:root {
  --bg-primary: #F2EFEB;
  --bg-secondary: #E5E0DA;
  --bg-card: #FCFAF8;
  --bg-card-hover: #F0ECE7;
  --text-primary: #1C1C1C;
  --text-secondary: #3D3D3D;
  --text-muted: #7A7A7A;
  --border-color: #CFC8C0;
  --border-hover: #A52A2A;
  --accent: #A52A2A;
  --accent-glow: rgba(165,42,42,0.15);
  --shadow-color: rgba(0,0,0,0.06);
  --header-height: 70px;
  --header-bg: rgba(242,239,235,0.92);
  --header-border: #CFC8C0;
  --canvas-opacity: 0.45;
  --logo-gradient: linear-gradient(135deg, #1C1C1C 30%, #A52A2A 100%);
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 2rem;
  --space-4: 4rem;
  --space-5: 6rem;
  --radius-sm: 0.75rem;
  --radius-card: 1.25rem;
  --radius-pill: 60px;
  --ease-standard: 180ms ease-out;
}

[data-theme="dark"] {
  --bg-primary: #121212;
  --bg-secondary: #1E1E1E;
  --bg-card: #262626;
  --bg-card-hover: #323232;
  --text-primary: #F5F5F5;
  --text-secondary: #D0D0D0;
  --text-muted: #A0A0A0;
  --border-color: #4A4A4A;
  --border-hover: #C0392B;
  --accent: #C0392B;
  --accent-glow: rgba(192,57,43,0.25);
  --shadow-color: rgba(0,0,0,0.25);
  --header-bg: rgba(18,18,18,0.92);
  --header-border: #4A4A4A;
  --canvas-opacity: 0.70;
  --logo-gradient: linear-gradient(135deg, #F5F5F5 30%, #C0392B 100%);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding-top: var(--header-height);
  overflow-x: hidden;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s ease, color 0.4s ease;
}
a { color: inherit; }
button, input, textarea { font: inherit; }
a, button, input, textarea, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.header {
  align-items: center;
  background: var(--header-bg);
  background-image: linear-gradient(135deg, rgba(165,42,42,0.04), rgba(165,42,42,0.07), rgba(165,42,42,0.04));
  background-size: 300% 300%;
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 0 15px rgba(165,42,42,0.02);
  display: flex;
  height: var(--header-height);
  justify-content: space-between;
  left: 0;
  padding: 0.6rem 2rem;
  position: fixed;
  top: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.4s ease, border-color 0.4s ease;
  width: 100%;
  z-index: 99995;
  backdrop-filter: blur(12px);
  animation: chameleonBg 6s ease-in-out infinite alternate;
}
.header.hidden { transform: translateY(-100%); }
.header-left, .header-right { align-items: center; display: flex; }
.header-left { gap: 2rem; }
.header-right { gap: 0.8rem; }
.header-logo {
  background: var(--logo-gradient);
  background-clip: text;
  color: transparent;
  font-family: 'Manrope', sans-serif;
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-decoration: none;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}
.header-nav { align-items: center; display: flex; gap: 1.8rem; }
.header-nav a { color: var(--text-secondary); font: 500 0.95rem 'Manrope', sans-serif; letter-spacing: 0.5px; position: relative; text-decoration: none; }
.header-nav a::after { background: var(--accent); bottom: -4px; content: ''; height: 2px; left: 0; position: absolute; transition: width 0.3s ease; width: 0; }
.header-nav a:hover { color: var(--text-primary); }
.header-nav a:hover::after { width: 100%; }
.btn-cabinet, .theme-toggle-header {
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
}
.btn-cabinet {
  background: rgba(165,42,42,0.05);
  border: 2px solid var(--accent);
  color: var(--text-primary);
  font: 600 1rem 'Outfit', sans-serif;
  letter-spacing: 0.5px;
  overflow: hidden;
  padding: 0.6rem 1.8rem;
  position: relative;
}
.btn-cabinet::before { border: 2px solid var(--accent); border-radius: inherit; content: ''; inset: -2px; opacity: 0.5; pointer-events: none; position: absolute; }
.btn-cabinet:hover { background: rgba(165,42,42,0.12); transform: scale(1.05) translateY(-2px); }
.theme-toggle-header { align-items: center; background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-primary); display: flex; font: 600 0.8rem 'Outfit', sans-serif; gap: 0.3rem; padding: 0.4rem 0.8rem; }
.theme-toggle-header:hover { border-color: var(--accent); transform: scale(1.03); }

