: 10px; }

/* ==========================================================================
   Interactive Auth Station (Code Preview + Form Card)
   ========================================================================== */
.landing-auth-station {
  padding: 72px 0 84px;
}

.landing-auth-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: stretch;
  gap: 40px;
}

.landing-strategy-showcase {
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 10px 32px rgba(15, 23, 42, 0.04);
}

.strategy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #167346;
  margin-bottom: 16px;
}

.visual-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #167346;
}

.landing-strategy-showcase h2 {
  font-size: clamp(1.75rem, 2.6vw, 2.3rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.035em;
  color: #0f172a;
  margin-bottom: 16px;
}

.strategy-desc {
  color: #475569;
  font-size: 1.02rem;
  line-height: 1.6;
  margin-bottom: 28px;
}

.strategy-code-card {
  background: #0f172a;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.18);
  margin-bottom: 28px;
}

.strategy-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #1e293b;
  padding: 10px 16px;
  border-bottom: 1px solid #334155;
}

.showcase-dots {
  display: flex;
  gap: 6px;
}

.showcase-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #475569;
}

.showcase-dots span:nth-child(1) { background: #ef4444; }
.showcase-dots span:nth-child(2) { background: #f59e0b; }
.showcase-dots span:nth-child(3) { background: #10b981; }

.showcase-file {
  font-family: monospace;
  font-size: 0.78rem;
  color: #94a3b8;
}

.showcase-live {
  font-size: 0.68rem;
  font-weight: 800;
  color: #34d399;
  letter-spacing: 0.05em;
}

.strategy-code-body {
  padding: 16px 20px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.7;
  color: #e2e8f0;
}

.code-line-number {
  color: #475569;
  user-select: none;
  margin-right: 12px;
}

.code-keyword { color: #f472b6; font-weight: 600; }
.code-func { color: #60a5fa; }
.code-type { color: #38bdf8; }
.code-string { color: #a7f3d0; }
.code-number { color: #f59e0b; }
.code-comment { color: #64748b; font-style: italic; }

.code-output {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed #334155;
  color: #34d399;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.output-check {
  font-weight: 800;
}

.strategy-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mini-stat-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
}

.mini-stat-icon {
  font-size: 1.2rem;
}

.mini-stat-chip strong {
  display: block;
  font-size: 0.84rem;
  color: #0f172a;
}

.mini-stat-chip span {
  font-size: 0.72rem;
  color: #64748b;
}

/* Auth Card Styling */
#auth-screen .auth-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#auth-screen .auth-branding {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

#auth-screen .auth-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #167346;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(22, 115, 70, 0.2);
}

#auth-screen .brand-text h2 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
  margin: 0;
}

#auth-screen .brand-tagline {
  margin: 3px 0 0;
  color: #64748b;
  font-size: 0.84rem;
}

/* Tabs switcher */
.auth-tabs {
  display: flex;
  background: #f1f5f9;
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 24px;
}

.auth-tab-btn {
  flex: 1;
  padding: 9px 12px;
  border: none;
  background: transparent;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #64748b;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-tab-btn.active {
  background: #ffffff;
  color: #167346;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

#auth-screen .form-header {
  margin-bottom: 20px;
}

#auth-screen .form-header h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 4px;
}

#auth-screen .form-description {
  font-size: 0.88rem;
  color: #64748b;
  margin: 0;
}

#auth-screen .form-group {
  margin-bottom: 18px;
}

#auth-screen .form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 7px;
}

#auth-screen .required-field::after {
  content: " *";
  color: #ef4444;
}

#auth-screen .input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

#auth-screen .input-icon {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 18px;
  color: #94a3b8;
  pointer-events: none;
}

#auth-screen .input-wrapper input {
  width: 100%;
  height: 46px;
  padding: 0 14px 0 40px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  font-size: 0.94rem;
  color: #0f172a;
  background: #ffffff;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

#auth-screen .password-input-wrapper input {
  padding-right: 48px;
}

#auth-screen .input-wrapper input:focus {
  outline: none;
  border-color: #167346;
  box-shadow: 0 0 0 3px rgba(22, 115, 70, 0.14);
}

#auth-screen .password-toggle-btn {
  position: absolute;
  right: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  color: #64748b;
  cursor: pointer;
  border-radius: 6px;
}

