.rds-tools-suite,.rds-tool {
    --rds-tool-bg:#fff;
    --rds-tool-soft:#f8f7fb;
    --rds-tool-text:#282432;
    --rds-tool-muted:#756f7e;
    --rds-tool-border:rgba(52,43,73,.11);
    --rds-tool-accent:#7155a3;
    --rds-tool-accent-soft:rgba(113,85,163,.10);
    --rds-tool-danger:#a13d4c;
    box-sizing:border-box;
    color:var(--rds-tool-text);
    font:inherit;
}
.rds-tools-suite *, .rds-tool *, .rds-tools-suite *::before, .rds-tool *::before, .rds-tools-suite *::after, .rds-tool *::after { box-sizing:border-box; }
.rds-tools-suite { display:grid; gap:1rem; margin:1rem 0 2rem; }
.rds-tool { scroll-margin-top:90px; overflow:hidden; margin:1rem 0; background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:20px; }
.rds-tools-suite > .rds-tool { margin:0; }
.rds-tool__head { display:flex; align-items:center; gap:.8rem; padding:1rem 1.1rem; background:var(--rds-tool-soft); border-bottom:1px solid var(--rds-tool-border); }
.rds-tool__icon { display:grid; place-items:center; flex:0 0 auto; width:42px; height:42px; color:var(--rds-tool-accent); background:var(--rds-tool-accent-soft); border-radius:13px; font-size:1.1rem; }
.rds-tool__head h2 { margin:0; color:var(--rds-tool-text); font-size:1.08em; }
.rds-tool__head p { margin:.18rem 0 0; color:var(--rds-tool-muted); font-size:.77em; line-height:1.7; }
.rds-tool__body { padding:1rem 1.1rem 1.1rem; }
.rds-form-grid { display:grid; grid-template-columns:1.3fr repeat(3,1fr); gap:.65rem; }
.rds-tool label { display:block; min-width:0; }
.rds-tool label > span { display:block; margin-bottom:.35rem; color:var(--rds-tool-muted); font-size:.76em; }
.rds-tool input,.rds-tool select { width:100%; min-height:44px; margin:0; padding:.55rem .65rem; color:var(--rds-tool-text); background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:11px; box-shadow:none; font:inherit; font-size:.9em; }
.rds-tool input:focus,.rds-tool select:focus { border-color:var(--rds-tool-accent); outline:2px solid var(--rds-tool-accent-soft); }
.rds-button { display:inline-flex; align-items:center; justify-content:center; min-height:43px; margin-top:.8rem; padding:.55rem 1.1rem; color:#fff; background:var(--rds-tool-accent); border:0; border-radius:11px; cursor:pointer; font:inherit; font-size:.86em; font-weight:700; }
.rds-button:hover { filter:brightness(.96); }
.rds-result { margin-top:.8rem; padding:.9rem; color:var(--rds-tool-text); background:var(--rds-tool-soft); border:1px solid var(--rds-tool-border); border-radius:13px; }
.rds-result > p { margin:0; color:var(--rds-tool-muted); font-size:.84em; }
.rds-result.is-error { color:var(--rds-tool-danger); background:rgba(161,61,76,.08); }
.rds-result-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:.6rem; }
.rds-result-grid article { min-width:0; padding:.75rem; background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:11px; }
.rds-result-grid span,.rds-result-grid small { display:block; color:var(--rds-tool-muted); font-size:.7em; }
.rds-result-grid strong { display:block; margin:.25rem 0; overflow-wrap:anywhere; font-size:.93em; line-height:1.7; }
.rds-result-note { margin:.7rem 0 0!important; color:var(--rds-tool-muted)!important; font-size:.72em!important; line-height:1.8; }
.rds-age-main { display:flex; align-items:baseline; gap:.5rem; }
.rds-age-main strong { color:var(--rds-tool-accent); font-size:2rem; }
.rds-age-main span { font-weight:700; }
.rds-result-metrics { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:.5rem; margin-top:.65rem; }