main { margin: 0 auto; max-width: 1300px; }
.hero { min-height: calc(100vh - var(--header-height)); padding: 7rem 2rem 3rem; }
.hero h1, h2 { font-family: 'Playfair Display', serif; font-weight: 400; letter-spacing: -0.04em; line-height: 0.96; }
.hero h1 { font-size: clamp(3.5rem, 9vw, 8rem); margin: var(--space-2) 0; }
.hero h1 em, h2 em, .cabinet-hero h1 em { color: var(--accent); font-style: italic; }
.hero-copy { color: var(--text-muted); font: 1.1rem/1.6 'JetBrains Mono', monospace; max-width: 34rem; }
.eyebrow { color: var(--accent); font: 600 0.72rem/1.2 'JetBrains Mono', monospace; letter-spacing: 0.12em; text-transform: uppercase; }
.button, .btn-liquid, .btn-trial { background: var(--accent); border: 1px solid var(--accent); border-radius: var(--radius-pill); color: var(--bg-card); cursor: pointer; display: inline-block; font: 600 0.95rem 'Outfit', sans-serif; margin-top: var(--space-2); padding: 0.9rem 1.25rem; text-decoration: none; transition: background var(--ease-standard), border-color var(--ease-standard), color var(--ease-standard), transform var(--ease-standard); }
.button:hover, .btn-liquid:hover, .btn-trial:hover { background: var(--border-hover); border-color: var(--border-hover); transform: translateY(-2px); }
.button-secondary { background: transparent; color: var(--accent); }
.button-quiet { background: transparent; border-color: transparent; color: var(--text-muted); }
.button:disabled { cursor: wait; opacity: 0.55; transform: none; }
.section-block { border-top: 1px solid var(--border-color); min-height: 22rem; padding: var(--space-4) 2rem; }
.section-block h2 { font-size: clamp(2.5rem, 6vw, 5.5rem); margin: var(--space-2) 0; }
.section-block p:not(.eyebrow), .section-block li, details { font: 1rem/1.6 'Manrope', sans-serif; max-width: 44rem; }
.split { display: grid; gap: var(--space-4); grid-template-columns: 1fr 1fr; }
.split ul { list-style: none; margin: var(--space-2) 0; padding: 0; }
.split li { border-bottom: 1px solid var(--border-color); padding: var(--space-2) 0; }
.plan-grid { display: grid; gap: var(--space-2); grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.plan-card, .cabinet-card, .identity-card, .empty-card { background: var(--bg-card); border: 1px solid var(--border-color); }
.plan-card { border-radius: var(--radius-sm); display: grid; gap: var(--space-1); padding: var(--space-2); }
.plan-card p, .plan-card span { color: var(--text-muted); margin: 0; }
.plan-card strong { color: var(--accent); font: 700 2rem/1 'JetBrains Mono', monospace; }
details { border-bottom: 1px solid var(--border-color); padding: var(--space-2) 0; }
summary { cursor: pointer; }

.cabinet-page { padding: var(--space-5) 2rem; }
.cabinet-shell { margin: 0 auto; max-width: 68rem; }
.cabinet-hero { align-items: end; display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr); min-height: 31rem; padding-bottom: var(--space-4); }
.cabinet-hero h1 { font: 400 clamp(4.25rem, 10vw, 8.5rem)/0.84 'Playfair Display', serif; letter-spacing: -0.07em; margin: var(--space-2) 0; }
.cabinet-lede, .card-label, .identity-meta, .muted-note, .empty-card p, .section-note, .key-note { color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }
.cabinet-lede { font-size: 0.92rem; line-height: 1.55; max-width: 27rem; }
.identity-card, .cabinet-card, .empty-card { border-radius: var(--radius-card); box-shadow: 0 1rem 2.75rem var(--shadow-color); }
.identity-card { align-items: center; display: flex; gap: var(--space-2); min-height: 12rem; padding: var(--space-3); }
.identity-orbit, .empty-mark { align-items: center; background: var(--accent-glow); border: 1px solid var(--accent); border-radius: 50%; display: inline-flex; justify-content: center; }
.identity-orbit { height: 4rem; position: relative; width: 4rem; }
.identity-orbit span { border: 1px solid var(--accent); border-radius: 50%; height: 2rem; width: 2rem; }
.card-label, .identity-meta, .muted-note, .empty-card p, .section-note, .key-note { font-size: 0.76rem; line-height: 1.5; margin: 0; }