#auth-screen .password-toggle-btn:hover {
  color: #0f172a;
}

#auth-screen .form-message {
  margin: 12px 0;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.86rem;
  line-height: 1.45;
  text-align: center;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}

#auth-screen .form-message[data-type="success"] {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #167346;
}

#auth-screen .field-error {
  display: none;
  margin: 6px 0 0;
  color: #b42318;
  font-size: .78rem;
  line-height: 1.4;
}

#auth-screen .field-error.visible {
  display: block;
}

#auth-screen .form-actions {
  margin-top: 24px;
}

#auth-screen .primary-btn {
  width: 100%;
  height: 48px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #167346 0%, #125c38 100%);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(22, 115, 70, 0.25);
  transition: all 0.2s ease;
}

#auth-screen .primary-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #188350 0%, #146940 100%);
  box-shadow: 0 6px 18px rgba(22, 115, 70, 0.35);
  transform: translateY(-1px);
}

#auth-screen .primary-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

#auth-screen .auth-switch {
  text-align: center;
  margin-top: 20px;
  font-size: 0.88rem;
  color: #64748b;
}

#auth-screen .text-link {
  background: transparent;
  border: none;
  color: #167346;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  font-size: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

#auth-screen .text-link:hover {
  color: #125c38;
}

/* ==========================================================================
   Statistics Strip
   ========================================================================== */
.landing-stats-section {
  padding: 24px 0 64px;
}

.landing-stats-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 28px 36px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.landing-stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.stat-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  flex-shrink: 0;
}

.icon-purple { background: #e0e7ff; color: #4338ca; }
.icon-cyan { background: #ccfbf1; color: #0f766e; }
.icon-gold { background: #fef3c7; color: #b45309; }
.icon-green { background: #dcfce7; color: #167346; }

.landing-stat-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
}

.landing-stat-label {
  font-size: 0.82rem;
  color: #64748b;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: #e2e8f0;
  margin: 0 20px;
}

/* ==========================================================================
   Rules Section: Kéo - Búa - Bao 9x9
   ========================================================================== */
.landing-rules-section {
  padding: 80px 0;
}

.landing-rules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.rule-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 32px 28px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  transition: all 0.25s ease;
}

.rule-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
  border-color: #cbd5e1;
}

.rule-icon-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

.keo-circle { background: linear-gradient(135deg, #fef08a 0%, #facc15 100%); }
.bua-circle { background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%); }
.bao-circle { background: linear-gradient(135deg, #a7f3d0 0%, #34d399 100%); }

.rule-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.rule-relation {
  font-size: 0.88rem;
  color: #167346;
  font-weight: 600;
  margin-bottom: 12px;
}

.rule-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: #64748b;
  margin: 0;
}

.rules-win-conditions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.win-card {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px 28px;
}

.win-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #167346;
  background: #dcfce7;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.win-card h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.win-card p {
  font-size: 0.94rem;
  color: #475569;
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.landing-features-section {
  padding: 80px 0;
}

.landing-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.landing-feature-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 22px;
  padding: 36px 30px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.landing-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.landing-feature-card.highlight-card {
  border-color: #167346;
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
  box-shadow: 0 14px 36px rgba(22, 115, 70, 0.09);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.feature-icon-box svg {
  width: 28px;
  height: 28px;
}

.feature-index {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #64748b;
  margin-bottom: 10px;
}

.landing-feature-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.landing-feature-card p {
  font-size: 0.96rem;
  line-height: 1.65;
  color: #475569;
  margin-bottom: 24px;
  flex-grow: 1;
}

.landing-feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.92rem;
  font-weight: 700;
  color: #167346;
  cursor: pointer;
}

.landing-feature-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Workflow / How It Works
   ========================================================================== */
.landing-workflow-section {
  padding: 80px 0;
  background: #f1f5f9;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}

.landing-workflow-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 56px;
}

.landing-workflow-intro h2 {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #0f172a;
  margin-bottom: 18px;
}

.landing-workflow-intro p {
  font-size: 1.08rem;
  line-height: 1.68;
  color: #475569;
  margin-bottom: 32px;
}

