/* ============================================================
   Калкулатори — добавка върху blog-shell.min.css.

   Токените са от index.html (Nunito, #6300ff, #1acc8d), защото
   страницата живее на opti.estate и не бива да е чуждо тяло.
   Системата е от бранд бука: 60/30/10, заоблено, меки сияния,
   щедро пространство, eyebrow с ✦, големи числа.

   Подписът е в движението: редовете на сметката се СГЛОБЯВАТ,
   докато човек пише — „хаос → ред", както казва бранд букът.
   ============================================================ */

.calc-section { padding: 8.5rem 5% 4rem; }
.calc-wrap { max-width: 1200px; margin: 0 auto; }

/* Трошките ги има и в blog.css, но калкулаторите не го зареждат — без
   тези редове връзките излизаха подчертани и залепени за етикета. */
.crumbs {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-bottom: 1.6rem;
    color: #6b6088;
    font-size: .85rem;
}
.crumbs a { color: #6b6088; text-decoration: none; }
.crumbs a:hover { color: #6300ff; text-decoration: underline; }
.crumbs span[aria-current] { color: #2a1a4a; font-weight: 700; }

/* ---------- заглавна част ---------- */
.calc-top { max-width: 640px; margin-bottom: 2rem; }
.calc-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .9rem;
    border: 1px solid rgba(99, 0, 255, .18);
    border-radius: 999px;
    background: rgba(99, 0, 255, .07);
    color: #6300ff;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.calc-top h1 {
    margin: 1rem 0 .7rem;
    font-size: clamp(2rem, 4.2vw, 2.9rem);
    font-weight: 800;
    letter-spacing: -1.1px;
    line-height: 1.1;
    color: #2a1a4a;
}
.calc-top > p { margin: 0; color: #5b5175; font-size: 1.06rem; line-height: 1.7; }

/* ---------- самият калкулатор ---------- */
.calc {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 1.4rem;
    align-items: start;
    margin-top: 2.2rem;
}
/* меко сияние отзад — мотивът от бранд бука, но приглушен */
.calc::before {
    content: '';
    position: absolute;
    inset: -60px -40px auto auto;
    width: 380px; height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 204, 141, .16), transparent 62%);
    filter: blur(20px);
    pointer-events: none;
    z-index: 0;
}
.calc > * { position: relative; z-index: 1; }

.calc-form,
.calc-out {
    border: 1px solid #ece5ff;
    border-radius: 22px;
    background: #fff;
    box-shadow: 0 6px 22px rgba(60, 26, 120, .05);
}
.calc-form { padding: 1.7rem 1.8rem 1.9rem; }

.calc-field { margin-bottom: 1.15rem; }
.calc-field:last-child { margin-bottom: 0; }
.calc-field > label {
    display: block;
    margin-bottom: .45rem;
    color: #2a1a4a;
    font-size: .92rem;
    font-weight: 700;
}
.calc-hint { display: block; margin-top: .35rem; color: #7a6f95; font-size: .8rem; line-height: 1.5; }

.calc-input {
    position: relative;
    display: flex;
    align-items: center;
}
.calc-input input,
.calc-input select {
    width: 100%;
    min-height: 50px;
    padding: 0 2.6rem 0 1rem;
    border: 2px solid #e7dffb;
    border-radius: 14px;
    background: #fff;
    color: #2a1a4a;
    font: inherit;
    font-size: 1.02rem;
    font-weight: 700;
    appearance: none;
    transition: border-color .15s;
}
.calc-input select { padding-right: 2.6rem; cursor: pointer; }
.calc-input input:focus,
.calc-input select:focus { outline: none; border-color: #6300ff; }
.calc-input .unit {
    position: absolute;
    right: 1rem;
    color: #8b81a0;
    font-size: .95rem;
    font-weight: 700;
    pointer-events: none;
}
.calc-input.has-select::after {
    content: '';
    position: absolute; right: 1.05rem;
    width: 8px; height: 8px;
    border-right: 2px solid #8b81a0;
    border-bottom: 2px solid #8b81a0;
    transform: rotate(45deg) translateY(-3px);
    pointer-events: none;
}

/* превключвател */
.calc-toggles { display: flex; flex-wrap: wrap; gap: .5rem; }
.calc-chip {
    appearance: none;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    min-height: 44px;
    padding: 0 1rem;
    border: 1px solid #e7dffb;
    border-radius: 999px;
    background: #fff;
    color: #5b5175;
    font: inherit;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
}
.calc-chip:hover { border-color: #c3a9ff; color: #6300ff; }
.calc-chip[aria-pressed="true"] {
    background: rgba(26, 204, 141, .12);
    border-color: rgba(26, 204, 141, .45);
    color: #0a6a49;
}
.calc-chip .tick { width: 15px; height: 15px; display: grid; place-items: center; }

