/* ============================================================
   Days Calculator — days-calculator.css
   calcdaystime.com — Smart Tools Suite
   ============================================================ */

/* ── Wrapper ── */
#sts-dc-wrap {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 780px;
    margin: 0 auto 2rem;
    background: #fff;
    border: 1px solid #dce4ef;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(26,58,92,.07);
}

/* ── Tabs ── */
.sts-dc__tabs {
    display: flex;
    background: #f7f9fc;
    border-bottom: 1px solid #dce4ef;
    overflow-x: auto;
    scrollbar-width: none;
}
.sts-dc__tabs::-webkit-scrollbar { display: none; }

.sts-dc__tab {
    flex-shrink: 0;
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 500;
    color: #6b7a8d;
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2.5px solid transparent;
    white-space: nowrap;
    transition: all .18s;
    font-family: inherit;
    position: relative;
}
.sts-dc__tab:hover {
    color: #1D9E75;
    background: rgba(29,158,117,.06);
}
.sts-dc__tab:active {
    background: rgba(29,158,117,.12);
    color: #0F6E56;
}
.sts-dc__tab.sts-dc--active {
    color: #1D9E75;
    border-bottom-color: #1D9E75;
    background: #fff;
    font-weight: 600;
}

/* ── Panel ── */
.sts-dc__panel {
    padding: 1.25rem;
    display: none;
}
.sts-dc__panel.sts-dc--active { display: block; }

/* ── Date row ── */
.sts-dc__date-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 12px;
}
.sts-dc__field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.sts-dc__lbl {
    font-size: 11px;
    font-weight: 600;
    color: #7a9ab5;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}
.sts-dc__input {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid #c4d0de;
    border-radius: 8px;
    background: #f7f9fc;
    color: #1A3A5C;
    font-size: 14px;
    font-family: inherit;
    transition: border-color .15s, box-shadow .15s;
}
.sts-dc__input:focus {
    outline: none;
    border-color: #1D9E75;
    box-shadow: 0 0 0 3px rgba(29,158,117,.12);
    background: #fff;
}
.sts-dc__dayname {
    font-size: 12px;
    color: #1D9E75;
    font-weight: 600;
    min-height: 16px;
    letter-spacing: .2px;
}

/* ── Add/sub row ── */
.sts-dc__addsub-row {
    display: grid;
    grid-template-columns: 1fr 130px;
    gap: 14px;
    margin-bottom: 12px;
}
.sts-dc__op-toggle {
    display: flex;
    border: 1px solid #c4d0de;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 12px;
}
.sts-dc__op-btn {
    flex: 1;
    padding: 9px 8px;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: none;
    background: none;
    color: #6b7a8d;
    font-family: inherit;
    transition: all .15s;
}
.sts-dc__op-btn:hover:not(.sts-dc--active) {
    background: rgba(26,58,92,.06);
    color: #1A3A5C;
}
.sts-dc__op-btn.sts-dc--active {
    background: #1A3A5C;
    color: #fff;
    font-weight: 600;
}

/* ── Toggle row ── */
.sts-dc__toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    background: #f7f9fc;
    border-radius: 8px;
    margin-bottom: 12px;
    border: 1px solid #dce4ef;
}
.sts-dc__toggle-lbl { font-size: 13px; color: #5a6a7a; }
.sts-dc__toggle { position: relative; width: 38px; height: 21px; flex-shrink: 0; }
.sts-dc__toggle input { opacity: 0; width: 0; height: 0; }
.sts-dc__toggle-slider {
    position: absolute;
    inset: 0;
    background: #c4d0de;
    border-radius: 999px;
    cursor: pointer;
    transition: .2s;
}
.sts-dc__toggle-slider:before {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: .2s;
    box-shadow: 0 1px 3px rgba(0,0,0,.15);
}
.sts-dc__toggle input:checked + .sts-dc__toggle-slider { background: #1D9E75; }
.sts-dc__toggle input:checked + .sts-dc__toggle-slider:before { transform: translateX(17px); }

/* ── Section label ── */
.sts-dc__sec-lbl {
    font-size: 11px;
    font-weight: 600;
    color: #7a9ab5;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

/* ── Buttons ── */
.sts-dc__btn-row { display: flex; gap: 12px; margin-bottom: 1rem; flex-wrap: wrap; }

.sts-dc__btn-calc {
    padding: 10px 24px;
    background: #1D9E75;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all .15s;
    letter-spacing: .3px;
}
.sts-dc__btn-calc:hover { background: #0F6E56; transform: translateY(-1px); }
.sts-dc__btn-calc:active { background: #085041; transform: translateY(0); }

.sts-dc__btn-reset {
    padding: 10px 20px;
    background: none;
    color: #1A3A5C;
    border: 1.5px solid #1A3A5C;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all .15s;
    letter-spacing: .3px;
}
.sts-dc__btn-reset:hover { background: #1A3A5C; color: #fff; transform: translateY(-1px); }
.sts-dc__btn-reset:active { background: #0c2540; color: #fff; transform: translateY(0); }

/* ── Results ── */
.sts-dc__result {
    display: none;
    border-top: 1px solid #dce4ef;
    padding-top: 1.1rem;
    margin-top: .15rem;
}
.sts-dc__result.sts-dc--show { display: block; }