.landing-workflow-steps {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.workflow-step-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 22px 28px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.03);
}

.step-badge {
  font-size: 1.35rem;
  font-weight: 900;
  color: #167346;
  background: #dcfce7;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-text h3 {
  font-size: 1.12rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 4px;
}

.step-text p {
  font-size: 0.9rem;
  color: #64748b;
  margin: 0;
}

.step-icon-status {
  margin-left: auto;
  font-size: 1.1rem;
  font-weight: 800;
  color: #94a3b8;
}

/* ==========================================================================
   Call To Action (CTA Banner)
   ========================================================================== */
.landing-cta-section {
  padding: 80px 0;
}

.landing-cta-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #167346 0%, #064e3b 100%);
  border-radius: 28px;
  padding: 64px 56px;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 36px;
  box-shadow: 0 24px 56px rgba(6, 78, 59, 0.28);
}

.cta-decoration-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.circle-one {
  top: -100px;
  right: -100px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.22) 0%, transparent 70%);
}

.circle-two {
  bottom: -120px;
  left: 20%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.18) 0%, transparent 70%);
}

.landing-cta-kicker {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #a7f3d0;
  margin-bottom: 16px;
}

.landing-cta-content h2 {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: #ffffff;
}

.landing-cta-content p {
  font-size: 1.08rem;
  line-height: 1.6;
  color: #d1fae5;
  margin-bottom: 32px;
  max-width: 520px;
}

.landing-cta-graphic {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.cta-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

.ring-one { width: 220px; height: 220px; }
.ring-two { width: 300px; height: 300px; }

.cta-core {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 18px;
  color: #ffffff;
}

.cta-core span {
  color: #a7f3d0;
}

.cta-sparkle {
  position: absolute;
  color: #a7f3d0;
  font-size: 1.2rem;
}

.spark-one { top: 20px; right: 40px; }
.spark-two { bottom: 20px; left: 30px; }
.spark-three { top: 80px; left: 50px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.landing-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 64px 0 32px;
}

.landing-footer-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid #1e293b;
}

.landing-footer-brand {
  max-width: 360px;
}

.landing-footer-brand .landing-brand-name {
  color: #ffffff;
}

.landing-footer-brand p {
  margin-top: 14px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: #64748b;
}

.landing-footer-columns {
  display: flex;
  gap: 56px;
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: #94a3b8;
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.18s ease;
}

.footer-col a:hover {
  color: #34d399;
}

.landing-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  font-size: 0.84rem;
  color: #64748b;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 991px) {
  .landing-hero {
    grid-template-columns: 1fr;
    padding: 48px 0 64px;
  }

  .landing-hero-content {
    text-align: center;
  }

  .landing-hero-desc {
    margin-inline: auto;
  }

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

  .landing-hero-trust {
    justify-content: center;
  }

  .landing-auth-grid {
    grid-template-columns: 1fr;
  }

  .landing-stats-card {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
    margin: 4px 0;
  }

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

  .rules-win-conditions {
    grid-template-columns: 1fr;
  }

  .landing-workflow-layout {
    grid-template-columns: 1fr;
  }

  .landing-cta-card {
    grid-template-columns: 1fr;
    padding: 44px 32px;
    text-align: center;
  }

  .landing-cta-content p {
    margin-inline: auto;
  }

  .landing-footer-main {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .landing-nav-links {
    display: none;
  }

  .landing-hero-title {
    font-size: 2.1rem;
  }

  .landing-hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .landing-hero-actions .landing-btn {
    width: 100%;
  }

  .landing-footer-columns {
    flex-direction: column;
    gap: 32px;
  }

  .landing-footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Auth redesign: truthful product entry point, without invented activity or metrics. */
#auth-screen.page {
  position: fixed;
  inset: 0;
  z-index: 1000;
  overflow-x: hidden;
  overflow-y: auto;
  display: block;
  min-height: 100dvh;
  height: 100dvh;
  background: #f4f8f5;
  color: #17231d;
}

#auth-screen .landing-glow,
#auth-screen .landing-hero,
#auth-screen .landing-strategy-showcase,
#auth-screen .landing-stats-section,
#auth-screen .landing-cta-section,
#auth-screen .landing-footer {
  display: none;
}

