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ease}.theme-toggle:hover{background:var(--secondary-button-bg-hover);transform:translateY(-1px)}.theme-toggle span{font-size:1.2rem}.room-topbar .theme-toggle{width:38px;height:38px}.app-background{min-height:100vh;background:var(--page-gradient);position:relative;overflow-x:hidden}.landing-shell{position:relative;min-height:100vh;padding:0 clamp(32px,7vw,96px) 120px;color:var(--text-color);display:block}.background-orbs{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 20% 20%,rgba(99,102,241,.35),transparent 45%),radial-gradient(circle at 80% 10%,rgba(14,165,233,.25),transparent 50%),radial-gradient(circle at 50% 80%,rgba(251,146,60,.18),transparent 40%);filter:blur(0);opacity:.75;pointer-events:none;animation:floatOrbs 16s ease-in-out infinite alternate}@keyframes floatOrbs{0%{transform:translateZ(0) scale(1)}to{transform:translate3d(0,-12px,0) 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h1{font-size:clamp(2.4rem,5vw,3.2rem);margin:0;font-weight:700;line-height:1.1}.hero-copy p{margin:0;color:var(--subtle-text);font-size:1.05rem;line-height:1.6}html[data-theme=light] .hero-copy h1{color:#0f172a}html[data-theme=light] .hero-copy p{color:#475569}.hero-buttons{display:flex;flex-wrap:wrap;gap:16px}.hero-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#0b1120;font-weight:600;padding:14px 24px;border-radius:14px;cursor:pointer;box-shadow:0 18px 45px #6366f159;transition:transform .2s ease,box-shadow .2s ease}.hero-primary:hover{transform:translateY(-2px);box-shadow:0 24px 55px #6366f173}.hero-ghost{padding:14px 24px;border-radius:14px;font-weight:600;background:#94a3b81f;border:1px solid rgba(148,163,184,.28);color:var(--text-color);cursor:pointer;transition:background .2s ease,transform .2s ease}.hero-ghost:hover{background:#94a3b838;transform:translateY(-2px)}.hero-preview{display:flex;justify-content:center}.hero-mock-card{background:#0f172ab8;border:1px 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p{margin:0;color:var(--subtle-text);max-width:640px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:24px}.feature-card{background:#0f172a99;border:1px solid rgba(148,163,184,.18);border-radius:20px;padding:24px;display:flex;align-items:flex-start;gap:16px;box-shadow:0 18px 60px #0f172a4d}.feature-card h3{margin:0;font-size:1.2rem}.feature-card p{margin:0;color:var(--subtle-text);line-height:1.5}.feature-icon{width:48px;height:48px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;font-size:1.6rem;background:#6366f12e;color:#e0e7ff}.feature-content{display:grid;gap:6px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#020617b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:24px;z-index:50}.modal-card{background:#0f172ae6;border:1px solid rgba(148,163,184,.2);border-radius:24px;width:min(480px,90vw);box-shadow:0 40px 90px #0206178c;overflow:hidden}html[data-theme=light] .modal-card{background:#fffffff5;border:1px solid rgba(15,23,42,.12)}.modal-form{padding:clamp(24px,4vw,36px);display:grid;gap:18px}.modal-form h3{margin:0;font-size:1.6rem}.modal-form p{margin:0;color:var(--subtle-text)}html[data-theme=light] .modal-form p,html[data-theme=light] .modal-form label,html[data-theme=light] .modal-form input,html[data-theme=light] .modal-form select{color:#0f172a}html[data-theme=light] .modal-form input,html[data-theme=light] .modal-form select{background:#f8fafcf2;border:1px solid rgba(15,23,42,.12)}.input-with-button{display:flex;gap:10px}.input-with-button input{flex:1}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:10px}.modal-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#0b1120;font-weight:600;padding:12px 24px;border-radius:12px;cursor:pointer;box-shadow:0 15px 40px #6366f159;transition:transform .2s ease,box-shadow .2s ease}.modal-primary:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.modal-primary:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 20px 45px #6366f173}.modal-alert,.hero-alert{margin:0}.hero-alert{max-width:420px}.user-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--secondary-button-bg);border:1px solid var(--secondary-button-border);color:var(--text-color);font-weight:500}.user-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#6366f1e6,#0ea5e9e6);color:#0b1120;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}.user-name{max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.join-card{display:flex;flex-direction:column;gap:24px;align-items:center;text-align:center}.join-card h1{font-size:clamp(2rem,5vw,3rem);margin:0}.join-form{display:grid;gap:16px;width:min(420px,92vw)}.form-field{display:grid;gap:8px;text-align:left}.form-field label{font-weight:600;color:var(--muted-text)}.form-field input,.form-select{background:var(--input-bg);border:1px solid var(--input-border);border-radius:12px;padding:12px 16px;color:inherit;font-size:1rem;transition:border .2s ease,box-shadow .2s ease,background .2s ease}.form-select.compact{padding:10px 14px;min-height:0}.form-field input:focus,.form-select:focus{border-color:var(--input-border-focus);box-shadow:0 0 0 3px var(--input-shadow-focus)}.primary-button{background:linear-gradient(135deg,#6366f1,#0ea5e9);border-radius:12px;padding:14px 20px;font-weight:600;cursor:pointer;box-shadow:0 16px 30px #0ea5e940;transition:transform .2s ease,box-shadow .2s ease;color:#0b1120}.primary-button:hover{transform:translateY(-1px);box-shadow:0 20px 40px #4f46e559}.primary-button:disabled{cursor:not-allowed;opacity:.6;transform:none;box-shadow:none}.subtle-text{color:var(--subtle-text);font-size:.9rem}.room-container{display:flex;flex-direction:column;gap:24px}.room-header{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center}.room-title{display:flex;flex-direction:column;gap:6px}.room-title h2{margin:0;font-size:clamp(1.6rem,4vw,2rem)}.room-title span{font-size:.95rem;color:var(--muted-text)}.room-actions{display:flex;gap:12px;flex-wrap:wrap}.secondary-button{background:var(--secondary-button-bg);border:1px solid var(--secondary-button-border);border-radius:10px;padding:10px 16px;color:inherit;font-weight:500;cursor:pointer;transition:background .2s ease,border .2s ease,transform .2s ease}.secondary-button:hover:not(:disabled){background:var(--secondary-button-bg-hover);transform:translateY(-1px)}.secondary-button:disabled{opacity:.6;cursor:not-allowed}.ghost-button{background:var(--secondary-button-bg);border:1px solid var(--secondary-button-border);border-radius:999px;padding:8px 14px;color:inherit;font-weight:500;cursor:pointer;transition:background .2s ease,transform .2s ease,border .2s ease}.ghost-button:hover{background:var(--secondary-button-bg-hover);transform:translateY(-1px)}.danger-button{background:var(--danger-bg);border:1px solid var(--danger-border);border-radius:10px;padding:10px 18px;color:var(--danger-text);font-weight:600;cursor:pointer;transition:background .2s ease,transform .2s ease,border .2s ease}.danger-button:hover{background:var(--danger-hover);transform:translateY(-1px)}.participants-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.participant-card{background:var(--card-bg);border:1px solid 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