.rds-result-metrics span { padding:.65rem; text-align:center; background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:10px; font-size:.75em; }
.rds-result-metrics b { display:block; margin-bottom:.15rem; color:var(--rds-tool-accent); font-size:1.05em; }
.rds-calendar-select { max-width:260px; margin-bottom:.75rem; }
.rds-dual-date { display:grid; grid-template-columns:1fr 1fr; gap:.7rem; }
.rds-dual-date fieldset { display:grid; grid-template-columns:repeat(3,1fr); gap:.55rem; min-width:0; margin:0; padding:.8rem; border:1px solid var(--rds-tool-border); border-radius:13px; }
.rds-dual-date legend { padding:0 .35rem; color:var(--rds-tool-accent); font-size:.78em; font-weight:700; }
.rds-calendar-nav { display:flex; align-items:center; justify-content:space-between; gap:.7rem; padding:.9rem 1rem; }
.rds-calendar-nav a { padding:.4rem .65rem; color:var(--rds-tool-accent); background:var(--rds-tool-accent-soft); border-radius:9px; text-decoration:none; font-size:.78em; }
.rds-calendar-nav strong { font-size:.95em; }
.rds-tool--calendar > .rds-calendar { margin:0 1rem 1rem; width:calc(100% - 2rem); }
.rds-calendar__weekdays,.rds-calendar__days { display:grid; grid-template-columns:repeat(7,minmax(0,1fr)); gap:.35rem; }
.rds-calendar__weekdays { margin-bottom:.35rem; color:var(--rds-tool-muted); text-align:center; font-size:.72em; }
.rds-calendar__days > span { position:relative; display:flex; flex-direction:column; align-items:center; justify-content:center; min-height:54px; padding:.25rem; background:var(--rds-tool-soft); border:1px solid transparent; border-radius:11px; }
.rds-calendar__days > span.is-empty { background:transparent; }
.rds-calendar__days > span small { margin-top:.1rem; color:var(--rds-tool-muted); font-size:.63em; }
.rds-calendar__days > span.is-holiday { color:var(--rds-tool-danger); background:rgba(161,61,76,.08); }
.rds-calendar__days > span.has-event::after { content:""; position:absolute; bottom:5px; width:5px; height:5px; border-radius:50%; background:var(--rds-tool-accent); }
.rds-calendar__days > span.is-today { color:#fff; background:var(--rds-tool-accent); }
.rds-calendar__days > span.is-today small { color:rgba(255,255,255,.78); }
.rds-calendar__days > span.is-today::after { background:#fff; }
.rds-calendar-legend { display:flex; flex-wrap:wrap; gap:.5rem 1rem; padding:0 1rem 1rem; color:var(--rds-tool-muted); font-size:.7em; }
.rds-calendar-legend span { display:flex; align-items:center; gap:.3rem; }
.rds-calendar-legend i { width:10px; height:10px; border-radius:3px; }
.rds-calendar-legend .is-today { background:var(--rds-tool-accent); }
.rds-calendar-legend .is-holiday { background:rgba(161,61,76,.25); }
.rds-calendar-legend .has-event { border-radius:50%; background:var(--rds-tool-accent); }
.rds-countdowns { display:grid; gap:.55rem; padding:1rem; }
.rds-countdown { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.75rem .85rem; background:var(--rds-tool-soft); border-radius:12px; }
.rds-countdown strong,.rds-countdown small { display:block; }
.rds-countdown strong { font-size:.84em; }
.rds-countdown small { margin-top:.15rem; color:var(--rds-tool-muted); font-size:.68em; }
.rds-countdown time { flex:0 0 auto; color:var(--rds-tool-accent); font-size:.76em; font-weight:700; }
.rds-big-clock { padding:1.2rem; text-align:center; }
