:root {
  color-scheme: dark;
  --bg: #090a0f;
  --panel: rgba(20, 21, 30, 0.82);
  --panel-solid: #14151e;
  --text: #f4f3fa;
  --muted: #9b9aaa;
  --line: rgba(255, 255, 255, 0.1);
  --purple: #8b6cff;
  --cyan: #44d7d0;
  --danger: #ff7b8c;
  --radius: 24px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% -20%, rgba(108, 85, 255, 0.18), transparent 42%),
    var(--bg);
  color: var(--text);
}
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }

.ambient { position: fixed; z-index: -1; border-radius: 50%; filter: blur(100px); opacity: .14; }
.ambient-one { width: 420px; height: 420px; background: var(--purple); top: 20%; right: -240px; }
.ambient-two { width: 340px; height: 340px; background: var(--cyan); bottom: 10%; left: -220px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 20px 0;
  background: linear-gradient(var(--bg) 55%, transparent);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 700; letter-spacing: .12em; }
.brand b { color: var(--purple); }
.brand-mark { display: inline-grid; place-items: center; width: 32px; height: 32px; border: 1px solid rgba(255,255,255,.26); border-radius: 9px; background: linear-gradient(145deg, rgba(139,108,255,.32), rgba(68,215,208,.12)); font-weight: 800; }
.main-nav { display: flex; gap: 34px; color: var(--muted); font-size: 14px; }
.main-nav a:hover { color: var(--text); }
.account-area { justify-self: end; display: flex; align-items: center; gap: 10px; }
.user-chip { padding: 8px 12px; border-radius: 999px; background: rgba(139,108,255,.13); color: #cfc4ff; font-size: 13px; }

.button { border: 0; border-radius: 12px; padding: 11px 17px; color: var(--text); cursor: pointer; transition: transform .18s, background .18s, border-color .18s; }
.button:hover { transform: translateY(-1px); }
.button:disabled { opacity: .48; cursor: wait; transform: none; }
.button-primary { background: linear-gradient(135deg, #7759f7, #9b7bff); box-shadow: 0 10px 30px rgba(111,79,245,.2); }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.035); }
.button-full { width: 100%; }

main { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { min-height: 630px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 80px 0 110px; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: #aaa4c8; font-size: 11px; font-weight: 700; letter-spacing: .22em; }
.eyebrow span { width: 28px; height: 1px; background: var(--purple); }
.hero h1 { margin: 25px 0 22px; max-width: 760px; font-size: clamp(54px, 9vw, 104px); line-height: .96; letter-spacing: -.065em; }
.hero h1 em { color: transparent; -webkit-text-stroke: 1px rgba(194,180,255,.72); font-style: normal; }
.hero > p { max-width: 600px; margin: 0; color: var(--muted); font-size: 18px; line-height: 1.8; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 34px; }
.access-note { color: #777685; font-size: 13px; }

.module-section { padding: 90px 0; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 34px; }
.section-heading > div { display: flex; align-items: baseline; gap: 16px; }
.section-heading h2 { margin: 0; font-size: clamp(34px, 5vw, 54px); letter-spacing: -.045em; }
.section-index { color: var(--purple); font-family: ui-monospace, monospace; font-size: 13px; }
.section-heading > p { max-width: 380px; margin: 0; color: var(--muted); line-height: 1.7; }

.locked-card { min-height: 330px; display: grid; place-items: center; align-content: center; gap: 12px; padding: 44px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(139,108,255,.08), rgba(255,255,255,.025)); text-align: center; }
.locked-card.compact { min-height: 170px; grid-template-columns: auto auto; text-align: left; }
.locked-card h3 { margin: 4px 0 0; font-size: 22px; }
.locked-card p { margin: 0 0 12px; color: var(--muted); }
.lock-symbol { display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid rgba(139,108,255,.35); border-radius: 18px; color: #b5a2ff; font-size: 26px; }