.identity-value { font: 1.1rem/1.4 'JetBrains Mono', monospace; margin: var(--space-1) 0; overflow-wrap: anywhere; }
.cabinet-actions { align-items: center; border-bottom: 1px solid var(--border-color); display: flex; gap: var(--space-1); justify-content: space-between; padding-bottom: var(--space-3); }
.cabinet-actions form { margin: 0; }
.cabinet-actions .button { margin-top: 0; }
.cabinet-section { border-top: 1px solid var(--border-color); padding: var(--space-5) 0; }
.section-heading { align-items: end; display: flex; justify-content: space-between; margin-bottom: var(--space-3); }
.section-heading h2 { font-size: clamp(3rem, 7vw, 6rem); margin: var(--space-1) 0 0; }
.section-note { margin-bottom: var(--space-1); text-align: right; }
.cabinet-grid { display: grid; gap: var(--space-2); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cabinet-card, .empty-card { padding: var(--space-3); }
.card-topline, .key-heading { align-items: flex-start; display: flex; gap: var(--space-1); justify-content: space-between; }
.card-topline h3, .empty-card h3 { font: 1.45rem/1.2 'Playfair Display', serif; margin: var(--space-1) 0 0; }
.status { border: 1px solid currentColor; border-radius: var(--radius-pill); font: 0.65rem/1 'JetBrains Mono', monospace; padding: 0.6rem 0.7rem; text-align: center; text-transform: uppercase; }
.status-active, .key-ready .key-heading span { color: var(--accent); }
.status-expired, .status-pending, .status-unknown, .key-unavailable .key-heading span { color: var(--text-muted); }
.details-list { display: grid; gap: var(--space-1); margin: var(--space-3) 0; }
.details-list div { align-items: baseline; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; padding-bottom: var(--space-1); }
.details-list dt, .details-list dd, .key-heading, .key-panel label { font: 0.78rem/1.4 'JetBrains Mono', monospace; }
.details-list dt { color: var(--text-muted); }
.details-list dd { margin: 0; text-align: right; }
.key-panel { border-top: 1px solid var(--border-color); padding-top: var(--space-2); }
.key-heading { margin-bottom: var(--space-2); }
.key-heading span { font-size: 0.68rem; max-width: 11rem; text-align: right; }
.key-panel label { color: var(--text-muted); display: block; margin-bottom: var(--space-1); }
.key-panel textarea { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); min-height: 5rem; padding: var(--space-1); resize: vertical; width: 100%; }
.key-note { margin-top: var(--space-1); }
.empty-card { align-items: flex-start; display: flex; gap: var(--space-2); }
.empty-mark { color: var(--accent); flex: 0 0 auto; font: 1.5rem/1 'JetBrains Mono', monospace; height: 2.5rem; width: 2.5rem; }
.payments-table { border-top: 1px solid var(--border-color); font: 0.8rem/1.4 'JetBrains Mono', monospace; }
.payment-row { border-bottom: 1px solid var(--border-color); display: grid; gap: var(--space-1); grid-template-columns: 1.1fr 1fr 1fr 1fr; padding: var(--space-2) 0; }
.payment-header { color: var(--text-muted); font-size: 0.68rem; text-transform: uppercase; }
.payment-row strong { color: var(--accent); font-weight: 700; }
.checkout-page, .payment-status-page { padding-top: var(--space-4); }
.checkout-hero, .payment-status-hero { min-height: 24rem; }
.checkout-card, .payment-status-card { align-self: center; padding: var(--space-3); }
.checkout-card h2 { font-size: clamp(2rem, 5vw, 3.5rem); margin: var(--space-1) 0; }
.provider-list { border: 0; display: grid; gap: var(--space-1); margin: var(--space-3) 0; padding: 0; }
.provider-list legend { padding: 0; }
.provider-option { align-items: center; border: 1px solid var(--border-color); border-radius: var(--radius-sm); cursor: pointer; display: flex; gap: var(--space-1); padding: var(--space-1) var(--space-2); transition: border-color var(--ease-standard), background var(--ease-standard); }
.provider-option:hover, .provider-option:has(input:checked) { background: var(--accent-glow); border-color: var(--accent); }
.provider-option input { accent-color: var(--accent); }
