/* Shared design tokens and controls: client area, cart and standalone invoice. */
:root{--dvh-font:Open Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;--dvh-bg:#f8fafc;--dvh-surface:#fff;--dvh-surface-soft:#f1f5f9;--dvh-text:#0f172a;--dvh-muted:#64748b;--dvh-primary:#2563eb;--dvh-primary-dark:#1d4ed8;--dvh-primary-soft:#dbeafe;--dvh-secondary:#0f172a;--dvh-danger:#dc2626;--dvh-border:#e2e8f0;--dvh-radius-sm:10px;--dvh-radius:14px;--dvh-radius-lg:22px;--dvh-shadow:0 1px 2px #0f172a0a,0 12px 30px -18px #0f172a33;--dvh-shadow-brand:0 18px 40px -20px #2563eb8c}
.btn,.module-client-area :is(button:not([type]),button[type=submit],input[type=submit]){box-sizing:border-box;border:1px solid transparent;border-radius:var(--dvh-radius-sm);min-height:40px;padding:8px 14px;font-family:var(--dvh-font);font-size:13px;font-weight:700;line-height:1.5;text-align:center;vertical-align:middle;cursor:pointer;transition:color .16s,box-shadow .16s,background-color .16s,border-color .16s}
.btn-primary,.btn-success,.module-client-area :is(button:not([type]),button[type=submit],input[type=submit]):not(.btn){color:#fff;background:var(--dvh-primary);border-color:var(--dvh-primary);box-shadow:var(--dvh-shadow-brand)}
.btn-primary:is(:hover,:focus,:active),.btn-success:is(:hover,:focus,:active),.btn-primary:not(:disabled):not(.disabled):active,.btn-success:not(:disabled):not(.disabled):active,.module-client-area :is(button:not([type]),button[type=submit],input[type=submit]):not(.btn):is(:hover,:focus){color:#fff;background:var(--dvh-primary-dark);border-color:var(--dvh-primary-dark)}
.btn-default,.btn-light{color:var(--dvh-text);background:var(--dvh-surface);border-color:var(--dvh-border)}
.btn-default:is(:hover,:focus),.btn-light:is(:hover,:focus){color:var(--dvh-primary);background:#eff6ff;border-color:#93c5fd}
.btn-outline-primary{color:var(--dvh-primary);border-color:#93c5fd}
.btn-outline-primary:is(:hover,:focus){color:#fff;background:var(--dvh-primary);border-color:var(--dvh-primary)}
.btn-danger{color:#fff;background:var(--dvh-danger);border-color:var(--dvh-danger)}
.btn-sm,.btn-group-sm>.btn{min-height:32px;padding:5px 10px;font-size:12px}
.btn-lg,.btn-group-lg>.btn{min-height:48px;padding:11px 20px;font-size:15px}
.btn-link{min-height:0;padding:0;color:var(--dvh-primary);background:transparent;border-color:transparent;box-shadow:none}
.btn:focus-visible,.module-client-area :is(button,input[type=submit]):focus-visible{outline:2px solid var(--dvh-primary);outline-offset:3px}
.btn:disabled,.btn.disabled,.module-client-area :is(button,input[type=submit]):disabled{cursor:default;opacity:.65;transform:none;box-shadow:none}
@media (prefers-reduced-motion:reduce){.btn,.module-client-area :is(button,input[type=submit]){transition:none}}