.chat-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 610px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); backdrop-filter: blur(18px); }
.conversation-panel { padding: 18px; border-right: 1px solid var(--line); background: rgba(5,5,9,.25); }
.conversation-list { display: grid; gap: 6px; margin-top: 18px; }
.conversation-item { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; width: 100%; padding: 11px 10px; border: 0; border-radius: 10px; color: var(--muted); background: transparent; text-align: left; cursor: pointer; }
.conversation-item:hover, .conversation-item.active { color: var(--text); background: rgba(255,255,255,.055); }
.conversation-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-delete { border: 0; color: #777; background: transparent; cursor: pointer; }
.chat-main { min-width: 0; display: grid; grid-template-rows: 1fr auto auto; }
.messages { height: 500px; overflow-y: auto; padding: 30px clamp(20px, 5vw, 60px); }
.empty-state { height: 100%; display: grid; place-items: center; align-content: center; color: var(--muted); text-align: center; }
.empty-state span { color: var(--purple); font-size: 36px; }
.empty-state h3 { margin: 12px 0 5px; color: var(--text); font-size: 25px; }
.empty-state p { margin: 0; }
.message { max-width: 82%; margin-bottom: 20px; padding: 14px 17px; border-radius: 17px; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
.message.user { margin-left: auto; border-bottom-right-radius: 5px; background: #7155e8; }
.message.assistant { margin-right: auto; border: 1px solid var(--line); border-bottom-left-radius: 5px; background: rgba(255,255,255,.045); }
.message.status { color: var(--muted); font-size: 13px; background: transparent; }
.composer { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 12px; margin: 0 24px; padding: 12px 12px 12px 18px; border: 1px solid rgba(255,255,255,.14); border-radius: 18px; background: rgba(5,5,9,.55); }
.composer:focus-within { border-color: rgba(139,108,255,.65); }
.composer textarea { width: 100%; max-height: 140px; resize: none; border: 0; outline: 0; color: var(--text); background: transparent; line-height: 1.5; }
.send-button { width: 39px; height: 39px; border: 0; border-radius: 12px; color: white; background: var(--purple); font-size: 21px; cursor: pointer; }
.composer-meta { display: flex; justify-content: space-between; padding: 10px 28px 18px; color: #676675; font-size: 11px; }

.game-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.game-card { position: relative; min-height: 250px; overflow: hidden; padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); transition: transform .2s, border-color .2s; }
.game-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent), white 18%); }
.game-icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: color-mix(in srgb, var(--accent), transparent 80%); font-size: 25px; }
.game-card h3 { margin: 54px 0 8px; font-size: 23px; }
.game-card p { margin: 0; color: var(--muted); line-height: 1.6; }
.game-card .play-label { position: absolute; right: 22px; top: 24px; color: var(--accent); font-size: 13px; }

.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.management-card { padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); }
.management-wide { grid-column: 1 / -1; }
.management-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 22px; }
.management-heading h3 { margin: 4px 0 0; font-size: 22px; }
.management-kicker { color: var(--purple); font-family: ui-monospace, monospace; font-size: 10px; letter-spacing: .18em; }
.management-count { display: grid; place-items: center; min-width: 34px; height: 34px; padding: 0 9px; border-radius: 999px; background: rgba(139,108,255,.14); color: #cfc4ff; font-size: 13px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px rgba(68,215,208,.7); }
.inline-form { display: flex; align-items: end; gap: 12px; }
.inline-form label { flex: 1; display: grid; gap: 7px; color: var(--muted); font-size: 12px; }
.inline-form select, .invite-result input { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 11px; outline: 0; color: var(--text); background: #11121a; }
.inline-form select:focus, .invite-result input:focus { border-color: var(--purple); }
.invite-result { margin-top: 18px; padding-top: 17px; border-top: 1px solid var(--line); }
.invite-result p { margin: 0 0 10px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.copy-row { display: grid; grid-template-columns: 1fr auto; gap: 9px; }
.invite-result input { font-family: ui-monospace, monospace; font-size: 12px; }
.management-list { display: grid; gap: 8px; }
.management-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 13px 0; border-top: 1px solid rgba(255,255,255,.07); }
.management-row:first-child { border-top: 0; }
.management-row > div:first-child { min-width: 0; display: grid; gap: 4px; }
.management-row strong { overflow: hidden; text-overflow: ellipsis; font-size: 14px; }
.management-row span:not(.status-badge) { color: var(--muted); font-size: 11px; line-height: 1.5; }
.management-actions { display: flex; align-items: center; gap: 8px; }
.status-badge { flex: 0 0 auto; padding: 5px 8px; border-radius: 999px; font-size: 10px; }
.status-active, .status-available { color: #81eee8; background: rgba(68,215,208,.12); }
.status-disabled, .status-expired { color: #aaa8b5; background: rgba(255,255,255,.06); }
.status-used { color: #cfc4ff; background: rgba(139,108,255,.14); }
.button-small { padding: 7px 10px; border-radius: 9px; font-size: 11px; }
.management-empty { margin: 0; color: var(--muted); font-size: 13px; }
.account-form { margin-top: 25px; }

