:root{--primary: #4f46e5;--primary-light: #818cf8;--primary-dark: #3730a3;--secondary: #06b6d4;--surface: #ffffff;--background: #f8fafc;--surface-alt: #f1f5f9;--text: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--border: #e2e8f0;--border-hover: #cbd5e1;--nav-bg: #ffffff;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--highlight: #ef4444}#mode-nav{position:sticky;top:0;z-index:100}#mode-nav .btn{padding:8px 20px;border-radius:20px;font-weight:500}#mode-nav .btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}#mode-nav .btn.btn-outline.active{background:var(--primary);color:#fff}.hymn-list-panel{overflow-y:auto;max-height:calc(100vh - 120px)}.hymn-list{display:flex;flex-direction:column;gap:5px}.hymn-item{padding:12px 15px;border-radius:6px;cursor:pointer;transition:background .15s;border:1px solid transparent}.hymn-item:hover{background:#f0f0f0}.hymn-item.selected{background:#e3f2fd;border-color:#90caf9}.hymn-title{font-weight:500;color:#333;margin-bottom:3px}.hymn-number{font-size:.75rem;color:#999}.hymn-detail-panel{overflow-y:auto;max-height:calc(100vh - 120px)}.hymn-detail-panel pre{font-family:Courier New,monospace;line-height:1.6}#searchInput{margin-bottom:10px;font-size:.9rem}.auth-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-primary, #121212);z-index:9999;display:flex;align-items:center;justify-content:center;flex-direction:column;color:var(--text-primary, #ffffff);font-family:Inter,sans-serif;transition:opacity .5s ease,visibility .5s ease}.auth-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.auth-container{background:var(--bg-secondary, #1e1e1e);padding:3rem;border-radius:1.5rem;box-shadow:0 20px 40px #0006;text-align:center;max-width:400px;width:90%;border:1px solid rgba(255,255,255,.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.auth-logo{font-size:2.5rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(135deg,#6366f1,#a855f7);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.auth-title{font-size:1.25rem;margin-bottom:2rem;color:var(--text-secondary, #b3b3b3)}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.auth-input-group{position:relative;text-align:left}.auth-input{width:100%;padding:1rem 1.25rem;background:#ffffff0d;border:2px solid rgba(255,255,255,.1);border-radius:.75rem;color:#fff;font-size:1.1rem;transition:all .2s ease;outline:none;box-sizing:border-box}.auth-input:focus{border-color:#6366f1;background:#ffffff14;box-shadow:0 0 0 4px #6366f133}.auth-submit{background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff;border:none;padding:1rem;border-radius:.75rem;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.auth-submit:hover{transform:translateY(-2px);box-shadow:0 10px 20px #6366f14d}.auth-submit:active{transform:translateY(0)}.auth-form.shake{animation:shake .5s cubic-bezier(.36,.07,.19,.97) both}@keyframes shake{10%,90%{transform:translate3d(-1px,0,0)}20%,80%{transform:translate3d(2px,0,0)}30%,50%,70%{transform:translate3d(-4px,0,0)}40%,60%{transform:translate3d(4px,0,0)}}.auth-error{color:#ef4444;font-size:.9rem;margin-top:1rem;min-height:1.2rem;transition:opacity .2s ease}.auth-overlay .spinner{display:none;width:24px;height:24px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:auth-spin 1s ease-in-out infinite;margin:0 auto}@keyframes auth-spin{to{transform:rotate(360deg)}}.auth-loading .auth-submit span{display:none}.auth-loading .auth-submit .spinner{display:block}