#auth-screen .landing-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  margin-right: 28px;
}

#auth-screen .landing-nav-links a {
  color: #5d7065;
  font-size: .84rem;
  font-weight: 650;
  text-decoration: none;
}

#auth-screen .landing-nav-links a:hover,
#auth-screen .landing-nav-links a:focus-visible { color: #176f4f; }

#auth-screen .landing-rules-section,
#auth-screen .landing-features-section,
#auth-screen .landing-workflow-section {
  display: block;
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px 28px;
}

#auth-screen .landing-section-heading,
#auth-screen .landing-workflow-intro { max-width: 700px; }
#auth-screen .landing-section-heading h2,
#auth-screen .landing-workflow-intro h2 { color: #17231d; }
#auth-screen .landing-section-heading p,
#auth-screen .landing-workflow-intro p { color: #5d7065; }

#auth-screen .landing-features-grid,
#auth-screen .landing-rules-grid { gap: 16px; }
#auth-screen .landing-feature-card,
#auth-screen .rule-card,
#auth-screen .workflow-step-card {
  border-color: #d8e5dc;
  background: #fff;
  box-shadow: none;
}

#auth-screen .landing-feature-card p,
#auth-screen .rule-card p,
#auth-screen .workflow-step-card p { color: #65756b; }

#auth-screen .rules-win-conditions { gap: 16px; }
#auth-screen .win-card { border-color: #d8e5dc; background: #eaf4ed; }

@media (max-width: 900px) {
  #auth-screen .landing-nav-links { gap: 12px; margin-right: 14px; }
  #auth-screen .landing-nav-links a { font-size: .76rem; }
}

@media (max-width: 680px) {
  #auth-screen .landing-nav-links { display: none; }
  #auth-screen .landing-rules-section,
  #auth-screen .landing-features-section,
  #auth-screen .landing-workflow-section { padding: 48px 18px; }
}

#auth-screen .landing-navbar {
  position: sticky;
  top: 0;
  z-index: 5;
  min-height: 72px;
  border-bottom: 1px solid #dce8df;
  background: #f4f8f5;
}

#auth-screen .landing-navbar-inner {
  min-height: 72px;
  max-width: 1180px;
  padding: 0 28px;
}

#auth-screen .landing-nav-actions { margin-left: auto; }
#auth-screen .landing-brand-name { color: #17231d; }
#auth-screen .landing-brand-name span { color: #176f4f; }

#auth-screen .landing-auth-station {
  display: block;
  max-width: 1180px;
  min-height: calc(100vh - 72px);
  padding: 52px 28px 68px;
}

#auth-screen .landing-auth-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .76fr);
  align-items: stretch;
  gap: clamp(40px, 7vw, 104px);
  margin: 0;
}

#auth-screen .auth-system-panel {
  display: flex;
  min-height: 590px;
  flex-direction: column;
  justify-content: center;
  padding: clamp(8px, 2vw, 32px) 0;
}

#auth-screen .auth-system-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: #176f4f;
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .12em;
}

#auth-screen .auth-system-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #24a36d;
  box-shadow: 0 0 0 5px #dcefe3;
}

#auth-screen .auth-system-panel h1 {
  max-width: 620px;
  margin: 0;
  color: #17231d;
  font-size: clamp(3.2rem, 6vw, 6.2rem);
  font-weight: 800;
  letter-spacing: -.065em;
  line-height: .94;
}

#auth-screen .auth-system-panel h1 span { color: #176f4f; }

#auth-screen .auth-system-intro {
  max-width: 520px;
  margin: 26px 0 34px;
  color: #5d7065;
  font-size: 1.08rem;
  line-height: 1.65;
}

#auth-screen .auth-code-preview {
  width: min(100%, 560px);
  margin: 0 0 28px;
  overflow: hidden;
  border: 1px solid #284d3b;
  border-radius: 14px;
  background: #12251c;
  color: #d8eee0;
  box-shadow: 12px 14px 0 #d4e8da;
}

#auth-screen .auth-code-preview-header {
  display: flex;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid #284d3b;
  color: #9ec9ad;
  font: 700 .72rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
}

