:root{--color-primary: #174C46;--color-ink: #172B29;--color-background: #F7F3EA;--color-accent: #C7A66B;--color-surface: #FFFFFF;--color-muted: #526260;--color-success: #176A42;--color-warning: #8A5700;--color-danger: #B42332;--color-focus: #2457D6;--font-ui: "Source Sans 3", sans-serif;--radius-control: 10px;--radius-card: 16px;--control-min-height: 44px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--color-background);color:var(--color-ink);font-family:var(--font-ui);font-size:16px;line-height:1.5}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.start-page{max-width:640px;margin:0 auto;padding:64px 24px}.start-page__top{display:flex;justify-content:flex-end;margin-bottom:48px}.start-page h1{font-size:34px;line-height:1.25;margin:0 0 12px}.start-page__sub{color:var(--color-muted);margin:0 0 32px}.btn-primary{min-height:var(--control-min-height);padding:0 24px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-control);font-family:var(--font-ui);font-size:16px;cursor:pointer}.btn-primary:hover{opacity:.92}.lang-btn{min-height:36px;padding:0 12px;background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-muted);border-radius:var(--radius-control);font-family:var(--font-ui);cursor:pointer}.lang-btn--active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}