.rds-big-clock time { display:block; direction:ltr; color:var(--rds-tool-accent); font-size:clamp(2rem,8vw,3.6rem); font-weight:900; font-variant-numeric:tabular-nums; letter-spacing:.05em; }
.rds-big-clock span { display:block; margin-top:.3rem; color:var(--rds-tool-muted); font-size:.82em; }
.rds-month-events { display:grid; gap:.55rem; padding:1rem; }
.rds-month-events article { display:grid; grid-template-columns:64px 1fr; gap:.7rem; padding:.7rem; background:var(--rds-tool-soft); border-radius:12px; }
.rds-month-events__date { display:flex; flex-direction:column; align-items:center; justify-content:center; color:var(--rds-tool-accent); background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:10px; }
.rds-month-events__date strong { font-size:1.2em; }
.rds-month-events__date span { color:var(--rds-tool-muted); font-size:.67em; }
.rds-month-events ul { display:grid; gap:.3rem; margin:0; padding:0; list-style:none; }
.rds-month-events li { position:relative; margin:0; padding-right:.75rem; line-height:1.75; font-size:.82em; }
.rds-month-events li::before { content:""; position:absolute; right:0; top:.72em; width:5px; height:5px; border-radius:50%; background:var(--rds-tool-accent); }
.rds-month-events em { display:inline-block; margin-right:.35rem; padding:.02rem .35rem; color:var(--rds-tool-danger); background:rgba(161,61,76,.09); border-radius:999px; font-size:.68em; font-style:normal; }
.rds-empty { margin:1rem; padding:.8rem; color:var(--rds-tool-muted); background:var(--rds-tool-soft); border-radius:11px; }
@media(max-width:760px){
    .rds-form-grid { grid-template-columns:1fr 1fr; }
    .rds-form-grid label:first-child { grid-column:1/-1; }
    .rds-result-grid { grid-template-columns:1fr; }
    .rds-dual-date { grid-template-columns:1fr; }
    .rds-result-metrics { grid-template-columns:1fr; }
}
@media(max-width:520px){
    .rds-form-grid { grid-template-columns:1fr; }
    .rds-form-grid label:first-child { grid-column:auto; }
    .rds-dual-date fieldset { grid-template-columns:1fr; }
    .rds-countdown { align-items:flex-start; flex-direction:column; }
    .rds-calendar__days > span { min-height:44px; font-size:.82em; }
    .rds-month-events article { grid-template-columns:50px 1fr; }
}
@media(prefers-color-scheme:dark){
    .rds-tools-suite,.rds-tool { --rds-tool-bg:#1e1b23; --rds-tool-soft:#28242e; --rds-tool-text:#f5f2f8; --rds-tool-muted:#bcb4c5; --rds-tool-border:rgba(255,255,255,.09); --rds-tool-accent:#bea3eb; --rds-tool-accent-soft:rgba(190,163,235,.12); --rds-tool-danger:#f1a0ad; }
}
@media(prefers-reduced-motion:reduce){.rds-tool *{scroll-behavior:auto!important;transition:none!important;}}

/* نسخه 0.3.0: ابزارهای مستقل */
.rds-tool-button-row { display:flex; flex-wrap:wrap; align-items:center; gap:.55rem; margin-top:.8rem; }
.rds-tool-button-row .rds-button { margin-top:0; }
.rds-button--secondary { color:var(--rds-tool-accent); background:var(--rds-tool-accent-soft); border:1px solid rgba(113,85,163,.2); }
.rds-button--ghost { color:var(--rds-tool-muted); background:transparent; border:1px solid var(--rds-tool-border); }
.rds-button[hidden] { display:none!important; }
.rds-difference-options { display:flex; flex-wrap:wrap; align-items:end; justify-content:space-between; gap:.8rem; margin-bottom:.75rem; }
.rds-difference-options .rds-calendar-select { margin:0; }
.rds-check { display:flex!important; align-items:center; gap:.45rem; padding:.55rem .7rem; color:var(--rds-tool-muted); background:var(--rds-tool-soft); border:1px solid var(--rds-tool-border); border-radius:11px; }