.sts-dc__direction {
    font-size: 13px;
    color: #5a6a7a;
    margin-bottom: 10px;
    padding: 7px 12px;
    background: #f7f9fc;
    border-radius: 8px;
    border: 1px solid #dce4ef;
}

.sts-dc__big-num {
    font-size: 52px;
    font-weight: 700;
    color: #1A3A5C;
    line-height: 1;
    margin-bottom: 4px;
    letter-spacing: -2px;
}
.sts-dc__big-lbl {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #7a9ab5;
    margin-bottom: 1rem;
}

/* ── Result date (add/sub) ── */
.sts-dc__result-date {
    font-size: 34px;
    font-weight: 700;
    color: #1A3A5C;
    margin-bottom: 4px;
    letter-spacing: -.5px;
}
.sts-dc__result-meta {
    font-size: 13px;
    color: #5a6a7a;
    margin-bottom: 1rem;
}

/* ── Cards ── */
.sts-dc__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 8px;
}
.sts-dc__card {
    background: #f7f9fc;
    border-radius: 8px;
    padding: 12px;
    border: 1px solid #dce4ef;
}
.sts-dc__card-val {
    font-size: 22px;
    font-weight: 700;
    color: #1A3A5C;
}
.sts-dc__card-lbl {
    font-size: 11px;
    color: #7a9ab5;
    margin-top: 2px;
    font-weight: 500;
}

/* ── Holiday grid ── */
.sts-dc__hol-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
    margin-bottom: 12px;
}
.sts-dc__hol-item {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    font-size: 13px;
    color: #1A3A5C;
    cursor: pointer;
    padding: 9px 11px;
    border-radius: 8px;
    border: 1px solid #dce4ef;
    transition: all .15s;
    font-weight: 500;
}
.sts-dc__hol-item:hover {
    border-color: #1D9E75;
    background: rgba(29,158,117,.04);
}
.sts-dc__hol-item input {
    width: 15px;
    height: 15px;
    cursor: pointer;
    accent-color: #1D9E75;
    margin-top: 1px;
    flex-shrink: 0;
}
.sts-dc__hol-date {
    font-size: 11px;
    color: #7a9ab5;
    display: block;
    margin-top: 2px;
    font-weight: 400;
}

/* ── Custom holiday ── */
.sts-dc__custom-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.sts-dc__custom-row input[type="date"] {
    flex: 1;
    min-width: 140px;
    padding: 8px 10px;
    border: 1px solid #c4d0de;
    border-radius: 8px;
    background: #f7f9fc;
    color: #1A3A5C;
    font-size: 13px;
    font-family: inherit;
}
.sts-dc__btn-add {
    padding: 8px 16px;
    background: #1A3A5C;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    transition: background .15s;
}
.sts-dc__btn-add:hover { background: #0c2540; }

.sts-dc__custom-list { margin-bottom: 10px; min-height: 4px; display: flex; flex-wrap: wrap; gap: 5px; }
.sts-dc__chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(29,158,117,.1);
    color: #0F6E56;
    font-size: 12px;
    font-weight: 500;
    padding: 3px 9px;
    border-radius: 999px;
    border: 1px solid rgba(29,158,117,.25);
}
.sts-dc__chip button {
    background: none;
    border: none;
    cursor: pointer;
    color: #0F6E56;
    font-size: 15px;
    padding: 0;
    line-height: 1;
    margin-left: 2px;
}

/* ── Excluded list ── */
.sts-dc__excluded {
    font-size: 12px;
    color: #7a5a00;
    margin-top: 8px;
    padding: 8px 11px;
    background: #fff8e6;
    border-radius: 8px;
    border: 1px solid #f0d080;
    line-height: 1.6;
    display: none;
}

/* ── Weekday grid ── */
.sts-dc__wkd-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-top: 10px;
}
.sts-dc__wkd-card {
    background: #f7f9fc;
    border: 1px solid #dce4ef;
    border-radius: 8px;
    padding: 10px 4px;
    text-align: center;
}
.sts-dc__wkd-card.sts-dc--weekend {
    border-color: rgba(29,158,117,.3);
    background: rgba(29,158,117,.05);
}
.sts-dc__wkd-name {
    font-size: 10px;
    color: #7a9ab5;
    text-transform: uppercase;
    letter-spacing: .8px;
    font-weight: 600;
}
.sts-dc__wkd-val {
    font-size: 20px;
    font-weight: 700;
    color: #1A3A5C;
    margin-top: 3px;
}

/* ── Mobile ── */
@media (max-width: 560px) {
    .sts-dc__panel { padding: .9rem; }
    .sts-dc__tab { padding: 10px 12px; font-size: 12px; }
    .sts-dc__date-row { grid-template-columns: 1fr; }
    .sts-dc__addsub-row { grid-template-columns: 1fr; }
    .sts-dc__hol-grid { grid-template-columns: 1fr; }
    .sts-dc__wkd-grid { grid-template-columns: repeat(4, 1fr); }
    .sts-dc__big-num { font-size: 40px; }
    .sts-dc__btn-row { gap: 8px; }
    .sts-dc__btn-calc, .sts-dc__btn-reset { width: 100%; text-align: center; }
}