/**
 * Kalkulator owulacji — base layout (structure only).
 */

.pbn-tool-kalkulator-owulacji .pbn-tool-ui {
    display: block;
}

.ko-wrap {
    display: flex;
    flex-direction: column;
    gap: var(--space-m, 1rem);
    max-width: 780px;
    margin: 0 auto;
}

/* ── Form ── */

.ko-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-m, 1rem);
    padding: var(--space-l, 1.5rem);
    background: var(--ko-form-bg, #f9fafb);
    border: 1px solid var(--ko-border, rgba(0,0,0,0.1));
    border-radius: var(--radius-lg, 12px);
}

.ko-form-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs, 0.375rem);
}

.ko-form-row-double {
    flex-direction: row;
    gap: var(--space-m, 1rem);
}

.ko-form-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs, 0.375rem);
}

.ko-label {
    font-weight: 600;
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--heading-color, inherit);
}

.ko-input {
    padding: var(--space-xs, 0.375rem) var(--space-m, 1rem);
    border: 1px solid var(--ko-border, rgba(0,0,0,0.15));
    border-radius: var(--radius-sm, 6px);
    font-family: inherit;
    font-size: var(--font-size-base, 1rem);
    background: var(--ko-input-bg, #fff);
    color: var(--text-color, inherit);
}

.ko-input:focus {
    outline: 2px solid var(--primary-color, #2563eb);
    outline-offset: 2px;
    border-color: var(--primary-color, #2563eb);
}

.ko-input[readonly] {
    background: var(--ko-form-bg, #f3f4f6);
    cursor: not-allowed;
    opacity: 0.8;
}

.ko-number-input {
    max-width: 120px;
}

.ko-hint {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary, #6b7280);
}

.ko-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-s, 0.5rem) var(--space-xl, 2rem);
    border: none;
    border-radius: var(--radius-sm, 6px);
    background: var(--primary-color, #2563eb);
    color: var(--primary-contrast, #fff);
    font-family: inherit;
    font-size: var(--font-size-base, 1rem);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    align-self: flex-start;
}

.ko-btn:hover,
.ko-btn:focus-visible {
    background: var(--primary-hover, #1d4ed8);
    outline: none;
}

/* ── Results ── */

.ko-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-m, 1rem);
}

.ko-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-m, 1rem);
}

.ko-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-m, 1rem);
    background: var(--ko-card-bg, #fff);
    border: 1px solid var(--ko-border, rgba(0,0,0,0.1));
    border-radius: var(--radius-md, 8px);
    text-align: center;
}

.ko-card-emphasis {
    border-color: var(--ko-fertile-color, #ec4899);
    border-width: 2px;
    background: var(--ko-fertile-bg, #fdf2f8);
}

.ko-card-ovulation {
    border-color: var(--ko-ovulation-color, #8b5cf6);
    border-width: 2px;
    background: var(--ko-ovulation-bg, #f5f3ff);
}

.ko-card-title {
    font-size: var(--font-size-sm, 0.875rem);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary, #6b7280);
}

.ko-card-value {
    font-size: var(--font-size-lg, 1.125rem);
    font-weight: 700;
    color: var(--heading-color, inherit);
}

.ko-card-value-big {
    font-size: var(--font-size-2xl, 1.5rem);
}

.ko-range-sep {
    margin: 0 0.3em;
    color: var(--text-secondary, #6b7280);
}

/* ── Fertile strip ── */

.ko-fertile-strip {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: var(--space-xs, 0.375rem);
}

.ko-fertile-day {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 600;
    background: var(--ko-fertile-color, #ec4899);
    color: #fff;
    cursor: default;
}

.ko-fertile-day-ovulation {
    background: var(--ko-ovulation-color, #8b5cf6);
    box-shadow: 0 0 0 3px var(--ko-ovulation-ring, rgba(139, 92, 246, 0.3));
}

/* ── Calendar ── */

.ko-calendar-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-m, 1rem);
}

.ko-section-title {
    font-size: var(--font-size-lg, 1.125rem);
    font-weight: 700;
    color: var(--heading-color, inherit);
    margin: 0;
}

.ko-calendar-legend {
    display: flex;
    gap: var(--space-m, 1rem);
    flex-wrap: wrap;
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary, #6b7280);
}

.ko-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ko-legend-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.ko-legend-ovulation { background: var(--ko-ovulation-color, #8b5cf6); }
.ko-legend-fertile { background: var(--ko-fertile-color, #ec4899); }
.ko-legend-period { background: var(--ko-period-color, #ef4444); }

.ko-calendar {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-m, 1rem);
}

.ko-cal-month {
    background: var(--ko-card-bg, #fff);
    border: 1px solid var(--ko-border, rgba(0,0,0,0.1));
    border-radius: var(--radius-md, 8px);
    padding: var(--space-s, 0.5rem);
}

.ko-cal-month-title {
    text-align: center;
    font-weight: 700;
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--heading-color, inherit);
    margin-bottom: var(--space-xs, 0.375rem);
}

.ko-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    text-align: center;
}

.ko-cal-hdr {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
    text-transform: uppercase;
    padding: 2px 0;
}

.ko-cal-day {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    font-size: var(--font-size-sm, 0.875rem);
    border-radius: 50%;
    cursor: default;
}

.ko-cal-day-empty {
    visibility: hidden;
}

.ko-cal-day-ovulation {
    background: var(--ko-ovulation-color, #8b5cf6);
    color: #fff;
    font-weight: 700;
}

.ko-cal-day-fertile {
    background: var(--ko-fertile-color, #ec4899);
    color: #fff;
}

.ko-cal-day-period {
    background: var(--ko-period-color, #ef4444);
    color: #fff;
}

/* ── Disclaimer ── */

.ko-disclaimer {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary, #6b7280);
    line-height: 1.4;
    padding: var(--space-m, 1rem);
    background: var(--ko-form-bg, #f9fafb);
    border: 1px solid var(--ko-border, rgba(0,0,0,0.08));
    border-radius: var(--radius-md, 8px);
    margin: 0;
}

/* ── Responsive ── */

@media (max-width: 600px) {
    .ko-cards {
        grid-template-columns: 1fr;
    }
    .ko-calendar {
        grid-template-columns: 1fr;
    }
    .ko-form-row-double {
        flex-direction: column;
    }
    .ko-fertile-day {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }
}