.rds-check input { flex:0 0 auto; width:18px; min-height:18px; height:18px; margin:0; padding:0; }
.rds-check span { margin:0!important; color:inherit!important; font-size:.76em!important; }
.rds-result-metrics--wide { grid-template-columns:repeat(3,minmax(0,1fr)); }
.rds-birthday-details { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.45rem .8rem; margin-top:.7rem; padding:.75rem; background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:11px; }
.rds-birthday-details p { margin:0; color:var(--rds-tool-muted); font-size:.76em; line-height:1.8; }
.rds-birthday-details strong { color:var(--rds-tool-text); }
.rds-tool-help { margin-top:1rem; padding:.85rem 1rem; color:var(--rds-tool-muted); background:var(--rds-tool-soft); border-radius:13px; }
.rds-tool-help h3 { margin:0 0 .35rem; color:var(--rds-tool-text); font-size:.9em; }
.rds-tool-help p { margin:0; font-size:.78em; line-height:1.95; }
.rds-tool-related { display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:.55rem 1rem; margin-top:1rem; padding-top:.85rem; border-top:1px solid var(--rds-tool-border); }
.rds-tool-related > strong { font-size:.78em; }
.rds-tool-related > div { display:flex; flex-wrap:wrap; gap:.4rem; }
.rds-tool-related a { padding:.35rem .6rem; color:var(--rds-tool-accent); background:var(--rds-tool-accent-soft); border-radius:999px; font-size:.72em; text-decoration:none; }
.rds-tool-related a:hover { filter:brightness(.97); }
@media(max-width:760px){
    .rds-result-metrics--wide { grid-template-columns:repeat(2,minmax(0,1fr)); }
    .rds-birthday-details { grid-template-columns:1fr; }
}
@media(max-width:520px){
    .rds-tool-button-row { align-items:stretch; flex-direction:column; }
    .rds-tool-button-row .rds-button { width:100%; }
    .rds-difference-options { align-items:stretch; flex-direction:column; }
    .rds-difference-options .rds-calendar-select { max-width:none; width:100%; }
    .rds-result-metrics--wide { grid-template-columns:1fr; }
    .rds-tool-related { align-items:flex-start; flex-direction:column; }
}
.rds-tools-suite .rds-tool-related { display:none; }


/* نسخه 0.5.0: مناسبت‌های سال، شمارش معکوس و روز تولد */
.rds-countdown-featured { display:grid; grid-template-columns:1fr auto; align-items:center; gap:.25rem .8rem; margin-bottom:.75rem; padding:1rem; background:var(--rds-tool-accent-soft); border:1px solid var(--rds-tool-border); border-radius:14px; }
.rds-countdown-featured span,.rds-countdown-featured small { color:var(--rds-tool-muted); font-size:.72em; }
.rds-countdown-featured strong { font-size:.96em; line-height:1.75; }
.rds-countdown-featured b { grid-column:2; grid-row:1/4; align-self:center; padding:.3rem .65rem; color:var(--rds-tool-accent); background:var(--rds-tool-bg); border-radius:999px; font-size:.75em; }
.rds-tool__body > .rds-countdowns { padding:0; }
.rds-year-events-picker { display:flex; align-items:end; gap:.65rem; margin-bottom:.8rem; padding:.8rem; background:var(--rds-tool-soft); border:1px solid var(--rds-tool-border); border-radius:13px; }
.rds-year-events-picker label { flex:1; max-width:280px; }
.rds-year-events-picker .rds-button { margin:0; }
.rds-year-events-summary { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:.6rem; }
.rds-year-events-summary article { padding:.8rem; text-align:center; background:var(--rds-tool-soft); border:1px solid var(--rds-tool-border); border-radius:12px; }
