.header{width:100%;padding:var(--spacing-lg) var(--spacing-xl);background:var(--color-surface);border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10;box-shadow:var(--shadow-subtle)}.header-content{max-width:var(--max-content-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between}.header-logo{font-size:1.375rem;font-weight:700;color:var(--color-text-primary);letter-spacing:-.02em}.header-nav{display:flex;gap:var(--spacing-md)}.header-nav__placeholder{font-size:.875rem;color:var(--color-text-secondary)}.layout{min-height:100vh;display:flex;flex-direction:column;background:var(--color-background);color:var(--color-text-primary)}.layout-main{flex:1;width:100%;max-width:var(--max-content-width);margin:0 auto;padding:var(--spacing-2xl) var(--spacing-xl)}.contribution-list{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.contribution-list__loading,.contribution-list__empty{text-align:center;color:#666;padding:2rem;font-style:italic}.contribution-item{background:#f9f9f9;border-left:4px solid #007bff;padding:1rem;border-radius:4px}.contribution-item__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;font-size:.875rem}.contribution-item__author{font-weight:600;color:#333}.contribution-item__timestamp{color:#999;font-size:.8125rem}.contribution-item__content{margin:.5rem 0;line-height:1.6;color:#333;white-space:pre-wrap;word-wrap:break-word}.contribution-item__tone{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.75rem;font-weight:500;text-transform:capitalize}.contribution-item__tone--neutral{background:#e0e0e0;color:#666}.contribution-item__tone--positive{background:#d4edda;color:#155724}.contribution-item__tone--negative{background:#f8d7da;color:#721c24}.contribution-item__tone--curious{background:#d1ecf1;color:#0c5460}.contribution-item__tone--assertive{background:#fff3cd;color:#856404}.contribution-composer{background:#fff;border:1px solid #ddd;border-radius:8px;padding:1.5rem;margin-top:2rem}.contribution-composer--disabled{background:#f5f5f5;text-align:center}.contribution-composer__disabled-message{color:#666;font-style:italic;margin:0}.contribution-composer__input-group{margin-bottom:1rem}.contribution-composer__label{display:block;font-weight:600;margin-bottom:.5rem;color:#333}.contribution-composer__textarea{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-family:inherit;font-size:1rem;resize:vertical;min-height:100px}.contribution-composer__textarea:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 3px #007bff1a}.contribution-composer__tone-group{margin-bottom:1rem}.contribution-composer__tone-label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem;color:#555}.contribution-composer__tone-chips{display:flex;gap:.5rem;flex-wrap:wrap}.contribution-composer__tone-chip{padding:.5rem 1rem;border:2px solid transparent;border-radius:20px;background:#f0f0f0;color:#666;font-size:.875rem;font-weight:500;text-transform:capitalize;cursor:pointer;transition:all .2s}.contribution-composer__tone-chip:hover:not(:disabled){background:#e0e0e0}.contribution-composer__tone-chip:disabled{opacity:.6;cursor:not-allowed}.contribution-composer__tone-chip--active{border-color:currentColor}.contribution-composer__tone-chip--neutral.contribution-composer__tone-chip--active{background:#e0e0e0;color:#666}.contribution-composer__tone-chip--positive.contribution-composer__tone-chip--active{background:#d4edda;color:#155724}.contribution-composer__tone-chip--negative.contribution-composer__tone-chip--active{background:#f8d7da;color:#721c24}.contribution-composer__tone-chip--curious.contribution-composer__tone-chip--active{background:#d1ecf1;color:#0c5460}.contribution-composer__tone-chip--assertive.contribution-composer__tone-chip--active{background:#fff3cd;color:#856404}.contribution-composer__error{color:#dc3545;font-size:.875rem;margin:.5rem 0}.contribution-composer__submit{width:100%;padding:.75rem 