/* =========================================
   KALKULAČKA – CLEAN VERZE
========================================= */

.kalkulacka-kontejner {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    max-width: 900px;
    margin: 20px auto;

    background: var(--back-page);
    color: var(--text-main);

    padding: 25px;
    border-radius: 12px;

    box-shadow: var(--shadow-soft);
    border: var(--border-light);
}

.kalkulacka-kontejner * {
    box-sizing: border-box;
}

/* ===== POPIS ===== */

.def-text-trika h2 {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
    line-height: 1.2;
    text-align: center;
}

.def-text-trika p {
    max-width: 800px;
    margin: 0 auto 10px;
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: center;
}

/* ===== NADPISY ===== */

.kalkulacka-kontejner h2 {
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--bg-light);
    font-size: 1.4rem;
}

/* ===== STEPS ===== */

.kalkulacka-kontejner .step {
    display: none;
}

.kalkulacka-kontejner .step.active {
    display: block;
}

/* ===== INPUTY ===== */

.kalkulacka-kontejner select,
.kalkulacka-kontejner input,
.kalkulacka-kontejner textarea {
    width: 100%;
    padding: 10px 12px;
    margin: 5px 0 15px;

    border: 1px solid var(--bg-light);
    border-radius: 6px;

    background: var(--back-page);
    color: var(--text-main);

    transition: var(--transition);
}

.kalkulacka-kontejner input::placeholder,
.kalkulacka-kontejner textarea::placeholder {
    color: var(--text-muted);
}

.kalkulacka-kontejner select:focus,
.kalkulacka-kontejner input:focus,
.kalkulacka-kontejner textarea:focus {
    border-color: var(--secondary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(31, 111, 120, 0.15);
}

/* ===== GRID ===== */

.kalkulacka-kontejner .form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

/* ===== BLOKY ===== */

.kalkulacka-kontejner .box {
    border: var(--border-light);
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 10px;
    background: var(--bg-light);
}

/* ===== POTISK ===== */

.kalkulacka-kontejner .potisk {
    border: var(--border-light);
    padding: 15px;
    margin: 15px 0;
    border-radius: 10px;
    background: var(--back-page);
    transition: var(--transition);
}

.kalkulacka-kontejner .potisk:hover {
    box-shadow: var(--shadow-soft);
}

.kalkulacka-kontejner .potisk-row {
    display: flex;
    gap: 20px;
    align-items: center;
}

.kalkulacka-kontejner .potisk-right img {
    width: 120px;
    border-radius: 8px;
    border: var(--border-light);
}



/* CTA */

.kalkulacka-kontejner #btnAddFirst {
    margin-top: 25px;
    width: 100%;
    font-size: 1rem;
    padding: 14px;
}


/* ===== CENA ===== */

.kalkulacka-kontejner #cena {
    font-size: 26px;
    font-weight: 900;
    color: var(--secondary); /* místo random zelené */
}

.kalkulacka-kontejner .price-box {
    font-size: 18px;
    font-weight: 600;
    margin-top: 20px;

    background: var(--bg-light);
    padding: 12px 16px;
    border-radius: 8px;
}

/* ===== KOŠÍK ===== */

.kalkulacka-kontejner #kosik .box {
    background: var(--back-page);
    border-left: 4px solid var(--primary);
}

/* ===== FORM ===== */

.kalkulacka-kontejner .contact-form-container {
    margin-top: 40px;
}

.kalkulacka-kontejner .poptavka-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.kalkulacka-kontejner .form-row {
    display: flex;
    gap: 15px;
}

.kalkulacka-kontejner .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===== CENTER ===== */

.kalkulacka-kontejner .center {
    text-align: center;
}

/* ===== MOBILE ===== */

@media (max-width: 768px){

    .kalkulacka-kontejner .form-row {
        flex-direction: column;
    }

}