:root{--bg:#f5f6f8;--surface:#fff;--border:#d9dce1;--text:#1c1f24;--text-muted:#6b7280;--accent:#2f6feb;--accent-contrast:#fff;--error-bg:#fdeceb;--error-border:#e5534b;--error-text:#8a1f16;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font:16px/145% system-ui,Segoe UI,Roboto,sans-serif}:root[data-theme=dark]{--bg:#14161a;--surface:#1b1e24;--border:#2e333c;--text:#e6e8eb;--text-muted:#9aa1ac;--accent:#5b9dff;--accent-contrast:#0b1220;--error-bg:#3a1c1c;--error-border:#e5534b;--error-text:#ffb4ac;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}.site-header{align-items:center;gap:10px;margin-bottom:12px;display:flex}.site-header__brand{color:var(--accent);white-space:nowrap;font-size:15px;font-weight:700;text-decoration:none}.site-header__brand:hover{text-decoration:underline}.site-header__divider{color:var(--text-muted);font-weight:400}.site-header__title{color:var(--text-muted);white-space:nowrap;font-size:15px;font-weight:600}.toolbar-spacer{flex:1}.btn,.toggle-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px}.btn:hover,.toggle-btn:hover{border-color:var(--accent)}.icon-btn{padding:6px 10px}.app{max-width:640px;margin:0 auto;padding:24px 16px 48px}.app-main{justify-content:center;display:flex}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;width:100%;max-width:32rem;padding:24px;box-shadow:0 10px 30px -20px #0006}.field-label{letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);margin-bottom:6px;font-size:12px;font-weight:600;display:block}.field-input{background:var(--bg);width:100%;color:var(--text);border:1px solid var(--border);border-radius:8px;margin-bottom:20px;padding:10px 12px;font-size:16px}.field-input:focus{border-color:var(--accent);outline:none}.field-input--lg{padding:12px 14px;font-size:24px;font-weight:600}.tip-presets{flex-wrap:wrap;gap:8px;margin-bottom:10px;display:flex}.tip-preset{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:0 0;border-radius:8px;padding:8px 14px;font-size:14px;font-weight:600}.tip-preset:hover{background:var(--accent);color:var(--accent-contrast);opacity:.85}.tip-preset--active{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}.people-stepper{align-items:stretch;max-width:12rem;margin-bottom:20px;display:flex}.people-stepper .btn{flex:none;padding:0 16px;font-size:18px;line-height:1}.people-stepper__input{text-align:center;border-left:none;border-right:none;border-radius:0;margin-bottom:0}.people-stepper .btn:first-child{border-top-right-radius:0;border-bottom-right-radius:0}.people-stepper .btn:last-child{border-top-left-radius:0;border-bottom-left-radius:0}.divider{border:none;border-top:1px solid var(--border);margin:8px 0 20px}.results-grid{text-align:center;grid-template-columns:1fr 1fr;gap:16px;display:grid}.results-grid__label{letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px;font-size:12px;font-weight:600}.results-grid__value{color:var(--text);font-size:22px;font-weight:700}.results-grid__value--accent{color:var(--accent)}.tool-card__footnote{text-align:center;color:var(--text-muted);margin:24px 0 0;font-size:12px}