1.5rem;background:#007bff;color:#fff;border:none;border-radius:4px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.contribution-composer__submit:hover:not(:disabled){background:#0056b3}.contribution-composer__submit:disabled{background:#ccc;cursor:not-allowed}.landing-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center}.landing-page__content{display:flex;flex-direction:column;gap:var(--spacing-lg);align-items:center;max-width:680px}.landing-page__title{margin:0;color:var(--color-text-primary);font-size:3rem;font-weight:700;letter-spacing:-.02em;line-height:1.1}.landing-page__description{color:var(--color-text-secondary);font-size:1.125rem;line-height:1.7}.landing-page__cta{margin-top:var(--spacing-md);padding:.875rem 1.75rem;background:var(--color-accent);color:var(--color-text-inverse);border-radius:var(--radius-pill);text-decoration:none;font-weight:600;font-size:1rem;box-shadow:var(--shadow-subtle);transition:transform .2s ease,box-shadow .2s ease,background .2s ease}.landing-page__cta:hover{background:var(--color-accent-hover);color:var(--color-text-inverse);box-shadow:var(--shadow-elevated);transform:translateY(-1px)}.conversation-page{display:flex;flex-direction:column;gap:var(--spacing-lg, 1rem);padding:var(--spacing-2xl, 2rem);background:var(--color-surface, #fff);border-radius:var(--radius-lg, 8px);box-shadow:var(--shadow-subtle, 0 1px 3px rgba(0,0,0,.1))}.conversation-page__header{display:flex;flex-direction:column;gap:.5rem}.conversation-page__title{margin:0;color:var(--color-text-primary, #333);font-size:2rem;font-weight:700;letter-spacing:-.01em;line-height:1.2}.conversation-page__slug{font-size:.875rem;color:var(--color-text-secondary, #666);font-family:monospace;margin:0}.conversation-page__description{color:var(--color-text-secondary, #666);line-height:1.7;margin:0}.conversation-page__meta{display:flex;flex-direction:column;gap:var(--spacing-md, 1rem);padding:var(--spacing-md, 1rem);background:var(--color-surface-muted, #f9f9f9);border-radius:var(--radius-md, 6px);border:1px solid var(--color-border, #ddd);margin-top:var(--spacing-md, 1rem)}.conversation-page__meta-item{display:flex;gap:var(--spacing-sm, .5rem)}.conversation-page__meta-label{font-size:.875rem;font-weight:600;color:var(--color-text-secondary, #666);min-width:120px}.conversation-page__meta-value{font-size:.875rem;font-family:monospace;color:var(--color-text-primary, #333)}.conversation-page__contributions{margin-top:var(--spacing-lg, 1rem)}.conversation-page__section-title{font-size:1.5rem;font-weight:600;color:var(--color-text-primary, #333);margin:0 0 1rem}:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;--color-background: #f5f7fb;--color-surface: #ffffff;--color-surface-muted: #f1f5f9;--color-border: #e2e8f0;--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-text-inverse: #ffffff;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-accent-muted: #dbeafe;--shadow-subtle: 0 12px 40px rgba(15, 23, 42, .07);--shadow-elevated: 0 24px 80px rgba(15, 23, 42, .12);--max-content-width: 1120px;--spacing-2xs: .25rem;--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4.5rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--radius-pill: 999px;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media(prefers-color-scheme:dark){:root{color-scheme:dark;--color-background: #0f172a;--color-surface: #111827;--color-surface-muted: #1f2937;--color-border: rgba(148, 163, 184, .24);--color-text-primary: #e2e8f0;--color-text-secondary: #94a3b8;--color-text-inverse: #0f172a;--color-accent: #60a5fa;--color-accent-hover: #3b82f6;--color-accent-muted: rgba(96, 165, 250, .2);--shadow-subtle: 0 12px 40px rgba(15, 23, 42, .3);--shadow-elevated: 0 24px 80px rgba(15, 23, 42, .55)}}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--color-background);color:var(--color-text-primary)}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-accent-hover)}button{border-radius:var(--radius-pill);border:1px solid transparent;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;font-family:inherit;background:var(--color-accent);color:var(--color-text-inverse);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;box-shadow:var(--shadow-subtle)}button:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-elevated);transform:translateY(-1px)}button:focus-visible{outline:3px solid var(--color-accent-muted);outline-offset:2px}main{display:block}