#auth-screen .auth-code-preview pre {
  margin: 0;
  padding: 15px 16px 8px;
  overflow-x: auto;
  font: .78rem/1.65 ui-monospace, SFMono-Regular, Consolas, monospace;
}

#auth-screen .auth-code-preview p {
  margin: 0;
  padding: 0 16px 14px;
  color: #8fd3a7;
  font-size: .74rem;
}

#auth-screen .auth-code-preview p span { margin-right: 6px; color: #4dd28b; }
#auth-screen .auth-code-muted { color: #8bb39a; }
#auth-screen .auth-code-accent { color: #9ee6bb; }
#auth-screen .auth-code-comment { color: #6e9b7e; }
#auth-screen .auth-code-keyword { color: #f1c87c; }

#auth-screen .auth-system-board {
  position: relative;
  width: min(100%, 420px);
  aspect-ratio: 1.8;
  margin: 0 0 34px 18px;
  border: 1px solid #b5d1bf;
  border-radius: 18px;
  background-color: #e4f1e8;
  box-shadow: 14px 16px 0 #cde4d4;
  transform: perspective(700px) rotateX(calc(48deg + var(--board-tilt-y, 0deg))) rotateZ(calc(-7deg + var(--board-tilt-x, 0deg))) skewX(-4deg);
  animation: auth-board-float 6s ease-in-out infinite;
}

#auth-screen .auth-system-board::before,
#auth-screen .auth-system-board::after {
  position: absolute;
  inset: 10%;
  content: '';
  background-size: 12.5% 100%, 100% 12.5%;
  background-position: 0 0, 0 0;
  background-repeat: repeat-x, repeat-y;
  opacity: .55;
  pointer-events: none;
}

#auth-screen .auth-system-board::before {
  background-image: linear-gradient(90deg, #8db7a0 1px, transparent 1px), linear-gradient(0deg, #8db7a0 1px, transparent 1px);
}

#auth-screen .auth-system-board::after {
  inset: 18% 12%;
  border: 2px solid #176f4f;
  background: transparent;
  opacity: .28;
}

#auth-screen .board-piece {
  position: absolute;
  z-index: 1;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  box-shadow: inset 0 -8px 0 rgba(0, 0, 0, .1), 0 8px 0 rgba(23, 111, 79, .16);
}

#auth-screen .board-piece-a { top: 28%; left: 30%; background: #176f4f; }
#auth-screen .board-piece-b { right: 24%; bottom: 24%; background: #d89632; }

#auth-screen .auth-system-facts {
  display: grid;
  max-width: 620px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

#auth-screen .auth-system-facts div {
  display: grid;
  gap: 6px;
  padding-top: 14px;
  border-top: 2px solid #cfe1d5;
}

#auth-screen .auth-system-facts strong { color: #1f3528; font-size: .84rem; }
#auth-screen .auth-system-facts span { color: #708076; font-size: .76rem; line-height: 1.45; }

#auth-screen .auth-card {
  align-self: center;
  border: 1px solid #d8e5dc;
  border-radius: 18px;
  padding: 34px 32px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(23, 56, 38, .09);
}

#auth-screen .auth-branding { margin-bottom: 20px; }
#auth-screen .auth-logo { box-shadow: none; }
#auth-screen .auth-tabs { margin-bottom: 26px; }
#auth-screen .auth-tab-btn { min-height: 44px; }
#auth-screen .auth-card .primary-btn {
  background: #176f4f;
  box-shadow: none;
}
#auth-screen .auth-card .primary-btn:hover:not(:disabled) { background: #125c40; box-shadow: none; }

#auth-screen button:focus-visible,
#auth-screen a:focus-visible,
#auth-screen input:focus-visible {
  outline: 3px solid rgba(37, 170, 111, .42);
  outline-offset: 3px;
}

#auth-screen .landing-nav-actions .landing-btn-primary {
  min-width: 148px;
}

@keyframes auth-board-float {
  0%, 100% { transform: perspective(700px) rotateX(calc(48deg + var(--board-tilt-y, 0deg))) rotateZ(calc(-7deg + var(--board-tilt-x, 0deg))) skewX(-4deg) translateY(0); }
  50% { transform: perspective(700px) rotateX(calc(48deg + var(--board-tilt-y, 0deg))) rotateZ(calc(-7deg + var(--board-tilt-x, 0deg))) skewX(-4deg) translateY(-7px); }
}