footer { display: flex; justify-content: space-between; width: min(1120px, calc(100% - 40px)); margin: 20px auto 0; padding: 35px 0 45px; border-top: 1px solid var(--line); color: #656472; font-size: 12px; letter-spacing: .08em; }

.auth-dialog { width: min(430px, calc(100% - 30px)); padding: 30px; border: 1px solid rgba(255,255,255,.15); border-radius: 24px; color: var(--text); background: #15151e; box-shadow: 0 24px 90px rgba(0,0,0,.65); }
.auth-dialog::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(8px); }
.dialog-close { position: absolute; top: 15px; right: 18px; border: 0; color: var(--muted); background: transparent; font-size: 27px; cursor: pointer; }
.auth-heading { display: grid; justify-items: center; text-align: center; }
.auth-heading h2 { margin: 14px 0 4px; }
.auth-heading p { margin: 0; color: var(--muted); }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; margin: 25px 0 20px; padding: 4px; border-radius: 12px; background: rgba(255,255,255,.045); }
.auth-tabs button { padding: 9px; border: 0; border-radius: 9px; color: var(--muted); background: transparent; cursor: pointer; }
.auth-tabs button.active { color: var(--text); background: rgba(255,255,255,.09); }
.auth-form { display: grid; gap: 14px; }
.auth-form label { display: grid; gap: 7px; color: #b9b7c4; font-size: 13px; }
.auth-form input { width: 100%; padding: 12px 13px; border: 1px solid var(--line); border-radius: 11px; outline: 0; color: var(--text); background: rgba(0,0,0,.2); }
.auth-form input:focus { border-color: var(--purple); }
.auth-form small { color: var(--muted); }
.form-error { min-height: 20px; margin: 14px 0 0; color: var(--danger); font-size: 13px; text-align: center; }
.toast { position: fixed; z-index: 30; left: 50%; bottom: 24px; transform: translate(-50%, 20px); padding: 11px 16px; border: 1px solid var(--line); border-radius: 12px; opacity: 0; pointer-events: none; background: #20202a; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 800px) {
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { display: none; }
  .hero { min-height: 560px; }
  .section-heading { align-items: start; flex-direction: column; gap: 15px; }
  .chat-shell { grid-template-columns: 1fr; }
  .conversation-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .conversation-list { display: flex; overflow-x: auto; }
  .conversation-item { min-width: 170px; }
  .messages { height: 480px; }
  .game-grid { grid-template-columns: 1fr 1fr; }
  .admin-grid { grid-template-columns: 1fr; }
  .management-wide { grid-column: auto; }
}

@media (max-width: 540px) {
  .site-header, main, footer { width: min(100% - 26px, 1120px); }
  .brand > span:last-child { display: none; }
  .hero { min-height: 510px; padding-top: 50px; }
  .hero > p { font-size: 16px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .module-section { padding: 65px 0; }
  .locked-card { padding: 28px 18px; }
  .locked-card.compact { grid-template-columns: 1fr; text-align: center; }
  .game-grid { grid-template-columns: 1fr; }
  .user-chip { display: none; }
  .account-area { gap: 6px; }
  .account-area .button { padding: 9px 10px; font-size: 12px; }
  .inline-form { align-items: stretch; flex-direction: column; }
  .management-row { align-items: flex-start; flex-direction: column; gap: 10px; }
  .management-actions { width: 100%; justify-content: space-between; }
  .copy-row { grid-template-columns: 1fr; }
  .messages { height: 430px; padding: 22px 14px; }
  .message { max-width: 92%; }
  .composer { margin: 0 10px; }
  .composer-meta { padding-inline: 14px; }
}