.rds-year-events-summary span,.rds-year-events-summary small { display:block; color:var(--rds-tool-muted); font-size:.69em; }
.rds-year-events-summary strong { display:block; margin:.2rem 0; color:var(--rds-tool-accent); font-size:1.15em; }
.rds-year-event-filters { display:flex; flex-wrap:wrap; gap:.4rem; margin:.8rem 0; }
.rds-year-event-filters button { padding:.36rem .62rem; color:var(--rds-tool-muted); background:var(--rds-tool-soft); border:1px solid var(--rds-tool-border); border-radius:999px; cursor:pointer; font:inherit; font-size:.72em; }
.rds-year-event-filters button.is-active { color:var(--rds-tool-accent); background:var(--rds-tool-accent-soft); font-weight:800; }
.rds-year-events-list { display:grid; gap:.75rem; }
.rds-year-events-month { overflow:hidden; border:1px solid var(--rds-tool-border); border-radius:14px; }
.rds-year-events-month > header { display:flex; align-items:center; justify-content:space-between; gap:.7rem; padding:.7rem .85rem; background:var(--rds-tool-soft); border-bottom:1px solid var(--rds-tool-border); }
.rds-year-events-month h3 { margin:0; color:var(--rds-tool-text); font-size:.9em; }
.rds-year-events-month header span { color:var(--rds-tool-muted); font-size:.7em; }
.rds-year-events-month > div { display:grid; gap:.45rem; padding:.65rem; }
.rds-year-events-month article { display:grid; grid-template-columns:58px 1fr auto; align-items:center; gap:.7rem; padding:.65rem; background:var(--rds-tool-soft); border-radius:11px; }
.rds-year-event-date { display:flex; min-height:52px; flex-direction:column; align-items:center; justify-content:center; color:var(--rds-tool-accent); background:var(--rds-tool-bg); border:1px solid var(--rds-tool-border); border-radius:9px; text-decoration:none; }
.rds-year-event-date strong { font-size:1.05em; }
.rds-year-event-date span { color:var(--rds-tool-muted); font-size:.62em; }
.rds-year-events-month article > div strong { display:block; font-size:.82em; line-height:1.75; }
.rds-year-events-month article > div small { display:block; color:var(--rds-tool-muted); font-size:.66em; }
.rds-year-events-month article > em { padding:.08rem .42rem; color:var(--rds-tool-danger); background:rgba(161,61,76,.09); border-radius:999px; font-size:.68em; font-style:normal; }
.rds-year-events-empty { padding:1rem; text-align:center; background:var(--rds-tool-soft); border-radius:13px; }
.rds-year-events-empty strong { display:block; margin-bottom:.3rem; }
.rds-year-events-empty p,.rds-year-filter-empty { margin:0; color:var(--rds-tool-muted); font-size:.78em; line-height:1.9; }
.rds-year-filter-empty { padding:.8rem; text-align:center; background:var(--rds-tool-soft); border-radius:11px; }
.rds-birthday-hero { display:flex; align-items:baseline; gap:.45rem; flex-wrap:wrap; }
.rds-birthday-hero span,.rds-birthday-hero small { color:var(--rds-tool-muted); font-size:.82em; }
.rds-birthday-hero strong { color:var(--rds-tool-accent); font-size:1.55em; }
@media(max-width:760px){
    .rds-year-events-summary { grid-template-columns:1fr; }
}
@media(max-width:520px){
    .rds-countdown-featured { grid-template-columns:1fr; }
    .rds-countdown-featured b { grid-column:auto; grid-row:auto; justify-self:start; }
    .rds-year-events-picker { align-items:stretch; flex-direction:column; }
    .rds-year-events-picker label { max-width:none; }
    .rds-year-events-month article { grid-template-columns:50px 1fr; }
    .rds-year-events-month article > em { grid-column:2; justify-self:start; }
}