#auth-screen.motion-ready .auth-system-panel,
#auth-screen.motion-ready .auth-card,
#auth-screen.motion-ready .landing-rules-section,
#auth-screen.motion-ready .landing-features-section,
#auth-screen.motion-ready .landing-workflow-section,
#auth-screen.motion-ready .landing-feature-card,
#auth-screen.motion-ready .rule-card,
#auth-screen.motion-ready .win-card,
#auth-screen.motion-ready .workflow-step-card {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition: opacity .65s ease, transform .65s cubic-bezier(.2, .75, .25, 1);
}

#auth-screen.motion-ready .auth-system-panel.is-visible,
#auth-screen.motion-ready .auth-card.is-visible,
#auth-screen.motion-ready .landing-rules-section.is-visible,
#auth-screen.motion-ready .landing-features-section.is-visible,
#auth-screen.motion-ready .landing-workflow-section.is-visible,
#auth-screen.motion-ready .landing-feature-card.is-visible,
#auth-screen.motion-ready .rule-card.is-visible,
#auth-screen.motion-ready .win-card.is-visible,
#auth-screen.motion-ready .workflow-step-card.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

#auth-screen.motion-ready .landing-feature-card:nth-child(2),
#auth-screen.motion-ready .rule-card:nth-child(2),
#auth-screen.motion-ready .win-card:nth-child(2),
#auth-screen.motion-ready .workflow-step-card:nth-child(2) { transition-delay: 80ms; }

#auth-screen.motion-ready .landing-feature-card:nth-child(3),
#auth-screen.motion-ready .rule-card:nth-child(3),
#auth-screen.motion-ready .workflow-step-card:nth-child(3) { transition-delay: 160ms; }

#auth-screen .landing-feature-card:hover,
#auth-screen .rule-card:hover,
#auth-screen .workflow-step-card:hover {
  transform: translateY(-5px) rotateX(1deg) rotateY(-1deg);
  transition-duration: .25s;
}

#auth-screen .board-piece-a { animation: auth-piece-pulse 3.4s ease-in-out infinite; }
#auth-screen .board-piece-b { animation: auth-piece-pulse 3.4s ease-in-out 1.2s infinite; }

@keyframes auth-piece-pulse {
  0%, 100% { transform: translateZ(0) scale(1); }
  50% { transform: translateZ(12px) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  #auth-screen .auth-system-board,
  #auth-screen .board-piece-a,
  #auth-screen .board-piece-b { animation: none; }
  #auth-screen.motion-ready .auth-system-panel,
  #auth-screen.motion-ready .auth-card,
  #auth-screen.motion-ready .landing-rules-section,
  #auth-screen.motion-ready .landing-features-section,
  #auth-screen.motion-ready .landing-workflow-section,
  #auth-screen.motion-ready .landing-feature-card,
  #auth-screen.motion-ready .rule-card,
  #auth-screen.motion-ready .win-card,
  #auth-screen.motion-ready .workflow-step-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 820px) {
  #auth-screen .landing-navbar-inner { padding: 0 18px; }
  #auth-screen .landing-auth-station { padding: 34px 18px 48px; }
  #auth-screen .landing-auth-grid { grid-template-columns: 1fr; gap: 28px; }
  #auth-screen .auth-system-panel { min-height: auto; padding: 12px 0 0; }
  #auth-screen .auth-system-panel h1 { font-size: clamp(2.8rem, 12vw, 4.6rem); }
  #auth-screen .auth-system-board { margin-left: 8px; }
  #auth-screen .auth-code-preview { width: 100%; box-shadow: 8px 10px 0 #d4e8da; }
  #auth-screen .auth-card { width: 100%; box-sizing: border-box; }
}

@media (max-width: 520px) {
  #auth-screen .landing-nav-actions .landing-btn-ghost { display: none; }
  #auth-screen .landing-nav-actions .landing-btn-primary { padding: 9px 13px; }
  #auth-screen .auth-system-facts { grid-template-columns: 1fr; gap: 12px; }
  #auth-screen .auth-system-facts div { padding-top: 10px; }
  #auth-screen .auth-card { padding: 26px 20px; }
}