.form-message { color: var(--text-muted); font: 0.78rem/1.5 'JetBrains Mono', monospace; margin: var(--space-1) 0; }
.form-message[role="alert"] { color: var(--accent); }
.payment-status-value { color: var(--accent); font: 700 clamp(1.6rem, 4vw, 2.5rem)/1.1 'JetBrains Mono', monospace; margin: var(--space-2) 0; }
.payment-status-actions { align-items: center; display: flex; flex-wrap: wrap; gap: var(--space-1); }
.payment-status-actions .button { margin-top: var(--space-1); }

.footer { border-top: 1px solid var(--border-color); margin: 0 auto; max-width: 1300px; padding: 3rem 2rem 2rem; position: relative; }
.footer-content { align-items: center; display: flex; flex-direction: column; gap: 2rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: center; }
.footer-link { align-items: center; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-pill); color: var(--text-secondary); display: inline-flex; font: 500 0.9rem 'Outfit', sans-serif; gap: 0.5rem; padding: 0.6rem 1.2rem; text-decoration: none; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.footer-link:hover { background: var(--bg-card-hover); border-color: var(--accent); color: var(--text-primary); transform: translateY(-2px) scale(1.02); }
.link-icon { align-items: center; color: var(--accent); display: inline-flex; height: 20px; justify-content: center; width: 20px; }
.link-icon svg { fill: none; height: 18px; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; width: 18px; }
.footer-copy { color: var(--text-muted); font: 0.85rem 'Manrope', sans-serif; margin-top: 0.5rem; text-align: center; }

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

@media (max-width: 992px) {
  .header-nav { gap: 1rem; }
  .hero { padding-inline: 1.5rem; }
}
@media (max-width: 768px) {
  :root { --header-height: 48px; }
  .header { animation: none; background-image: none; gap: 0.3rem; height: auto; min-height: 48px; padding: 0.2rem 0.6rem; }
  .header-left, .header-right { gap: 0.3rem; }
  .header-logo { font-size: 1rem; }
  .header-nav { display: none; }
  .btn-cabinet { border-width: 1px; font-size: 0.6rem; padding: 0.25rem 0.6rem; }
  .btn-cabinet::before { display: none; }
  .theme-toggle-header { background: transparent; border-color: rgba(165,42,42,0.1); font-size: 0.55rem; padding: 0.15rem 0.4rem; }
  .hero { min-height: auto; padding: 3.5rem 1rem 1.5rem; }
  .split { grid-template-columns: 1fr; }
  .section-block { padding: 2.5rem 1rem; }
  .cabinet-page { padding: var(--space-4) var(--space-2); }
  .cabinet-hero { display: block; min-height: 0; padding-bottom: var(--space-3); }
  .cabinet-hero h1 { font-size: clamp(3.8rem, 19vw, 6rem); }
  .identity-card { margin-top: var(--space-3); min-height: 9rem; padding: var(--space-2); }
  .cabinet-actions { align-items: stretch; flex-direction: column; padding-bottom: var(--space-3); }
  .cabinet-actions .button { text-align: center; width: 100%; }
  .cabinet-section { padding: var(--space-4) 0; }
  .section-heading { align-items: start; display: block; }
  .section-note { margin-top: var(--space-2); text-align: left; }
  .cabinet-grid { grid-template-columns: 1fr; }
  .cabinet-card, .empty-card { padding: var(--space-2); }
  .checkout-page, .payment-status-page { padding-top: var(--space-3); }
  .checkout-card, .payment-status-card { margin-top: var(--space-3); }
  .payment-row { gap: var(--space-2); grid-template-columns: 1fr 1fr; }
  .payment-header { display: none; }
  .payment-row span::before, .payment-row strong::before { color: var(--text-muted); content: attr(data-label) ': '; display: block; font-size: 0.65rem; margin-bottom: 0.25rem; text-transform: uppercase; }
  .footer { padding-inline: 1rem; }
  .footer-links { gap: 0.6rem; }
  .footer-link { font-size: 0.8rem; padding: 0.5rem 0.8rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; transition: none !important; }
  #typingContainer, #typedWrapper, #typingCursor { animation: none !important; }
  #typingCursor { display: none !important; }
  .button:hover, .btn-cabinet:hover, .footer-link:hover, .theme-toggle-header:hover { transform: none; }
}