/* ---------- сметката ---------- */
.calc-out { padding: 1.7rem 1.8rem 1.9rem; position: sticky; top: 130px; }
.calc-out h2 {
    margin: 0 0 1.1rem;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #6b6088;
}
.calc-lines { list-style: none; margin: 0; padding: 0; }
.calc-lines li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 1rem;
    padding: .68rem 0;
    border-bottom: 1px dashed #ece5ff;
    color: #453b63;
    font-size: .95rem;
    /* редовете се сглобяват, вместо да изникват наведнъж */
    animation: calcIn .26s ease both;
}
.calc-lines li b { color: #2a1a4a; font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }
.calc-lines li .sub { display: block; color: #8b81a0; font-size: .78rem; margin-top: .15rem; }
.calc-lines li[hidden] { display: none; }
@keyframes calcIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .calc-lines li { animation: none; } }

.calc-total {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 1rem;
    margin-top: 1.1rem;
    padding-top: 1.1rem;
    border-top: 2px solid #ece5ff;
}
.calc-total span { color: #2a1a4a; font-size: 1rem; font-weight: 800; }
.calc-total b {
    font-size: clamp(1.6rem, 3.2vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -1px;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(135deg, #6300ff, #1acc8d);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.calc-total-sub { margin: .35rem 0 0; color: #7a6f95; font-size: .85rem; }

.calc-note {
    margin: 1.2rem 0 0;
    padding: .85rem 1rem;
    border: 1px solid #ffe2a8;
    border-radius: 12px;
    background: #fff8e6;
    color: #6b5320;
    font-size: .83rem;
    line-height: 1.6;
}
.calc-note b { color: #543f14; }

/* ---------- обяснителната част ---------- */
.calc-body { max-width: 760px; margin: 3.4rem 0 0; font-size: 1.04rem; line-height: 1.78; color: #453b63; }
.calc-body h2 { margin: 2.4rem 0 .8rem; font-size: 1.4rem; font-weight: 800; letter-spacing: -.4px; color: #2a1a4a; scroll-margin-top: 130px; }
.calc-body h3 { margin: 1.7rem 0 .5rem; font-size: 1.06rem; font-weight: 800; color: #2a1a4a; }
.calc-body p { margin: 0 0 1.15rem; }
.calc-body ul { margin: 0 0 1.15rem; padding-left: 1.25rem; }
.calc-body li { margin-bottom: .5rem; }
.calc-body li::marker { color: #6300ff; }
.calc-body strong { color: #2a1a4a; font-weight: 700; }
.calc-body a { color: #6300ff; }

/* ---------- други калкулатори ---------- */
.calc-more { max-width: 1200px; margin: 3.2rem auto 0; }
.calc-more > b { display: block; margin-bottom: 1rem; font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #6b6088; }
.calc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
/* Шест карти в четири колони оставят разкъсан втори ред — три колони ги подреждат 3+3 и 3+2. */
@media (min-width: 900px) { .calc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.calc-card {
    display: block;
    padding: 1.3rem 1.4rem;
    border: 1px solid #ece5ff;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 6px 22px rgba(60, 26, 120, .05);
    text-decoration: none;
    color: inherit;
    transition: transform .18s, border-color .18s;
}
.calc-card:hover { transform: translateY(-2px); border-color: #d9c9ff; }
.calc-card .tile {
    display: grid; place-items: center;
    width: 42px; height: 42px;
    margin-bottom: .8rem;
    border-radius: 13px;
    background: linear-gradient(135deg, rgba(99, 0, 255, .1), rgba(26, 204, 141, .14));
    color: #6300ff;
}
.calc-card h3 { margin: 0 0 .3rem; font-size: 1.05rem; font-weight: 800; color: #2a1a4a; }
.calc-card p { margin: 0; color: #5b5175; font-size: .9rem; line-height: 1.55; }

@media (max-width: 1000px) {
    .calc { grid-template-columns: minmax(0, 1fr); }
    .calc-out { position: static; }
}
@media (max-width: 768px) {
    .calc-section { padding: 1.6rem 1.1rem 3rem; }
    .calc-form, .calc-out { padding: 1.3rem 1.2rem 1.5rem; border-radius: 18px; }
    .calc::before { display: none; }
}